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comctl32: Support themed push buttons.

This commit is contained in:
Reece Dunn 2008-11-05 08:39:18 +00:00 committed by Alexandre Julliard
parent f21096ad01
commit 1f9cc20466
1 changed files with 117 additions and 21 deletions
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138
dlls/comctl32/theme_button.c
View File

@ -36,47 +36,140 @@ WINE_DEFAULT_DEBUG_CHANNEL(themingbutton);
#define BUTTON_TYPE 0x0f /* bit mask for the available button types */
typedef void (*pfThemedPaint)(HTHEME theme, HWND hwnd, HDC hdc);
static void GB_draw(HTHEME theme, HWND hwnd, HDC hDC)
/* These are indices into a states array to determine the theme state for a given theme part. */
typedef enum
{
STATE_NORMAL,
STATE_DISABLED,
STATE_HOT,
STATE_PRESSED,
STATE_DEFAULTED
} ButtonState;
typedef void (*pfThemedPaint)(HTHEME theme, HWND hwnd, HDC hdc, ButtonState drawState, UINT dtFlags);
static UINT get_drawtext_flags(DWORD style, DWORD ex_style)
{
UINT flags = 0;
if (style & BS_PUSHLIKE)
style &= ~BUTTON_TYPE;
if (!(style & BS_MULTILINE))
flags |= DT_SINGLELINE;
else
flags |= DT_WORDBREAK;
switch (style & BS_CENTER)
{
case BS_LEFT: flags |= DT_LEFT; break;
case BS_RIGHT: flags |= DT_RIGHT; break;
case BS_CENTER: flags |= DT_CENTER; break;
default:
flags |= ((style & BUTTON_TYPE) <= BS_DEFPUSHBUTTON)
? DT_CENTER : DT_LEFT;
}
if (ex_style & WS_EX_RIGHT)
flags = DT_RIGHT | (flags & ~(DT_LEFT | DT_CENTER));
if ((style & BUTTON_TYPE) != BS_GROUPBOX)
{
switch (style & BS_VCENTER)
{
case BS_TOP: flags |= DT_TOP; break;
case BS_BOTTOM: flags |= DT_BOTTOM; break;
case BS_VCENTER: /* fall through */
default: flags |= DT_VCENTER; break;
}
}
else
/* GroupBox's text is always single line and is top aligned. */
flags |= DT_SINGLELINE | DT_TOP;
return flags;
}
static inline WCHAR *get_button_text(HWND hwnd)
{
INT len = 512;
WCHAR *text;
text = HeapAlloc(GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR));
if (text) InternalGetWindowText(hwnd, text, len + 1);
return text;
}
static void PB_draw(HTHEME theme, HWND hwnd, HDC hDC, ButtonState drawState, UINT dtFlags)
{
static const int states[] = { PBS_NORMAL, PBS_DISABLED, PBS_HOT, PBS_PRESSED, PBS_DEFAULTED };
RECT bgRect, textRect;
SIZE textExtent;
HFONT font = (HFONT)SendMessageW(hwnd, WM_GETFONT, 0, 0);
HFONT hPrevFont = font ? SelectObject(hDC, font) : NULL;
int state = IsWindowEnabled(hwnd) ? GBS_NORMAL : GBS_DISABLED;
WCHAR text[MAX_PATH];
int len = MAX_PATH;
int state = states[ drawState ];
WCHAR *text = get_button_text(hwnd);
GetClientRect(hwnd, &bgRect);
GetThemeBackgroundContentRect(theme, hDC, BP_PUSHBUTTON, state, &bgRect, &textRect);
if (IsThemeBackgroundPartiallyTransparent(theme, BP_PUSHBUTTON, state))
DrawThemeParentBackground(hwnd, hDC, NULL);
DrawThemeBackground(theme, hDC, BP_PUSHBUTTON, state, &bgRect, NULL);
if (text)
{
DrawThemeText(theme, hDC, BP_PUSHBUTTON, state, text, lstrlenW(text), dtFlags, 0, &textRect);
HeapFree(GetProcessHeap(), 0, text);
}
if (hPrevFont) SelectObject(hDC, hPrevFont);
}
static void GB_draw(HTHEME theme, HWND hwnd, HDC hDC, ButtonState drawState, UINT dtFlags)
{
static const int states[] = { GBS_NORMAL, GBS_DISABLED, GBS_NORMAL, GBS_NORMAL, GBS_NORMAL };
RECT bgRect, textRect;
HFONT font = (HFONT)SendMessageW(hwnd, WM_GETFONT, 0, 0);
HFONT hPrevFont = font ? SelectObject(hDC, font) : NULL;
int state = states[ drawState ];
WCHAR *text = get_button_text(hwnd);
GetClientRect(hwnd, &bgRect);
textRect = bgRect;
len = GetWindowTextW(hwnd, text, len);
GetTextExtentPoint32W(hDC, text, len, &textExtent);
bgRect.top += (textExtent.cy / 2);
textRect.left += 10;
textRect.bottom = textRect.top + textExtent.cy;
textRect.right = textRect.left + textExtent.cx + 4;
if (text)
{
SIZE textExtent;
GetTextExtentPoint32W(hDC, text, lstrlenW(text), &textExtent);
bgRect.top += (textExtent.cy / 2);
textRect.left += 10;
textRect.bottom = textRect.top + textExtent.cy;
textRect.right = textRect.left + textExtent.cx + 4;
}
ExcludeClipRect(hDC, textRect.left, textRect.top, textRect.right, textRect.bottom);
if (IsThemeBackgroundPartiallyTransparent(theme, BP_GROUPBOX, state))
DrawThemeParentBackground(hwnd, hDC, NULL);
DrawThemeBackground(theme, hDC, BP_GROUPBOX, state, &bgRect, NULL);
SelectClipRgn(hDC, NULL);
textRect.left += 2;
textRect.right -= 2;
DrawThemeText(theme, hDC, BP_GROUPBOX, state, text, len, 0, 0, &textRect);
if (text)
{
textRect.left += 2;
textRect.right -= 2;
DrawThemeText(theme, hDC, BP_GROUPBOX, state, text, lstrlenW(text), 0, 0, &textRect);
HeapFree(GetProcessHeap(), 0, text);
}
if (hPrevFont) SelectObject(hDC, hPrevFont);
}
static const pfThemedPaint btnThemedPaintFunc[BUTTON_TYPE + 1] =
{
NULL, /* BS_PUSHBUTTON */
NULL, /* BS_DEFPUSHBUTTON */
PB_draw, /* BS_PUSHBUTTON */
PB_draw, /* BS_DEFPUSHBUTTON */
NULL, /* BS_CHECKBOX */
NULL, /* BS_AUTOCHECKBOX */
NULL, /* BS_RADIOBUTTON */
@ -98,12 +191,15 @@ static BOOL BUTTON_Paint(HTHEME theme, HWND hwnd, HDC hParamDC)
PAINTSTRUCT ps;
HDC hDC;
DWORD dwStyle = GetWindowLongW(hwnd, GWL_STYLE);
DWORD dwStyleEx = GetWindowLongW(hwnd, GWL_EXSTYLE);
UINT dtFlags = get_drawtext_flags(dwStyle, dwStyleEx);
ButtonState drawState = IsWindowEnabled(hwnd) ? STATE_NORMAL : STATE_DISABLED;
pfThemedPaint paint = btnThemedPaintFunc[ dwStyle & BUTTON_TYPE ];
if (paint)
{
hDC = hParamDC ? hParamDC : BeginPaint(hwnd, &ps);
paint(theme, hwnd, hDC);
paint(theme, hwnd, hDC, drawState, dtFlags);
if (!hParamDC) EndPaint(hwnd, &ps);
return TRUE;
}