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reactos/dll/win32/comctl32/theme_button.c

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/*
* Theming - Button control
*
* Copyright (c) 2008 by Reece H. Dunn
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
*/
#include "comctl32.h"
WINE_DEFAULT_DEBUG_CHANNEL(theme_button);
#define BUTTON_TYPE 0x0f /* bit mask for the available button types */
/* These are indices into a states array to determine the theme state for a given theme part. */
typedef enum
{
STATE_NORMAL,
STATE_HOT,
STATE_PRESSED,
STATE_DISABLED,
STATE_DEFAULTED
} ButtonState;
#ifdef __REACTOS__ /* r73885 */
typedef void (*pfThemedPaint)(HTHEME theme, HWND hwnd, HDC hdc, ButtonState drawState, UINT dtFlags, BOOL focused, LPARAM prfFlag);
#else
typedef void (*pfThemedPaint)(HTHEME theme, HWND hwnd, HDC hdc, ButtonState drawState, UINT dtFlags, BOOL focused);
#endif
#ifdef __REACTOS__ /* r73885 & r73907 */
static inline LONG get_button_state( HWND hwnd )
{
return _GetButtonData(hwnd)->state;
}
static inline HFONT get_button_font( HWND hwnd )
{
return (HFONT)_GetButtonData(hwnd)->font;
}
static inline LONG_PTR get_button_image(HWND hwnd)
{
return _GetButtonData(hwnd)->image;
}
BOOL BUTTON_DrawIml(HDC hdc, BUTTON_IMAGELIST *pimlData, RECT *prc, BOOL bOnlyCalc, int index);
DWORD BUTTON_SendCustomDraw(HWND hwnd, HDC hDC, DWORD dwDrawStage, RECT* prc);
#endif
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, BOOL focused, LPARAM prfFlag)
{
static const int states[] = { PBS_NORMAL, PBS_HOT, PBS_PRESSED, PBS_DISABLED, PBS_DEFAULTED };
RECT bgRect, textRect;
HFONT font = get_button_font(hwnd);
HFONT hPrevFont = font ? SelectObject(hDC, font) : NULL;
int state = states[ drawState ];
WCHAR *text;
PBUTTON_DATA pdata = _GetButtonData(hwnd);
HWND parent;
DWORD cdrf;
GetClientRect(hwnd, &bgRect);
GetThemeBackgroundContentRect(theme, hDC, BP_PUSHBUTTON, state, &bgRect, &textRect);
if (prfFlag == 0)
{
if (IsThemeBackgroundPartiallyTransparent(theme, BP_PUSHBUTTON, state))
DrawThemeParentBackground(hwnd, hDC, NULL);
}
parent = GetParent(hwnd);
if (!parent) parent = hwnd;
SendMessageW( parent, WM_CTLCOLORBTN, (WPARAM)hDC, (LPARAM)hwnd );
cdrf = BUTTON_SendCustomDraw(hwnd, hDC, CDDS_PREERASE, &bgRect);
if (cdrf == CDRF_SKIPDEFAULT)
goto cleanup;
DrawThemeBackground(theme, hDC, BP_PUSHBUTTON, state, &bgRect, NULL);
if (cdrf == CDRF_NOTIFYPOSTERASE)
BUTTON_SendCustomDraw(hwnd, hDC, CDDS_POSTERASE, &bgRect);
cdrf = BUTTON_SendCustomDraw(hwnd, hDC, CDDS_PREPAINT, &bgRect);
if (cdrf == CDRF_SKIPDEFAULT)
goto cleanup;
BUTTON_DrawIml(hDC, &pdata->imlData, &textRect, FALSE, drawState);
text = get_button_text(hwnd);
if (text)
{
DrawThemeText(theme, hDC, BP_PUSHBUTTON, state, text, lstrlenW(text), dtFlags, 0, &textRect);
HeapFree(GetProcessHeap(), 0, text);
}
if (focused)
{
MARGINS margins;
RECT focusRect = bgRect;
GetThemeMargins(theme, hDC, BP_PUSHBUTTON, state, TMT_CONTENTMARGINS, NULL, &margins);
focusRect.left += margins.cxLeftWidth;
focusRect.top += margins.cyTopHeight;
focusRect.right -= margins.cxRightWidth;
focusRect.bottom -= margins.cyBottomHeight;
DrawFocusRect( hDC, &focusRect );
}
if (cdrf == CDRF_NOTIFYPOSTPAINT)
BUTTON_SendCustomDraw(hwnd, hDC, CDDS_POSTPAINT, &bgRect);
cleanup:
if (hPrevFont) SelectObject(hDC, hPrevFont);
}
static void CB_draw(HTHEME theme, HWND hwnd, HDC hDC, ButtonState drawState, UINT dtFlags, BOOL focused, LPARAM prfFlag)
{
static const int cb_states[3][5] =
{
{ CBS_UNCHECKEDNORMAL, CBS_UNCHECKEDHOT, CBS_UNCHECKEDPRESSED, CBS_UNCHECKEDDISABLED, CBS_UNCHECKEDNORMAL },
{ CBS_CHECKEDNORMAL, CBS_CHECKEDHOT, CBS_CHECKEDPRESSED, CBS_CHECKEDDISABLED, CBS_CHECKEDNORMAL },
{ CBS_MIXEDNORMAL, CBS_MIXEDHOT, CBS_MIXEDPRESSED, CBS_MIXEDDISABLED, CBS_MIXEDNORMAL }
};
static const int rb_states[2][5] =
{
{ RBS_UNCHECKEDNORMAL, RBS_UNCHECKEDHOT, RBS_UNCHECKEDPRESSED, RBS_UNCHECKEDDISABLED, RBS_UNCHECKEDNORMAL },
{ RBS_CHECKEDNORMAL, RBS_CHECKEDHOT, RBS_CHECKEDPRESSED, RBS_CHECKEDDISABLED, RBS_CHECKEDNORMAL }
};
SIZE sz;
RECT bgRect, textRect;
HFONT font, hPrevFont = NULL;
LRESULT checkState = get_button_state(hwnd) & 3;
DWORD dwStyle = GetWindowLongW(hwnd, GWL_STYLE);
int part = ((dwStyle & BUTTON_TYPE) == BS_RADIOBUTTON) || ((dwStyle & BUTTON_TYPE) == BS_AUTORADIOBUTTON)
? BP_RADIOBUTTON
: BP_CHECKBOX;
int state = (part == BP_CHECKBOX)
? cb_states[ checkState ][ drawState ]
: rb_states[ checkState ][ drawState ];
WCHAR *text;
LOGFONTW lf;
BOOL created_font = FALSE;
HWND parent;
HBRUSH hBrush;
DWORD cdrf;
HRESULT hr = GetThemeFont(theme, hDC, part, state, TMT_FONT, &lf);
if (SUCCEEDED(hr)) {
font = CreateFontIndirectW(&lf);
if (!font)
TRACE("Failed to create font\n");
else {
TRACE("font = %s\n", debugstr_w(lf.lfFaceName));
hPrevFont = SelectObject(hDC, font);
created_font = TRUE;
}
} else {
font = get_button_font(hwnd);
hPrevFont = SelectObject(hDC, font);
}
if (FAILED(GetThemePartSize(theme, hDC, part, state, NULL, TS_DRAW, &sz)))
sz.cx = sz.cy = 13;
GetClientRect(hwnd, &bgRect);
if (prfFlag == 0)
{
DrawThemeParentBackground(hwnd, hDC, NULL);
}
parent = GetParent(hwnd);
if (!parent) parent = hwnd;
hBrush = (HBRUSH)SendMessageW(parent, WM_CTLCOLORSTATIC,
(WPARAM)hDC, (LPARAM)hwnd);
if (!hBrush) /* did the app forget to call defwindowproc ? */
hBrush = (HBRUSH)DefWindowProcW(parent, WM_CTLCOLORSTATIC,
(WPARAM)hDC, (LPARAM)hwnd );
FillRect( hDC, &bgRect, hBrush );
cdrf = BUTTON_SendCustomDraw(hwnd, hDC, CDDS_PREERASE, &bgRect);
if (cdrf == CDRF_SKIPDEFAULT)
goto cleanup;
GetThemeBackgroundContentRect(theme, hDC, part, state, &bgRect, &textRect);
if (dtFlags & DT_SINGLELINE) /* Center the checkbox / radio button to the text. */
bgRect.top = bgRect.top + (textRect.bottom - textRect.top - sz.cy) / 2;
/* adjust for the check/radio marker */
bgRect.bottom = bgRect.top + sz.cy;
bgRect.right = bgRect.left + sz.cx;
textRect.left = bgRect.right + 6;
DrawThemeBackground(theme, hDC, part, state, &bgRect, NULL);
if (cdrf == CDRF_NOTIFYPOSTERASE)
BUTTON_SendCustomDraw(hwnd, hDC, CDDS_POSTERASE, &bgRect);
cdrf = BUTTON_SendCustomDraw(hwnd, hDC, CDDS_PREPAINT, &bgRect);
if (cdrf == CDRF_SKIPDEFAULT)
goto cleanup;
text = get_button_text(hwnd);
if (text)
{
DrawThemeText(theme, hDC, part, state, text, lstrlenW(text), dtFlags, 0, &textRect);
if (focused)
{
RECT focusRect;
focusRect = textRect;
DrawTextW(hDC, text, lstrlenW(text), &focusRect, dtFlags | DT_CALCRECT);
if (focusRect.right < textRect.right) focusRect.right++;
focusRect.bottom = textRect.bottom;
DrawFocusRect( hDC, &focusRect );
}
HeapFree(GetProcessHeap(), 0, text);
}
if (cdrf == CDRF_NOTIFYPOSTPAINT)
BUTTON_SendCustomDraw(hwnd, hDC, CDDS_POSTPAINT, &bgRect);
cleanup:
if (created_font) DeleteObject(font);
if (hPrevFont) SelectObject(hDC, hPrevFont);
}
#ifdef __REACTOS__ /* r73885 */
static void GB_draw(HTHEME theme, HWND hwnd, HDC hDC, ButtonState drawState, UINT dtFlags, BOOL focused, LPARAM prfFlag)
#else
static void GB_draw(HTHEME theme, HWND hwnd, HDC hDC, ButtonState drawState, UINT dtFlags, BOOL focused)
#endif
{
static const int states[] = { GBS_NORMAL, GBS_NORMAL, GBS_NORMAL, GBS_DISABLED, GBS_NORMAL };
RECT bgRect, textRect, contentRect;
int state = states[ drawState ];
WCHAR *text = get_button_text(hwnd);
LOGFONTW lf;
HFONT font, hPrevFont = NULL;
BOOL created_font = FALSE;
#ifdef __REACTOS__ /* r74406 */
HWND parent;
HBRUSH hBrush;
RECT clientRect;
#endif
HRESULT hr = GetThemeFont(theme, hDC, BP_GROUPBOX, state, TMT_FONT, &lf);
if (SUCCEEDED(hr)) {
font = CreateFontIndirectW(&lf);
if (!font)
TRACE("Failed to create font\n");
else {
hPrevFont = SelectObject(hDC, font);
created_font = TRUE;
}
} else {
#ifdef __REACTOS__ /* r73885 */
font = get_button_font(hwnd);
#else
font = (HFONT)SendMessageW(hwnd, WM_GETFONT, 0, 0);
#endif
hPrevFont = SelectObject(hDC, font);
}
GetClientRect(hwnd, &bgRect);
textRect = bgRect;
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);
}
GetThemeBackgroundContentRect(theme, hDC, BP_GROUPBOX, state, &bgRect, &contentRect);
ExcludeClipRect(hDC, contentRect.left, contentRect.top, contentRect.right, contentRect.bottom);
#ifdef __REACTOS__ /* r73885 & r74149 */
if (prfFlag == 0)
{
if (IsThemeBackgroundPartiallyTransparent(theme, BP_GROUPBOX, state))
DrawThemeParentBackground(hwnd, hDC, NULL);
}
#else
if (IsThemeBackgroundPartiallyTransparent(theme, BP_GROUPBOX, state))
DrawThemeParentBackground(hwnd, hDC, NULL);
#endif
#ifdef __REACTOS__ /* r74406 */
parent = GetParent(hwnd);
if (!parent) parent = hwnd;
hBrush = (HBRUSH)SendMessageW(parent, WM_CTLCOLORSTATIC,
(WPARAM)hDC, (LPARAM)hwnd);
if (!hBrush) /* did the app forget to call defwindowproc ? */
hBrush = (HBRUSH)DefWindowProcW(parent, WM_CTLCOLORSTATIC,
(WPARAM)hDC, (LPARAM)hwnd );
GetClientRect(hwnd, &clientRect);
FillRect( hDC, &clientRect, hBrush );
#endif
DrawThemeBackground(theme, hDC, BP_GROUPBOX, state, &bgRect, NULL);
SelectClipRgn(hDC, NULL);
if (text)
{
InflateRect(&textRect, -2, 0);
DrawThemeText(theme, hDC, BP_GROUPBOX, state, text, lstrlenW(text), 0, 0, &textRect);
HeapFree(GetProcessHeap(), 0, text);
}
if (created_font) DeleteObject(font);
if (hPrevFont) SelectObject(hDC, hPrevFont);
}
static const pfThemedPaint btnThemedPaintFunc[BUTTON_TYPE + 1] =
{
PB_draw, /* BS_PUSHBUTTON */
PB_draw, /* BS_DEFPUSHBUTTON */
CB_draw, /* BS_CHECKBOX */
CB_draw, /* BS_AUTOCHECKBOX */
CB_draw, /* BS_RADIOBUTTON */
CB_draw, /* BS_3STATE */
CB_draw, /* BS_AUTO3STATE */
GB_draw, /* BS_GROUPBOX */
NULL, /* BS_USERBUTTON */
CB_draw, /* BS_AUTORADIOBUTTON */
NULL, /* Not defined */
NULL, /* BS_OWNERDRAW */
NULL, /* Not defined */
NULL, /* Not defined */
NULL, /* Not defined */
NULL, /* Not defined */
};
BOOL BUTTON_PaintWithTheme(HTHEME theme, HWND hwnd, HDC hParamDC, LPARAM prfFlag)
{
DWORD dwStyle;
DWORD dwStyleEx;
DWORD type;
UINT dtFlags;
int state;
ButtonState drawState;
pfThemedPaint paint;
/* Don't draw with themes on a button with BS_ICON or BS_BITMAP */
if (get_button_image(hwnd) != 0)
return FALSE;
dwStyle = GetWindowLongW(hwnd, GWL_STYLE);
type = dwStyle & BUTTON_TYPE;
if (type != BS_PUSHBUTTON && type != BS_DEFPUSHBUTTON && (dwStyle & BS_PUSHLIKE))
type = BS_PUSHBUTTON;
paint = btnThemedPaintFunc[type];
if (!paint)
return FALSE;
dwStyleEx = GetWindowLongW(hwnd, GWL_EXSTYLE);
dtFlags = get_drawtext_flags(dwStyle, dwStyleEx);
state = get_button_state(hwnd);
if(dwStyle & WS_DISABLED)
drawState = STATE_DISABLED;
else if(state & BST_PUSHED)
drawState = STATE_PRESSED;
else if ((dwStyle & BS_PUSHLIKE) && (state & (BST_CHECKED|BST_INDETERMINATE)))
drawState = STATE_PRESSED;
else if(state & BST_HOT)
drawState = STATE_HOT;
else if((state & BST_FOCUS) || (dwStyle & BS_DEFPUSHBUTTON))
drawState = STATE_DEFAULTED;
else
drawState = STATE_NORMAL;
if (paint == PB_draw || paint == CB_draw)
{
HDC hdc;
HBITMAP hbmp;
RECT rc;
GetClientRect(hwnd, &rc);
hdc = CreateCompatibleDC(hParamDC);
hbmp = CreateCompatibleBitmap(hParamDC, rc.right, rc.bottom);
if (hdc && hbmp)
{
SelectObject(hdc, hbmp);
paint(theme, hwnd, hdc, drawState, dtFlags, state & BST_FOCUS, prfFlag);
BitBlt(hParamDC, 0, 0, rc.right, rc.bottom, hdc, 0, 0, SRCCOPY);
DeleteObject(hbmp);
DeleteDC(hdc);
return TRUE;
}
else
{
ERR("Failed to create DC and bitmap for double buffering\n");
if (hbmp)
DeleteObject(hbmp);
if (hdc)
DeleteDC(hdc);
}
}
paint(theme, hwnd, hParamDC, drawState, dtFlags, state & BST_FOCUS, prfFlag);
return TRUE;
}
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