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Start of balloon tip support.

This commit is contained in:
Robert Shearman 2004-06-28 23:52:37 +00:00 committed by Alexandre Julliard
parent 9b386b7347
commit 41716ce9c1
2 changed files with 107 additions and 33 deletions
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124
dlls/comctl32/tooltips.c
View File

@ -130,6 +130,12 @@ typedef struct
#define TOOLTIPS_GetInfoPtr(hWindow) ((TOOLTIPS_INFO *)GetWindowLongA (hWindow, 0))
/* offsets from window edge to start of text */
#define NORMAL_TEXT_MARGIN 2
#define BALLOON_TEXT_MARGIN (NORMAL_TEXT_MARGIN+10)
/* value used for CreateRoundRectRgn that specifies how much
* each corner is curved */
#define BALLOON_ROUNDEDNESS 20
LRESULT CALLBACK
TOOLTIPS_SubclassProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam, UINT_PTR uId, DWORD_PTR dwRef);
@ -144,6 +150,8 @@ TOOLTIPS_Refresh (HWND hwnd, HDC hdc)
HFONT hOldFont;
HBRUSH hBrush;
UINT uFlags = DT_EXTERNALLEADING;
HRGN hRgn = NULL;
DWORD dwStyle = GetWindowLongW(hwnd, GWL_STYLE);
if (infoPtr->nMaxTipWidth > -1)
uFlags |= DT_WORDBREAK;
@ -151,25 +159,63 @@ TOOLTIPS_Refresh (HWND hwnd, HDC hdc)
uFlags |= DT_NOPREFIX;
GetClientRect (hwnd, &rc);
/* fill the background */
hBrush = CreateSolidBrush(infoPtr->clrBk);
FillRect (hdc, &rc, hBrush);
if (dwStyle & TTS_BALLOON)
{
/* create a region to store result into */
hRgn = CreateRectRgn(0, 0, 0, 0);
GetWindowRgn(hwnd, hRgn);
/* fill the background */
FillRgn(hdc, hRgn, hBrush);
DeleteObject(hBrush);
hBrush = NULL;
/* calculate text rectangle */
rc.left += (2 + infoPtr->rcMargin.left);
rc.top += (2 + infoPtr->rcMargin.top);
rc.right -= (2 + infoPtr->rcMargin.right);
rc.bottom -= (2 + infoPtr->rcMargin.bottom);
rc.left += (BALLOON_TEXT_MARGIN + infoPtr->rcMargin.left);
rc.top += (BALLOON_TEXT_MARGIN + infoPtr->rcMargin.top);
rc.right -= (BALLOON_TEXT_MARGIN + infoPtr->rcMargin.right);
rc.bottom -= (BALLOON_TEXT_MARGIN + infoPtr->rcMargin.bottom);
}
else
{
/* fill the background */
FillRect(hdc, &rc, hBrush);
DeleteObject(hBrush);
hBrush = NULL;
/* draw text */
/* calculate text rectangle */
rc.left += (NORMAL_TEXT_MARGIN + infoPtr->rcMargin.left);
rc.top += (NORMAL_TEXT_MARGIN + infoPtr->rcMargin.top);
rc.right -= (NORMAL_TEXT_MARGIN + infoPtr->rcMargin.right);
rc.bottom -= (NORMAL_TEXT_MARGIN + infoPtr->rcMargin.bottom);
}
/* already drawn the background; don't need to draw it again
* when drawing text */
oldBkMode = SetBkMode (hdc, TRANSPARENT);
SetTextColor (hdc, infoPtr->clrText);
hOldFont = SelectObject (hdc, infoPtr->hFont);
/* draw text */
DrawTextW (hdc, infoPtr->szTipText, -1, &rc, uFlags);
/* be polite and reset the things we changed in the dc */
SelectObject (hdc, hOldFont);
if (oldBkMode != TRANSPARENT)
SetBkMode (hdc, oldBkMode);
if (dwStyle & TTS_BALLOON)
{
/* frame region because default window proc doesn't do it */
INT width = GetSystemMetrics(SM_CXDLGFRAME) - GetSystemMetrics(SM_CXEDGE);
INT height = GetSystemMetrics(SM_CYDLGFRAME) - GetSystemMetrics(SM_CYEDGE);
hBrush = GetSysColorBrush(COLOR_WINDOWFRAME);
FrameRgn(hdc, hRgn, hBrush, width, height);
}
if (hRgn)
DeleteObject(hRgn);
}
static void TOOLTIPS_GetDispInfoA(HWND hwnd, TOOLTIPS_INFO *infoPtr, TTTOOL_INFO *toolPtr)
@ -322,11 +368,21 @@ TOOLTIPS_CalcTipSize (HWND hwnd, TOOLTIPS_INFO *infoPtr, LPSIZE lpSize)
SelectObject (hdc, hOldFont);
ReleaseDC (hwnd, hdc);
lpSize->cx = rc.right - rc.left + 4 +
if (GetWindowLongW(hwnd, GWL_STYLE) & TTS_BALLOON)
{
lpSize->cx = rc.right - rc.left + 2*BALLOON_TEXT_MARGIN +
infoPtr->rcMargin.left + infoPtr->rcMargin.right;
lpSize->cy = rc.bottom - rc.top + 4 +
lpSize->cy = rc.bottom - rc.top + 2*BALLOON_TEXT_MARGIN +
infoPtr->rcMargin.bottom + infoPtr->rcMargin.top;
}
else
{
lpSize->cx = rc.right - rc.left + 2*NORMAL_TEXT_MARGIN +
infoPtr->rcMargin.left + infoPtr->rcMargin.right;
lpSize->cy = rc.bottom - rc.top + 2*NORMAL_TEXT_MARGIN +
infoPtr->rcMargin.bottom + infoPtr->rcMargin.top;
}
}
static VOID
@ -412,6 +468,18 @@ TOOLTIPS_Show (HWND hwnd, TOOLTIPS_INFO *infoPtr)
AdjustWindowRectEx (&rect, GetWindowLongA (hwnd, GWL_STYLE),
FALSE, GetWindowLongA (hwnd, GWL_EXSTYLE));
if (GetWindowLongW(hwnd, GWL_STYLE) & TTS_BALLOON)
{
HRGN hRgn;
/* FIXME: need to add pointy bit using CreatePolyRgn & CombinRgn */
hRgn = CreateRoundRectRgn(0, 0, rect.right - rect.left, rect.bottom - rect.top, BALLOON_ROUNDEDNESS, BALLOON_ROUNDEDNESS);
SetWindowRgn(hwnd, hRgn, FALSE);
/* we don't free the region handle as the system deletes it when
* it is no longer needed */
}
SetWindowPos (hwnd, HWND_TOP, rect.left, rect.top,
rect.right - rect.left, rect.bottom - rect.top,
SWP_SHOWWINDOW | SWP_NOACTIVATE);
@ -531,6 +599,18 @@ TOOLTIPS_TrackShow (HWND hwnd, TOOLTIPS_INFO *infoPtr)
AdjustWindowRectEx (&rect, GetWindowLongA (hwnd, GWL_STYLE),
FALSE, GetWindowLongA (hwnd, GWL_EXSTYLE));
if (GetWindowLongW(hwnd, GWL_STYLE) & TTS_BALLOON)
{
HRGN hRgn;
/* FIXME: need to add pointy bit using CreatePolyRgn & CombinRgn */
hRgn = CreateRoundRectRgn(0, 0, rect.right - rect.left, rect.bottom - rect.top, BALLOON_ROUNDEDNESS, BALLOON_ROUNDEDNESS);
SetWindowRgn(hwnd, hRgn, FALSE);
/* we don't free the region handle as the system deletes it when
* it is no longer needed */
}
SetWindowPos (hwnd, HWND_TOP, rect.left, rect.top,
rect.right - rect.left, rect.bottom - rect.top,
SWP_SHOWWINDOW | SWP_NOACTIVATE );
@ -2024,22 +2104,6 @@ TOOLTIPS_Destroy (HWND hwnd, WPARAM wParam, LPARAM lParam)
}
static LRESULT
TOOLTIPS_EraseBackground (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
TOOLTIPS_INFO *infoPtr = TOOLTIPS_GetInfoPtr (hwnd);
RECT rect;
HBRUSH hBrush;
hBrush = CreateSolidBrush (infoPtr->clrBk);
GetClientRect (hwnd, &rect);
FillRect ((HDC)wParam, &rect, hBrush);
DeleteObject (hBrush);
return FALSE;
}
static LRESULT
TOOLTIPS_GetFont (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
@ -2068,6 +2132,11 @@ TOOLTIPS_NCCreate (HWND hwnd, WPARAM wParam, LPARAM lParam)
dwStyle &= 0x0000FFFF;
dwStyle |= (WS_POPUP | WS_BORDER | WS_CLIPSIBLINGS);
/* WS_BORDER only draws a border round the window rect, not the
* window region, therefore it is useless to us in balloon mode */
if (dwStyle & TTS_BALLOON) dwStyle &= ~WS_BORDER;
SetWindowLongA (hwnd, GWL_STYLE, dwStyle);
dwExStyle |= WS_EX_TOOLWINDOW;
@ -2405,7 +2474,8 @@ TOOLTIPS_WindowProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
return TOOLTIPS_Destroy (hwnd, wParam, lParam);
case WM_ERASEBKGND:
return TOOLTIPS_EraseBackground (hwnd, wParam, lParam);
/* we draw the background in WM_PAINT */
return 0;
case WM_GETFONT:
return TOOLTIPS_GetFont (hwnd, wParam, lParam);

4
include/commctrl.h
View File

@ -1460,6 +1460,10 @@ static const WCHAR TOOLTIPS_CLASSW[] = { 't','o','o','l','t','i','p','s','_',
#define TTS_ALWAYSTIP 0x01
#define TTS_NOPREFIX 0x02
#define TTS_NOANIMATE 0x10
#define TTS_NOFADE 0x20
#define TTS_BALLOON 0x40
#define TTS_CLOSE 0x80
#define TTF_IDISHWND 0x0001
#define TTF_CENTERTIP 0x0002