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Sweden-Number/controls/edit.c

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/*
* Edit control
*
* Copyright David W. Metcalfe, 1994
* Copyright William Magro, 1995, 1996
* Copyright Frans van Dorsselaer, 1996, 1997
*
*/
/*
* please read EDIT.TODO (and update it when you change things)
*/
#include "config.h"
#include <string.h>
#include "winnt.h"
#include "win.h"
#include "wine/winbase16.h"
#include "combo.h"
#include "local.h"
#include "resource.h"
#include "debugtools.h"
#include "callback.h"
#include "tweak.h"
DECLARE_DEBUG_CHANNEL(combo)
DECLARE_DEBUG_CHANNEL(edit)
DECLARE_DEBUG_CHANNEL(relay)
#define BUFLIMIT_MULTI 65534 /* maximum buffer size (not including '\0')
FIXME: BTW, new specs say 65535 (do you dare ???) */
#define BUFLIMIT_SINGLE 32766 /* maximum buffer size (not including '\0') */
#define BUFSTART_MULTI 1024 /* starting size */
#define BUFSTART_SINGLE 256 /* starting size */
#define GROWLENGTH 64 /* buffers grow by this much */
#define HSCROLL_FRACTION 3 /* scroll window by 1/3 width */
/*
* extra flags for EDITSTATE.flags field
*/
#define EF_MODIFIED 0x0001 /* text has been modified */
#define EF_FOCUSED 0x0002 /* we have input focus */
#define EF_UPDATE 0x0004 /* notify parent of changed state on next WM_PAINT */
#define EF_VSCROLL_TRACK 0x0008 /* don't SetScrollPos() since we are tracking the thumb */
#define EF_HSCROLL_TRACK 0x0010 /* don't SetScrollPos() since we are tracking the thumb */
#define EF_VSCROLL_HACK 0x0020 /* we already have informed the user of the hacked handler */
#define EF_HSCROLL_HACK 0x0040 /* we already have informed the user of the hacked handler */
#define EF_AFTER_WRAP 0x0080 /* the caret is displayed after the last character of a
wrapped line, instead of in front of the next character */
#define EF_USE_SOFTBRK 0x0100 /* Enable soft breaks in text. */
typedef enum
{
END_0 = 0, /* line ends with terminating '\0' character */
END_WRAP, /* line is wrapped */
END_HARD, /* line ends with a hard return '\r\n' */
END_SOFT /* line ends with a soft return '\r\r\n' */
} LINE_END;
typedef struct tagLINEDEF {
INT length; /* bruto length of a line in bytes */
INT net_length; /* netto length of a line in visible characters */
LINE_END ending;
INT width; /* width of the line in pixels */
struct tagLINEDEF *next;
} LINEDEF;
typedef struct
{
HANDLE heap; /* our own heap */
LPSTR text; /* the actual contents of the control */
INT buffer_size; /* the size of the buffer */
INT buffer_limit; /* the maximum size to which the buffer may grow */
HFONT font; /* NULL means standard system font */
INT x_offset; /* scroll offset for multi lines this is in pixels
for single lines it's in characters */
INT line_height; /* height of a screen line in pixels */
INT char_width; /* average character width in pixels */
DWORD style; /* sane version of wnd->dwStyle */
WORD flags; /* flags that are not in es->style or wnd->flags (EF_XXX) */
INT undo_insert_count; /* number of characters inserted in sequence */
INT undo_position; /* character index of the insertion and deletion */
LPSTR undo_text; /* deleted text */
INT undo_buffer_size; /* size of the deleted text buffer */
INT selection_start; /* == selection_end if no selection */
INT selection_end; /* == current caret position */
CHAR password_char; /* == 0 if no password char, and for multi line controls */
INT left_margin; /* in pixels */
INT right_margin; /* in pixels */
RECT format_rect;
INT region_posx; /* Position of cursor relative to region: */
INT region_posy; /* -1: to left, 0: within, 1: to right */
EDITWORDBREAKPROC16 word_break_proc16;
EDITWORDBREAKPROCA word_break_proc32A;
INT line_count; /* number of lines */
INT y_offset; /* scroll offset in number of lines */
BOOL bCaptureState; /* flag indicating whether mouse was captured */
/*
* only for multi line controls
*/
INT lock_count; /* amount of re-entries in the EditWndProc */
INT tabs_count;
LPINT tabs;
INT text_width; /* width of the widest line in pixels */
LINEDEF *first_line_def; /* linked list of (soft) linebreaks */
HLOCAL16 hloc16; /* for controls receiving EM_GETHANDLE16 */
HLOCAL hloc32; /* for controls receiving EM_GETHANDLE */
} EDITSTATE;
#define SWAP_INT32(x,y) do { INT temp = (INT)(x); (x) = (INT)(y); (y) = temp; } while(0)
#define ORDER_INT(x,y) do { if ((INT)(y) < (INT)(x)) SWAP_INT32((x),(y)); } while(0)
#define SWAP_UINT32(x,y) do { UINT temp = (UINT)(x); (x) = (UINT)(y); (y) = temp; } while(0)
#define ORDER_UINT(x,y) do { if ((UINT)(y) < (UINT)(x)) SWAP_UINT32((x),(y)); } while(0)
#define DPRINTF_EDIT_NOTIFY(hwnd, str) \
do {TRACE_(edit)("notification " str " sent to hwnd=%08x\n", \
(UINT)(hwnd));} while(0)
/* used for disabled or read-only edit control */
#define EDIT_SEND_CTLCOLORSTATIC(wnd,hdc) \
(SendMessageA((wnd)->parent->hwndSelf, WM_CTLCOLORSTATIC, \
(WPARAM)(hdc), (LPARAM)(wnd)->hwndSelf))
#define EDIT_SEND_CTLCOLOR(wnd,hdc) \
(SendMessageA((wnd)->parent->hwndSelf, WM_CTLCOLOREDIT, \
(WPARAM)(hdc), (LPARAM)(wnd)->hwndSelf))
#define EDIT_NOTIFY_PARENT(wnd, wNotifyCode, str) \
do {DPRINTF_EDIT_NOTIFY((wnd)->parent->hwndSelf, str); \
SendMessageA((wnd)->parent->hwndSelf, WM_COMMAND, \
MAKEWPARAM((wnd)->wIDmenu, wNotifyCode), \
(LPARAM)(wnd)->hwndSelf);} while(0)
#define DPRINTF_EDIT_MSG16(str) \
TRACE_(edit)(\
"16 bit : " str ": hwnd=%08x, wParam=%08x, lParam=%08x\n", \
(UINT)hwnd, (UINT)wParam, (UINT)lParam)
#define DPRINTF_EDIT_MSG32(str) \
TRACE_(edit)(\
"32 bit : " str ": hwnd=%08x, wParam=%08x, lParam=%08x\n", \
(UINT)hwnd, (UINT)wParam, (UINT)lParam)
/*********************************************************************
*
* Declarations
*
*/
/*
* These functions have trivial implementations
* We still like to call them internally
* "static inline" makes them more like macro's
*/
static inline BOOL EDIT_EM_CanUndo(WND *wnd, EDITSTATE *es);
static inline void EDIT_EM_EmptyUndoBuffer(WND *wnd, EDITSTATE *es);
static inline void EDIT_WM_Clear(WND *wnd, EDITSTATE *es);
static inline void EDIT_WM_Cut(WND *wnd, EDITSTATE *es);
/*
* Helper functions only valid for one type of control
*/
static void EDIT_BuildLineDefs_ML(WND *wnd, EDITSTATE *es);
static LPSTR EDIT_GetPasswordPointer_SL(WND *wnd, EDITSTATE *es);
static void EDIT_MoveDown_ML(WND *wnd, EDITSTATE *es, BOOL extend);
static void EDIT_MovePageDown_ML(WND *wnd, EDITSTATE *es, BOOL extend);
static void EDIT_MovePageUp_ML(WND *wnd, EDITSTATE *es, BOOL extend);
static void EDIT_MoveUp_ML(WND *wnd, EDITSTATE *es, BOOL extend);
/*
* Helper functions valid for both single line _and_ multi line controls
*/
static INT EDIT_CallWordBreakProc(WND *wnd, EDITSTATE *es, INT start, INT index, INT count, INT action);
static INT EDIT_CharFromPos(WND *wnd, EDITSTATE *es, INT x, INT y, LPBOOL after_wrap);
static void EDIT_ConfinePoint(WND *wnd, EDITSTATE *es, LPINT x, LPINT y);
static void EDIT_GetLineRect(WND *wnd, EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc);
static void EDIT_InvalidateText(WND *wnd, EDITSTATE *es, INT start, INT end);
static void EDIT_LockBuffer(WND *wnd, EDITSTATE *es);
static BOOL EDIT_MakeFit(WND *wnd, EDITSTATE *es, INT size);
static BOOL EDIT_MakeUndoFit(WND *wnd, EDITSTATE *es, INT size);
static void EDIT_MoveBackward(WND *wnd, EDITSTATE *es, BOOL extend);
static void EDIT_MoveEnd(WND *wnd, EDITSTATE *es, BOOL extend);
static void EDIT_MoveForward(WND *wnd, EDITSTATE *es, BOOL extend);
static void EDIT_MoveHome(WND *wnd, EDITSTATE *es, BOOL extend);
static void EDIT_MoveWordBackward(WND *wnd, EDITSTATE *es, BOOL extend);
static void EDIT_MoveWordForward(WND *wnd, EDITSTATE *es, BOOL extend);
static void EDIT_PaintLine(WND *wnd, EDITSTATE *es, HDC hdc, INT line, BOOL rev);
static INT EDIT_PaintText(WND *wnd, EDITSTATE *es, HDC hdc, INT x, INT y, INT line, INT col, INT count, BOOL rev);
static void EDIT_SetCaretPos(WND *wnd, EDITSTATE *es, INT pos, BOOL after_wrap);
static void EDIT_SetRectNP(WND *wnd, EDITSTATE *es, LPRECT lprc);
static void EDIT_UnlockBuffer(WND *wnd, EDITSTATE *es, BOOL force);
static INT EDIT_WordBreakProc(LPSTR s, INT index, INT count, INT action);
/*
* EM_XXX message handlers
*/
static LRESULT EDIT_EM_CharFromPos(WND *wnd, EDITSTATE *es, INT x, INT y);
static BOOL EDIT_EM_FmtLines(WND *wnd, EDITSTATE *es, BOOL add_eol);
static HLOCAL EDIT_EM_GetHandle(WND *wnd, EDITSTATE *es);
static HLOCAL16 EDIT_EM_GetHandle16(WND *wnd, EDITSTATE *es);
static INT EDIT_EM_GetLine(WND *wnd, EDITSTATE *es, INT line, LPSTR lpch);
static LRESULT EDIT_EM_GetSel(WND *wnd, EDITSTATE *es, LPUINT start, LPUINT end);
static LRESULT EDIT_EM_GetThumb(WND *wnd, EDITSTATE *es);
static INT EDIT_EM_LineFromChar(WND *wnd, EDITSTATE *es, INT index);
static INT EDIT_EM_LineIndex(WND *wnd, EDITSTATE *es, INT line);
static INT EDIT_EM_LineLength(WND *wnd, EDITSTATE *es, INT index);
static BOOL EDIT_EM_LineScroll(WND *wnd, EDITSTATE *es, INT dx, INT dy);
static LRESULT EDIT_EM_PosFromChar(WND *wnd, EDITSTATE *es, INT index, BOOL after_wrap);
static void EDIT_EM_ReplaceSel(WND *wnd, EDITSTATE *es, BOOL can_undo, LPCSTR lpsz_replace);
static LRESULT EDIT_EM_Scroll(WND *wnd, EDITSTATE *es, INT action);
static void EDIT_EM_ScrollCaret(WND *wnd, EDITSTATE *es);
static void EDIT_EM_SetHandle(WND *wnd, EDITSTATE *es, HLOCAL hloc);
static void EDIT_EM_SetHandle16(WND *wnd, EDITSTATE *es, HLOCAL16 hloc);
static void EDIT_EM_SetLimitText(WND *wnd, EDITSTATE *es, INT limit);
static void EDIT_EM_SetMargins(WND *wnd, EDITSTATE *es, INT action, INT left, INT right);
static void EDIT_EM_SetPasswordChar(WND *wnd, EDITSTATE *es, CHAR c);
static void EDIT_EM_SetSel(WND *wnd, EDITSTATE *es, UINT start, UINT end, BOOL after_wrap);
static BOOL EDIT_EM_SetTabStops(WND *wnd, EDITSTATE *es, INT count, LPINT tabs);
static BOOL EDIT_EM_SetTabStops16(WND *wnd, EDITSTATE *es, INT count, LPINT16 tabs);
static void EDIT_EM_SetWordBreakProc(WND *wnd, EDITSTATE *es, EDITWORDBREAKPROCA wbp);
static void EDIT_EM_SetWordBreakProc16(WND *wnd, EDITSTATE *es, EDITWORDBREAKPROC16 wbp);
static BOOL EDIT_EM_Undo(WND *wnd, EDITSTATE *es);
/*
* WM_XXX message handlers
*/
static void EDIT_WM_Char(WND *wnd, EDITSTATE *es, CHAR c, DWORD key_data);
static void EDIT_WM_Command(WND *wnd, EDITSTATE *es, INT code, INT id, HWND conrtol);
static void EDIT_WM_ContextMenu(WND *wnd, EDITSTATE *es, HWND hwnd, INT x, INT y);
static void EDIT_WM_Copy(WND *wnd, EDITSTATE *es);
static LRESULT EDIT_WM_Create(WND *wnd, EDITSTATE *es, LPCREATESTRUCTA cs);
static void EDIT_WM_Destroy(WND *wnd, EDITSTATE *es);
static LRESULT EDIT_WM_EraseBkGnd(WND *wnd, EDITSTATE *es, HDC dc);
static INT EDIT_WM_GetText(WND *wnd, EDITSTATE *es, INT count, LPSTR text);
static LRESULT EDIT_WM_HScroll(WND *wnd, EDITSTATE *es, INT action, INT pos, HWND scroll_bar);
static LRESULT EDIT_WM_KeyDown(WND *wnd, EDITSTATE *es, INT key, DWORD key_data);
static LRESULT EDIT_WM_KillFocus(WND *wnd, EDITSTATE *es, HWND window_getting_focus);
static LRESULT EDIT_WM_LButtonDblClk(WND *wnd, EDITSTATE *es, DWORD keys, INT x, INT y);
static LRESULT EDIT_WM_LButtonDown(WND *wnd, EDITSTATE *es, DWORD keys, INT x, INT y);
static LRESULT EDIT_WM_LButtonUp(WND *wnd, EDITSTATE *es, DWORD keys, INT x, INT y);
static LRESULT EDIT_WM_MouseMove(WND *wnd, EDITSTATE *es, DWORD keys, INT x, INT y);
static LRESULT EDIT_WM_NCCreate(WND *wnd, LPCREATESTRUCTA cs);
static void EDIT_WM_Paint(WND *wnd, EDITSTATE *es);
static void EDIT_WM_Paste(WND *wnd, EDITSTATE *es);
static void EDIT_WM_SetFocus(WND *wnd, EDITSTATE *es, HWND window_losing_focus);
static void EDIT_WM_SetFont(WND *wnd, EDITSTATE *es, HFONT font, BOOL redraw);
static void EDIT_WM_SetText(WND *wnd, EDITSTATE *es, LPCSTR text);
static void EDIT_WM_Size(WND *wnd, EDITSTATE *es, UINT action, INT width, INT height);
static LRESULT EDIT_WM_SysKeyDown(WND *wnd, EDITSTATE *es, INT key, DWORD key_data);
static void EDIT_WM_Timer(WND *wnd, EDITSTATE *es, INT id, TIMERPROC timer_proc);
static LRESULT EDIT_WM_VScroll(WND *wnd, EDITSTATE *es, INT action, INT pos, HWND scroll_bar);
/*********************************************************************
*
* EM_CANUNDO
*
*/
static inline BOOL EDIT_EM_CanUndo(WND *wnd, EDITSTATE *es)
{
return (es->undo_insert_count || lstrlenA(es->undo_text));
}
/*********************************************************************
*
* EM_EMPTYUNDOBUFFER
*
*/
static inline void EDIT_EM_EmptyUndoBuffer(WND *wnd, EDITSTATE *es)
{
es->undo_insert_count = 0;
*es->undo_text = '\0';
}
/*********************************************************************
*
* WM_CLEAR
*
*/
static inline void EDIT_WM_Clear(WND *wnd, EDITSTATE *es)
{
EDIT_EM_ReplaceSel(wnd, es, TRUE, "");
}
/*********************************************************************
*
* WM_CUT
*
*/
static inline void EDIT_WM_Cut(WND *wnd, EDITSTATE *es)
{
EDIT_WM_Copy(wnd, es);
EDIT_WM_Clear(wnd, es);
}
/*********************************************************************
*
* EditWndProc()
*
* The messages are in the order of the actual integer values
* (which can be found in include/windows.h)
* Whereever possible the 16 bit versions are converted to
* the 32 bit ones, so that we can 'fall through' to the
* helper functions. These are mostly 32 bit (with a few
* exceptions, clearly indicated by a '16' extension to their
* names).
*
*/
LRESULT WINAPI EditWndProc( HWND hwnd, UINT msg,
WPARAM wParam, LPARAM lParam )
{
WND *wnd = WIN_FindWndPtr(hwnd);
EDITSTATE *es = *(EDITSTATE **)((wnd)->wExtra);
LRESULT result = 0;
switch (msg) {
case WM_DESTROY:
DPRINTF_EDIT_MSG32("WM_DESTROY");
EDIT_WM_Destroy(wnd, es);
result = 0;
goto END;
case WM_NCCREATE:
DPRINTF_EDIT_MSG32("WM_NCCREATE");
result = EDIT_WM_NCCreate(wnd, (LPCREATESTRUCTA)lParam);
goto END;
}
if (!es)
{
result = DefWindowProcA(hwnd, msg, wParam, lParam);
goto END;
}
EDIT_LockBuffer(wnd, es);
switch (msg) {
case EM_GETSEL16:
DPRINTF_EDIT_MSG16("EM_GETSEL");
wParam = 0;
lParam = 0;
/* fall through */
case EM_GETSEL:
DPRINTF_EDIT_MSG32("EM_GETSEL");
result = EDIT_EM_GetSel(wnd, es, (LPUINT)wParam, (LPUINT)lParam);
break;
case EM_SETSEL16:
DPRINTF_EDIT_MSG16("EM_SETSEL");
if (SLOWORD(lParam) == -1)
EDIT_EM_SetSel(wnd, es, -1, 0, FALSE);
else
EDIT_EM_SetSel(wnd, es, LOWORD(lParam), HIWORD(lParam), FALSE);
if (!wParam)
EDIT_EM_ScrollCaret(wnd, es);
result = 1;
break;
case EM_SETSEL:
DPRINTF_EDIT_MSG32("EM_SETSEL");
EDIT_EM_SetSel(wnd, es, wParam, lParam, FALSE);
EDIT_EM_ScrollCaret(wnd, es);
result = 1;
break;
case EM_GETRECT16:
DPRINTF_EDIT_MSG16("EM_GETRECT");
if (lParam)
CONV_RECT32TO16(&es->format_rect, (LPRECT16)PTR_SEG_TO_LIN(lParam));
break;
case EM_GETRECT:
DPRINTF_EDIT_MSG32("EM_GETRECT");
if (lParam)
CopyRect((LPRECT)lParam, &es->format_rect);
break;
case EM_SETRECT16:
DPRINTF_EDIT_MSG16("EM_SETRECT");
if ((es->style & ES_MULTILINE) && lParam) {
RECT rc;
CONV_RECT16TO32((LPRECT16)PTR_SEG_TO_LIN(lParam), &rc);
EDIT_SetRectNP(wnd, es, &rc);
InvalidateRect(wnd->hwndSelf, NULL, TRUE);
}
break;
case EM_SETRECT:
DPRINTF_EDIT_MSG32("EM_SETRECT");
if ((es->style & ES_MULTILINE) && lParam) {
EDIT_SetRectNP(wnd, es, (LPRECT)lParam);
InvalidateRect(wnd->hwndSelf, NULL, TRUE);
}
break;
case EM_SETRECTNP16:
DPRINTF_EDIT_MSG16("EM_SETRECTNP");
if ((es->style & ES_MULTILINE) && lParam) {
RECT rc;
CONV_RECT16TO32((LPRECT16)PTR_SEG_TO_LIN(lParam), &rc);
EDIT_SetRectNP(wnd, es, &rc);
}
break;
case EM_SETRECTNP:
DPRINTF_EDIT_MSG32("EM_SETRECTNP");
if ((es->style & ES_MULTILINE) && lParam)
EDIT_SetRectNP(wnd, es, (LPRECT)lParam);
break;
case EM_SCROLL16:
DPRINTF_EDIT_MSG16("EM_SCROLL");
/* fall through */
case EM_SCROLL:
DPRINTF_EDIT_MSG32("EM_SCROLL");
result = EDIT_EM_Scroll(wnd, es, (INT)wParam);
break;
case EM_LINESCROLL16:
DPRINTF_EDIT_MSG16("EM_LINESCROLL");
wParam = (WPARAM)(INT)SHIWORD(lParam);
lParam = (LPARAM)(INT)SLOWORD(lParam);
/* fall through */
case EM_LINESCROLL:
DPRINTF_EDIT_MSG32("EM_LINESCROLL");
result = (LRESULT)EDIT_EM_LineScroll(wnd, es, (INT)wParam, (INT)lParam);
break;
case EM_SCROLLCARET16:
DPRINTF_EDIT_MSG16("EM_SCROLLCARET");
/* fall through */
case EM_SCROLLCARET:
DPRINTF_EDIT_MSG32("EM_SCROLLCARET");
EDIT_EM_ScrollCaret(wnd, es);
result = 1;
break;
case EM_GETMODIFY16:
DPRINTF_EDIT_MSG16("EM_GETMODIFY");
/* fall through */
case EM_GETMODIFY:
DPRINTF_EDIT_MSG32("EM_GETMODIFY");
result = ((es->flags & EF_MODIFIED) != 0);
break;
case EM_SETMODIFY16:
DPRINTF_EDIT_MSG16("EM_SETMODIFY");
/* fall through */
case EM_SETMODIFY:
DPRINTF_EDIT_MSG32("EM_SETMODIFY");
if (wParam)
es->flags |= EF_MODIFIED;
else
es->flags &= ~(EF_MODIFIED | EF_UPDATE); /* reset pending updates */
break;
case EM_GETLINECOUNT16:
DPRINTF_EDIT_MSG16("EM_GETLINECOUNT");
/* fall through */
case EM_GETLINECOUNT:
DPRINTF_EDIT_MSG32("EM_GETLINECOUNT");
result = (es->style & ES_MULTILINE) ? es->line_count : 1;
break;
case EM_LINEINDEX16:
DPRINTF_EDIT_MSG16("EM_LINEINDEX");
if ((INT16)wParam == -1)
wParam = (WPARAM)-1;
/* fall through */
case EM_LINEINDEX:
DPRINTF_EDIT_MSG32("EM_LINEINDEX");
result = (LRESULT)EDIT_EM_LineIndex(wnd, es, (INT)wParam);
break;
case EM_SETHANDLE16:
DPRINTF_EDIT_MSG16("EM_SETHANDLE");
EDIT_EM_SetHandle16(wnd, es, (HLOCAL16)wParam);
break;
case EM_SETHANDLE:
DPRINTF_EDIT_MSG32("EM_SETHANDLE");
EDIT_EM_SetHandle(wnd, es, (HLOCAL)wParam);
break;
case EM_GETHANDLE16:
DPRINTF_EDIT_MSG16("EM_GETHANDLE");
result = (LRESULT)EDIT_EM_GetHandle16(wnd, es);
break;
case EM_GETHANDLE:
DPRINTF_EDIT_MSG32("EM_GETHANDLE");
result = (LRESULT)EDIT_EM_GetHandle(wnd, es);
break;
case EM_GETTHUMB16:
DPRINTF_EDIT_MSG16("EM_GETTHUMB");
/* fall through */
case EM_GETTHUMB:
DPRINTF_EDIT_MSG32("EM_GETTHUMB");
result = EDIT_EM_GetThumb(wnd, es);
break;
/* messages 0x00bf and 0x00c0 missing from specs */
case WM_USER+15:
DPRINTF_EDIT_MSG16("undocumented WM_USER+15, please report");
/* fall through */
case 0x00bf:
DPRINTF_EDIT_MSG32("undocumented 0x00bf, please report");
result = DefWindowProcA(hwnd, msg, wParam, lParam);
break;
case WM_USER+16:
DPRINTF_EDIT_MSG16("undocumented WM_USER+16, please report");
/* fall through */
case 0x00c0:
DPRINTF_EDIT_MSG32("undocumented 0x00c0, please report");
result = DefWindowProcA(hwnd, msg, wParam, lParam);
break;
case EM_LINELENGTH16:
DPRINTF_EDIT_MSG16("EM_LINELENGTH");
/* fall through */
case EM_LINELENGTH:
DPRINTF_EDIT_MSG32("EM_LINELENGTH");
result = (LRESULT)EDIT_EM_LineLength(wnd, es, (INT)wParam);
break;
case EM_REPLACESEL16:
DPRINTF_EDIT_MSG16("EM_REPLACESEL");
lParam = (LPARAM)PTR_SEG_TO_LIN((SEGPTR)lParam);
/* fall through */
case EM_REPLACESEL:
DPRINTF_EDIT_MSG32("EM_REPLACESEL");
EDIT_EM_ReplaceSel(wnd, es, (BOOL)wParam, (LPCSTR)lParam);
result = 1;
break;
/* message 0x00c3 missing from specs */
case WM_USER+19:
DPRINTF_EDIT_MSG16("undocumented WM_USER+19, please report");
/* fall through */
case 0x00c3:
DPRINTF_EDIT_MSG32("undocumented 0x00c3, please report");
result = DefWindowProcA(hwnd, msg, wParam, lParam);
break;
case EM_GETLINE16:
DPRINTF_EDIT_MSG16("EM_GETLINE");
lParam = (LPARAM)PTR_SEG_TO_LIN((SEGPTR)lParam);
/* fall through */
case EM_GETLINE:
DPRINTF_EDIT_MSG32("EM_GETLINE");
result = (LRESULT)EDIT_EM_GetLine(wnd, es, (INT)wParam, (LPSTR)lParam);
break;
case EM_LIMITTEXT16:
DPRINTF_EDIT_MSG16("EM_LIMITTEXT");
/* fall through */
case EM_SETLIMITTEXT:
DPRINTF_EDIT_MSG32("EM_SETLIMITTEXT");
EDIT_EM_SetLimitText(wnd, es, (INT)wParam);
break;
case EM_CANUNDO16:
DPRINTF_EDIT_MSG16("EM_CANUNDO");
/* fall through */
case EM_CANUNDO:
DPRINTF_EDIT_MSG32("EM_CANUNDO");
result = (LRESULT)EDIT_EM_CanUndo(wnd, es);
break;
case EM_UNDO16:
DPRINTF_EDIT_MSG16("EM_UNDO");
/* fall through */
case EM_UNDO:
/* fall through */
case WM_UNDO:
DPRINTF_EDIT_MSG32("EM_UNDO / WM_UNDO");
result = (LRESULT)EDIT_EM_Undo(wnd, es);
break;
case EM_FMTLINES16:
DPRINTF_EDIT_MSG16("EM_FMTLINES");
/* fall through */
case EM_FMTLINES:
DPRINTF_EDIT_MSG32("EM_FMTLINES");
result = (LRESULT)EDIT_EM_FmtLines(wnd, es, (BOOL)wParam);
break;
case EM_LINEFROMCHAR16:
DPRINTF_EDIT_MSG16("EM_LINEFROMCHAR");
/* fall through */
case EM_LINEFROMCHAR:
DPRINTF_EDIT_MSG32("EM_LINEFROMCHAR");
result = (LRESULT)EDIT_EM_LineFromChar(wnd, es, (INT)wParam);
break;
/* message 0x00ca missing from specs */
case WM_USER+26:
DPRINTF_EDIT_MSG16("undocumented WM_USER+26, please report");
/* fall through */
case 0x00ca:
DPRINTF_EDIT_MSG32("undocumented 0x00ca, please report");
result = DefWindowProcA(hwnd, msg, wParam, lParam);
break;
case EM_SETTABSTOPS16:
DPRINTF_EDIT_MSG16("EM_SETTABSTOPS");
result = (LRESULT)EDIT_EM_SetTabStops16(wnd, es, (INT)wParam, (LPINT16)PTR_SEG_TO_LIN((SEGPTR)lParam));
break;
case EM_SETTABSTOPS:
DPRINTF_EDIT_MSG32("EM_SETTABSTOPS");
result = (LRESULT)EDIT_EM_SetTabStops(wnd, es, (INT)wParam, (LPINT)lParam);
break;
case EM_SETPASSWORDCHAR16:
DPRINTF_EDIT_MSG16("EM_SETPASSWORDCHAR");
/* fall through */
case EM_SETPASSWORDCHAR:
DPRINTF_EDIT_MSG32("EM_SETPASSWORDCHAR");
EDIT_EM_SetPasswordChar(wnd, es, (CHAR)wParam);
break;
case EM_EMPTYUNDOBUFFER16:
DPRINTF_EDIT_MSG16("EM_EMPTYUNDOBUFFER");
/* fall through */
case EM_EMPTYUNDOBUFFER:
DPRINTF_EDIT_MSG32("EM_EMPTYUNDOBUFFER");
EDIT_EM_EmptyUndoBuffer(wnd, es);
break;
case EM_GETFIRSTVISIBLELINE16:
DPRINTF_EDIT_MSG16("EM_GETFIRSTVISIBLELINE");
result = es->y_offset;
break;
case EM_GETFIRSTVISIBLELINE:
DPRINTF_EDIT_MSG32("EM_GETFIRSTVISIBLELINE");
result = (es->style & ES_MULTILINE) ? es->y_offset : es->x_offset;
break;
case EM_SETREADONLY16:
DPRINTF_EDIT_MSG16("EM_SETREADONLY");
/* fall through */
case EM_SETREADONLY:
DPRINTF_EDIT_MSG32("EM_SETREADONLY");
if (wParam) {
wnd->dwStyle |= ES_READONLY;
es->style |= ES_READONLY;
} else {
wnd->dwStyle &= ~ES_READONLY;
es->style &= ~ES_READONLY;
}
result = 1;
break;
case EM_SETWORDBREAKPROC16:
DPRINTF_EDIT_MSG16("EM_SETWORDBREAKPROC");
EDIT_EM_SetWordBreakProc16(wnd, es, (EDITWORDBREAKPROC16)lParam);
break;
case EM_SETWORDBREAKPROC:
DPRINTF_EDIT_MSG32("EM_SETWORDBREAKPROC");
EDIT_EM_SetWordBreakProc(wnd, es, (EDITWORDBREAKPROCA)lParam);
break;
case EM_GETWORDBREAKPROC16:
DPRINTF_EDIT_MSG16("EM_GETWORDBREAKPROC");
result = (LRESULT)es->word_break_proc16;
break;
case EM_GETWORDBREAKPROC:
DPRINTF_EDIT_MSG32("EM_GETWORDBREAKPROC");
result = (LRESULT)es->word_break_proc32A;
break;
case EM_GETPASSWORDCHAR16:
DPRINTF_EDIT_MSG16("EM_GETPASSWORDCHAR");
/* fall through */
case EM_GETPASSWORDCHAR:
DPRINTF_EDIT_MSG32("EM_GETPASSWORDCHAR");
result = es->password_char;
break;
/* The following EM_xxx are new to win95 and don't exist for 16 bit */
case EM_SETMARGINS:
DPRINTF_EDIT_MSG32("EM_SETMARGINS");
EDIT_EM_SetMargins(wnd, es, (INT)wParam, SLOWORD(lParam), SHIWORD(lParam));
break;
case EM_GETMARGINS:
DPRINTF_EDIT_MSG32("EM_GETMARGINS");
result = MAKELONG(es->left_margin, es->right_margin);
break;
case EM_GETLIMITTEXT:
DPRINTF_EDIT_MSG32("EM_GETLIMITTEXT");
result = es->buffer_limit;
break;
case EM_POSFROMCHAR:
DPRINTF_EDIT_MSG32("EM_POSFROMCHAR");
result = EDIT_EM_PosFromChar(wnd, es, (INT)wParam, FALSE);
break;
case EM_CHARFROMPOS:
DPRINTF_EDIT_MSG32("EM_CHARFROMPOS");
result = EDIT_EM_CharFromPos(wnd, es, SLOWORD(lParam), SHIWORD(lParam));
break;
case WM_GETDLGCODE:
DPRINTF_EDIT_MSG32("WM_GETDLGCODE");
result = (es->style & ES_MULTILINE) ?
DLGC_WANTALLKEYS | DLGC_HASSETSEL | DLGC_WANTCHARS | DLGC_WANTARROWS :
DLGC_HASSETSEL | DLGC_WANTCHARS | DLGC_WANTARROWS;
break;
case WM_CHAR:
DPRINTF_EDIT_MSG32("WM_CHAR");
EDIT_WM_Char(wnd, es, (CHAR)wParam, (DWORD)lParam);
break;
case WM_CLEAR:
DPRINTF_EDIT_MSG32("WM_CLEAR");
EDIT_WM_Clear(wnd, es);
break;
case WM_COMMAND:
DPRINTF_EDIT_MSG32("WM_COMMAND");
EDIT_WM_Command(wnd, es, HIWORD(wParam), LOWORD(wParam), (HWND)lParam);
break;
case WM_CONTEXTMENU:
DPRINTF_EDIT_MSG32("WM_CONTEXTMENU");
EDIT_WM_ContextMenu(wnd, es, (HWND)wParam, SLOWORD(lParam), SHIWORD(lParam));
break;
case WM_COPY:
DPRINTF_EDIT_MSG32("WM_COPY");
EDIT_WM_Copy(wnd, es);
break;
case WM_CREATE:
DPRINTF_EDIT_MSG32("WM_CREATE");
result = EDIT_WM_Create(wnd, es, (LPCREATESTRUCTA)lParam);
break;
case WM_CUT:
DPRINTF_EDIT_MSG32("WM_CUT");
EDIT_WM_Cut(wnd, es);
break;
case WM_ENABLE:
DPRINTF_EDIT_MSG32("WM_ENABLE");
InvalidateRect(hwnd, NULL, TRUE);
break;
case WM_ERASEBKGND:
DPRINTF_EDIT_MSG32("WM_ERASEBKGND");
result = EDIT_WM_EraseBkGnd(wnd, es, (HDC)wParam);
break;
case WM_GETFONT:
DPRINTF_EDIT_MSG32("WM_GETFONT");
result = (LRESULT)es->font;
break;
case WM_GETTEXT:
DPRINTF_EDIT_MSG32("WM_GETTEXT");
result = (LRESULT)EDIT_WM_GetText(wnd, es, (INT)wParam, (LPSTR)lParam);
break;
case WM_GETTEXTLENGTH:
DPRINTF_EDIT_MSG32("WM_GETTEXTLENGTH");
result = lstrlenA(es->text);
break;
case WM_HSCROLL:
DPRINTF_EDIT_MSG32("WM_HSCROLL");
result = EDIT_WM_HScroll(wnd, es, LOWORD(wParam), SHIWORD(wParam), (HWND)lParam);
break;
case WM_KEYDOWN:
DPRINTF_EDIT_MSG32("WM_KEYDOWN");
result = EDIT_WM_KeyDown(wnd, es, (INT)wParam, (DWORD)lParam);
break;
case WM_KILLFOCUS:
DPRINTF_EDIT_MSG32("WM_KILLFOCUS");
result = EDIT_WM_KillFocus(wnd, es, (HWND)wParam);
break;
case WM_LBUTTONDBLCLK:
DPRINTF_EDIT_MSG32("WM_LBUTTONDBLCLK");
result = EDIT_WM_LButtonDblClk(wnd, es, (DWORD)wParam, SLOWORD(lParam), SHIWORD(lParam));
break;
case WM_LBUTTONDOWN:
DPRINTF_EDIT_MSG32("WM_LBUTTONDOWN");
result = EDIT_WM_LButtonDown(wnd, es, (DWORD)wParam, SLOWORD(lParam), SHIWORD(lParam));
break;
case WM_LBUTTONUP:
DPRINTF_EDIT_MSG32("WM_LBUTTONUP");
result = EDIT_WM_LButtonUp(wnd, es, (DWORD)wParam, SLOWORD(lParam), SHIWORD(lParam));
break;
case WM_MOUSEACTIVATE:
/*
* FIXME: maybe DefWindowProc() screws up, but it seems that
* modalless dialog boxes need this. If we don't do this, the focus
* will _not_ be set by DefWindowProc() for edit controls in a
* modalless dialog box ???
*/
DPRINTF_EDIT_MSG32("WM_MOUSEACTIVATE");
SetFocus(wnd->hwndSelf);
result = MA_ACTIVATE;
break;
case WM_MOUSEMOVE:
/*
* DPRINTF_EDIT_MSG32("WM_MOUSEMOVE");
*/
result = EDIT_WM_MouseMove(wnd, es, (DWORD)wParam, SLOWORD(lParam), SHIWORD(lParam));
break;
case WM_PAINT:
DPRINTF_EDIT_MSG32("WM_PAINT");
EDIT_WM_Paint(wnd, es);
break;
case WM_PASTE:
DPRINTF_EDIT_MSG32("WM_PASTE");
EDIT_WM_Paste(wnd, es);
break;
case WM_SETFOCUS:
DPRINTF_EDIT_MSG32("WM_SETFOCUS");
EDIT_WM_SetFocus(wnd, es, (HWND)wParam);
break;
case WM_SETFONT:
DPRINTF_EDIT_MSG32("WM_SETFONT");
EDIT_WM_SetFont(wnd, es, (HFONT)wParam, LOWORD(lParam) != 0);
break;
case WM_SETTEXT:
DPRINTF_EDIT_MSG32("WM_SETTEXT");
EDIT_WM_SetText(wnd, es, (LPCSTR)lParam);
result = TRUE;
break;
case WM_SIZE:
DPRINTF_EDIT_MSG32("WM_SIZE");
EDIT_WM_Size(wnd, es, (UINT)wParam, LOWORD(lParam), HIWORD(lParam));
break;
case WM_SYSKEYDOWN:
DPRINTF_EDIT_MSG32("WM_SYSKEYDOWN");
result = EDIT_WM_SysKeyDown(wnd, es, (INT)wParam, (DWORD)lParam);
break;
case WM_TIMER:
DPRINTF_EDIT_MSG32("WM_TIMER");
EDIT_WM_Timer(wnd, es, (INT)wParam, (TIMERPROC)lParam);
break;
case WM_VSCROLL:
DPRINTF_EDIT_MSG32("WM_VSCROLL");
result = EDIT_WM_VScroll(wnd, es, LOWORD(wParam), SHIWORD(wParam), (HWND)(lParam));
break;
default:
result = DefWindowProcA(hwnd, msg, wParam, lParam);
break;
}
EDIT_UnlockBuffer(wnd, es, FALSE);
END:
WIN_ReleaseWndPtr(wnd);
return result;
}
/*********************************************************************
*
* EDIT_BuildLineDefs_ML
*
* Build linked list of text lines.
* Lines can end with '\0' (last line), a character (if it is wrapped),
* a soft return '\r\r\n' or a hard return '\r\n'
*
*/
static void EDIT_BuildLineDefs_ML(WND *wnd, EDITSTATE *es)
{
HDC dc;
HFONT old_font = 0;
LPSTR start, cp;
INT fw;
LINEDEF *current_def;
LINEDEF **previous_next;
current_def = es->first_line_def;
do {
LINEDEF *next_def = current_def->next;
HeapFree(es->heap, 0, current_def);
current_def = next_def;
} while (current_def);
es->line_count = 0;
es->text_width = 0;
dc = GetDC(wnd->hwndSelf);
if (es->font)
old_font = SelectObject(dc, es->font);
fw = es->format_rect.right - es->format_rect.left;
start = es->text;
previous_next = &es->first_line_def;
do {
current_def = HeapAlloc(es->heap, 0, sizeof(LINEDEF));
current_def->next = NULL;
cp = start;
while (*cp) {
if ((*cp == '\r') && (*(cp + 1) == '\n'))
break;
cp++;
}
if (!(*cp)) {
current_def->ending = END_0;
current_def->net_length = lstrlenA(start);
} else if ((cp > start) && (*(cp - 1) == '\r')) {
current_def->ending = END_SOFT;
current_def->net_length = cp - start - 1;
} else {
current_def->ending = END_HARD;
current_def->net_length = cp - start;
}
current_def->width = (INT)LOWORD(GetTabbedTextExtentA(dc,
start, current_def->net_length,
es->tabs_count, es->tabs));
/* FIXME: check here for lines that are too wide even in AUTOHSCROLL (> 32767 ???) */
if ((!(es->style & ES_AUTOHSCROLL)) && (current_def->width > fw)) {
INT next = 0;
INT prev;
do {
prev = next;
next = EDIT_CallWordBreakProc(wnd, es, start - es->text,
prev + 1, current_def->net_length, WB_RIGHT);
current_def->width = (INT)LOWORD(GetTabbedTextExtentA(dc,
start, next, es->tabs_count, es->tabs));
} while (current_def->width <= fw);
if (!prev) {
next = 0;
do {
prev = next;
next++;
current_def->width = (INT)LOWORD(GetTabbedTextExtentA(dc,
start, next, es->tabs_count, es->tabs));
} while (current_def->width <= fw);
if (!prev)
prev = 1;
}
current_def->net_length = prev;
current_def->ending = END_WRAP;
current_def->width = (INT)LOWORD(GetTabbedTextExtentA(dc, start,
current_def->net_length, es->tabs_count, es->tabs));
}
switch (current_def->ending) {
case END_SOFT:
current_def->length = current_def->net_length + 3;
break;
case END_HARD:
current_def->length = current_def->net_length + 2;
break;
case END_WRAP:
case END_0:
current_def->length = current_def->net_length;
break;
}
es->text_width = MAX(es->text_width, current_def->width);
start += current_def->length;
*previous_next = current_def;
previous_next = &current_def->next;
es->line_count++;
} while (current_def->ending != END_0);
if (es->font)
SelectObject(dc, old_font);
ReleaseDC(wnd->hwndSelf, dc);
}
/*********************************************************************
*
* EDIT_CallWordBreakProc
*
* Call appropriate WordBreakProc (internal or external).
*
* Note: The "start" argument should always be an index refering
* to es->text. The actual wordbreak proc might be
* 16 bit, so we can't always pass any 32 bit LPSTR.
* Hence we assume that es->text is the buffer that holds
* the string under examination (we can decide this for ourselves).
*
*/
static INT EDIT_CallWordBreakProc(WND *wnd, EDITSTATE *es, INT start, INT index, INT count, INT action)
{
if (es->word_break_proc16) {
HLOCAL16 hloc16 = EDIT_EM_GetHandle16(wnd, es);
SEGPTR segptr = LocalLock16(hloc16);
INT ret = (INT)Callbacks->CallWordBreakProc(es->word_break_proc16,
segptr + start, index, count, action);
LocalUnlock16(hloc16);
return ret;
}
else if (es->word_break_proc32A)
{
TRACE_(relay)("(wordbrk=%p,str='%s',idx=%d,cnt=%d,act=%d)\n",
es->word_break_proc32A, es->text + start, index,
count, action );
return (INT)es->word_break_proc32A( es->text + start, index,
count, action );
}
else
return EDIT_WordBreakProc(es->text + start, index, count, action);
}
/*********************************************************************
*
* EDIT_CharFromPos
*
* Beware: This is not the function called on EM_CHARFROMPOS
* The position _can_ be outside the formatting / client
* rectangle
* The return value is only the character index
*
*/
static INT EDIT_CharFromPos(WND *wnd, EDITSTATE *es, INT x, INT y, LPBOOL after_wrap)
{
INT index;
HDC dc;
HFONT old_font = 0;
if (es->style & ES_MULTILINE) {
INT line = (y - es->format_rect.top) / es->line_height + es->y_offset;
INT line_index = 0;
LINEDEF *line_def = es->first_line_def;
INT low, high;
while ((line > 0) && line_def->next) {
line_index += line_def->length;
line_def = line_def->next;
line--;
}
x += es->x_offset - es->format_rect.left;
if (x >= line_def->width) {
if (after_wrap)
*after_wrap = (line_def->ending == END_WRAP);
return line_index + line_def->net_length;
}
if (x <= 0) {
if (after_wrap)
*after_wrap = FALSE;
return line_index;
}
dc = GetDC(wnd->hwndSelf);
if (es->font)
old_font = SelectObject(dc, es->font);
low = line_index + 1;
high = line_index + line_def->net_length + 1;
while (low < high - 1)
{
INT mid = (low + high) / 2;
if (LOWORD(GetTabbedTextExtentA(dc, es->text + line_index,mid - line_index, es->tabs_count, es->tabs)) > x) high = mid;
else low = mid;
}
index = low;
if (after_wrap)
*after_wrap = ((index == line_index + line_def->net_length) &&
(line_def->ending == END_WRAP));
} else {
LPSTR text;
SIZE size;
if (after_wrap)
*after_wrap = FALSE;
x -= es->format_rect.left;
if (!x)
return es->x_offset;
text = EDIT_GetPasswordPointer_SL(wnd, es);
dc = GetDC(wnd->hwndSelf);
if (es->font)
old_font = SelectObject(dc, es->font);
if (x < 0)
{
INT low = 0;
INT high = es->x_offset;
while (low < high - 1)
{
INT mid = (low + high) / 2;
GetTextExtentPoint32A( dc, text + mid,
es->x_offset - mid, &size );
if (size.cx > -x) low = mid;
else high = mid;
}
index = low;
}
else
{
INT low = es->x_offset;
INT high = lstrlenA(es->text) + 1;
while (low < high - 1)
{
INT mid = (low + high) / 2;
GetTextExtentPoint32A( dc, text + es->x_offset,
mid - es->x_offset, &size );
if (size.cx > x) high = mid;
else low = mid;
}
index = low;
}
if (es->style & ES_PASSWORD)
HeapFree(es->heap, 0 ,text);
}
if (es->font)
SelectObject(dc, old_font);
ReleaseDC(wnd->hwndSelf, dc);
return index;
}
/*********************************************************************
*
* EDIT_ConfinePoint
*
* adjusts the point to be within the formatting rectangle
* (so CharFromPos returns the nearest _visible_ character)
*
*/
static void EDIT_ConfinePoint(WND *wnd, EDITSTATE *es, LPINT x, LPINT y)
{
*x = MIN(MAX(*x, es->format_rect.left), es->format_rect.right - 1);
*y = MIN(MAX(*y, es->format_rect.top), es->format_rect.bottom - 1);
}
/*********************************************************************
*
* EDIT_GetLineRect
*
* Calculates the bounding rectangle for a line from a starting
* column to an ending column.
*
*/
static void EDIT_GetLineRect(WND *wnd, EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc)
{
INT line_index = EDIT_EM_LineIndex(wnd, es, line);
if (es->style & ES_MULTILINE)
rc->top = es->format_rect.top + (line - es->y_offset) * es->line_height;
else
rc->top = es->format_rect.top;
rc->bottom = rc->top + es->line_height;
rc->left = (scol == 0) ? es->format_rect.left : SLOWORD(EDIT_EM_PosFromChar(wnd, es, line_index + scol, TRUE));
rc->right = (ecol == -1) ? es->format_rect.right : SLOWORD(EDIT_EM_PosFromChar(wnd, es, line_index + ecol, TRUE));
}
/*********************************************************************
*
* EDIT_GetPasswordPointer_SL
*
* note: caller should free the (optionally) allocated buffer
*
*/
static LPSTR EDIT_GetPasswordPointer_SL(WND *wnd, EDITSTATE *es)
{
if (es->style & ES_PASSWORD) {
INT len = lstrlenA(es->text);
LPSTR text = HeapAlloc(es->heap, 0, len + 1);
RtlFillMemory(text, len, es->password_char);
text[len] = '\0';
return text;
} else
return es->text;
}
/*********************************************************************
*
* EDIT_LockBuffer
*
* This acts as a LOCAL_Lock(), but it locks only once. This way
* you can call it whenever you like, without unlocking.
*
*/
static void EDIT_LockBuffer(WND *wnd, EDITSTATE *es)
{
if (!es) {
ERR_(edit)("no EDITSTATE ... please report\n");
return;
}
if (!(es->style & ES_MULTILINE))
return;
if (!es->text) {
if (es->hloc32)
es->text = LocalLock(es->hloc32);
else if (es->hloc16)
es->text = LOCAL_Lock(wnd->hInstance, es->hloc16);
else {
ERR_(edit)("no buffer ... please report\n");
return;
}
}
es->lock_count++;
}
/*********************************************************************
*
* EDIT_SL_InvalidateText
*
* Called from EDIT_InvalidateText().
* Does the job for single-line controls only.
*
*/
static void EDIT_SL_InvalidateText(WND *wnd, EDITSTATE *es, INT start, INT end)
{
RECT line_rect;
RECT rc;
EDIT_GetLineRect(wnd, es, 0, start, end, &line_rect);
if (IntersectRect(&rc, &line_rect, &es->format_rect))
InvalidateRect(wnd->hwndSelf, &rc, FALSE);
}
/*********************************************************************
*
* EDIT_ML_InvalidateText
*
* Called from EDIT_InvalidateText().
* Does the job for multi-line controls only.
*
*/
static void EDIT_ML_InvalidateText(WND *wnd, EDITSTATE *es, INT start, INT end)
{
INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
INT sl = EDIT_EM_LineFromChar(wnd, es, start);
INT el = EDIT_EM_LineFromChar(wnd, es, end);
INT sc;
INT ec;
RECT rc1;
RECT rcWnd;
RECT rcLine;
RECT rcUpdate;
INT l;
if ((el < es->y_offset) || (sl > es->y_offset + vlc))
return;
sc = start - EDIT_EM_LineIndex(wnd, es, sl);
ec = end - EDIT_EM_LineIndex(wnd, es, el);
if (sl < es->y_offset) {
sl = es->y_offset;
sc = 0;
}
if (el > es->y_offset + vlc) {
el = es->y_offset + vlc;
ec = EDIT_EM_LineLength(wnd, es, EDIT_EM_LineIndex(wnd, es, el));
}
GetClientRect(wnd->hwndSelf, &rc1);
IntersectRect(&rcWnd, &rc1, &es->format_rect);
if (sl == el) {
EDIT_GetLineRect(wnd, es, sl, sc, ec, &rcLine);
if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
InvalidateRect(wnd->hwndSelf, &rcUpdate, FALSE);
} else {
EDIT_GetLineRect(wnd, es, sl, sc,
EDIT_EM_LineLength(wnd, es,
EDIT_EM_LineIndex(wnd, es, sl)),
&rcLine);
if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
InvalidateRect(wnd->hwndSelf, &rcUpdate, FALSE);
for (l = sl + 1 ; l < el ; l++) {
EDIT_GetLineRect(wnd, es, l, 0,
EDIT_EM_LineLength(wnd, es,
EDIT_EM_LineIndex(wnd, es, l)),
&rcLine);
if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
InvalidateRect(wnd->hwndSelf, &rcUpdate, FALSE);
}
EDIT_GetLineRect(wnd, es, el, 0, ec, &rcLine);
if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
InvalidateRect(wnd->hwndSelf, &rcUpdate, FALSE);
}
}
/*********************************************************************
*
* EDIT_InvalidateText
*
* Invalidate the text from offset start upto, but not including,
* offset end. Useful for (re)painting the selection.
* Regions outside the linewidth are not invalidated.
* end == -1 means end == TextLength.
* start and end need not be ordered.
*
*/
static void EDIT_InvalidateText(WND *wnd, EDITSTATE *es, INT start, INT end)
{
if (end == start)
return;
if (end == -1)
end = lstrlenA(es->text);
ORDER_INT(start, end);
if (es->style & ES_MULTILINE)
EDIT_ML_InvalidateText(wnd, es, start, end);
else
EDIT_SL_InvalidateText(wnd, es, start, end);
}
/*********************************************************************
*
* EDIT_MakeFit
*
* Try to fit size + 1 bytes in the buffer. Constrain to limits.
*
*/
static BOOL EDIT_MakeFit(WND *wnd, EDITSTATE *es, INT size)
{
HLOCAL hNew32;
HLOCAL16 hNew16;
if (size <= es->buffer_size)
return TRUE;
if (size > es->buffer_limit) {
EDIT_NOTIFY_PARENT(wnd, EN_MAXTEXT, "EN_MAXTEXT");
return FALSE;
}
size = ((size / GROWLENGTH) + 1) * GROWLENGTH;
if (size > es->buffer_limit)
size = es->buffer_limit;
TRACE_(edit)("trying to ReAlloc to %d+1\n", size);
EDIT_UnlockBuffer(wnd, es, TRUE);
if (es->text) {
if ((es->text = HeapReAlloc(es->heap, 0, es->text, size + 1)))
es->buffer_size = MIN(HeapSize(es->heap, 0, es->text) - 1, es->buffer_limit);
else
es->buffer_size = 0;
} else if (es->hloc32) {
if ((hNew32 = LocalReAlloc(es->hloc32, size + 1, 0))) {
TRACE_(edit)("Old 32 bit handle %08x, new handle %08x\n", es->hloc32, hNew32);
es->hloc32 = hNew32;
es->buffer_size = MIN(LocalSize(es->hloc32) - 1, es->buffer_limit);
}
} else if (es->hloc16) {
if ((hNew16 = LOCAL_ReAlloc(wnd->hInstance, es->hloc16, size + 1, LMEM_MOVEABLE))) {
TRACE_(edit)("Old 16 bit handle %08x, new handle %08x\n", es->hloc16, hNew16);
es->hloc16 = hNew16;
es->buffer_size = MIN(LOCAL_Size(wnd->hInstance, es->hloc16) - 1, es->buffer_limit);
}
}
if (es->buffer_size < size) {
EDIT_LockBuffer(wnd, es);
WARN_(edit)("FAILED ! We now have %d+1\n", es->buffer_size);
EDIT_NOTIFY_PARENT(wnd, EN_ERRSPACE, "EN_ERRSPACE");
return FALSE;
} else {
EDIT_LockBuffer(wnd, es);
TRACE_(edit)("We now have %d+1\n", es->buffer_size);
return TRUE;
}
}
/*********************************************************************
*
* EDIT_MakeUndoFit
*
* Try to fit size + 1 bytes in the undo buffer.
*
*/
static BOOL EDIT_MakeUndoFit(WND *wnd, EDITSTATE *es, INT size)
{
if (size <= es->undo_buffer_size)
return TRUE;
size = ((size / GROWLENGTH) + 1) * GROWLENGTH;
TRACE_(edit)("trying to ReAlloc to %d+1\n", size);
if ((es->undo_text = HeapReAlloc(es->heap, 0, es->undo_text, size + 1))) {
es->undo_buffer_size = HeapSize(es->heap, 0, es->undo_text) - 1;
if (es->undo_buffer_size < size) {
WARN_(edit)("FAILED ! We now have %d+1\n", es->undo_buffer_size);
return FALSE;
}
return TRUE;
}
return FALSE;
}
/*********************************************************************
*
* EDIT_MoveBackward
*
*/
static void EDIT_MoveBackward(WND *wnd, EDITSTATE *es, BOOL extend)
{
INT e = es->selection_end;
if (e) {
e--;
if ((es->style & ES_MULTILINE) && e &&
(es->text[e - 1] == '\r') && (es->text[e] == '\n')) {
e--;
if (e && (es->text[e - 1] == '\r'))
e--;
}
}
EDIT_EM_SetSel(wnd, es, extend ? es->selection_start : e, e, FALSE);
EDIT_EM_ScrollCaret(wnd, es);
}
/*********************************************************************
*
* EDIT_MoveDown_ML
*
* Only for multi line controls
* Move the caret one line down, on a column with the nearest
* x coordinate on the screen (might be a different column).
*
*/
static void EDIT_MoveDown_ML(WND *wnd, EDITSTATE *es, BOOL extend)
{
INT s = es->selection_start;
INT e = es->selection_end;
BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
LRESULT pos = EDIT_EM_PosFromChar(wnd, es, e, after_wrap);
INT x = SLOWORD(pos);
INT y = SHIWORD(pos);
e = EDIT_CharFromPos(wnd, es, x, y + es->line_height, &after_wrap);
if (!extend)
s = e;
EDIT_EM_SetSel(wnd, es, s, e, after_wrap);
EDIT_EM_ScrollCaret(wnd, es);
}
/*********************************************************************
*
* EDIT_MoveEnd
*
*/
static void EDIT_MoveEnd(WND *wnd, EDITSTATE *es, BOOL extend)
{
BOOL after_wrap = FALSE;
INT e;
if (es->style & ES_MULTILINE)
e = EDIT_CharFromPos(wnd, es, 0x7fffffff,
HIWORD(EDIT_EM_PosFromChar(wnd, es, es->selection_end, es->flags & EF_AFTER_WRAP)), &after_wrap);
else
e = lstrlenA(es->text);
EDIT_EM_SetSel(wnd, es, extend ? es->selection_start : e, e, after_wrap);
EDIT_EM_ScrollCaret(wnd, es);
}
/*********************************************************************
*
* EDIT_MoveForward
*
*/
static void EDIT_MoveForward(WND *wnd, EDITSTATE *es, BOOL extend)
{
INT e = es->selection_end;
if (es->text[e]) {
e++;
if ((es->style & ES_MULTILINE) && (es->text[e - 1] == '\r')) {
if (es->text[e] == '\n')
e++;
else if ((es->text[e] == '\r') && (es->text[e + 1] == '\n'))
e += 2;
}
}
EDIT_EM_SetSel(wnd, es, extend ? es->selection_start : e, e, FALSE);
EDIT_EM_ScrollCaret(wnd, es);
}
/*********************************************************************
*
* EDIT_MoveHome
*
* Home key: move to beginning of line.
*
*/
static void EDIT_MoveHome(WND *wnd, EDITSTATE *es, BOOL extend)
{
INT e;
if (es->style & ES_MULTILINE)
e = EDIT_CharFromPos(wnd, es, 0x80000000,
HIWORD(EDIT_EM_PosFromChar(wnd, es, es->selection_end, es->flags & EF_AFTER_WRAP)), NULL);
else
e = 0;
EDIT_EM_SetSel(wnd, es, extend ? es->selection_start : e, e, FALSE);
EDIT_EM_ScrollCaret(wnd, es);
}
/*********************************************************************
*
* EDIT_MovePageDown_ML
*
* Only for multi line controls
* Move the caret one page down, on a column with the nearest
* x coordinate on the screen (might be a different column).
*
*/
static void EDIT_MovePageDown_ML(WND *wnd, EDITSTATE *es, BOOL extend)
{
INT s = es->selection_start;
INT e = es->selection_end;
BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
LRESULT pos = EDIT_EM_PosFromChar(wnd, es, e, after_wrap);
INT x = SLOWORD(pos);
INT y = SHIWORD(pos);
e = EDIT_CharFromPos(wnd, es, x,
y + (es->format_rect.bottom - es->format_rect.top),
&after_wrap);
if (!extend)
s = e;
EDIT_EM_SetSel(wnd, es, s, e, after_wrap);
EDIT_EM_ScrollCaret(wnd, es);
}
/*********************************************************************
*
* EDIT_MovePageUp_ML
*
* Only for multi line controls
* Move the caret one page up, on a column with the nearest
* x coordinate on the screen (might be a different column).
*
*/
static void EDIT_MovePageUp_ML(WND *wnd, EDITSTATE *es, BOOL extend)
{
INT s = es->selection_start;
INT e = es->selection_end;
BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
LRESULT pos = EDIT_EM_PosFromChar(wnd, es, e, after_wrap);
INT x = SLOWORD(pos);
INT y = SHIWORD(pos);
e = EDIT_CharFromPos(wnd, es, x,
y - (es->format_rect.bottom - es->format_rect.top),
&after_wrap);
if (!extend)
s = e;
EDIT_EM_SetSel(wnd, es, s, e, after_wrap);
EDIT_EM_ScrollCaret(wnd, es);
}
/*********************************************************************
*
* EDIT_MoveUp_ML
*
* Only for multi line controls
* Move the caret one line up, on a column with the nearest
* x coordinate on the screen (might be a different column).
*
*/
static void EDIT_MoveUp_ML(WND *wnd, EDITSTATE *es, BOOL extend)
{
INT s = es->selection_start;
INT e = es->selection_end;
BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
LRESULT pos = EDIT_EM_PosFromChar(wnd, es, e, after_wrap);
INT x = SLOWORD(pos);
INT y = SHIWORD(pos);
e = EDIT_CharFromPos(wnd, es, x, y - es->line_height, &after_wrap);
if (!extend)
s = e;
EDIT_EM_SetSel(wnd, es, s, e, after_wrap);
EDIT_EM_ScrollCaret(wnd, es);
}
/*********************************************************************
*
* EDIT_MoveWordBackward
*
*/
static void EDIT_MoveWordBackward(WND *wnd, EDITSTATE *es, BOOL extend)
{
INT s = es->selection_start;
INT e = es->selection_end;
INT l;
INT ll;
INT li;
l = EDIT_EM_LineFromChar(wnd, es, e);
ll = EDIT_EM_LineLength(wnd, es, e);
li = EDIT_EM_LineIndex(wnd, es, l);
if (e - li == 0) {
if (l) {
li = EDIT_EM_LineIndex(wnd, es, l - 1);
e = li + EDIT_EM_LineLength(wnd, es, li);
}
} else {
e = li + (INT)EDIT_CallWordBreakProc(wnd, es,
li, e - li, ll, WB_LEFT);
}
if (!extend)
s = e;
EDIT_EM_SetSel(wnd, es, s, e, FALSE);
EDIT_EM_ScrollCaret(wnd, es);
}
/*********************************************************************
*
* EDIT_MoveWordForward
*
*/
static void EDIT_MoveWordForward(WND *wnd, EDITSTATE *es, BOOL extend)
{
INT s = es->selection_start;
INT e = es->selection_end;
INT l;
INT ll;
INT li;
l = EDIT_EM_LineFromChar(wnd, es, e);
ll = EDIT_EM_LineLength(wnd, es, e);
li = EDIT_EM_LineIndex(wnd, es, l);
if (e - li == ll) {
if ((es->style & ES_MULTILINE) && (l != es->line_count - 1))
e = EDIT_EM_LineIndex(wnd, es, l + 1);
} else {
e = li + EDIT_CallWordBreakProc(wnd, es,
li, e - li + 1, ll, WB_RIGHT);
}
if (!extend)
s = e;
EDIT_EM_SetSel(wnd, es, s, e, FALSE);
EDIT_EM_ScrollCaret(wnd, es);
}
/*********************************************************************
*
* EDIT_PaintLine
*
*/
static void EDIT_PaintLine(WND *wnd, EDITSTATE *es, HDC dc, INT line, BOOL rev)
{
INT s = es->selection_start;
INT e = es->selection_end;
INT li;
INT ll;
INT x;
INT y;
LRESULT pos;
if (es->style & ES_MULTILINE) {
INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
if ((line < es->y_offset) || (line > es->y_offset + vlc) || (line >= es->line_count))
return;
} else if (line)
return;
TRACE_(edit)("line=%d\n", line);
pos = EDIT_EM_PosFromChar(wnd, es, EDIT_EM_LineIndex(wnd, es, line), FALSE);
x = SLOWORD(pos);
y = SHIWORD(pos);
li = EDIT_EM_LineIndex(wnd, es, line);
ll = EDIT_EM_LineLength(wnd, es, li);
s = es->selection_start;
e = es->selection_end;
ORDER_INT(s, e);
s = MIN(li + ll, MAX(li, s));
e = MIN(li + ll, MAX(li, e));
if (rev && (s != e) &&
((es->flags & EF_FOCUSED) || (es->style & ES_NOHIDESEL))) {
x += EDIT_PaintText(wnd, es, dc, x, y, line, 0, s - li, FALSE);
x += EDIT_PaintText(wnd, es, dc, x, y, line, s - li, e - s, TRUE);
x += EDIT_PaintText(wnd, es, dc, x, y, line, e - li, li + ll - e, FALSE);
} else
x += EDIT_PaintText(wnd, es, dc, x, y, line, 0, ll, FALSE);
}
/*********************************************************************
*
* EDIT_PaintText
*
*/
static INT EDIT_PaintText(WND *wnd, EDITSTATE *es, HDC dc, INT x, INT y, INT line, INT col, INT count, BOOL rev)
{
COLORREF BkColor;
COLORREF TextColor;
INT ret;
INT li;
SIZE size;
if (!count)
return 0;
BkColor = GetBkColor(dc);
TextColor = GetTextColor(dc);
if (rev) {
SetBkColor(dc, GetSysColor(COLOR_HIGHLIGHT));
SetTextColor(dc, GetSysColor(COLOR_HIGHLIGHTTEXT));
}
li = EDIT_EM_LineIndex(wnd, es, line);
if (es->style & ES_MULTILINE) {
ret = (INT)LOWORD(TabbedTextOutA(dc, x, y, es->text + li + col, count,
es->tabs_count, es->tabs, es->format_rect.left - es->x_offset));
} else {
LPSTR text = EDIT_GetPasswordPointer_SL(wnd, es);
TextOutA(dc, x, y, text + li + col, count);
GetTextExtentPoint32A(dc, text + li + col, count, &size);
ret = size.cx;
if (es->style & ES_PASSWORD)
HeapFree(es->heap, 0, text);
}
if (rev) {
SetBkColor(dc, BkColor);
SetTextColor(dc, TextColor);
}
return ret;
}
/*********************************************************************
*
* EDIT_SetCaretPos
*
*/
static void EDIT_SetCaretPos(WND *wnd, EDITSTATE *es, INT pos,
BOOL after_wrap)
{
LRESULT res = EDIT_EM_PosFromChar(wnd, es, pos, after_wrap);
INT x = SLOWORD(res);
INT y = SHIWORD(res);
if(x < es->format_rect.left)
x = es->format_rect.left;
if(x > es->format_rect.right - 2)
x = es->format_rect.right - 2;
if(y > es->format_rect.bottom)
y = es->format_rect.bottom;
if(y < es->format_rect.top)
y = es->format_rect.top;
SetCaretPos(x, y);
return;
}
/*********************************************************************
*
* EDIT_SetRectNP
*
* note: this is not (exactly) the handler called on EM_SETRECTNP
* it is also used to set the rect of a single line control
*
*/
static void EDIT_SetRectNP(WND *wnd, EDITSTATE *es, LPRECT rc)
{
CopyRect(&es->format_rect, rc);
if (es->style & WS_BORDER) {
INT bw = GetSystemMetrics(SM_CXBORDER) + 1;
if(TWEAK_WineLook == WIN31_LOOK)
bw += 2;
es->format_rect.left += bw;
es->format_rect.top += bw;
es->format_rect.right -= bw;
es->format_rect.bottom -= bw;
}
es->format_rect.left += es->left_margin;
es->format_rect.right -= es->right_margin;
es->format_rect.right = MAX(es->format_rect.right, es->format_rect.left + es->char_width);
if (es->style & ES_MULTILINE)
es->format_rect.bottom = es->format_rect.top +
MAX(1, (es->format_rect.bottom - es->format_rect.top) / es->line_height) * es->line_height;
else
es->format_rect.bottom = es->format_rect.top + es->line_height;
if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL))
EDIT_BuildLineDefs_ML(wnd, es);
}
/*********************************************************************
*
* EDIT_UnlockBuffer
*
*/
static void EDIT_UnlockBuffer(WND *wnd, EDITSTATE *es, BOOL force)
{
if (!es) {
ERR_(edit)("no EDITSTATE ... please report\n");
return;
}
if (!(es->style & ES_MULTILINE))
return;
if (!es->lock_count) {
ERR_(edit)("lock_count == 0 ... please report\n");
return;
}
if (!es->text) {
ERR_(edit)("es->text == 0 ... please report\n");
return;
}
if (force || (es->lock_count == 1)) {
if (es->hloc32) {
LocalUnlock(es->hloc32);
es->text = NULL;
} else if (es->hloc16) {
LOCAL_Unlock(wnd->hInstance, es->hloc16);
es->text = NULL;
}
}
es->lock_count--;
}
/*********************************************************************
*
* EDIT_WordBreakProc
*
* Find the beginning of words.
* Note: unlike the specs for a WordBreakProc, this function only
* allows to be called without linebreaks between s[0] upto
* s[count - 1]. Remember it is only called
* internally, so we can decide this for ourselves.
*
*/
static INT EDIT_WordBreakProc(LPSTR s, INT index, INT count, INT action)
{
INT ret = 0;
TRACE_(edit)("s=%p, index=%u, count=%u, action=%d\n",
s, index, count, action);
switch (action) {
case WB_LEFT:
if (!count)
break;
if (index)
index--;
if (s[index] == ' ') {
while (index && (s[index] == ' '))
index--;
if (index) {
while (index && (s[index] != ' '))
index--;
if (s[index] == ' ')
index++;
}
} else {
while (index && (s[index] != ' '))
index--;
if (s[index] == ' ')
index++;
}
ret = index;
break;
case WB_RIGHT:
if (!count)
break;
if (index)
index--;
if (s[index] == ' ')
while ((index < count) && (s[index] == ' ')) index++;
else {
while (s[index] && (s[index] != ' ') && (index < count))
index++;
while ((s[index] == ' ') && (index < count)) index++;
}
ret = index;
break;
case WB_ISDELIMITER:
ret = (s[index] == ' ');
break;
default:
ERR_(edit)("unknown action code, please report !\n");
break;
}
return ret;
}
/*********************************************************************
*
* EM_CHARFROMPOS
*
* returns line number (not index) in high-order word of result.
* NB : Q137805 is unclear about this. POINT * pointer in lParam apply
* to Richedit, not to the edit control. Original documentation is valid.
* FIXME: do the specs mean to return -1 if outside client area or
* if outside formatting rectangle ???
*
*/
static LRESULT EDIT_EM_CharFromPos(WND *wnd, EDITSTATE *es, INT x, INT y)
{
POINT pt;
RECT rc;
INT index;
pt.x = x;
pt.y = y;
GetClientRect(wnd->hwndSelf, &rc);
if (!PtInRect(&rc, pt))
return -1;
index = EDIT_CharFromPos(wnd, es, x, y, NULL);
return MAKELONG(index, EDIT_EM_LineFromChar(wnd, es, index));
}
/*********************************************************************
*
* EM_FMTLINES
*
* Enable or disable soft breaks.
*/
static BOOL EDIT_EM_FmtLines(WND *wnd, EDITSTATE *es, BOOL add_eol)
{
es->flags &= ~EF_USE_SOFTBRK;
if (add_eol) {
es->flags |= EF_USE_SOFTBRK;
FIXME_(edit)("soft break enabled, not implemented\n");
}
return add_eol;
}
/*********************************************************************
*
* EM_GETHANDLE
*
* Hopefully this won't fire back at us.
* We always start with a fixed buffer in our own heap.
* However, with this message a 32 bit application requests
* a handle to 32 bit moveable local heap memory, where it expects
* to find the text.
* It's a pity that from this moment on we have to use this
* local heap, because applications may rely on the handle
* in the future.
*
* In this function we'll try to switch to local heap.
*
*/
static HLOCAL EDIT_EM_GetHandle(WND *wnd, EDITSTATE *es)
{
HLOCAL newBuf;
LPSTR newText;
INT newSize;
if (!(es->style & ES_MULTILINE))
return 0;
if (es->hloc32)
return es->hloc32;
else if (es->hloc16)
return (HLOCAL)es->hloc16;
if (!(newBuf = LocalAlloc(LMEM_MOVEABLE, lstrlenA(es->text) + 1))) {
ERR_(edit)("could not allocate new 32 bit buffer\n");
return 0;
}
newSize = MIN(LocalSize(newBuf) - 1, es->buffer_limit);
if (!(newText = LocalLock(newBuf))) {
ERR_(edit)("could not lock new 32 bit buffer\n");
LocalFree(newBuf);
return 0;
}
lstrcpyA(newText, es->text);
EDIT_UnlockBuffer(wnd, es, TRUE);
if (es->text)
HeapFree(es->heap, 0, es->text);
es->hloc32 = newBuf;
es->hloc16 = (HLOCAL16)NULL;
es->buffer_size = newSize;
es->text = newText;
EDIT_LockBuffer(wnd, es);
TRACE_(edit)("switched to 32 bit local heap\n");
return es->hloc32;
}
/*********************************************************************
*
* EM_GETHANDLE16
*
* Hopefully this won't fire back at us.
* We always start with a buffer in 32 bit linear memory.
* However, with this message a 16 bit application requests
* a handle of 16 bit local heap memory, where it expects to find
* the text.
* It's a pitty that from this moment on we have to use this
* local heap, because applications may rely on the handle
* in the future.
*
* In this function we'll try to switch to local heap.
*/
static HLOCAL16 EDIT_EM_GetHandle16(WND *wnd, EDITSTATE *es)
{
HLOCAL16 newBuf;
LPSTR newText;
INT newSize;
if (!(es->style & ES_MULTILINE))
return 0;
if (es->hloc16)
return es->hloc16;
if (!LOCAL_HeapSize(wnd->hInstance)) {
if (!LocalInit16(wnd->hInstance, 0,
GlobalSize16(wnd->hInstance))) {
ERR_(edit)("could not initialize local heap\n");
return 0;
}
TRACE_(edit)("local heap initialized\n");
}
if (!(newBuf = LOCAL_Alloc(wnd->hInstance, LMEM_MOVEABLE, lstrlenA(es->text) + 1))) {
ERR_(edit)("could not allocate new 16 bit buffer\n");
return 0;
}
newSize = MIN(LOCAL_Size(wnd->hInstance, newBuf) - 1, es->buffer_limit);
if (!(newText = LOCAL_Lock(wnd->hInstance, newBuf))) {
ERR_(edit)("could not lock new 16 bit buffer\n");
LOCAL_Free(wnd->hInstance, newBuf);
return 0;
}
lstrcpyA(newText, es->text);
EDIT_UnlockBuffer(wnd, es, TRUE);
if (es->text)
HeapFree(es->heap, 0, es->text);
else if (es->hloc32) {
while (LocalFree(es->hloc32)) ;
LocalFree(es->hloc32);
}
es->hloc32 = (HLOCAL)NULL;
es->hloc16 = newBuf;
es->buffer_size = newSize;
es->text = newText;
EDIT_LockBuffer(wnd, es);
TRACE_(edit)("switched to 16 bit buffer\n");
return es->hloc16;
}
/*********************************************************************
*
* EM_GETLINE
*
*/
static INT EDIT_EM_GetLine(WND *wnd, EDITSTATE *es, INT line, LPSTR lpch)
{
LPSTR src;
INT len;
INT i;
if (es->style & ES_MULTILINE) {
if (line >= es->line_count)
return 0;
} else
line = 0;
i = EDIT_EM_LineIndex(wnd, es, line);
src = es->text + i;
len = MIN(*(WORD *)lpch, EDIT_EM_LineLength(wnd, es, i));
for (i = 0 ; i < len ; i++) {
*lpch = *src;
src++;
lpch++;
}
return (LRESULT)len;
}
/*********************************************************************
*
* EM_GETSEL
*
*/
static LRESULT EDIT_EM_GetSel(WND *wnd, EDITSTATE *es, LPUINT start, LPUINT end)
{
UINT s = es->selection_start;
UINT e = es->selection_end;
ORDER_UINT(s, e);
if (start)
*start = s;
if (end)
*end = e;
return MAKELONG(s, e);
}
/*********************************************************************
*
* EM_GETTHUMB
*
* FIXME: is this right ? (or should it be only VSCROLL)
* (and maybe only for edit controls that really have their
* own scrollbars) (and maybe only for multiline controls ?)
* All in all: very poorly documented
*
* FIXME: now it's also broken, because of the new WM_HSCROLL /
* WM_VSCROLL handlers
*
*/
static LRESULT EDIT_EM_GetThumb(WND *wnd, EDITSTATE *es)
{
return MAKELONG(EDIT_WM_VScroll(wnd, es, EM_GETTHUMB16, 0, 0),
EDIT_WM_HScroll(wnd, es, EM_GETTHUMB16, 0, 0));
}
/*********************************************************************
*
* EM_LINEFROMCHAR
*
*/
static INT EDIT_EM_LineFromChar(WND *wnd, EDITSTATE *es, INT index)
{
INT line;
LINEDEF *line_def;
if (!(es->style & ES_MULTILINE))
return 0;
if (index > lstrlenA(es->text))
return es->line_count - 1;
if (index == -1)
index = MIN(es->selection_start, es->selection_end);
line = 0;
line_def = es->first_line_def;
index -= line_def->length;
while ((index >= 0) && line_def->next) {
line++;
line_def = line_def->next;
index -= line_def->length;
}
return line;
}
/*********************************************************************
*
* EM_LINEINDEX
*
*/
static INT EDIT_EM_LineIndex(WND *wnd, EDITSTATE *es, INT line)
{
INT line_index;
LINEDEF *line_def;
if (!(es->style & ES_MULTILINE))
return 0;
if (line >= es->line_count)
return -1;
line_index = 0;
line_def = es->first_line_def;
if (line == -1) {
INT index = es->selection_end - line_def->length;
while ((index >= 0) && line_def->next) {
line_index += line_def->length;
line_def = line_def->next;
index -= line_def->length;
}
} else {
while (line > 0) {
line_index += line_def->length;
line_def = line_def->next;
line--;
}
}
return line_index;
}
/*********************************************************************
*
* EM_LINELENGTH
*
*/
static INT EDIT_EM_LineLength(WND *wnd, EDITSTATE *es, INT index)
{
LINEDEF *line_def;
if (!(es->style & ES_MULTILINE))
return lstrlenA(es->text);
if (index == -1) {
/* FIXME: broken
INT32 sl = EDIT_EM_LineFromChar(wnd, es, es->selection_start);
INT32 el = EDIT_EM_LineFromChar(wnd, es, es->selection_end);
return es->selection_start - es->line_defs[sl].offset +
es->line_defs[el].offset +
es->line_defs[el].length - es->selection_end;
*/
return 0;
}
line_def = es->first_line_def;
index -= line_def->length;
while ((index >= 0) && line_def->next) {
line_def = line_def->next;
index -= line_def->length;
}
return line_def->net_length;
}
/*********************************************************************
*
* EM_LINESCROLL
*
* FIXME: dx is in average character widths
* However, we assume it is in pixels when we use this
* function internally
*
*/
static BOOL EDIT_EM_LineScroll(WND *wnd, EDITSTATE *es, INT dx, INT dy)
{
INT nyoff;
if (!(es->style & ES_MULTILINE))
return FALSE;
if (-dx > es->x_offset)
dx = -es->x_offset;
if (dx > es->text_width - es->x_offset)
dx = es->text_width - es->x_offset;
nyoff = MAX(0, es->y_offset + dy);
if (nyoff >= es->line_count)
nyoff = es->line_count - 1;
dy = (es->y_offset - nyoff) * es->line_height;
if (dx || dy) {
RECT rc1;
RECT rc;
GetClientRect(wnd->hwndSelf, &rc1);
IntersectRect(&rc, &rc1, &es->format_rect);
ScrollWindowEx(wnd->hwndSelf, -dx, dy,
NULL, &rc, (HRGN)NULL, NULL, SW_INVALIDATE);
es->y_offset = nyoff;
es->x_offset += dx;
}
if (dx && !(es->flags & EF_HSCROLL_TRACK))
EDIT_NOTIFY_PARENT(wnd, EN_HSCROLL, "EN_HSCROLL");
if (dy && !(es->flags & EF_VSCROLL_TRACK))
EDIT_NOTIFY_PARENT(wnd, EN_VSCROLL, "EN_VSCROLL");
return TRUE;
}
/*********************************************************************
*
* EM_POSFROMCHAR
*
*/
static LRESULT EDIT_EM_PosFromChar(WND *wnd, EDITSTATE *es, INT index, BOOL after_wrap)
{
INT len = lstrlenA(es->text);
INT l;
INT li;
INT x;
INT y = 0;
HDC dc;
HFONT old_font = 0;
SIZE size;
index = MIN(index, len);
dc = GetDC(wnd->hwndSelf);
if (es->font)
old_font = SelectObject(dc, es->font);
if (es->style & ES_MULTILINE) {
l = EDIT_EM_LineFromChar(wnd, es, index);
y = (l - es->y_offset) * es->line_height;
li = EDIT_EM_LineIndex(wnd, es, l);
if (after_wrap && (li == index) && l) {
INT l2 = l - 1;
LINEDEF *line_def = es->first_line_def;
while (l2) {
line_def = line_def->next;
l2--;
}
if (line_def->ending == END_WRAP) {
l--;
y -= es->line_height;
li = EDIT_EM_LineIndex(wnd, es, l);
}
}
x = LOWORD(GetTabbedTextExtentA(dc, es->text + li, index - li,
es->tabs_count, es->tabs)) - es->x_offset;
} else {
LPSTR text = EDIT_GetPasswordPointer_SL(wnd, es);
if (index < es->x_offset) {
GetTextExtentPoint32A(dc, text + index,
es->x_offset - index, &size);
x = -size.cx;
} else {
GetTextExtentPoint32A(dc, text + es->x_offset,
index - es->x_offset, &size);
x = size.cx;
}
y = 0;
if (es->style & ES_PASSWORD)
HeapFree(es->heap, 0 ,text);
}
x += es->format_rect.left;
y += es->format_rect.top;
if (es->font)
SelectObject(dc, old_font);
ReleaseDC(wnd->hwndSelf, dc);
return MAKELONG((INT16)x, (INT16)y);
}
/*********************************************************************
*
* EM_REPLACESEL
*
* FIXME: handle ES_NUMBER and ES_OEMCONVERT here
*
*/
static void EDIT_EM_ReplaceSel(WND *wnd, EDITSTATE *es, BOOL can_undo, LPCSTR lpsz_replace)
{
INT strl = lstrlenA(lpsz_replace);
INT tl = lstrlenA(es->text);
INT utl;
UINT s;
UINT e;
INT i;
LPSTR p;
s = es->selection_start;
e = es->selection_end;
if ((s == e) && !strl)
return;
ORDER_UINT(s, e);
if (!EDIT_MakeFit(wnd, es, tl - (e - s) + strl))
return;
if (e != s) {
/* there is something to be deleted */
if (can_undo) {
utl = lstrlenA(es->undo_text);
if (!es->undo_insert_count && (*es->undo_text && (s == es->undo_position))) {
/* undo-buffer is extended to the right */
EDIT_MakeUndoFit(wnd, es, utl + e - s);
lstrcpynA(es->undo_text + utl, es->text + s, e - s + 1);
} else if (!es->undo_insert_count && (*es->undo_text && (e == es->undo_position))) {
/* undo-buffer is extended to the left */
EDIT_MakeUndoFit(wnd, es, utl + e - s);
for (p = es->undo_text + utl ; p >= es->undo_text ; p--)
p[e - s] = p[0];
for (i = 0 , p = es->undo_text ; i < e - s ; i++)
p[i] = (es->text + s)[i];
es->undo_position = s;
} else {
/* new undo-buffer */
EDIT_MakeUndoFit(wnd, es, e - s);
lstrcpynA(es->undo_text, es->text + s, e - s + 1);
es->undo_position = s;
}
/* any deletion makes the old insertion-undo invalid */
es->undo_insert_count = 0;
} else
EDIT_EM_EmptyUndoBuffer(wnd, es);
/* now delete */
lstrcpyA(es->text + s, es->text + e);
}
if (strl) {
/* there is an insertion */
if (can_undo) {
if ((s == es->undo_position) ||
((es->undo_insert_count) &&
(s == es->undo_position + es->undo_insert_count)))
/*
* insertion is new and at delete position or
* an extension to either left or right
*/
es->undo_insert_count += strl;
else {
/* new insertion undo */
es->undo_position = s;
es->undo_insert_count = strl;
/* new insertion makes old delete-buffer invalid */
*es->undo_text = '\0';
}
} else
EDIT_EM_EmptyUndoBuffer(wnd, es);
/* now insert */
tl = lstrlenA(es->text);
for (p = es->text + tl ; p >= es->text + s ; p--)
p[strl] = p[0];
for (i = 0 , p = es->text + s ; i < strl ; i++)
p[i] = lpsz_replace[i];
if(es->style & ES_UPPERCASE)
CharUpperBuffA(p, strl);
else if(es->style & ES_LOWERCASE)
CharLowerBuffA(p, strl);
s += strl;
}
/* FIXME: really inefficient */
if (es->style & ES_MULTILINE)
EDIT_BuildLineDefs_ML(wnd, es);
EDIT_EM_SetSel(wnd, es, s, s, FALSE);
es->flags |= EF_MODIFIED;
es->flags |= EF_UPDATE;
EDIT_EM_ScrollCaret(wnd, es);
/* FIXME: really inefficient */
InvalidateRect(wnd->hwndSelf, NULL, TRUE);
}
/*********************************************************************
*
* EM_SCROLL
*
*/
static LRESULT EDIT_EM_Scroll(WND *wnd, EDITSTATE *es, INT action)
{
INT dy;
if (!(es->style & ES_MULTILINE))
return (LRESULT)FALSE;
dy = 0;
switch (action) {
case SB_LINEUP:
if (es->y_offset)
dy = -1;
break;
case SB_LINEDOWN:
if (es->y_offset < es->line_count - 1)
dy = 1;
break;
case SB_PAGEUP:
if (es->y_offset)
dy = -(es->format_rect.bottom - es->format_rect.top) / es->line_height;
break;
case SB_PAGEDOWN:
if (es->y_offset < es->line_count - 1)
dy = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
break;
default:
return (LRESULT)FALSE;
}
if (dy) {
EDIT_EM_LineScroll(wnd, es, 0, dy);
EDIT_NOTIFY_PARENT(wnd, EN_VSCROLL, "EN_VSCROLL");
}
return MAKELONG((INT16)dy, (BOOL16)TRUE);
}
/*********************************************************************
*
* EM_SCROLLCARET
*
*/
static void EDIT_EM_ScrollCaret(WND *wnd, EDITSTATE *es)
{
if (es->style & ES_MULTILINE) {
INT l;
INT li;
INT vlc;
INT ww;
INT cw = es->char_width;
INT x;
INT dy = 0;
INT dx = 0;
l = EDIT_EM_LineFromChar(wnd, es, es->selection_end);
li = EDIT_EM_LineIndex(wnd, es, l);
x = SLOWORD(EDIT_EM_PosFromChar(wnd, es, es->selection_end, es->flags & EF_AFTER_WRAP));
vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
if (l >= es->y_offset + vlc)
dy = l - vlc + 1 - es->y_offset;
if (l < es->y_offset)
dy = l - es->y_offset;
ww = es->format_rect.right - es->format_rect.left;
if (x < es->format_rect.left)
dx = x - es->format_rect.left - ww / HSCROLL_FRACTION / cw * cw;
if (x > es->format_rect.right)
dx = x - es->format_rect.left - (HSCROLL_FRACTION - 1) * ww / HSCROLL_FRACTION / cw * cw;
if (dy || dx)
EDIT_EM_LineScroll(wnd, es, dx, dy);
} else {
INT x;
INT goal;
INT format_width;
if (!(es->style & ES_AUTOHSCROLL))
return;
x = SLOWORD(EDIT_EM_PosFromChar(wnd, es, es->selection_end, FALSE));
format_width = es->format_rect.right - es->format_rect.left;
if (x < es->format_rect.left) {
goal = es->format_rect.left + format_width / HSCROLL_FRACTION;
do {
es->x_offset--;
x = SLOWORD(EDIT_EM_PosFromChar(wnd, es, es->selection_end, FALSE));
} while ((x < goal) && es->x_offset);
/* FIXME: use ScrollWindow() somehow to improve performance */
InvalidateRect(wnd->hwndSelf, NULL, TRUE);
} else if (x > es->format_rect.right) {
INT x_last;
INT len = lstrlenA(es->text);
goal = es->format_rect.right - format_width / HSCROLL_FRACTION;
do {
es->x_offset++;
x = SLOWORD(EDIT_EM_PosFromChar(wnd, es, es->selection_end, FALSE));
x_last = SLOWORD(EDIT_EM_PosFromChar(wnd, es, len, FALSE));
} while ((x > goal) && (x_last > es->format_rect.right));
/* FIXME: use ScrollWindow() somehow to improve performance */
InvalidateRect(wnd->hwndSelf, NULL, TRUE);
}
}
}
/*********************************************************************
*
* EM_SETHANDLE
*
* FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
*
*/
static void EDIT_EM_SetHandle(WND *wnd, EDITSTATE *es, HLOCAL hloc)
{
if (!(es->style & ES_MULTILINE))
return;
if (!hloc) {
WARN_(edit)("called with NULL handle\n");
return;
}
EDIT_UnlockBuffer(wnd, es, TRUE);
/*
* old buffer is freed by caller, unless
* it is still in our own heap. (in that case
* we free it, correcting the buggy caller.)
*/
if (es->text)
HeapFree(es->heap, 0, es->text);
es->hloc16 = (HLOCAL16)NULL;
es->hloc32 = hloc;
es->text = NULL;
es->buffer_size = LocalSize(es->hloc32) - 1;
EDIT_LockBuffer(wnd, es);
es->x_offset = es->y_offset = 0;
es->selection_start = es->selection_end = 0;
EDIT_EM_EmptyUndoBuffer(wnd, es);
es->flags &= ~EF_MODIFIED;
es->flags &= ~EF_UPDATE;
EDIT_BuildLineDefs_ML(wnd, es);
InvalidateRect(wnd->hwndSelf, NULL, TRUE);
EDIT_EM_ScrollCaret(wnd, es);
}
/*********************************************************************
*
* EM_SETHANDLE16
*
* FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
*
*/
static void EDIT_EM_SetHandle16(WND *wnd, EDITSTATE *es, HLOCAL16 hloc)
{
if (!(es->style & ES_MULTILINE))
return;
if (!hloc) {
WARN_(edit)("called with NULL handle\n");
return;
}
EDIT_UnlockBuffer(wnd, es, TRUE);
/*
* old buffer is freed by caller, unless
* it is still in our own heap. (in that case
* we free it, correcting the buggy caller.)
*/
if (es->text)
HeapFree(es->heap, 0, es->text);
es->hloc16 = hloc;
es->hloc32 = (HLOCAL)NULL;
es->text = NULL;
es->buffer_size = LOCAL_Size(wnd->hInstance, es->hloc16) - 1;
EDIT_LockBuffer(wnd, es);
es->x_offset = es->y_offset = 0;
es->selection_start = es->selection_end = 0;
EDIT_EM_EmptyUndoBuffer(wnd, es);
es->flags &= ~EF_MODIFIED;
es->flags &= ~EF_UPDATE;
EDIT_BuildLineDefs_ML(wnd, es);
InvalidateRect(wnd->hwndSelf, NULL, TRUE);
EDIT_EM_ScrollCaret(wnd, es);
}
/*********************************************************************
*
* EM_SETLIMITTEXT
*
* FIXME: in WinNT maxsize is 0x7FFFFFFF / 0xFFFFFFFF
* However, the windows version is not complied to yet in all of edit.c
*
*/
static void EDIT_EM_SetLimitText(WND *wnd, EDITSTATE *es, INT limit)
{
if (es->style & ES_MULTILINE) {
if (limit)
es->buffer_limit = MIN(limit, BUFLIMIT_MULTI);
else
es->buffer_limit = BUFLIMIT_MULTI;
} else {
if (limit)
es->buffer_limit = MIN(limit, BUFLIMIT_SINGLE);
else
es->buffer_limit = BUFLIMIT_SINGLE;
}
}
/*********************************************************************
*
* EM_SETMARGINS
*
* EC_USEFONTINFO is used as a left or right value i.e. lParam and not as an
* action wParam despite what the docs say. EC_USEFONTINFO means one third
* of the char's width, according to the new docs.
*
*/
static void EDIT_EM_SetMargins(WND *wnd, EDITSTATE *es, INT action,
INT left, INT right)
{
if (action & EC_LEFTMARGIN) {
if (left != EC_USEFONTINFO)
es->left_margin = left;
else
es->left_margin = es->char_width / 3;
}
if (action & EC_RIGHTMARGIN) {
if (right != EC_USEFONTINFO)
es->right_margin = right;
else
es->right_margin = es->char_width / 3;
}
TRACE_(edit)("left=%d, right=%d\n", es->left_margin, es->right_margin);
}
/*********************************************************************
*
* EM_SETPASSWORDCHAR
*
*/
static void EDIT_EM_SetPasswordChar(WND *wnd, EDITSTATE *es, CHAR c)
{
if (es->style & ES_MULTILINE)
return;
if (es->password_char == c)
return;
es->password_char = c;
if (c) {
wnd->dwStyle |= ES_PASSWORD;
es->style |= ES_PASSWORD;
} else {
wnd->dwStyle &= ~ES_PASSWORD;
es->style &= ~ES_PASSWORD;
}
InvalidateRect(wnd->hwndSelf, NULL, TRUE);
}
/*********************************************************************
*
* EDIT_EM_SetSel
*
* note: unlike the specs say: the order of start and end
* _is_ preserved in Windows. (i.e. start can be > end)
* In other words: this handler is OK
*
*/
static void EDIT_EM_SetSel(WND *wnd, EDITSTATE *es, UINT start, UINT end, BOOL after_wrap)
{
UINT old_start = es->selection_start;
UINT old_end = es->selection_end;
UINT len = lstrlenA(es->text);
if (start == -1) {
start = es->selection_end;
end = es->selection_end;
} else {
start = MIN(start, len);
end = MIN(end, len);
}
es->selection_start = start;
es->selection_end = end;
if (after_wrap)
es->flags |= EF_AFTER_WRAP;
else
es->flags &= ~EF_AFTER_WRAP;
if (es->flags & EF_FOCUSED)
EDIT_SetCaretPos(wnd, es, end, after_wrap);
/* This is little bit more efficient than before, not sure if it can be improved. FIXME? */
ORDER_UINT(start, end);
ORDER_UINT(end, old_end);
ORDER_UINT(start, old_start);
ORDER_UINT(old_start, old_end);
if (end != old_start)
{
/*
* One can also do
* ORDER_UINT32(end, old_start);
* EDIT_InvalidateText(wnd, es, start, end);
* EDIT_InvalidateText(wnd, es, old_start, old_end);
* in place of the following if statement.
*/
if (old_start > end )
{
EDIT_InvalidateText(wnd, es, start, end);
EDIT_InvalidateText(wnd, es, old_start, old_end);
}
else
{
EDIT_InvalidateText(wnd, es, start, old_start);
EDIT_InvalidateText(wnd, es, end, old_end);
}
}
else EDIT_InvalidateText(wnd, es, start, old_end);
}
/*********************************************************************
*
* EM_SETTABSTOPS
*
*/
static BOOL EDIT_EM_SetTabStops(WND *wnd, EDITSTATE *es, INT count, LPINT tabs)
{
if (!(es->style & ES_MULTILINE))
return FALSE;
if (es->tabs)
HeapFree(es->heap, 0, es->tabs);
es->tabs_count = count;
if (!count)
es->tabs = NULL;
else {
es->tabs = HeapAlloc(es->heap, 0, count * sizeof(INT));
memcpy(es->tabs, tabs, count * sizeof(INT));
}
return TRUE;
}
/*********************************************************************
*
* EM_SETTABSTOPS16
*
*/
static BOOL EDIT_EM_SetTabStops16(WND *wnd, EDITSTATE *es, INT count, LPINT16 tabs)
{
if (!(es->style & ES_MULTILINE))
return FALSE;
if (es->tabs)
HeapFree(es->heap, 0, es->tabs);
es->tabs_count = count;
if (!count)
es->tabs = NULL;
else {
INT i;
es->tabs = HeapAlloc(es->heap, 0, count * sizeof(INT));
for (i = 0 ; i < count ; i++)
es->tabs[i] = *tabs++;
}
return TRUE;
}
/*********************************************************************
*
* EM_SETWORDBREAKPROC
*
*/
static void EDIT_EM_SetWordBreakProc(WND *wnd, EDITSTATE *es, EDITWORDBREAKPROCA wbp)
{
if (es->word_break_proc32A == wbp)
return;
es->word_break_proc32A = wbp;
es->word_break_proc16 = NULL;
if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
EDIT_BuildLineDefs_ML(wnd, es);
InvalidateRect(wnd->hwndSelf, NULL, TRUE);
}
}
/*********************************************************************
*
* EM_SETWORDBREAKPROC16
*
*/
static void EDIT_EM_SetWordBreakProc16(WND *wnd, EDITSTATE *es, EDITWORDBREAKPROC16 wbp)
{
if (es->word_break_proc16 == wbp)
return;
es->word_break_proc32A = NULL;
es->word_break_proc16 = wbp;
if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
EDIT_BuildLineDefs_ML(wnd, es);
InvalidateRect(wnd->hwndSelf, NULL, TRUE);
}
}
/*********************************************************************
*
* EM_UNDO / WM_UNDO
*
*/
static BOOL EDIT_EM_Undo(WND *wnd, EDITSTATE *es)
{
INT ulength = lstrlenA(es->undo_text);
LPSTR utext = HeapAlloc(es->heap, 0, ulength + 1);
lstrcpyA(utext, es->undo_text);
TRACE_(edit)("before UNDO:insertion length = %d, deletion buffer = %s\n",
es->undo_insert_count, utext);
EDIT_EM_SetSel(wnd, es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
EDIT_EM_EmptyUndoBuffer(wnd, es);
EDIT_EM_ReplaceSel(wnd, es, TRUE, utext);
EDIT_EM_SetSel(wnd, es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
HeapFree(es->heap, 0, utext);
TRACE_(edit)("after UNDO:insertion length = %d, deletion buffer = %s\n",
es->undo_insert_count, es->undo_text);
return TRUE;
}
/*********************************************************************
*
* WM_CHAR
*
*/
static void EDIT_WM_Char(WND *wnd, EDITSTATE *es, CHAR c, DWORD key_data)
{
switch (c) {
case '\r':
case '\n':
if (es->style & ES_MULTILINE) {
if (es->style & ES_READONLY) {
EDIT_MoveHome(wnd, es, FALSE);
EDIT_MoveDown_ML(wnd, es, FALSE);
} else
EDIT_EM_ReplaceSel(wnd, es, TRUE, "\r\n");
}
break;
case '\t':
if ((es->style & ES_MULTILINE) && !(es->style & ES_READONLY))
EDIT_EM_ReplaceSel(wnd, es, TRUE, "\t");
break;
default:
if (!(es->style & ES_READONLY) && ((BYTE)c >= ' ') && (c != 127)) {
char str[2];
str[0] = c;
str[1] = '\0';
EDIT_EM_ReplaceSel(wnd, es, TRUE, str);
}
break;
}
}
/*********************************************************************
*
* WM_COMMAND
*
*/
static void EDIT_WM_Command(WND *wnd, EDITSTATE *es, INT code, INT id, HWND control)
{
if (code || control)
return;
switch (id) {
case EM_UNDO:
EDIT_EM_Undo(wnd, es);
break;
case WM_CUT:
EDIT_WM_Cut(wnd, es);
break;
case WM_COPY:
EDIT_WM_Copy(wnd, es);
break;
case WM_PASTE:
EDIT_WM_Paste(wnd, es);
break;
case WM_CLEAR:
EDIT_WM_Clear(wnd, es);
break;
case EM_SETSEL:
EDIT_EM_SetSel(wnd, es, 0, -1, FALSE);
EDIT_EM_ScrollCaret(wnd, es);
break;
default:
ERR_(edit)("unknown menu item, please report\n");
break;
}
}
/*********************************************************************
*
* WM_CONTEXTMENU
*
* Note: the resource files resource/sysres_??.rc cannot define a
* single popup menu. Hence we use a (dummy) menubar
* containing the single popup menu as its first item.
*
* FIXME: the message identifiers have been chosen arbitrarily,
* hence we use MF_BYPOSITION.
* We might as well use the "real" values (anybody knows ?)
* The menu definition is in resources/sysres_??.rc.
* Once these are OK, we better use MF_BYCOMMAND here
* (as we do in EDIT_WM_Command()).
*
*/
static void EDIT_WM_ContextMenu(WND *wnd, EDITSTATE *es, HWND hwnd, INT x, INT y)
{
HMENU menu = LoadMenuA(GetModuleHandleA("USER32"), "EDITMENU");
HMENU popup = GetSubMenu(menu, 0);
UINT start = es->selection_start;
UINT end = es->selection_end;
ORDER_UINT(start, end);
/* undo */
EnableMenuItem(popup, 0, MF_BYPOSITION | (EDIT_EM_CanUndo(wnd, es) ? MF_ENABLED : MF_GRAYED));
/* cut */
EnableMenuItem(popup, 2, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) ? MF_ENABLED : MF_GRAYED));
/* copy */
EnableMenuItem(popup, 3, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) ? MF_ENABLED : MF_GRAYED));
/* paste */
EnableMenuItem(popup, 4, MF_BYPOSITION | (IsClipboardFormatAvailable(CF_TEXT) ? MF_ENABLED : MF_GRAYED));
/* delete */
EnableMenuItem(popup, 5, MF_BYPOSITION | ((end - start) ? MF_ENABLED : MF_GRAYED));
/* select all */
EnableMenuItem(popup, 7, MF_BYPOSITION | (start || (end != lstrlenA(es->text)) ? MF_ENABLED : MF_GRAYED));
TrackPopupMenu(popup, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, wnd->hwndSelf, NULL);
DestroyMenu(menu);
}
/*********************************************************************
*
* WM_COPY
*
*/
static void EDIT_WM_Copy(WND *wnd, EDITSTATE *es)
{
INT s = es->selection_start;
INT e = es->selection_end;
HGLOBAL hdst;
LPSTR dst;
if (e == s)
return;
ORDER_INT(s, e);
hdst = GlobalAlloc(GMEM_MOVEABLE, (DWORD)(e - s + 1));
dst = GlobalLock(hdst);
lstrcpynA(dst, es->text + s, e - s + 1);
GlobalUnlock(hdst);
OpenClipboard(wnd->hwndSelf);
EmptyClipboard();
SetClipboardData(CF_TEXT, hdst);
CloseClipboard();
}
/*********************************************************************
*
* WM_CREATE
*
*/
static LRESULT EDIT_WM_Create(WND *wnd, EDITSTATE *es, LPCREATESTRUCTA cs)
{
/*
* To initialize some final structure members, we call some helper
* functions. However, since the EDITSTATE is not consistent (i.e.
* not fully initialized), we should be very careful which
* functions can be called, and in what order.
*/
EDIT_WM_SetFont(wnd, es, 0, FALSE);
EDIT_EM_EmptyUndoBuffer(wnd, es);
if (cs->lpszName && *(cs->lpszName) != '\0') {
EDIT_EM_ReplaceSel(wnd, es, FALSE, cs->lpszName);
/* if we insert text to the editline, the text scrolls out
* of the window, as the caret is placed after the insert
* pos normally; thus we reset es->selection... to 0 and
* update caret
*/
es->selection_start = es->selection_end = 0;
EDIT_EM_ScrollCaret(wnd, es);
}
return 0;
}
/*********************************************************************
*
* WM_DESTROY
*
*/
static void EDIT_WM_Destroy(WND *wnd, EDITSTATE *es)
{
if (es->hloc32) {
while (LocalUnlock(es->hloc32)) ;
LocalFree(es->hloc32);
}
if (es->hloc16) {
while (LOCAL_Unlock(wnd->hInstance, es->hloc16)) ;
LOCAL_Free(wnd->hInstance, es->hloc16);
}
HeapDestroy(es->heap);
HeapFree(GetProcessHeap(), 0, es);
*(EDITSTATE **)wnd->wExtra = NULL;
}
/*********************************************************************
*
* WM_ERASEBKGND
*
*/
static LRESULT EDIT_WM_EraseBkGnd(WND *wnd, EDITSTATE *es, HDC dc)
{
HBRUSH brush;
RECT rc;
if (!IsWindowEnabled(wnd->hwndSelf) || (es->style & ES_READONLY))
brush = (HBRUSH)EDIT_SEND_CTLCOLORSTATIC(wnd, dc);
else
brush = (HBRUSH)EDIT_SEND_CTLCOLOR(wnd, dc);
if (!brush)
brush = (HBRUSH)GetStockObject(WHITE_BRUSH);
GetClientRect(wnd->hwndSelf, &rc);
IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
GetClipBox(dc, &rc);
/*
* FIXME: specs say that we should UnrealizeObject() the brush,
* but the specs of UnrealizeObject() say that we shouldn't
* unrealize a stock object. The default brush that
* DefWndProc() returns is ... a stock object.
*/
FillRect(dc, &rc, brush);
return -1;
}
/*********************************************************************
*
* WM_GETTEXT
*
*/
static INT EDIT_WM_GetText(WND *wnd, EDITSTATE *es, INT count, LPSTR text)
{
INT len = lstrlenA(es->text);
if (count > len) {
lstrcpyA(text, es->text);
return len;
} else
return -1;
}
/*********************************************************************
*
* EDIT_HScroll_Hack
*
* 16 bit notepad needs this. Actually it is not _our_ hack,
* it is notepad's. Notepad is sending us scrollbar messages with
* undocumented parameters without us even having a scrollbar ... !?!?
*
*/
static LRESULT EDIT_HScroll_Hack(WND *wnd, EDITSTATE *es, INT action, INT pos, HWND scroll_bar)
{
INT dx = 0;
INT fw = es->format_rect.right - es->format_rect.left;
LRESULT ret = 0;
if (!(es->flags & EF_HSCROLL_HACK)) {
ERR_(edit)("hacked WM_HSCROLL handler invoked\n");
ERR_(edit)(" if you are _not_ running 16 bit notepad, please report\n");
ERR_(edit)(" (this message is only displayed once per edit control)\n");
es->flags |= EF_HSCROLL_HACK;
}
switch (action) {
case SB_LINELEFT:
if (es->x_offset)
dx = -es->char_width;
break;
case SB_LINERIGHT:
if (es->x_offset < es->text_width)
dx = es->char_width;
break;
case SB_PAGELEFT:
if (es->x_offset)
dx = -fw / HSCROLL_FRACTION / es->char_width * es->char_width;
break;
case SB_PAGERIGHT:
if (es->x_offset < es->text_width)
dx = fw / HSCROLL_FRACTION / es->char_width * es->char_width;
break;
case SB_LEFT:
if (es->x_offset)
dx = -es->x_offset;
break;
case SB_RIGHT:
if (es->x_offset < es->text_width)
dx = es->text_width - es->x_offset;
break;
case SB_THUMBTRACK:
es->flags |= EF_HSCROLL_TRACK;
dx = pos * es->text_width / 100 - es->x_offset;
break;
case SB_THUMBPOSITION:
es->flags &= ~EF_HSCROLL_TRACK;
if (!(dx = pos * es->text_width / 100 - es->x_offset))
EDIT_NOTIFY_PARENT(wnd, EN_HSCROLL, "EN_HSCROLL");
break;
case SB_ENDSCROLL:
break;
/*
* FIXME : the next two are undocumented !
* Are we doing the right thing ?
* At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
* although it's also a regular control message.
*/
case EM_GETTHUMB16:
ret = es->text_width ? es->x_offset * 100 / es->text_width : 0;
break;
case EM_LINESCROLL16:
dx = pos;
break;
default:
ERR_(edit)("undocumented (hacked) WM_HSCROLL parameter, please report\n");
return 0;
}
if (dx)
EDIT_EM_LineScroll(wnd, es, dx, 0);
return ret;
}
/*********************************************************************
*
* WM_HSCROLL
*
*/
static LRESULT EDIT_WM_HScroll(WND *wnd, EDITSTATE *es, INT action, INT pos, HWND scroll_bar)
{
INT dx;
INT fw;
if (!(es->style & ES_MULTILINE))
return 0;
if (!(es->style & ES_AUTOHSCROLL))
return 0;
if (!(es->style & WS_HSCROLL))
return EDIT_HScroll_Hack(wnd, es, action, pos, scroll_bar);
dx = 0;
fw = es->format_rect.right - es->format_rect.left;
switch (action) {
case SB_LINELEFT:
if (es->x_offset)
dx = -es->char_width;
break;
case SB_LINERIGHT:
if (es->x_offset < es->text_width)
dx = es->char_width;
break;
case SB_PAGELEFT:
if (es->x_offset)
dx = -fw / HSCROLL_FRACTION / es->char_width * es->char_width;
break;
case SB_PAGERIGHT:
if (es->x_offset < es->text_width)
dx = fw / HSCROLL_FRACTION / es->char_width * es->char_width;
break;
case SB_LEFT:
if (es->x_offset)
dx = -es->x_offset;
break;
case SB_RIGHT:
if (es->x_offset < es->text_width)
dx = es->text_width - es->x_offset;
break;
case SB_THUMBTRACK:
es->flags |= EF_HSCROLL_TRACK;
dx = pos - es->x_offset;
break;
case SB_THUMBPOSITION:
es->flags &= ~EF_HSCROLL_TRACK;
if (!(dx = pos - es->x_offset)) {
SetScrollPos(wnd->hwndSelf, SB_HORZ, pos, TRUE);
EDIT_NOTIFY_PARENT(wnd, EN_HSCROLL, "EN_HSCROLL");
}
break;
case SB_ENDSCROLL:
break;
default:
ERR_(edit)("undocumented WM_HSCROLL parameter, please report\n");
return 0;
}
if (dx)
EDIT_EM_LineScroll(wnd, es, dx, 0);
return 0;
}
/*********************************************************************
*
* EDIT_CheckCombo
*
*/
static BOOL EDIT_CheckCombo(WND *wnd, UINT msg, INT key, DWORD key_data)
{
HWND hLBox;
if (WIDGETS_IsControl(wnd->parent, BIC32_COMBO) &&
(hLBox = COMBO_GetLBWindow(wnd->parent))) {
HWND hCombo = wnd->parent->hwndSelf;
BOOL bUIFlip = TRUE;
TRACE_(combo)("[%04x]: handling msg %04x (%04x)\n",
wnd->hwndSelf, (UINT16)msg, (UINT16)key);
switch (msg) {
case WM_KEYDOWN: /* Handle F4 and arrow keys */
if (key != VK_F4) {
bUIFlip = (BOOL)SendMessageA(hCombo, CB_GETEXTENDEDUI, 0, 0);
if (SendMessageA(hCombo, CB_GETDROPPEDSTATE, 0, 0))
bUIFlip = FALSE;
}
if (!bUIFlip)
SendMessageA(hLBox, WM_KEYDOWN, (WPARAM)key, 0);
else {
/* make sure ComboLBox pops up */
SendMessageA(hCombo, CB_SETEXTENDEDUI, 0, 0);
SendMessageA(hLBox, WM_KEYDOWN, VK_F4, 0);
SendMessageA(hCombo, CB_SETEXTENDEDUI, 1, 0);
}
break;
case WM_SYSKEYDOWN: /* Handle Alt+up/down arrows */
bUIFlip = (BOOL)SendMessageA(hCombo, CB_GETEXTENDEDUI, 0, 0);
if (bUIFlip) {
bUIFlip = (BOOL)SendMessageA(hCombo, CB_GETDROPPEDSTATE, 0, 0);
SendMessageA(hCombo, CB_SHOWDROPDOWN, (bUIFlip) ? FALSE : TRUE, 0);
} else
SendMessageA(hLBox, WM_KEYDOWN, VK_F4, 0);
break;
}
return TRUE;
}
return FALSE;
}
/*********************************************************************
*
* WM_KEYDOWN
*
* Handling of special keys that don't produce a WM_CHAR
* (i.e. non-printable keys) & Backspace & Delete
*
*/
static LRESULT EDIT_WM_KeyDown(WND *wnd, EDITSTATE *es, INT key, DWORD key_data)
{
BOOL shift;
BOOL control;
if (GetKeyState(VK_MENU) & 0x8000)
return 0;
shift = GetKeyState(VK_SHIFT) & 0x8000;
control = GetKeyState(VK_CONTROL) & 0x8000;
switch (key) {
case VK_F4:
case VK_UP:
if (EDIT_CheckCombo(wnd, WM_KEYDOWN, key, key_data))
break;
if (key == VK_F4)
break;
/* fall through */
case VK_LEFT:
if ((es->style & ES_MULTILINE) && (key == VK_UP))
EDIT_MoveUp_ML(wnd, es, shift);
else
if (control)
EDIT_MoveWordBackward(wnd, es, shift);
else
EDIT_MoveBackward(wnd, es, shift);
break;
case VK_DOWN:
if (EDIT_CheckCombo(wnd, WM_KEYDOWN, key, key_data))
break;
/* fall through */
case VK_RIGHT:
if ((es->style & ES_MULTILINE) && (key == VK_DOWN))
EDIT_MoveDown_ML(wnd, es, shift);
else if (control)
EDIT_MoveWordForward(wnd, es, shift);
else
EDIT_MoveForward(wnd, es, shift);
break;
case VK_HOME:
EDIT_MoveHome(wnd, es, shift);
break;
case VK_END:
EDIT_MoveEnd(wnd, es, shift);
break;
case VK_PRIOR:
if (es->style & ES_MULTILINE)
EDIT_MovePageUp_ML(wnd, es, shift);
break;
case VK_NEXT:
if (es->style & ES_MULTILINE)
EDIT_MovePageDown_ML(wnd, es, shift);
break;
case VK_BACK:
if (!(es->style & ES_READONLY) && !control) {
if (es->selection_start != es->selection_end)
EDIT_WM_Clear(wnd, es);
else {
/* delete character left of caret */
EDIT_EM_SetSel(wnd, es, -1, 0, FALSE);
EDIT_MoveBackward(wnd, es, TRUE);
EDIT_WM_Clear(wnd, es);
}
}
break;
case VK_DELETE:
if (!(es->style & ES_READONLY) && !(shift && control)) {
if (es->selection_start != es->selection_end) {
if (shift)
EDIT_WM_Cut(wnd, es);
else
EDIT_WM_Clear(wnd, es);
} else {
if (shift) {
/* delete character left of caret */
EDIT_EM_SetSel(wnd, es, -1, 0, FALSE);
EDIT_MoveBackward(wnd, es, TRUE);
EDIT_WM_Clear(wnd, es);
} else if (control) {
/* delete to end of line */
EDIT_EM_SetSel(wnd, es, -1, 0, FALSE);
EDIT_MoveEnd(wnd, es, TRUE);
EDIT_WM_Clear(wnd, es);
} else {
/* delete character right of caret */
EDIT_EM_SetSel(wnd, es, -1, 0, FALSE);
EDIT_MoveForward(wnd, es, TRUE);
EDIT_WM_Clear(wnd, es);
}
}
}
break;
case VK_INSERT:
if (shift) {
if (!(es->style & ES_READONLY))
EDIT_WM_Paste(wnd, es);
} else if (control)
EDIT_WM_Copy(wnd, es);
break;
}
return 0;
}
/*********************************************************************
*
* WM_KILLFOCUS
*
*/
static LRESULT EDIT_WM_KillFocus(WND *wnd, EDITSTATE *es, HWND window_getting_focus)
{
es->flags &= ~EF_FOCUSED;
DestroyCaret();
if(!(es->style & ES_NOHIDESEL))
EDIT_InvalidateText(wnd, es, es->selection_start, es->selection_end);
EDIT_NOTIFY_PARENT(wnd, EN_KILLFOCUS, "EN_KILLFOCUS");
return 0;
}
/*********************************************************************
*
* WM_LBUTTONDBLCLK
*
* The caret position has been set on the WM_LBUTTONDOWN message
*
*/
static LRESULT EDIT_WM_LButtonDblClk(WND *wnd, EDITSTATE *es, DWORD keys, INT x, INT y)
{
INT s;
INT e = es->selection_end;
INT l;
INT li;
INT ll;
if (!(es->flags & EF_FOCUSED))
return 0;
l = EDIT_EM_LineFromChar(wnd, es, e);
li = EDIT_EM_LineIndex(wnd, es, l);
ll = EDIT_EM_LineLength(wnd, es, e);
s = li + EDIT_CallWordBreakProc (wnd, es, li, e - li, ll, WB_LEFT);
e = li + EDIT_CallWordBreakProc(wnd, es, li, e - li, ll, WB_RIGHT);
EDIT_EM_SetSel(wnd, es, s, e, FALSE);
EDIT_EM_ScrollCaret(wnd, es);
return 0;
}
/*********************************************************************
*
* WM_LBUTTONDOWN
*
*/
static LRESULT EDIT_WM_LButtonDown(WND *wnd, EDITSTATE *es, DWORD keys, INT x, INT y)
{
INT e;
BOOL after_wrap;
if (!(es->flags & EF_FOCUSED))
return 0;
es->bCaptureState = TRUE;
SetCapture(wnd->hwndSelf);
EDIT_ConfinePoint(wnd, es, &x, &y);
e = EDIT_CharFromPos(wnd, es, x, y, &after_wrap);
EDIT_EM_SetSel(wnd, es, (keys & MK_SHIFT) ? es->selection_start : e, e, after_wrap);
EDIT_EM_ScrollCaret(wnd, es);
es->region_posx = es->region_posy = 0;
SetTimer(wnd->hwndSelf, 0, 100, NULL);
return 0;
}
/*********************************************************************
*
* WM_LBUTTONUP
*
*/
static LRESULT EDIT_WM_LButtonUp(WND *wnd, EDITSTATE *es, DWORD keys, INT x, INT y)
{
if (es->bCaptureState && GetCapture() == wnd->hwndSelf) {
KillTimer(wnd->hwndSelf, 0);
ReleaseCapture();
}
es->bCaptureState = FALSE;
return 0;
}
/*********************************************************************
*
* WM_MOUSEMOVE
*
*/
static LRESULT EDIT_WM_MouseMove(WND *wnd, EDITSTATE *es, DWORD keys, INT x, INT y)
{
INT e;
BOOL after_wrap;
INT prex, prey;
if (GetCapture() != wnd->hwndSelf)
return 0;
/*
* FIXME: gotta do some scrolling if outside client
* area. Maybe reset the timer ?
*/
prex = x; prey = y;
EDIT_ConfinePoint(wnd, es, &x, &y);
es->region_posx = (prex < x) ? -1 : ((prex > x) ? 1 : 0);
es->region_posy = (prey < y) ? -1 : ((prey > y) ? 1 : 0);
e = EDIT_CharFromPos(wnd, es, x, y, &after_wrap);
EDIT_EM_SetSel(wnd, es, es->selection_start, e, after_wrap);
return 0;
}
/*********************************************************************
*
* WM_NCCREATE
*
*/
static LRESULT EDIT_WM_NCCreate(WND *wnd, LPCREATESTRUCTA cs)
{
EDITSTATE *es;
if (!(es = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*es))))
return FALSE;
*(EDITSTATE **)wnd->wExtra = es;
/*
* Note: since the EDITSTATE has not been fully initialized yet,
* we can't use any API calls that may send
* WM_XXX messages before WM_NCCREATE is completed.
*/
if (!(es->heap = HeapCreate(0, 0x10000, 0)))
return FALSE;
es->style = cs->style;
/*
* In Win95 look and feel, the WS_BORDER style is replaced by the
* WS_EX_CLIENTEDGE style for the edit control. This gives the edit
* control a non client area.
*/
if (TWEAK_WineLook != WIN31_LOOK)
{
if (es->style & WS_BORDER)
{
es->style &= ~WS_BORDER;
wnd->dwStyle &= ~WS_BORDER;
wnd->dwExStyle |= WS_EX_CLIENTEDGE;
}
}
else
{
if ((es->style & WS_BORDER) && !(es->style & WS_DLGFRAME))
wnd->dwStyle &= ~WS_BORDER;
}
if (es->style & ES_MULTILINE) {
es->buffer_size = BUFSTART_MULTI;
es->buffer_limit = BUFLIMIT_MULTI;
if (es->style & WS_VSCROLL)
es->style |= ES_AUTOVSCROLL;
if (es->style & WS_HSCROLL)
es->style |= ES_AUTOHSCROLL;
es->style &= ~ES_PASSWORD;
if ((es->style & ES_CENTER) || (es->style & ES_RIGHT)) {
if (es->style & ES_RIGHT)
es->style &= ~ES_CENTER;
es->style &= ~WS_HSCROLL;
es->style &= ~ES_AUTOHSCROLL;
}
/* FIXME: for now, all multi line controls are AUTOVSCROLL */
es->style |= ES_AUTOVSCROLL;
} else {
es->buffer_size = BUFSTART_SINGLE;
es->buffer_limit = BUFLIMIT_SINGLE;
es->style &= ~ES_CENTER;
es->style &= ~ES_RIGHT;
es->style &= ~WS_HSCROLL;
es->style &= ~WS_VSCROLL;
es->style &= ~ES_AUTOVSCROLL;
es->style &= ~ES_WANTRETURN;
if (es->style & ES_UPPERCASE) {
es->style &= ~ES_LOWERCASE;
es->style &= ~ES_NUMBER;
} else if (es->style & ES_LOWERCASE)
es->style &= ~ES_NUMBER;
if (es->style & ES_PASSWORD)
es->password_char = '*';
/* FIXME: for now, all single line controls are AUTOHSCROLL */
es->style |= ES_AUTOHSCROLL;
}
if (!(es->text = HeapAlloc(es->heap, 0, es->buffer_size + 1)))
return FALSE;
es->buffer_size = HeapSize(es->heap, 0, es->text) - 1;
if (!(es->undo_text = HeapAlloc(es->heap, 0, es->buffer_size + 1)))
return FALSE;
es->undo_buffer_size = HeapSize(es->heap, 0, es->undo_text) - 1;
*es->text = '\0';
if (es->style & ES_MULTILINE)
if (!(es->first_line_def = HeapAlloc(es->heap, HEAP_ZERO_MEMORY, sizeof(LINEDEF))))
return FALSE;
es->line_count = 1;
return TRUE;
}
/*********************************************************************
*
* WM_PAINT
*
*/
static void EDIT_WM_Paint(WND *wnd, EDITSTATE *es)
{
PAINTSTRUCT ps;
INT i;
HDC dc;
HFONT old_font = 0;
RECT rc;
RECT rcLine;
RECT rcRgn;
BOOL rev = IsWindowEnabled(wnd->hwndSelf) &&
((es->flags & EF_FOCUSED) ||
(es->style & ES_NOHIDESEL));
if (es->flags & EF_UPDATE)
EDIT_NOTIFY_PARENT(wnd, EN_UPDATE, "EN_UPDATE");
dc = BeginPaint(wnd->hwndSelf, &ps);
if(es->style & WS_BORDER) {
GetClientRect(wnd->hwndSelf, &rc);
if(es->style & ES_MULTILINE) {
if(es->style & WS_HSCROLL) rc.bottom++;
if(es->style & WS_VSCROLL) rc.right++;
}
Rectangle(dc, rc.left, rc.top, rc.right, rc.bottom);
}
IntersectClipRect(dc, es->format_rect.left,
es->format_rect.top,
es->format_rect.right,
es->format_rect.bottom);
if (es->style & ES_MULTILINE) {
GetClientRect(wnd->hwndSelf, &rc);
IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
}
if (es->font)
old_font = SelectObject(dc, es->font);
if (!IsWindowEnabled(wnd->hwndSelf) || (es->style & ES_READONLY))
EDIT_SEND_CTLCOLORSTATIC(wnd, dc);
else
EDIT_SEND_CTLCOLOR(wnd, dc);
if (!IsWindowEnabled(wnd->hwndSelf))
SetTextColor(dc, GetSysColor(COLOR_GRAYTEXT));
GetClipBox(dc, &rcRgn);
if (es->style & ES_MULTILINE) {
INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
for (i = es->y_offset ; i <= MIN(es->y_offset + vlc, es->y_offset + es->line_count - 1) ; i++) {
EDIT_GetLineRect(wnd, es, i, 0, -1, &rcLine);
if (IntersectRect(&rc, &rcRgn, &rcLine))
EDIT_PaintLine(wnd, es, dc, i, rev);
}
} else {
EDIT_GetLineRect(wnd, es, 0, 0, -1, &rcLine);
if (IntersectRect(&rc, &rcRgn, &rcLine))
EDIT_PaintLine(wnd, es, dc, 0, rev);
}
if (es->font)
SelectObject(dc, old_font);
if (es->flags & EF_FOCUSED)
EDIT_SetCaretPos(wnd, es, es->selection_end,
es->flags & EF_AFTER_WRAP);
EndPaint(wnd->hwndSelf, &ps);
if ((es->style & WS_VSCROLL) && !(es->flags & EF_VSCROLL_TRACK)) {
INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
SCROLLINFO si;
si.cbSize = sizeof(SCROLLINFO);
si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
si.nMin = 0;
si.nMax = es->line_count + vlc - 2;
si.nPage = vlc;
si.nPos = es->y_offset;
SetScrollInfo(wnd->hwndSelf, SB_VERT, &si, TRUE);
}
if ((es->style & WS_HSCROLL) && !(es->flags & EF_HSCROLL_TRACK)) {
SCROLLINFO si;
INT fw = es->format_rect.right - es->format_rect.left;
si.cbSize = sizeof(SCROLLINFO);
si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
si.nMin = 0;
si.nMax = es->text_width + fw - 1;
si.nPage = fw;
si.nPos = es->x_offset;
SetScrollInfo(wnd->hwndSelf, SB_HORZ, &si, TRUE);
}
if (es->flags & EF_UPDATE) {
es->flags &= ~EF_UPDATE;
EDIT_NOTIFY_PARENT(wnd, EN_CHANGE, "EN_CHANGE");
}
}
/*********************************************************************
*
* WM_PASTE
*
*/
static void EDIT_WM_Paste(WND *wnd, EDITSTATE *es)
{
HGLOBAL hsrc;
LPSTR src;
OpenClipboard(wnd->hwndSelf);
if ((hsrc = GetClipboardData(CF_TEXT))) {
src = (LPSTR)GlobalLock(hsrc);
EDIT_EM_ReplaceSel(wnd, es, TRUE, src);
GlobalUnlock(hsrc);
}
CloseClipboard();
}
/*********************************************************************
*
* WM_SETFOCUS
*
*/
static void EDIT_WM_SetFocus(WND *wnd, EDITSTATE *es, HWND window_losing_focus)
{
es->flags |= EF_FOCUSED;
CreateCaret(wnd->hwndSelf, 0, 2, es->line_height);
EDIT_SetCaretPos(wnd, es, es->selection_end,
es->flags & EF_AFTER_WRAP);
if(!(es->style & ES_NOHIDESEL))
EDIT_InvalidateText(wnd, es, es->selection_start, es->selection_end);
ShowCaret(wnd->hwndSelf);
EDIT_NOTIFY_PARENT(wnd, EN_SETFOCUS, "EN_SETFOCUS");
}
/*********************************************************************
*
* WM_SETFONT
*
* With Win95 look the margins are set to default font value unless
* the system font (font == 0) is being set, in which case they are left
* unchanged.
*
*/
static void EDIT_WM_SetFont(WND *wnd, EDITSTATE *es, HFONT font, BOOL redraw)
{
TEXTMETRICA tm;
HDC dc;
HFONT old_font = 0;
es->font = font;
dc = GetDC(wnd->hwndSelf);
if (font)
old_font = SelectObject(dc, font);
GetTextMetricsA(dc, &tm);
es->line_height = tm.tmHeight;
es->char_width = tm.tmAveCharWidth;
if (font)
SelectObject(dc, old_font);
ReleaseDC(wnd->hwndSelf, dc);
if (font && (TWEAK_WineLook > WIN31_LOOK))
EDIT_EM_SetMargins(wnd, es, EC_LEFTMARGIN | EC_RIGHTMARGIN,
EC_USEFONTINFO, EC_USEFONTINFO);
if (es->style & ES_MULTILINE)
EDIT_BuildLineDefs_ML(wnd, es);
else {
RECT r;
GetClientRect(wnd->hwndSelf, &r);
EDIT_SetRectNP(wnd, es, &r);
}
if (redraw)
InvalidateRect(wnd->hwndSelf, NULL, TRUE);
if (es->flags & EF_FOCUSED) {
DestroyCaret();
CreateCaret(wnd->hwndSelf, 0, 2, es->line_height);
EDIT_SetCaretPos(wnd, es, es->selection_end,
es->flags & EF_AFTER_WRAP);
ShowCaret(wnd->hwndSelf);
}
}
/*********************************************************************
*
* WM_SETTEXT
*
* NOTES
* For multiline controls (ES_MULTILINE), reception of WM_SETTEXT triggers:
* The modified flag is reset. No notifications are sent.
*
* For single-line controls, reception of WM_SETTEXT triggers:
* The modified flag is reset. EN_UPDATE and EN_CHANGE notifications are sent.
*
*/
static void EDIT_WM_SetText(WND *wnd, EDITSTATE *es, LPCSTR text)
{
EDIT_EM_SetSel(wnd, es, 0, -1, FALSE);
if (text) {
TRACE_(edit)("\t'%s'\n", text);
EDIT_EM_ReplaceSel(wnd, es, FALSE, text);
} else {
TRACE_(edit)("\t<NULL>\n");
EDIT_EM_ReplaceSel(wnd, es, FALSE, "");
}
es->x_offset = 0;
if (es->style & ES_MULTILINE) {
es->flags &= ~EF_UPDATE;
} else {
es->flags |= EF_UPDATE;
}
es->flags &= ~EF_MODIFIED;
EDIT_EM_SetSel(wnd, es, 0, 0, FALSE);
EDIT_EM_ScrollCaret(wnd, es);
}
/*********************************************************************
*
* WM_SIZE
*
*/
static void EDIT_WM_Size(WND *wnd, EDITSTATE *es, UINT action, INT width, INT height)
{
if ((action == SIZE_MAXIMIZED) || (action == SIZE_RESTORED)) {
RECT rc;
SetRect(&rc, 0, 0, width, height);
EDIT_SetRectNP(wnd, es, &rc);
InvalidateRect(wnd->hwndSelf, NULL, TRUE);
}
}
/*********************************************************************
*
* WM_SYSKEYDOWN
*
*/
static LRESULT EDIT_WM_SysKeyDown(WND *wnd, EDITSTATE *es, INT key, DWORD key_data)
{
if ((key == VK_BACK) && (key_data & 0x2000)) {
if (EDIT_EM_CanUndo(wnd, es))
EDIT_EM_Undo(wnd, es);
return 0;
} else if (key == VK_UP || key == VK_DOWN)
if (EDIT_CheckCombo(wnd, WM_SYSKEYDOWN, key, key_data))
return 0;
return DefWindowProcA(wnd->hwndSelf, WM_SYSKEYDOWN, (WPARAM)key, (LPARAM)key_data);
}
/*********************************************************************
*
* WM_TIMER
*
*/
static void EDIT_WM_Timer(WND *wnd, EDITSTATE *es, INT id, TIMERPROC timer_proc)
{
if (es->region_posx < 0) {
EDIT_MoveBackward(wnd, es, TRUE);
} else if (es->region_posx > 0) {
EDIT_MoveForward(wnd, es, TRUE);
}
/*
* FIXME: gotta do some vertical scrolling here, like
* EDIT_EM_LineScroll(wnd, 0, 1);
*/
}
/*********************************************************************
*
* EDIT_VScroll_Hack
*
* 16 bit notepad needs this. Actually it is not _our_ hack,
* it is notepad's. Notepad is sending us scrollbar messages with
* undocumented parameters without us even having a scrollbar ... !?!?
*
*/
static LRESULT EDIT_VScroll_Hack(WND *wnd, EDITSTATE *es, INT action, INT pos, HWND scroll_bar)
{
INT dy = 0;
LRESULT ret = 0;
if (!(es->flags & EF_VSCROLL_HACK)) {
ERR_(edit)("hacked WM_VSCROLL handler invoked\n");
ERR_(edit)(" if you are _not_ running 16 bit notepad, please report\n");
ERR_(edit)(" (this message is only displayed once per edit control)\n");
es->flags |= EF_VSCROLL_HACK;
}
switch (action) {
case SB_LINEUP:
case SB_LINEDOWN:
case SB_PAGEUP:
case SB_PAGEDOWN:
EDIT_EM_Scroll(wnd, es, action);
return 0;
case SB_TOP:
dy = -es->y_offset;
break;
case SB_BOTTOM:
dy = es->line_count - 1 - es->y_offset;
break;
case SB_THUMBTRACK:
es->flags |= EF_VSCROLL_TRACK;
dy = (pos * (es->line_count - 1) + 50) / 100 - es->y_offset;
break;
case SB_THUMBPOSITION:
es->flags &= ~EF_VSCROLL_TRACK;
if (!(dy = (pos * (es->line_count - 1) + 50) / 100 - es->y_offset))
EDIT_NOTIFY_PARENT(wnd, EN_VSCROLL, "EN_VSCROLL");
break;
case SB_ENDSCROLL:
break;
/*
* FIXME : the next two are undocumented !
* Are we doing the right thing ?
* At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
* although it's also a regular control message.
*/
case EM_GETTHUMB16:
ret = (es->line_count > 1) ? es->y_offset * 100 / (es->line_count - 1) : 0;
break;
case EM_LINESCROLL16:
dy = pos;
break;
default:
ERR_(edit)("undocumented (hacked) WM_VSCROLL parameter, please report\n");
return 0;
}
if (dy)
EDIT_EM_LineScroll(wnd, es, 0, dy);
return ret;
}
/*********************************************************************
*
* WM_VSCROLL
*
*/
static LRESULT EDIT_WM_VScroll(WND *wnd, EDITSTATE *es, INT action, INT pos, HWND scroll_bar)
{
INT dy;
if (!(es->style & ES_MULTILINE))
return 0;
if (!(es->style & ES_AUTOVSCROLL))
return 0;
if (!(es->style & WS_VSCROLL))
return EDIT_VScroll_Hack(wnd, es, action, pos, scroll_bar);
dy = 0;
switch (action) {
case SB_LINEUP:
case SB_LINEDOWN:
case SB_PAGEUP:
case SB_PAGEDOWN:
EDIT_EM_Scroll(wnd, es, action);
return 0;
case SB_TOP:
dy = -es->y_offset;
break;
case SB_BOTTOM:
dy = es->line_count - 1 - es->y_offset;
break;
case SB_THUMBTRACK:
es->flags |= EF_VSCROLL_TRACK;
dy = pos - es->y_offset;
break;
case SB_THUMBPOSITION:
es->flags &= ~EF_VSCROLL_TRACK;
if (!(dy = pos - es->y_offset)) {
SetScrollPos(wnd->hwndSelf, SB_VERT, pos, TRUE);
EDIT_NOTIFY_PARENT(wnd, EN_VSCROLL, "EN_VSCROLL");
}
break;
case SB_ENDSCROLL:
break;
default:
ERR_(edit)("undocumented WM_VSCROLL action %d, please report\n",
action);
return 0;
}
if (dy)
EDIT_EM_LineScroll(wnd, es, 0, dy);
return 0;
}
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