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comctl32: Implement LM_GETIDEALSIZE for the syslink control.

This commit is contained in:
Thomas Weidenmueller 2007-02-19 16:25:01 +01:00 committed by Alexandre Julliard
parent 8c5d169a20
commit 254b97732b
2 changed files with 108 additions and 60 deletions
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97
dlls/comctl32/syslink.c
View File

@ -643,18 +643,24 @@ static BOOL SYSLINK_WrapLine (HDC hdc, LPWSTR Text, WCHAR BreakChar, int *LineLe
* SYSLINK_Render
* Renders the document in memory
*/
static VOID SYSLINK_Render (SYSLINK_INFO *infoPtr, HDC hdc)
static VOID SYSLINK_Render (SYSLINK_INFO *infoPtr, HDC hdc, PRECT pRect)
{
RECT rc;
PDOC_ITEM Current;
HGDIOBJ hOldFont;
int x, y, LineHeight;
SIZE szDoc;
GetClientRect(infoPtr->Self, &rc);
szDoc.cx = szDoc.cy = 0;
rc = *pRect;
rc.right -= SL_RIGHTMARGIN;
rc.bottom -= SL_BOTTOMMARGIN;
if(rc.right - SL_LEFTMARGIN < 0 || rc.bottom - SL_TOPMARGIN < 0) return;
if(rc.right - SL_LEFTMARGIN < 0)
rc.right = MAXLONG;
if (rc.bottom - SL_TOPMARGIN < 0)
rc.bottom = MAXLONG;
hOldFont = SelectObject(hdc, infoPtr->Font);
@ -715,6 +721,7 @@ static VOID SYSLINK_Render (SYSLINK_INFO *infoPtr, HDC hdc)
{
int LineLen = n;
BOOL Wrap = FALSE;
PDOC_TEXTBLOCK nbl;
if(n != 0)
{
@ -753,30 +760,12 @@ static VOID SYSLINK_Render (SYSLINK_INFO *infoPtr, HDC hdc)
}
}
if(bl != NULL)
{
PDOC_TEXTBLOCK nbl = ReAlloc(bl, (nBlocks + 1) * sizeof(DOC_TEXTBLOCK));
nbl = ReAlloc(bl, (nBlocks + 1) * sizeof(DOC_TEXTBLOCK));
if (nbl != NULL)
{
bl = nbl;
nBlocks++;
}
else
{
Free(bl);
bl = NULL;
nBlocks = 0;
}
}
else
{
bl = Alloc(sizeof(DOC_TEXTBLOCK));
if (bl != NULL)
nBlocks++;
}
if(bl != NULL)
{
cbl = bl + nBlocks - 1;
cbl->nChars = LineLen;
@ -786,6 +775,11 @@ static VOID SYSLINK_Render (SYSLINK_INFO *infoPtr, HDC hdc)
cbl->rc.right = x + szDim.cx;
cbl->rc.bottom = y + szDim.cy;
if (cbl->rc.right > szDoc.cx)
szDoc.cx = cbl->rc.right;
if (cbl->rc.bottom > szDoc.cy)
szDoc.cy = cbl->rc.bottom;
if(LineLen != 0)
{
x += szDim.cx;
@ -801,6 +795,10 @@ static VOID SYSLINK_Render (SYSLINK_INFO *infoPtr, HDC hdc)
}
else
{
Free(bl);
bl = NULL;
nBlocks = 0;
ERR("Failed to alloc DOC_TEXTBLOCK structure!\n");
break;
}
@ -820,6 +818,9 @@ static VOID SYSLINK_Render (SYSLINK_INFO *infoPtr, HDC hdc)
}
SelectObject(hdc, hOldFont);
pRect->right = pRect->left + szDoc.cx;
pRect->bottom = pRect->top + szDoc.cy;
}
/***********************************************************************
@ -920,6 +921,7 @@ static HFONT SYSLINK_SetFont (SYSLINK_INFO *infoPtr, HFONT hFont, BOOL bRedraw)
HDC hdc;
LOGFONTW lf;
TEXTMETRICW tm;
RECT rcClient;
HFONT hOldFont = infoPtr->Font;
infoPtr->Font = hFont;
@ -931,6 +933,8 @@ static HFONT SYSLINK_SetFont (SYSLINK_INFO *infoPtr, HFONT hFont, BOOL bRedraw)
}
/* Render text position and word wrapping in memory */
if (GetClientRect(infoPtr->Self, &rcClient))
{
hdc = GetDC(infoPtr->Self);
if(hdc != NULL)
{
@ -947,9 +951,10 @@ static HFONT SYSLINK_SetFont (SYSLINK_INFO *infoPtr, HFONT hFont, BOOL bRedraw)
ERR("Failed to create link font!\n");
}
SYSLINK_Render(infoPtr, hdc);
SYSLINK_Render(infoPtr, hdc, &rcClient);
ReleaseDC(infoPtr->Self, hdc);
}
}
if(bRedraw)
{
@ -978,16 +983,21 @@ static LRESULT SYSLINK_SetText (SYSLINK_INFO *infoPtr, LPCWSTR Text)
/* let's parse the string and create a document */
if(SYSLINK_ParseText(infoPtr, Text) > 0)
{
RECT rcClient;
/* Render text position and word wrapping in memory */
if (GetClientRect(infoPtr->Self, &rcClient))
{
HDC hdc = GetDC(infoPtr->Self);
if (hdc != NULL)
{
SYSLINK_Render(infoPtr, hdc);
SYSLINK_Render(infoPtr, hdc, &rcClient);
ReleaseDC(infoPtr->Self, hdc);
InvalidateRect(infoPtr->Self, NULL, TRUE);
}
}
}
return TRUE;
}
@ -1076,6 +1086,7 @@ static LRESULT SYSLINK_SetItem (SYSLINK_INFO *infoPtr, PLITEM Item)
else
{
Free(szId);
ERR("Unable to allocate memory for link url\n");
return FALSE;
}
@ -1502,6 +1513,33 @@ static BOOL SYSLINK_NoNextLink (SYSLINK_INFO *infoPtr, BOOL Prev)
return NewFocus == NULL;
}
/***********************************************************************
* SYSLINK_GetIdealSize
* Calculates the ideal size of a link control at a given maximum width.
*/
static VOID SYSLINK_GetIdealSize (SYSLINK_INFO *infoPtr, int cxMaxWidth, LPSIZE lpSize)
{
RECT rc;
HDC hdc;
rc.left = rc.top = rc.bottom = 0;
rc.right = cxMaxWidth;
hdc = GetDC(infoPtr->Self);
if (hdc != NULL)
{
HGDIOBJ hOldFont = SelectObject(hdc, infoPtr->Font);
SYSLINK_Render(infoPtr, hdc, &rc);
SelectObject(hdc, hOldFont);
ReleaseDC(infoPtr->Self, hdc);
lpSize->cx = rc.right;
lpSize->cy = rc.bottom;
}
}
/***********************************************************************
* SysLinkWindowProc
*/
@ -1541,13 +1579,17 @@ static LRESULT WINAPI SysLinkWindowProc(HWND hwnd, UINT message,
}
case WM_SIZE:
{
RECT rcClient;
if (GetClientRect(infoPtr->Self, &rcClient))
{
HDC hdc = GetDC(infoPtr->Self);
if(hdc != NULL)
{
SYSLINK_Render(infoPtr, hdc);
SYSLINK_Render(infoPtr, hdc, &rcClient);
ReleaseDC(infoPtr->Self, hdc);
}
}
return 0;
}
@ -1651,6 +1693,11 @@ static LRESULT WINAPI SysLinkWindowProc(HWND hwnd, UINT message,
return SYSLINK_GetItem(infoPtr, (PLITEM)lParam);
case LM_GETIDEALHEIGHT:
if (lParam)
{
/* LM_GETIDEALSIZE */
SYSLINK_GetIdealSize(infoPtr, (int)wParam, (LPSIZE)lParam);
}
return SYSLINK_GetIdealHeight(infoPtr);
case WM_SETFOCUS:

1
include/commctrl.h
View File

@ -4889,6 +4889,7 @@ static const WCHAR WC_LINK[] = { 'S','y','s','L','i','n','k',0 };
/* SysLink messages */
#define LM_HITTEST (WM_USER + 768)
#define LM_GETIDEALHEIGHT (WM_USER + 769)
#define LM_GETIDEALSIZE (LM_GETIDEALHEIGHT)
#define LM_SETITEM (WM_USER + 770)
#define LM_GETITEM (WM_USER + 771)