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Sweden-Number/dlls/comctl32/updown.c

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/*
* Updown control
*
* Copyright 1997, 2002 Dimitrie O. Paun
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* NOTE
*
* This code was audited for completeness against the documented features
* of Comctl32.dll version 6.0 on Sep. 9, 2002, by Dimitrie O. Paun.
*
* Unless otherwise noted, we believe this code to be complete, as per
* the specification mentioned above.
* If you discover missing features, or bugs, please note them below.
*
*/
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <stdio.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "winnls.h"
#include "commctrl.h"
#include "wine/unicode.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(updown);
typedef struct
{
HWND Self; /* Handle to this up-down control */
UINT AccelCount; /* Number of elements in AccelVect */
UDACCEL* AccelVect; /* Vector containing AccelCount elements */
INT AccelIndex; /* Current accel index, -1 if not accel'ing */
INT Base; /* Base to display nr in the buddy window */
INT CurVal; /* Current up-down value */
INT MinVal; /* Minimum up-down value */
INT MaxVal; /* Maximum up-down value */
HWND Buddy; /* Handle to the buddy window */
INT BuddyType; /* Remembers the buddy type BUDDY_TYPE_* */
INT Flags; /* Internal Flags FLAG_* */
BOOL UnicodeFormat; /* Marks the use of Unicode internally */
} UPDOWN_INFO;
/* Control configuration constants */
#define INITIAL_DELAY 500 /* initial timer until auto-inc kicks in */
#define AUTOPRESS_DELAY 250 /* time to keep arrow pressed on KEY_DOWN */
#define REPEAT_DELAY 50 /* delay between auto-increments */
#define DEFAULT_WIDTH 14 /* default width of the ctrl */
#define DEFAULT_XSEP 0 /* default separation between buddy and ctrl */
#define DEFAULT_ADDTOP 0 /* amount to extend above the buddy window */
#define DEFAULT_ADDBOT 0 /* amount to extend below the buddy window */
#define DEFAULT_BUDDYBORDER 2 /* Width/height of the buddy border */
#define DEFAULT_BUDDYSPACER 2 /* Spacer between the buddy and the ctrl */
/* Work constants */
#define FLAG_INCR 0x01
#define FLAG_DECR 0x02
#define FLAG_MOUSEIN 0x04
#define FLAG_PRESSED 0x08
#define FLAG_ARROW (FLAG_INCR | FLAG_DECR)
#define BUDDY_TYPE_UNKNOWN 0
#define BUDDY_TYPE_LISTBOX 1
#define BUDDY_TYPE_EDIT 2
#define TIMER_AUTOREPEAT 1
#define TIMER_ACCEL 2
#define TIMER_AUTOPRESS 3
#define BUDDY_UPDOWN_HWND "buddyUpDownHWND"
#define BUDDY_SUPERCLASS_WNDPROC "buddySupperClassWndProc"
#define UPDOWN_GetInfoPtr(hwnd) ((UPDOWN_INFO *)GetWindowLongA (hwnd,0))
#define COUNT_OF(a) (sizeof(a)/sizeof(a[0]))
static void UPDOWN_DoAction (UPDOWN_INFO *infoPtr, int delta, int action);
/***********************************************************************
* UPDOWN_IsBuddyEdit
* Tests if our buddy is an edit control.
*/
static inline BOOL UPDOWN_IsBuddyEdit(UPDOWN_INFO *infoPtr)
{
return infoPtr->BuddyType == BUDDY_TYPE_EDIT;
}
/***********************************************************************
* UPDOWN_IsBuddyListbox
* Tests if our buddy is a listbox control.
*/
static inline BOOL UPDOWN_IsBuddyListbox(UPDOWN_INFO *infoPtr)
{
return infoPtr->BuddyType == BUDDY_TYPE_LISTBOX;
}
/***********************************************************************
* UPDOWN_InBounds
* Tests if a given value 'val' is between the Min&Max limits
*/
static BOOL UPDOWN_InBounds(UPDOWN_INFO *infoPtr, int val)
{
if(infoPtr->MaxVal > infoPtr->MinVal)
return (infoPtr->MinVal <= val) && (val <= infoPtr->MaxVal);
else
return (infoPtr->MaxVal <= val) && (val <= infoPtr->MinVal);
}
/***********************************************************************
* UPDOWN_OffsetVal
* Change the current value by delta.
* It returns TRUE is the value was changed successfuly, or FALSE
* if the value was not changed, as it would go out of bounds.
*/
static BOOL UPDOWN_OffsetVal(UPDOWN_INFO *infoPtr, int delta)
{
/* check if we can do the modification first */
if(!UPDOWN_InBounds (infoPtr, infoPtr->CurVal+delta)) {
if (GetWindowLongW (infoPtr->Self, GWL_STYLE) & UDS_WRAP) {
delta += (delta < 0 ? -1 : 1) *
(infoPtr->MaxVal < infoPtr->MinVal ? -1 : 1) *
(infoPtr->MinVal - infoPtr->MaxVal) +
(delta < 0 ? 1 : -1);
} else return FALSE;
}
infoPtr->CurVal += delta;
return TRUE;
}
/***********************************************************************
* UPDOWN_HasBuddyBorder
*
* When we have a buddy set and that we are aligned on our buddy, we
* want to draw a sunken edge to make like we are part of that control.
*/
static BOOL UPDOWN_HasBuddyBorder(UPDOWN_INFO* infoPtr)
{
DWORD dwStyle = GetWindowLongW (infoPtr->Self, GWL_STYLE);
return ( ((dwStyle & (UDS_ALIGNLEFT | UDS_ALIGNRIGHT)) != 0) &&
UPDOWN_IsBuddyEdit(infoPtr) );
}
/***********************************************************************
* UPDOWN_GetArrowRect
* wndPtr - pointer to the up-down wnd
* rect - will hold the rectangle
* arrow - FLAG_INCR to get the "increment" rect (up or right)
* FLAG_DECR to get the "decrement" rect (down or left)
* If both flags are pressent, the envelope is returned.
*/
static void UPDOWN_GetArrowRect (UPDOWN_INFO* infoPtr, RECT *rect, int arrow)
{
DWORD dwStyle = GetWindowLongW (infoPtr->Self, GWL_STYLE);
GetClientRect (infoPtr->Self, rect);
/*
* Make sure we calculate the rectangle to fit even if we draw the
* border.
*/
if (UPDOWN_HasBuddyBorder(infoPtr)) {
if (dwStyle & UDS_ALIGNLEFT)
rect->left += DEFAULT_BUDDYBORDER;
else
rect->right -= DEFAULT_BUDDYBORDER;
InflateRect(rect, 0, -DEFAULT_BUDDYBORDER);
}
/* now figure out if we need a space away from the buddy */
if ( IsWindow(infoPtr->Buddy) ) {
if (dwStyle & UDS_ALIGNLEFT) rect->right -= DEFAULT_BUDDYSPACER;
else rect->left += DEFAULT_BUDDYSPACER;
}
/*
* We're calculating the midpoint to figure-out where the
* separation between the buttons will lay. We make sure that we
* round the uneven numbers by adding 1.
*/
if (dwStyle & UDS_HORZ) {
int len = rect->right - rect->left + 1; /* compute the width */
if (arrow & FLAG_INCR)
rect->left = rect->left + len/2;
if (arrow & FLAG_DECR)
rect->right = rect->left + len/2 - 1;
} else {
int len = rect->bottom - rect->top + 1; /* compute the height */
if (arrow & FLAG_INCR)
rect->bottom = rect->top + len/2 - 1;
if (arrow & FLAG_DECR)
rect->top = rect->top + len/2;
}
}
/***********************************************************************
* UPDOWN_GetArrowFromPoint
* Returns the rectagle (for the up or down arrow) that contains pt.
* If it returns the up rect, it returns TRUE.
* If it returns the down rect, it returns FALSE.
*/
static BOOL UPDOWN_GetArrowFromPoint (UPDOWN_INFO* infoPtr, RECT *rect, POINT pt)
{
UPDOWN_GetArrowRect (infoPtr, rect, FLAG_INCR);
if(PtInRect(rect, pt)) return FLAG_INCR;
UPDOWN_GetArrowRect (infoPtr, rect, FLAG_DECR);
if(PtInRect(rect, pt)) return FLAG_DECR;
return 0;
}
/***********************************************************************
* UPDOWN_GetThousandSep
* Returns the thousand sep. If an error occurs, it returns ','.
*/
static WCHAR UPDOWN_GetThousandSep()
{
WCHAR sep[2];
if(GetLocaleInfoW(LOCALE_USER_DEFAULT, LOCALE_STHOUSAND, sep, 2) != 1)
sep[0] = ',';
return sep[0];
}
/***********************************************************************
* UPDOWN_GetBuddyInt
* Tries to read the pos from the buddy window and if it succeeds,
* it stores it in the control's CurVal
* returns:
* TRUE - if it read the integer from the buddy successfully
* FALSE - if an error occurred
*/
static BOOL UPDOWN_GetBuddyInt (UPDOWN_INFO *infoPtr)
{
WCHAR txt[20], sep, *src, *dst;
int newVal;
if (!IsWindow(infoPtr->Buddy))
return FALSE;
/*if the buddy is a list window, we must set curr index */
if (UPDOWN_IsBuddyListbox(infoPtr)) {
newVal = SendMessageW(infoPtr->Buddy, LB_GETCARETINDEX, 0, 0);
if(newVal < 0) return FALSE;
} else {
/* we have a regular window, so will get the text */
if (!GetWindowTextW(infoPtr->Buddy, txt, COUNT_OF(txt))) return FALSE;
sep = UPDOWN_GetThousandSep();
/* now get rid of the separators */
for(src = dst = txt; *src; src++)
if(*src != sep) *dst++ = *src;
*dst = 0;
/* try to convert the number and validate it */
newVal = strtolW(txt, &src, infoPtr->Base);
if(*src || !UPDOWN_InBounds (infoPtr, newVal)) return FALSE;
}
TRACE("new value(%d) from buddy (old=%d)\n", newVal, infoPtr->CurVal);
infoPtr->CurVal = newVal;
return TRUE;
}
/***********************************************************************
* UPDOWN_SetBuddyInt
* Tries to set the pos to the buddy window based on current pos
* returns:
* TRUE - if it set the caption of the buddy successfully
* FALSE - if an error occurred
*/
static BOOL UPDOWN_SetBuddyInt (UPDOWN_INFO *infoPtr)
{
WCHAR fmt[3] = { '%', 'd', '\0' };
WCHAR txt[20];
int len;
if (!IsWindow(infoPtr->Buddy)) return FALSE;
TRACE("set new value(%d) to buddy.\n", infoPtr->CurVal);
/*if the buddy is a list window, we must set curr index */
if (UPDOWN_IsBuddyListbox(infoPtr)) {
return SendMessageW(infoPtr->Buddy, LB_SETCURSEL, infoPtr->CurVal, 0) != LB_ERR;
}
/* Regular window, so set caption to the number */
if (infoPtr->Base == 16) fmt[1] = 'X';
len = wsprintfW(txt, fmt, infoPtr->CurVal);
/* Do thousands separation if necessary */
if (!(GetWindowLongW (infoPtr->Self, GWL_STYLE) & UDS_NOTHOUSANDS) && (len > 3)) {
WCHAR tmp[COUNT_OF(txt)], *src = tmp, *dst = txt;
WCHAR sep = UPDOWN_GetThousandSep();
int start = len % 3;
memcpy(tmp, txt, sizeof(txt));
if (start == 0) start = 3;
dst += start;
src += start;
for (len=0; *src; len++) {
if (len % 3 == 0) *dst++ = sep;
*dst++ = *src++;
}
*dst = 0;
}
return SetWindowTextW(infoPtr->Buddy, txt);
}
/***********************************************************************
* UPDOWN_Draw
*
* Draw the arrows. The background need not be erased.
*/
static LRESULT UPDOWN_Draw (UPDOWN_INFO *infoPtr, HDC hdc)
{
DWORD dwStyle = GetWindowLongW (infoPtr->Self, GWL_STYLE);
BOOL pressed, hot;
RECT rect;
/* Draw the common border between ourselves and our buddy */
if (UPDOWN_HasBuddyBorder(infoPtr)) {
GetClientRect(infoPtr->Self, &rect);
DrawEdge(hdc, &rect, EDGE_SUNKEN,
BF_BOTTOM | BF_TOP |
(dwStyle & UDS_ALIGNLEFT ? BF_LEFT : BF_RIGHT));
}
/* Draw the incr button */
UPDOWN_GetArrowRect (infoPtr, &rect, FLAG_INCR);
pressed = (infoPtr->Flags & FLAG_PRESSED) && (infoPtr->Flags & FLAG_INCR);
hot = (infoPtr->Flags & FLAG_INCR) && (infoPtr->Flags & FLAG_MOUSEIN);
DrawFrameControl(hdc, &rect, DFC_SCROLL,
(dwStyle & UDS_HORZ ? DFCS_SCROLLRIGHT : DFCS_SCROLLUP) |
((dwStyle & UDS_HOTTRACK) && hot ? DFCS_HOT : 0) |
(pressed ? DFCS_PUSHED : 0) |
(dwStyle & WS_DISABLED ? DFCS_INACTIVE : 0) );
/* Draw the decr button */
UPDOWN_GetArrowRect(infoPtr, &rect, FLAG_DECR);
pressed = (infoPtr->Flags & FLAG_PRESSED) && (infoPtr->Flags & FLAG_DECR);
hot = (infoPtr->Flags & FLAG_DECR) && (infoPtr->Flags & FLAG_MOUSEIN);
DrawFrameControl(hdc, &rect, DFC_SCROLL,
(dwStyle & UDS_HORZ ? DFCS_SCROLLLEFT : DFCS_SCROLLDOWN) |
((dwStyle & UDS_HOTTRACK) && hot ? DFCS_HOT : 0) |
(pressed ? DFCS_PUSHED : 0) |
(dwStyle & WS_DISABLED ? DFCS_INACTIVE : 0) );
return 0;
}
/***********************************************************************
* UPDOWN_Paint
*
* Asynchronous drawing (must ONLY be used in WM_PAINT).
* Calls UPDOWN_Draw.
*/
static LRESULT UPDOWN_Paint (UPDOWN_INFO *infoPtr, HDC hdc)
{
PAINTSTRUCT ps;
if (hdc) return UPDOWN_Draw (infoPtr, hdc);
hdc = BeginPaint (infoPtr->Self, &ps);
UPDOWN_Draw (infoPtr, hdc);
EndPaint (infoPtr->Self, &ps);
return 0;
}
/***********************************************************************
* UPDOWN_KeyPressed
*
* Handle key presses (up & down) when we have to do so
*/
static LRESULT UPDOWN_KeyPressed(UPDOWN_INFO *infoPtr, int key)
{
int arrow;
if (key == VK_UP) arrow = FLAG_INCR;
else if (key == VK_DOWN) arrow = FLAG_DECR;
else return 1;
UPDOWN_GetBuddyInt (infoPtr);
infoPtr->Flags &= ~FLAG_ARROW;
infoPtr->Flags |= FLAG_PRESSED | arrow;
InvalidateRect (infoPtr->Self, NULL, FALSE);
SetTimer(infoPtr->Self, TIMER_AUTOPRESS, AUTOPRESS_DELAY, 0);
UPDOWN_DoAction (infoPtr, 1, arrow);
return 0;
}
/***********************************************************************
* UPDOWN_Buddy_SubclassProc used to handle messages sent to the buddy
* control.
*/
static LRESULT CALLBACK
UPDOWN_Buddy_SubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
WNDPROC superClassWndProc = (WNDPROC)GetPropA(hwnd, BUDDY_SUPERCLASS_WNDPROC);
TRACE("hwnd=%p, wndProc=%d, uMsg=%04x, wParam=%d, lParam=%d\n",
hwnd, (INT)superClassWndProc, uMsg, wParam, (UINT)lParam);
if (uMsg == WM_KEYDOWN) {
HWND upDownHwnd = GetPropA(hwnd, BUDDY_UPDOWN_HWND);
UPDOWN_KeyPressed(UPDOWN_GetInfoPtr(upDownHwnd), (int)wParam);
}
return CallWindowProcW( superClassWndProc, hwnd, uMsg, wParam, lParam);
}
/***********************************************************************
* UPDOWN_SetBuddy
* Tests if 'bud' is a valid window handle. If not, returns FALSE.
* Else, sets it as a new Buddy.
* Then, it should subclass the buddy
* If window has the UDS_ARROWKEYS, it subcalsses the buddy window to
* process the UP/DOWN arrow keys.
* If window has the UDS_ALIGNLEFT or UDS_ALIGNRIGHT style
* the size/pos of the buddy and the control are adjusted accordingly.
*/
static BOOL UPDOWN_SetBuddy (UPDOWN_INFO* infoPtr, HWND bud)
{
DWORD dwStyle = GetWindowLongW (infoPtr->Self, GWL_STYLE);
RECT budRect; /* new coord for the buddy */
int x, width; /* new x position and width for the up-down */
WNDPROC baseWndProc;
CHAR buddyClass[40];
/* Is it a valid bud? */
if(!IsWindow(bud)) return FALSE;
TRACE("(hwnd=%p, bud=%p)\n", infoPtr->Self, bud);
/* there is already a body assigned */
if (infoPtr->Buddy) RemovePropA(infoPtr->Buddy, BUDDY_UPDOWN_HWND);
/* Store buddy window handle */
infoPtr->Buddy = bud;
/* keep upDown ctrl hwnd in a buddy property */
SetPropA( bud, BUDDY_UPDOWN_HWND, infoPtr->Self);
/* Store buddy window class type */
infoPtr->BuddyType = BUDDY_TYPE_UNKNOWN;
if (GetClassNameA(bud, buddyClass, COUNT_OF(buddyClass))) {
if (lstrcmpiA(buddyClass, "Edit") == 0)
infoPtr->BuddyType = BUDDY_TYPE_EDIT;
else if (lstrcmpiA(buddyClass, "Listbox") == 0)
infoPtr->BuddyType = BUDDY_TYPE_LISTBOX;
}
if(dwStyle & UDS_ARROWKEYS){
/* Note that I don't clear the BUDDY_SUPERCLASS_WNDPROC property
when we reset the upDown ctrl buddy to another buddy because it is not
good to break the window proc chain. */
if (!GetPropA(bud, BUDDY_SUPERCLASS_WNDPROC)) {
baseWndProc = (WNDPROC)SetWindowLongW(bud, GWL_WNDPROC, (LPARAM)UPDOWN_Buddy_SubclassProc);
SetPropA(bud, BUDDY_SUPERCLASS_WNDPROC, (HANDLE)baseWndProc);
}
}
/* Get the rect of the buddy relative to its parent */
GetWindowRect(infoPtr->Buddy, &budRect);
MapWindowPoints(HWND_DESKTOP, GetParent(infoPtr->Buddy), (POINT *)(&budRect.left), 2);
/* now do the positioning */
if (dwStyle & UDS_ALIGNLEFT) {
x = budRect.left;
budRect.left += DEFAULT_WIDTH + DEFAULT_XSEP;
} else if (dwStyle & UDS_ALIGNRIGHT) {
budRect.right -= DEFAULT_WIDTH + DEFAULT_XSEP;
x = budRect.right+DEFAULT_XSEP;
} else {
x = budRect.right+DEFAULT_XSEP;
}
/* first adjust the buddy to accomodate the up/down */
SetWindowPos(infoPtr->Buddy, 0, budRect.left, budRect.top,
budRect.right - budRect.left, budRect.bottom - budRect.top,
SWP_NOACTIVATE|SWP_NOZORDER);
/* now position the up/down */
/* Since the UDS_ALIGN* flags were used, */
/* we will pick the position and size of the window. */
width = DEFAULT_WIDTH;
/*
* If the updown has a buddy border, it has to overlap with the buddy
* to look as if it is integrated with the buddy control.
* We nudge the control or change it size to overlap.
*/
if (UPDOWN_HasBuddyBorder(infoPtr)) {
if(dwStyle & UDS_ALIGNLEFT)
width += DEFAULT_BUDDYBORDER;
else
x -= DEFAULT_BUDDYBORDER;
}
SetWindowPos(infoPtr->Self, infoPtr->Buddy, x,
budRect.top - DEFAULT_ADDTOP, width,
budRect.bottom - budRect.top + DEFAULT_ADDTOP + DEFAULT_ADDBOT,
SWP_NOACTIVATE);
return TRUE;
}
/***********************************************************************
* UPDOWN_DoAction
*
* This function increments/decrements the CurVal by the
* 'delta' amount according to the 'action' flag which can be a
* combination of FLAG_INCR and FLAG_DECR
* It notifies the parent as required.
* It handles wraping and non-wraping correctly.
* It is assumed that delta>0
*/
static void UPDOWN_DoAction (UPDOWN_INFO *infoPtr, int delta, int action)
{
DWORD dwStyle = GetWindowLongW (infoPtr->Self, GWL_STYLE);
NM_UPDOWN ni;
TRACE("%d by %d\n", action, delta);
/* check if we can do the modification first */
delta *= (action & FLAG_INCR ? 1 : -1) * (infoPtr->MaxVal < infoPtr->MinVal ? -1 : 1);
if ( (action & FLAG_INCR) && (action & FLAG_DECR) ) delta = 0;
/* We must notify parent now to obtain permission */
ni.iPos = infoPtr->CurVal;
ni.iDelta = delta;
ni.hdr.hwndFrom = infoPtr->Self;
ni.hdr.idFrom = GetWindowLongW (infoPtr->Self, GWL_ID);
ni.hdr.code = UDN_DELTAPOS;
if (!SendMessageW(GetParent (infoPtr->Self), WM_NOTIFY,
(WPARAM)ni.hdr.idFrom, (LPARAM)&ni)) {
/* Parent said: OK to adjust */
/* Now adjust value with (maybe new) delta */
if (UPDOWN_OffsetVal (infoPtr, ni.iDelta)) {
/* Now take care about our buddy */
if (dwStyle & UDS_SETBUDDYINT) UPDOWN_SetBuddyInt (infoPtr);
}
}
/* Also, notify it. This message is sent in any case. */
SendMessageW( GetParent(infoPtr->Self),
dwStyle & UDS_HORZ ? WM_HSCROLL : WM_VSCROLL,
MAKELONG(SB_THUMBPOSITION, infoPtr->CurVal),
(LPARAM)infoPtr->Self);
}
/***********************************************************************
* UPDOWN_IsEnabled
*
* Returns TRUE if it is enabled as well as its buddy (if any)
* FALSE otherwise
*/
static BOOL UPDOWN_IsEnabled (UPDOWN_INFO *infoPtr)
{
if(GetWindowLongW (infoPtr->Self, GWL_STYLE) & WS_DISABLED)
return FALSE;
if(infoPtr->Buddy)
return IsWindowEnabled(infoPtr->Buddy);
return TRUE;
}
/***********************************************************************
* UPDOWN_CancelMode
*
* Deletes any timers, releases the mouse and does redraw if necessary.
* If the control is not in "capture" mode, it does nothing.
* If the control was not in cancel mode, it returns FALSE.
* If the control was in cancel mode, it returns TRUE.
*/
static BOOL UPDOWN_CancelMode (UPDOWN_INFO *infoPtr)
{
if (!(infoPtr->Flags & FLAG_PRESSED)) return FALSE;
KillTimer (infoPtr->Self, TIMER_AUTOREPEAT);
KillTimer (infoPtr->Self, TIMER_ACCEL);
KillTimer (infoPtr->Self, TIMER_AUTOPRESS);
if (GetCapture() == infoPtr->Self) {
NMHDR hdr;
hdr.hwndFrom = infoPtr->Self;
hdr.idFrom = GetWindowLongW (infoPtr->Self, GWL_ID);
hdr.code = NM_RELEASEDCAPTURE;
SendMessageW(GetParent (infoPtr->Self), WM_NOTIFY, hdr.idFrom, (LPARAM)&hdr);
ReleaseCapture();
}
infoPtr->Flags &= ~FLAG_PRESSED;
InvalidateRect (infoPtr->Self, NULL, FALSE);
return TRUE;
}
/***********************************************************************
* UPDOWN_HandleMouseEvent
*
* Handle a mouse event for the updown.
* 'pt' is the location of the mouse event in client or
* windows coordinates.
*/
static void UPDOWN_HandleMouseEvent (UPDOWN_INFO *infoPtr, UINT msg, POINTS pts)
{
DWORD dwStyle = GetWindowLongW (infoPtr->Self, GWL_STYLE);
POINT pt = { pts.x, pts.y };
RECT rect;
int temp, arrow;
switch(msg)
{
case WM_LBUTTONDOWN: /* Initialise mouse tracking */
/* If we are inside an arrow, then nothing to do */
if(!(infoPtr->Flags & FLAG_MOUSEIN)) return;
/* If the buddy is an edit, will set focus to it */
if (UPDOWN_IsBuddyEdit(infoPtr)) SetFocus(infoPtr->Buddy);
/* Now see which one is the 'active' arrow */
if (infoPtr->Flags & FLAG_ARROW) {
/* Update the CurVal if necessary */
if (dwStyle & UDS_SETBUDDYINT) UPDOWN_GetBuddyInt (infoPtr);
/* Set up the correct flags */
infoPtr->Flags |= FLAG_PRESSED;
/* repaint the control */
InvalidateRect (infoPtr->Self, NULL, FALSE);
/* process the click */
UPDOWN_DoAction (infoPtr, 1, infoPtr->Flags & FLAG_ARROW);
/* now capture all mouse messages */
SetCapture (infoPtr->Self);
/* and startup the first timer */
SetTimer(infoPtr->Self, TIMER_AUTOREPEAT, INITIAL_DELAY, 0);
}
break;
case WM_MOUSEMOVE:
/* save the flags to see if any got modified */
temp = infoPtr->Flags;
/* Now see which one is the 'active' arrow */
arrow = UPDOWN_GetArrowFromPoint (infoPtr, &rect, pt);
/* Update the flags if we are in/out */
infoPtr->Flags &= ~(FLAG_MOUSEIN | FLAG_ARROW);
if(arrow) {
infoPtr->Flags |= FLAG_MOUSEIN | arrow;
} else {
if(infoPtr->AccelIndex != -1) infoPtr->AccelIndex = 0;
}
/* If state changed, redraw the control */
if(temp != infoPtr->Flags)
InvalidateRect (infoPtr->Self, &rect, FALSE);
break;
default:
ERR("Impossible case (msg=%x)!\n", msg);
}
}
/***********************************************************************
* UpDownWndProc
*/
static LRESULT WINAPI UpDownWindowProc(HWND hwnd, UINT message, WPARAM wParam,
LPARAM lParam)
{
UPDOWN_INFO *infoPtr = UPDOWN_GetInfoPtr (hwnd);
DWORD dwStyle = GetWindowLongW (hwnd, GWL_STYLE);
int temp;
if (!infoPtr && (message != WM_CREATE))
return DefWindowProcW (hwnd, message, wParam, lParam);
switch(message)
{
case WM_CREATE:
SetWindowLongW (hwnd, GWL_STYLE, dwStyle & ~WS_BORDER);
infoPtr = (UPDOWN_INFO*)COMCTL32_Alloc (sizeof(UPDOWN_INFO));
SetWindowLongW (hwnd, 0, (DWORD)infoPtr);
/* initialize the info struct */
infoPtr->Self = hwnd;
infoPtr->AccelCount = 0;
infoPtr->AccelVect = 0;
infoPtr->AccelIndex = -1;
infoPtr->CurVal = 0;
infoPtr->MinVal = 100;
infoPtr->MaxVal = 0;
infoPtr->Base = 10; /* Default to base 10 */
infoPtr->Buddy = 0; /* No buddy window yet */
infoPtr->Flags = 0; /* And no flags */
/* Do we pick the buddy win ourselves? */
if (dwStyle & UDS_AUTOBUDDY)
UPDOWN_SetBuddy (infoPtr, GetWindow (hwnd, GW_HWNDPREV));
TRACE("UpDown Ctrl creation, hwnd=%p\n", hwnd);
break;
case WM_DESTROY:
if(infoPtr->AccelVect) COMCTL32_Free (infoPtr->AccelVect);
if(infoPtr->Buddy) RemovePropA(infoPtr->Buddy, BUDDY_UPDOWN_HWND);
COMCTL32_Free (infoPtr);
SetWindowLongW (hwnd, 0, 0);
TRACE("UpDown Ctrl destruction, hwnd=%p\n", hwnd);
break;
case WM_ENABLE:
if (dwStyle & WS_DISABLED) UPDOWN_CancelMode (infoPtr);
InvalidateRect (infoPtr->Self, NULL, FALSE);
break;
case WM_TIMER:
/* is this the auto-press timer? */
if(wParam == TIMER_AUTOPRESS) {
KillTimer(hwnd, TIMER_AUTOPRESS);
infoPtr->Flags &= ~(FLAG_PRESSED | FLAG_ARROW);
InvalidateRect(infoPtr->Self, NULL, FALSE);
}
/* if initial timer, kill it and start the repeat timer */
if(wParam == TIMER_AUTOREPEAT) {
KillTimer(hwnd, TIMER_AUTOREPEAT);
/* if no accel info given, used default timer */
if(infoPtr->AccelCount==0 || infoPtr->AccelVect==0) {
infoPtr->AccelIndex = -1;
temp = REPEAT_DELAY;
} else {
infoPtr->AccelIndex = 0; /* otherwise, use it */
temp = infoPtr->AccelVect[infoPtr->AccelIndex].nSec * 1000 + 1;
}
SetTimer(hwnd, TIMER_ACCEL, temp, 0);
}
/* now, if the mouse is above us, do the thing...*/
if(infoPtr->Flags & FLAG_MOUSEIN) {
temp = infoPtr->AccelIndex == -1 ? 1 : infoPtr->AccelVect[infoPtr->AccelIndex].nInc;
UPDOWN_DoAction(infoPtr, temp, infoPtr->Flags & FLAG_ARROW);
if(infoPtr->AccelIndex != -1 && infoPtr->AccelIndex < infoPtr->AccelCount-1) {
KillTimer(hwnd, TIMER_ACCEL);
infoPtr->AccelIndex++; /* move to the next accel info */
temp = infoPtr->AccelVect[infoPtr->AccelIndex].nSec * 1000 + 1;
/* make sure we have at least 1ms intervals */
SetTimer(hwnd, TIMER_ACCEL, temp, 0);
}
}
break;
case WM_CANCELMODE:
return UPDOWN_CancelMode (infoPtr);
case WM_LBUTTONUP:
if (GetCapture() != infoPtr->Self) break;
if ( (infoPtr->Flags & FLAG_MOUSEIN) &&
(infoPtr->Flags & FLAG_ARROW) ) {
SendMessageW( GetParent(hwnd),
dwStyle & UDS_HORZ ? WM_HSCROLL : WM_VSCROLL,
MAKELONG(SB_ENDSCROLL, infoPtr->CurVal),
(LPARAM)hwnd);
if (UPDOWN_IsBuddyEdit(infoPtr))
SendMessageW(infoPtr->Buddy, EM_SETSEL, 0, MAKELONG(0, -1));
}
UPDOWN_CancelMode(infoPtr);
break;
case WM_LBUTTONDOWN:
case WM_MOUSEMOVE:
if(UPDOWN_IsEnabled(infoPtr))
UPDOWN_HandleMouseEvent (infoPtr, message, MAKEPOINTS(lParam));
break;
case WM_KEYDOWN:
if((dwStyle & UDS_ARROWKEYS) && UPDOWN_IsEnabled(infoPtr))
return UPDOWN_KeyPressed(infoPtr, (int)wParam);
break;
case WM_PAINT:
return UPDOWN_Paint (infoPtr, (HDC)wParam);
case UDM_GETACCEL:
if (wParam==0 && lParam==0) return infoPtr->AccelCount;
if (wParam && lParam) {
temp = min(infoPtr->AccelCount, wParam);
memcpy((void *)lParam, infoPtr->AccelVect, temp*sizeof(UDACCEL));
return temp;
}
return 0;
case UDM_SETACCEL:
TRACE("UpDown Ctrl new accel info, hwnd=%p\n", hwnd);
if(infoPtr->AccelVect) {
COMCTL32_Free (infoPtr->AccelVect);
infoPtr->AccelCount = 0;
infoPtr->AccelVect = 0;
}
if(wParam==0) return TRUE;
infoPtr->AccelVect = COMCTL32_Alloc (wParam*sizeof(UDACCEL));
if(infoPtr->AccelVect == 0) return FALSE;
memcpy(infoPtr->AccelVect, (void*)lParam, wParam*sizeof(UDACCEL));
return TRUE;
case UDM_GETBASE:
return infoPtr->Base;
case UDM_SETBASE:
TRACE("UpDown Ctrl new base(%d), hwnd=%p\n", wParam, hwnd);
if (wParam==10 || wParam==16) {
temp = infoPtr->Base;
infoPtr->Base = wParam;
return temp;
}
break;
case UDM_GETBUDDY:
return (LRESULT)infoPtr->Buddy;
case UDM_SETBUDDY:
temp = (int)infoPtr->Buddy;
UPDOWN_SetBuddy (infoPtr, (HWND)wParam);
return temp;
case UDM_GETPOS:
temp = UPDOWN_GetBuddyInt (infoPtr);
return MAKELONG(infoPtr->CurVal, temp ? 0 : 1);
case UDM_SETPOS:
temp = SLOWORD(lParam);
TRACE("UpDown Ctrl new value(%d), hwnd=%p\n", temp, hwnd);
if(!UPDOWN_InBounds(infoPtr, temp)) {
if(temp < infoPtr->MinVal) temp = infoPtr->MinVal;
if(temp > infoPtr->MaxVal) temp = infoPtr->MaxVal;
}
wParam = infoPtr->CurVal;
infoPtr->CurVal = temp;
if(dwStyle & UDS_SETBUDDYINT) UPDOWN_SetBuddyInt (infoPtr);
return wParam; /* return prev value */
case UDM_GETRANGE:
return MAKELONG(infoPtr->MaxVal, infoPtr->MinVal);
case UDM_SETRANGE:
/* we must have: */
infoPtr->MaxVal = SLOWORD(lParam); /* UD_MINVAL <= Max <= UD_MAXVAL */
infoPtr->MinVal = SHIWORD(lParam); /* UD_MINVAL <= Min <= UD_MAXVAL */
/* |Max-Min| <= UD_MAXVAL */
TRACE("UpDown Ctrl new range(%d to %d), hwnd=%p\n",
infoPtr->MinVal, infoPtr->MaxVal, hwnd);
break;
case UDM_GETRANGE32:
if (wParam) *(LPINT)wParam = infoPtr->MinVal;
if (lParam) *(LPINT)lParam = infoPtr->MaxVal;
break;
case UDM_SETRANGE32:
infoPtr->MinVal = (INT)wParam;
infoPtr->MaxVal = (INT)lParam;
if (infoPtr->MaxVal <= infoPtr->MinVal)
infoPtr->MaxVal = infoPtr->MinVal + 1;
TRACE("UpDown Ctrl new range(%d to %d), hwnd=%p\n",
infoPtr->MinVal, infoPtr->MaxVal, hwnd);
break;
case UDM_GETPOS32:
if ((LPBOOL)lParam != NULL) *((LPBOOL)lParam) = TRUE;
return infoPtr->CurVal;
case UDM_SETPOS32:
if(!UPDOWN_InBounds(infoPtr, (int)lParam)) {
if((int)lParam < infoPtr->MinVal) lParam = infoPtr->MinVal;
if((int)lParam > infoPtr->MaxVal) lParam = infoPtr->MaxVal;
}
temp = infoPtr->CurVal; /* save prev value */
infoPtr->CurVal = (int)lParam; /* set the new value */
if(dwStyle & UDS_SETBUDDYINT) UPDOWN_SetBuddyInt (infoPtr);
return temp; /* return prev value */
case UDM_GETUNICODEFORMAT:
/* we lie a bit here, we're always using Unicode internally */
return infoPtr->UnicodeFormat;
case UDM_SETUNICODEFORMAT:
/* do we really need to honour this flag? */
temp = infoPtr->UnicodeFormat;
infoPtr->UnicodeFormat = (BOOL)wParam;
return temp;
default:
if ((message >= WM_USER) && (message < WM_APP))
ERR("unknown msg %04x wp=%04x lp=%08lx\n", message, wParam, lParam);
return DefWindowProcW (hwnd, message, wParam, lParam);
}
return 0;
}
/***********************************************************************
* UPDOWN_Register [Internal]
*
* Registers the updown window class.
*/
void UPDOWN_Register(void)
{
WNDCLASSW wndClass;
ZeroMemory( &wndClass, sizeof( WNDCLASSW ) );
wndClass.style = CS_GLOBALCLASS | CS_VREDRAW;
wndClass.lpfnWndProc = (WNDPROC)UpDownWindowProc;
wndClass.cbClsExtra = 0;
wndClass.cbWndExtra = sizeof(UPDOWN_INFO*);
wndClass.hCursor = LoadCursorW( 0, (LPWSTR)IDC_ARROW );
wndClass.hbrBackground = (HBRUSH)(COLOR_3DFACE + 1);
wndClass.lpszClassName = UPDOWN_CLASSW;
RegisterClassW( &wndClass );
}
/***********************************************************************
* UPDOWN_Unregister [Internal]
*
* Unregisters the updown window class.
*/
void UPDOWN_Unregister (void)
{
UnregisterClassW (UPDOWN_CLASSW, NULL);
}
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