[gedmurphy] 38823: add new file

Author: gedmurphy
Date: Sat Jan 17 10:48:52 2009
New Revision: 38823

URL: http://svn.reactos.org/svn/reactos?rev=38823&view=rev
Log:
add new file

Added:
    trunk/reactos/dll/win32/comctl32/theme_button.c   (with props)

Added: trunk/reactos/dll/win32/comctl32/theme_button.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/comctl32/theme_b…
==============================================================================
--- trunk/reactos/dll/win32/comctl32/theme_button.c (added)
+++ trunk/reactos/dll/win32/comctl32/theme_button.c [iso-8859-1] Sat Jan 17 10:48:52 2009
@@ -1,0 +1,317 @@
+/*
+ * 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 <stdarg.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include "windef.h"
+#include "winbase.h"
+#include "wingdi.h"
+#include "winuser.h"
+#include "uxtheme.h"
+#include "tmschema.h"
+#include "comctl32.h"
+
+#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_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;
+    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);
+    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 CB_draw(HTHEME theme, HWND hwnd, HDC hDC, ButtonState drawState, UINT
dtFlags)
+{
+    static const int cb_states[3][5] =
+    {
+        { CBS_UNCHECKEDNORMAL, CBS_UNCHECKEDDISABLED, CBS_UNCHECKEDHOT,
CBS_UNCHECKEDPRESSED, CBS_UNCHECKEDNORMAL },
+        { CBS_CHECKEDNORMAL, CBS_CHECKEDDISABLED, CBS_CHECKEDHOT, CBS_CHECKEDPRESSED,
CBS_CHECKEDNORMAL },
+        { CBS_MIXEDNORMAL, CBS_MIXEDDISABLED, CBS_MIXEDHOT, CBS_MIXEDPRESSED,
CBS_MIXEDNORMAL }
+    };
+
+    static const int rb_states[2][5] =
+    {
+        { RBS_UNCHECKEDNORMAL, RBS_UNCHECKEDDISABLED, RBS_UNCHECKEDHOT,
RBS_UNCHECKEDPRESSED, RBS_UNCHECKEDNORMAL },
+        { RBS_CHECKEDNORMAL, RBS_CHECKEDDISABLED, RBS_CHECKEDHOT, RBS_CHECKEDPRESSED,
RBS_CHECKEDNORMAL }
+    };
+
+    static const int cb_size = 13;
+
+    RECT bgRect, textRect;
+    HFONT font = (HFONT)SendMessageW(hwnd, WM_GETFONT, 0, 0);
+    HFONT hPrevFont = font ? SelectObject(hDC, font) : NULL;
+    LRESULT checkState = SendMessageW(hwnd, BM_GETCHECK, 0, 0);
+    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 = get_button_text(hwnd);
+
+    GetClientRect(hwnd, &bgRect);
+    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 - cb_size) / 2;
+
+    /* adjust for the check/radio marker */
+    bgRect.bottom = bgRect.top + cb_size;
+    bgRect.right = bgRect.left + cb_size;
+    textRect.left = bgRect.right + 6;
+
+    if (IsThemeBackgroundPartiallyTransparent(theme, part, state))
+        DrawThemeParentBackground(hwnd, hDC, NULL);
+    DrawThemeBackground(theme, hDC, part, state, &bgRect, NULL);
+    if (text)
+    {
+        DrawThemeText(theme, hDC, part, 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, contentRect;
+    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;
+
+    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);
+
+    if (IsThemeBackgroundPartiallyTransparent(theme, BP_GROUPBOX, state))
+        DrawThemeParentBackground(hwnd, hDC, NULL);
+    DrawThemeBackground(theme, hDC, BP_GROUPBOX, state, &bgRect, NULL);
+
+    SelectClipRgn(hDC, NULL);
+
+    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] =
+{
+    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 */
+};
+
+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, drawState, dtFlags);
+        if (!hParamDC) EndPaint(hwnd, &ps);
+        return TRUE;
+    }
+
+    return FALSE; /* Delegate drawing to the non-themed code. */
+}
+
+/**********************************************************************
+ * The button control subclass window proc.
+ */
+LRESULT CALLBACK THEMING_ButtonSubclassProc(HWND hwnd, UINT msg,
+                                            WPARAM wParam, LPARAM lParam,
+                                            ULONG_PTR dwRefData)
+{
+    const WCHAR* themeClass = WC_BUTTONW;
+    HTHEME theme;
+    LRESULT result;
+
+    switch (msg)
+    {
+    case WM_CREATE:
+        result = THEMING_CallOriginalClass(hwnd, msg, wParam, lParam);
+        OpenThemeData(hwnd, themeClass);
+        return result;
+
+    case WM_DESTROY:
+        theme = GetWindowTheme(hwnd);
+        CloseThemeData (theme);
+        return THEMING_CallOriginalClass(hwnd, msg, wParam, lParam);
+
+    case WM_THEMECHANGED:
+        theme = GetWindowTheme(hwnd);
+        CloseThemeData (theme);
+        OpenThemeData(hwnd, themeClass);
+        break;
+
+    case WM_SYSCOLORCHANGE:
+        theme = GetWindowTheme(hwnd);
+	if (!theme) return THEMING_CallOriginalClass(hwnd, msg, wParam, lParam);
+        /* Do nothing. When themed, a WM_THEMECHANGED will be received, too,
+	 * which will do the repaint. */
+        break;
+
+    case WM_PAINT:
+        theme = GetWindowTheme(hwnd);
+        if (theme && BUTTON_Paint(theme, hwnd, (HDC)wParam))
+            return 0;
+        else
+            return THEMING_CallOriginalClass(hwnd, msg, wParam, lParam);
+
+    case WM_ENABLE:
+        theme = GetWindowTheme(hwnd);
+        if (theme) RedrawWindow(hwnd, NULL, NULL,
+                                RDW_FRAME | RDW_INVALIDATE | RDW_UPDATENOW);
+        return THEMING_CallOriginalClass(hwnd, msg, wParam, lParam);
+
+    default:
+	/* Call old proc */
+	return THEMING_CallOriginalClass(hwnd, msg, wParam, lParam);
+    }
+    return 0;
+}

Propchange: trunk/reactos/dll/win32/comctl32/theme_button.c
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