--- /dev/null
+/* $Id: button.c,v 1.3 2003/06/23 10:10:51 rcampbell Exp $
+ *
+ * COPYRIGHT: See COPYING in the top level directory
+ * PROJECT: ReactOS User32
+ * PURPOSE: Button control
+ * FILE: lib/user32/controls/static.c
+ * PROGRAMER: Richard Campbell lib/user32/controls/button.c
+ * REVISION HISTORY: 2003/05/28 Created
+ * NOTES: Adapted from Wine
+ */
+
+#include "windows.h"
+#include "user32/regcontrol.h"
+#include "user32.h"
+
+#define STATE_GWL_OFFSET 0
+#define HFONT_GWL_OFFSET (sizeof(LONG))
+#define HIMAGE_GWL_OFFSET (2*sizeof(LONG))
+#define NB_EXTRA_BYTES (3*sizeof(LONG))
+
+#define BS_FLAT 0x00008000L
+
+#define BUTTON_UNCHECKED 0x00
+#define BUTTON_CHECKED 0x01
+#define BUTTON_3STATE 0x02
+#define BUTTON_HIGHLIGHTED 0x04
+#define BUTTON_HASFOCUS 0x08
+#define BUTTON_NSTATES 0x0F
+
+#define BUTTON_BTNPRESSED 0x40
+#define BUTTON_UNKNOWN2 0x20
+#define BUTTON_UNKNOWN3 0x10
+
+static UINT BUTTON_CalcLabelRect( HWND hwnd, HDC hdc, RECT *rc );
+static void PB_Paint( HWND hwnd, HDC hDC, UINT action );
+static void CB_Paint( HWND hwnd, HDC hDC, UINT action );
+static void GB_Paint( HWND hwnd, HDC hDC, UINT action );
+static void UB_Paint( HWND hwnd, HDC hDC, UINT action );
+static void OB_Paint( HWND hwnd, HDC hDC, UINT action );
+static void BUTTON_CheckAutoRadioButton( HWND hwnd );
+static LRESULT WINAPI ButtonWndProcA( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam );
+static LRESULT WINAPI ButtonWndProcW( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam );
+
+#define MAX_BTN_TYPE 12
+
+static const WORD maxCheckState[MAX_BTN_TYPE] =
+{
+ BUTTON_UNCHECKED, /* BS_PUSHBUTTON */
+ BUTTON_UNCHECKED, /* BS_DEFPUSHBUTTON */
+ BUTTON_CHECKED, /* BS_CHECKBOX */
+ BUTTON_CHECKED, /* BS_AUTOCHECKBOX */
+ BUTTON_CHECKED, /* BS_RADIOBUTTON */
+ BUTTON_3STATE, /* BS_3STATE */
+ BUTTON_3STATE, /* BS_AUTO3STATE */
+ BUTTON_UNCHECKED, /* BS_GROUPBOX */
+ BUTTON_UNCHECKED, /* BS_USERBUTTON */
+ BUTTON_CHECKED, /* BS_AUTORADIOBUTTON */
+ BUTTON_UNCHECKED, /* Not defined */
+ BUTTON_UNCHECKED /* BS_OWNERDRAW */
+};
+
+typedef void (*pfPaint)( HWND hwnd, HDC hdc, UINT action );
+
+static const pfPaint btnPaintFunc[MAX_BTN_TYPE] =
+{
+ PB_Paint, /* BS_PUSHBUTTON */
+ PB_Paint, /* BS_DEFPUSHBUTTON */
+ CB_Paint, /* BS_CHECKBOX */
+ CB_Paint, /* BS_AUTOCHECKBOX */
+ CB_Paint, /* BS_RADIOBUTTON */
+ CB_Paint, /* BS_3STATE */
+ CB_Paint, /* BS_AUTO3STATE */
+ GB_Paint, /* BS_GROUPBOX */
+ UB_Paint, /* BS_USERBUTTON */
+ CB_Paint, /* BS_AUTORADIOBUTTON */
+ NULL, /* Not defined */
+ OB_Paint /* BS_OWNERDRAW */
+};
+
+static HBITMAP hbitmapCheckBoxes = 0;
+static WORD checkBoxWidth = 0, checkBoxHeight = 0;
+
+
+/*********************************************************************
+ * button class descriptor
+ */
+const struct builtin_class_descr BUTTON_builtin_class =
+{
+ "Button", /* name */
+ CS_GLOBALCLASS | CS_DBLCLKS | CS_VREDRAW | CS_HREDRAW | CS_PARENTDC, /* style */
+ (WNDPROC) ButtonWndProcA, /* procA */
+ (WNDPROC) ButtonWndProcW, /* procW */
+ NB_EXTRA_BYTES, /* extra */
+ (LPCSTR) IDC_ARROW, /* cursor */
+ 0 /* brush */
+};
+
+HPEN STDCALL GetSysColorPen (int nIndex);
+
+inline static LONG get_button_state( HWND hwnd )
+{
+ return GetWindowLongA( hwnd, STATE_GWL_OFFSET );
+}
+
+inline static void set_button_state( HWND hwnd, LONG state )
+{
+ SetWindowLongA( hwnd, STATE_GWL_OFFSET, state );
+}
+
+inline static HFONT get_button_font( HWND hwnd )
+{
+ return (HFONT)GetWindowLongA( hwnd, HFONT_GWL_OFFSET );
+}
+
+inline static void set_button_font( HWND hwnd, HFONT font )
+{
+ SetWindowLongA( hwnd, HFONT_GWL_OFFSET, (LONG)font );
+}
+
+inline static UINT get_button_type( LONG window_style )
+{
+ return (window_style & 0x0f);
+}
+
+/* paint a button of any type */
+inline static void paint_button( HWND hwnd, LONG style, UINT action )
+{
+ if (btnPaintFunc[style] && IsWindowVisible(hwnd))
+ {
+ HDC hdc = GetDC( hwnd );
+ btnPaintFunc[style]( hwnd, hdc, action );
+ ReleaseDC( hwnd, hdc );
+ }
+}
+
+/* retrieve the button text; returned buffer must be freed by caller */
+inline static WCHAR *get_button_text( HWND hwnd )
+{
+ INT len = GetWindowTextLengthW( hwnd );
+ WCHAR *buffer = HeapAlloc( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) );
+ if (buffer) GetWindowTextW( hwnd, buffer, len + 1 );
+ return buffer;
+}
+
+/***********************************************************************
+ * ButtonWndProc_common
+ */
+static LRESULT WINAPI ButtonWndProc_common(HWND hWnd, UINT uMsg,
+ WPARAM wParam, LPARAM lParam, BOOL unicode )
+{
+ RECT rect;
+ POINT pt;
+ LONG style = GetWindowLongA( hWnd, GWL_STYLE );
+ UINT btn_type = get_button_type( style );
+ LONG state;
+ HANDLE oldHbitmap;
+
+ pt.x = LOWORD(lParam);
+ pt.y = HIWORD(lParam);
+
+ switch (uMsg)
+ {
+ case WM_GETDLGCODE:
+ switch(btn_type)
+ {
+ case BS_PUSHBUTTON: return DLGC_BUTTON | DLGC_UNDEFPUSHBUTTON;
+ case BS_DEFPUSHBUTTON: return DLGC_BUTTON | DLGC_DEFPUSHBUTTON;
+ case BS_RADIOBUTTON:
+ case BS_AUTORADIOBUTTON: return DLGC_BUTTON | DLGC_RADIOBUTTON;
+ default: return DLGC_BUTTON;
+ }
+
+ case WM_ENABLE:
+ paint_button( hWnd, btn_type, ODA_DRAWENTIRE );
+ break;
+
+ case WM_CREATE:
+ if (!hbitmapCheckBoxes)
+ {
+ BITMAP bmp;
+ hbitmapCheckBoxes = LoadBitmapW(0, MAKEINTRESOURCEW(OBM_CHECKBOXES));
+ GetObjectW( hbitmapCheckBoxes, sizeof(bmp), &bmp );
+ checkBoxWidth = bmp.bmWidth / 4;
+ checkBoxHeight = bmp.bmHeight / 3;
+ }
+ if (btn_type >= MAX_BTN_TYPE)
+ return -1; /* abort */
+ set_button_state( hWnd, BUTTON_UNCHECKED );
+ return 0;
+
+ case WM_ERASEBKGND:
+ return 1;
+
+ case WM_PAINT:
+ if (btnPaintFunc[btn_type])
+ {
+ PAINTSTRUCT ps;
+ HDC hdc = wParam ? (HDC)wParam : BeginPaint( hWnd, &ps );
+ int nOldMode = SetBkMode( hdc, OPAQUE );
+ (btnPaintFunc[btn_type])( hWnd, hdc, ODA_DRAWENTIRE );
+ SetBkMode(hdc, nOldMode); /* reset painting mode */
+ if( !wParam ) EndPaint( hWnd, &ps );
+ }
+ break;
+
+ case WM_KEYDOWN:
+ if (wParam == VK_SPACE)
+ {
+ SendMessageW( hWnd, BM_SETSTATE, TRUE, 0 );
+ set_button_state( hWnd, get_button_state( hWnd ) | BUTTON_BTNPRESSED );
+ }
+ break;
+
+ case WM_LBUTTONDBLCLK:
+ if(style & BS_NOTIFY ||
+ btn_type == BS_RADIOBUTTON ||
+ btn_type == BS_USERBUTTON ||
+ btn_type == BS_OWNERDRAW)
+ {
+ SendMessageW( GetParent(hWnd), WM_COMMAND,
+ MAKEWPARAM( GetWindowLongA(hWnd,GWL_ID), BN_DOUBLECLICKED ),
+ (LPARAM)hWnd);
+ break;
+ }
+ /* fall through */
+ case WM_LBUTTONDOWN:
+ SetCapture( hWnd );
+ SetFocus( hWnd );
+ SendMessageW( hWnd, BM_SETSTATE, TRUE, 0 );
+ set_button_state( hWnd, get_button_state( hWnd ) | BUTTON_BTNPRESSED );
+ break;
+
+ case WM_KEYUP:
+ if (wParam != VK_SPACE)
+ break;
+ /* fall through */
+ case WM_LBUTTONUP:
+ state = get_button_state( hWnd );
+ if (!(state & BUTTON_BTNPRESSED)) break;
+ state &= BUTTON_NSTATES;
+ set_button_state( hWnd, state );
+ if (!(state & BUTTON_HIGHLIGHTED))
+ {
+ ReleaseCapture();
+ break;
+ }
+ SendMessageW( hWnd, BM_SETSTATE, FALSE, 0 );
+ ReleaseCapture();
+ GetClientRect( hWnd, &rect );
+ if (uMsg == WM_KEYUP || PtInRect( &rect, pt ))
+ {
+ state = get_button_state( hWnd );
+ switch(btn_type)
+ {
+ case BS_AUTOCHECKBOX:
+ SendMessageW( hWnd, BM_SETCHECK, !(state & BUTTON_CHECKED), 0 );
+ break;
+ case BS_AUTORADIOBUTTON:
+ SendMessageW( hWnd, BM_SETCHECK, TRUE, 0 );
+ break;
+ case BS_AUTO3STATE:
+ SendMessageW( hWnd, BM_SETCHECK,
+ (state & BUTTON_3STATE) ? 0 : ((state & 3) + 1), 0 );
+ break;
+ }
+ SendMessageW( GetParent(hWnd), WM_COMMAND,
+ MAKEWPARAM( GetWindowLongA(hWnd,GWL_ID), BN_CLICKED ), (LPARAM)hWnd);
+ }
+ break;
+
+ case WM_CAPTURECHANGED:
+ state = get_button_state( hWnd );
+ if (state & BUTTON_BTNPRESSED)
+ {
+ state &= BUTTON_NSTATES;
+ set_button_state( hWnd, state );
+ if (state & BUTTON_HIGHLIGHTED) SendMessageW( hWnd, BM_SETSTATE, FALSE, 0 );
+ }
+ break;
+
+ case WM_MOUSEMOVE:
+ if ((wParam & MK_LBUTTON) && GetCapture() == hWnd)
+ {
+ GetClientRect( hWnd, &rect );
+ SendMessageW( hWnd, BM_SETSTATE, PtInRect(&rect, pt), 0 );
+ }
+ break;
+
+ case WM_SETTEXT:
+ {
+ /* Clear an old text here as Windows does */
+ HDC hdc = GetDC(hWnd);
+ HBRUSH hbrush;
+ RECT client, rc;
+
+ hbrush = (HBRUSH)SendMessageW(GetParent(hWnd), WM_CTLCOLORSTATIC,
+ (WPARAM)hdc, (LPARAM)hWnd);
+ if (!hbrush) /* did the app forget to call DefWindowProc ? */
+ hbrush = (HBRUSH)DefWindowProcW(GetParent(hWnd), WM_CTLCOLORSTATIC,
+ (WPARAM)hdc, (LPARAM)hWnd);
+
+ GetClientRect(hWnd, &client);
+ rc = client;
+ BUTTON_CalcLabelRect(hWnd, hdc, &rc);
+ /* Clip by client rect bounds */
+ if (rc.right > client.right) rc.right = client.right;
+ if (rc.bottom > client.bottom) rc.bottom = client.bottom;
+ FillRect(hdc, &rc, hbrush);
+ ReleaseDC(hWnd, hdc);
+
+ if (unicode) DefWindowProcW( hWnd, WM_SETTEXT, wParam, lParam );
+ else DefWindowProcA( hWnd, WM_SETTEXT, wParam, lParam );
+ if (btn_type == BS_GROUPBOX) /* Yes, only for BS_GROUPBOX */
+ InvalidateRect( hWnd, NULL, TRUE );
+ else
+ paint_button( hWnd, btn_type, ODA_DRAWENTIRE );
+ return 1; /* success. FIXME: check text length */
+ }
+
+ case WM_SETFONT:
+ set_button_font( hWnd, (HFONT)wParam );
+ if (lParam) paint_button( hWnd, btn_type, ODA_DRAWENTIRE );
+ break;
+
+ case WM_GETFONT:
+ return (LRESULT)get_button_font( hWnd );
+
+ case WM_SETFOCUS:
+ if ((btn_type == BS_RADIOBUTTON || btn_type == BS_AUTORADIOBUTTON) && (GetCapture() != hWnd) &&
+ !(SendMessageW(hWnd, BM_GETCHECK, 0, 0) & BST_CHECKED))
+ {
+ /* The notification is sent when the button (BS_AUTORADIOBUTTON)
+ is unchecked and the focus was not given by a mouse click. */
+ if (btn_type == BS_AUTORADIOBUTTON)
+ SendMessageW( hWnd, BM_SETCHECK, BUTTON_CHECKED, 0 );
+ SendMessageW( GetParent(hWnd), WM_COMMAND,
+ MAKEWPARAM( GetWindowLongA(hWnd,GWL_ID), BN_CLICKED ), (LPARAM)hWnd);
+ }
+ set_button_state( hWnd, get_button_state(hWnd) | BUTTON_HASFOCUS );
+ paint_button( hWnd, btn_type, ODA_FOCUS );
+ break;
+
+ case WM_KILLFOCUS:
+ set_button_state( hWnd, get_button_state(hWnd) & ~BUTTON_HASFOCUS );
+ paint_button( hWnd, btn_type, ODA_FOCUS );
+ InvalidateRect( hWnd, NULL, TRUE );
+ break;
+
+ case WM_SYSCOLORCHANGE:
+ InvalidateRect( hWnd, NULL, FALSE );
+ break;
+
+ case BM_SETSTYLE:
+ if ((wParam & 0x0f) >= MAX_BTN_TYPE) break;
+ btn_type = wParam & 0x0f;
+ style = (style & ~0x0f) | btn_type;
+ SetWindowLongA( hWnd, GWL_STYLE, style );
+
+ /* Only redraw if lParam flag is set.*/
+ if (lParam)
+ paint_button( hWnd, btn_type, ODA_DRAWENTIRE );
+
+ break;
+
+ case BM_CLICK:
+ SendMessageW( hWnd, WM_LBUTTONDOWN, 0, 0 );
+ SendMessageW( hWnd, WM_LBUTTONUP, 0, 0 );
+ break;
+
+ case BM_SETIMAGE:
+ /* Check that image format matches button style */
+ switch (style & (BS_BITMAP|BS_ICON))
+ {
+ case BS_BITMAP:
+ if (wParam != IMAGE_BITMAP) return 0;
+ break;
+ case BS_ICON:
+ if (wParam != IMAGE_ICON) return 0;
+ break;
+ default:
+ return 0;
+ }
+ oldHbitmap = (HBITMAP)SetWindowLongA( hWnd, HIMAGE_GWL_OFFSET, lParam );
+ InvalidateRect( hWnd, NULL, FALSE );
+ return (LRESULT)oldHbitmap;
+
+ case BM_GETIMAGE:
+ return GetWindowLongA( hWnd, HIMAGE_GWL_OFFSET );
+
+ case BM_GETCHECK:
+ return get_button_state( hWnd ) & 3;
+
+ case BM_SETCHECK:
+ if (wParam > maxCheckState[btn_type]) wParam = maxCheckState[btn_type];
+ state = get_button_state( hWnd );
+ if ((btn_type == BS_RADIOBUTTON) || (btn_type == BS_AUTORADIOBUTTON))
+ {
+ if (wParam) style |= WS_TABSTOP;
+ else style &= ~WS_TABSTOP;
+ SetWindowLongA( hWnd, GWL_STYLE, style );
+ }
+ if ((state & 3) != wParam)
+ {
+ set_button_state( hWnd, (state & ~3) | wParam );
+ paint_button( hWnd, btn_type, ODA_SELECT );
+ }
+ if ((btn_type == BS_AUTORADIOBUTTON) && (wParam == BUTTON_CHECKED) && (style & WS_CHILD))
+ BUTTON_CheckAutoRadioButton( hWnd );
+ break;
+
+ case BM_GETSTATE:
+ return get_button_state( hWnd );
+
+ case BM_SETSTATE:
+ state = get_button_state( hWnd );
+ if (wParam)
+ {
+ if (state & BUTTON_HIGHLIGHTED) break;
+ set_button_state( hWnd, state | BUTTON_HIGHLIGHTED );
+ }
+ else
+ {
+ if (!(state & BUTTON_HIGHLIGHTED)) break;
+ set_button_state( hWnd, state & ~BUTTON_HIGHLIGHTED );
+ }
+ paint_button( hWnd, btn_type, ODA_SELECT );
+ break;
+
+ case WM_NCHITTEST:
+ if(btn_type == BS_GROUPBOX) return HTTRANSPARENT;
+ /* fall through */
+ default:
+ return unicode ? DefWindowProcW(hWnd, uMsg, wParam, lParam) :
+ DefWindowProcA(hWnd, uMsg, wParam, lParam);
+ }
+ return 0;
+}
+
+/***********************************************************************
+ * ButtonWndProcW
+ * The button window procedure. This is just a wrapper which locks
+ * the passed HWND and calls the real window procedure (with a WND*
+ * pointer pointing to the locked windowstructure).
+ */
+static LRESULT WINAPI ButtonWndProcW( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
+{
+ if (!IsWindow( hWnd )) return 0;
+ return ButtonWndProc_common( hWnd, uMsg, wParam, lParam, TRUE );
+}
+
+
+/***********************************************************************
+ * ButtonWndProcA
+ */
+static LRESULT WINAPI ButtonWndProcA( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
+{
+ if (!IsWindow( hWnd )) return 0;
+ return ButtonWndProc_common( hWnd, uMsg, wParam, lParam, FALSE );
+}
+
+
+/**********************************************************************
+ * Convert button styles to flags used by DrawText.
+ * TODO: handle WS_EX_RIGHT extended style.
+ */
+static UINT BUTTON_BStoDT(DWORD style)
+{
+ UINT dtStyle = DT_NOCLIP; /* We use SelectClipRgn to limit output */
+
+ /* "Convert" pushlike buttons to pushbuttons */
+ if (style & BS_PUSHLIKE)
+ style &= ~0x0F;
+
+ if (!(style & BS_MULTILINE))
+ dtStyle |= DT_SINGLELINE;
+ else
+ dtStyle |= DT_WORDBREAK;
+
+ switch (style & BS_CENTER)
+ {
+ case BS_LEFT: /* DT_LEFT is 0 */ break;
+ case BS_RIGHT: dtStyle |= DT_RIGHT; break;
+ case BS_CENTER: dtStyle |= DT_CENTER; break;
+ default:
+ /* Pushbutton's text is centered by default */
+ if (get_button_type(style) <= BS_DEFPUSHBUTTON) dtStyle |= DT_CENTER;
+ /* all other flavours have left aligned text */
+ }
+
+ /* DrawText ignores vertical alignment for multiline text,
+ * but we use these flags to align label manualy.
+ */
+ if (get_button_type(style) != BS_GROUPBOX)
+ {
+ switch (style & BS_VCENTER)
+ {
+ case BS_TOP: /* DT_TOP is 0 */ break;
+ case BS_BOTTOM: dtStyle |= DT_BOTTOM; break;
+ case BS_VCENTER: /* fall through */
+ default: dtStyle |= DT_VCENTER; break;
+ }
+ }
+ else
+ /* GroupBox's text is always single line and is top aligned. */
+ dtStyle |= DT_SINGLELINE;
+
+ return dtStyle;
+}
+
+/**********************************************************************
+ * BUTTON_CalcLabelRect
+ *
+ * Calculates label's rectangle depending on button style.
+ *
+ * Returns flags to be passed to DrawText.
+ * Calculated rectangle doesn't take into account button state
+ * (pushed, etc.). If there is nothing to draw (no text/image) output
+ * rectangle is empty, and return value is (UINT)-1.
+ */
+static UINT BUTTON_CalcLabelRect(HWND hwnd, HDC hdc, RECT *rc)
+{
+ LONG style = GetWindowLongA( hwnd, GWL_STYLE );
+ WCHAR *text;
+ ICONINFO iconInfo;
+ BITMAP bm;
+ UINT dtStyle = BUTTON_BStoDT(style);
+ RECT r = *rc;
+ INT n;
+
+ /* Calculate label rectangle according to label type */
+ switch (style & (BS_ICON|BS_BITMAP))
+ {
+ case BS_TEXT:
+ if (!(text = get_button_text( hwnd ))) goto empty_rect;
+ if (!text[0])
+ {
+ HeapFree( GetProcessHeap(), 0, text );
+ goto empty_rect;
+ }
+ DrawTextW(hdc, text, -1, &r, dtStyle | DT_CALCRECT);
+ HeapFree( GetProcessHeap(), 0, text );
+ break;
+
+ case BS_ICON:
+ if (!GetIconInfo((HICON)GetWindowLongA( hwnd, HIMAGE_GWL_OFFSET ), &iconInfo))
+ goto empty_rect;
+
+ GetObjectW (iconInfo.hbmColor, sizeof(BITMAP), &bm);
+
+ r.right = r.left + bm.bmWidth;
+ r.bottom = r.top + bm.bmHeight;
+
+ DeleteObject(iconInfo.hbmColor);
+ DeleteObject(iconInfo.hbmMask);
+ break;
+
+ case BS_BITMAP:
+ if (!GetObjectW( (HANDLE)GetWindowLongA( hwnd, HIMAGE_GWL_OFFSET ), sizeof(BITMAP), &bm))
+ goto empty_rect;
+
+ r.right = r.left + bm.bmWidth;
+ r.bottom = r.top + bm.bmHeight;
+ break;
+
+ default:
+ empty_rect:
+ r.right = r.left;
+ r.bottom = r.top;
+ return (UINT)(LONG)-1;
+ }
+
+ /* Position label inside bounding rectangle according to
+ * alignment flags. (calculated rect is always left-top aligned).
+ * If label is aligned to any side - shift label in opposite
+ * direction to leave extra space for focus rectangle.
+ */
+ switch (dtStyle & (DT_CENTER|DT_RIGHT))
+ {
+ case DT_LEFT: r.left++; r.right++; break;
+ case DT_CENTER: n = r.right - r.left;
+ r.left = rc->left + ((rc->right - rc->left) - n) / 2;
+ r.right = r.left + n; break;
+ case DT_RIGHT: n = r.right - r.left;
+ r.right = rc->right - 1;
+ r.left = r.right - n;
+ break;
+ }
+
+ switch (dtStyle & (DT_VCENTER|DT_BOTTOM))
+ {
+ case DT_TOP: r.top++; r.bottom++; break;
+ case DT_VCENTER: n = r.bottom - r.top;
+ r.top = rc->top + ((rc->bottom - rc->top) - n) / 2;
+ r.bottom = r.top + n; break;
+ case DT_BOTTOM: n = r.bottom - r.top;
+ r.bottom = rc->bottom - 1;
+ r.top = r.bottom - n;
+ break;
+ }
+
+ *rc = r;
+ return dtStyle;
+}
+
+
+/**********************************************************************
+ * BUTTON_DrawTextCallback
+ *
+ * Callback function used by DrawStateW function.
+ */
+static BOOL CALLBACK BUTTON_DrawTextCallback(HDC hdc, LPARAM lp, WPARAM wp, int cx, int cy)
+{
+ RECT rc;
+ rc.left = 0;
+ rc.top = 0;
+ rc.right = cx;
+ rc.bottom = cy;
+
+ DrawTextW(hdc, (LPCWSTR)lp, -1, &rc, (UINT)wp);
+ return TRUE;
+}
+
+
+/**********************************************************************
+ * BUTTON_DrawLabel
+ *
+ * Common function for drawing button label.
+ */
+static void BUTTON_DrawLabel(HWND hwnd, HDC hdc, UINT dtFlags, RECT *rc)
+{
+ DRAWSTATEPROC lpOutputProc = NULL;
+ LPARAM lp;
+ WPARAM wp = 0;
+ HBRUSH hbr = 0;
+ UINT flags = IsWindowEnabled(hwnd) ? DSS_NORMAL : DSS_DISABLED;
+ LONG state = get_button_state( hwnd );
+ LONG style = GetWindowLongA( hwnd, GWL_STYLE );
+ WCHAR *text = NULL;
+
+ /* FIXME: To draw disabled label in Win31 look-and-feel, we probably
+ * must use DSS_MONO flag and COLOR_GRAYTEXT brush (or maybe DSS_UNION).
+ * I don't have Win31 on hand to verify that, so I leave it as is.
+ */
+
+ if ((style & BS_PUSHLIKE) && (state & BUTTON_3STATE))
+ {
+ hbr = GetSysColorBrush(COLOR_GRAYTEXT);
+ flags |= DSS_MONO;
+ }
+
+ switch (style & (BS_ICON|BS_BITMAP))
+ {
+ case BS_TEXT:
+ /* DST_COMPLEX -- is 0 */
+ lpOutputProc = BUTTON_DrawTextCallback;
+ if (!(text = get_button_text( hwnd ))) return;
+ lp = (LPARAM)text;
+ wp = (WPARAM)dtFlags;
+ break;
+
+ case BS_ICON:
+ flags |= DST_ICON;
+ lp = GetWindowLongA( hwnd, HIMAGE_GWL_OFFSET );
+ break;
+
+ case BS_BITMAP:
+ flags |= DST_BITMAP;
+ lp = GetWindowLongA( hwnd, HIMAGE_GWL_OFFSET );
+ break;
+
+ default:
+ return;
+ }
+
+ DrawStateW(hdc, hbr, lpOutputProc, lp, wp, rc->left, rc->top,
+ rc->right - rc->left, rc->bottom - rc->top, flags);
+ if (text) HeapFree( GetProcessHeap(), 0, text );
+}
+
+/**********************************************************************
+ * Push Button Functions
+ */
+static void PB_Paint( HWND hwnd, HDC hDC, UINT action )
+{
+ RECT rc, focus_rect, r;
+ UINT dtFlags;
+ HRGN hRgn;
+ HPEN hOldPen;
+ HBRUSH hOldBrush;
+ INT oldBkMode;
+ COLORREF oldTxtColor;
+ HFONT hFont;
+ LONG state = get_button_state( hwnd );
+ LONG style = GetWindowLongA( hwnd, GWL_STYLE );
+ BOOL pushedState = (state & BUTTON_HIGHLIGHTED);
+
+ GetClientRect( hwnd, &rc );
+
+ /* Send WM_CTLCOLOR to allow changing the font (the colors are fixed) */
+ if ((hFont = get_button_font( hwnd ))) SelectObject( hDC, hFont );
+ SendMessageW( GetParent(hwnd), WM_CTLCOLORBTN, (WPARAM)hDC, (LPARAM)hwnd );
+ hOldPen = (HPEN)SelectObject(hDC, GetSysColorPen(COLOR_WINDOWFRAME));
+ hOldBrush =(HBRUSH)SelectObject(hDC,GetSysColorBrush(COLOR_BTNFACE));
+ oldBkMode = SetBkMode(hDC, TRANSPARENT);
+
+ if (get_button_type(style) == BS_DEFPUSHBUTTON)
+ {
+ Rectangle(hDC, rc.left, rc.top, rc.right, rc.bottom);
+ InflateRect( &rc, -1, -1 );
+ }
+
+ UINT uState = DFCS_BUTTONPUSH | DFCS_ADJUSTRECT;
+
+ if (style & BS_FLAT)
+ uState |= DFCS_MONO;
+ else if (pushedState)
+ {
+ if (get_button_type(style) == BS_DEFPUSHBUTTON )
+ uState |= DFCS_FLAT;
+ else
+ uState |= DFCS_PUSHED;
+ }
+
+ if (state & (BUTTON_CHECKED | BUTTON_3STATE))
+ uState |= DFCS_CHECKED;
+
+ DrawFrameControl( hDC, &rc, DFC_BUTTON, uState );
+
+ focus_rect = rc;
+
+ /* draw button label */
+ r = rc;
+ dtFlags = BUTTON_CalcLabelRect(hwnd, hDC, &r);
+
+ if (dtFlags == (UINT)-1L)
+ goto cleanup;
+
+ if (pushedState)
+ OffsetRect(&r, 1, 1);
+
+ hRgn = CreateRectRgn(rc.left, rc.top, rc.right, rc.bottom);
+ SelectClipRgn(hDC, hRgn);
+
+ oldTxtColor = SetTextColor( hDC, GetSysColor(COLOR_BTNTEXT) );
+
+ BUTTON_DrawLabel(hwnd, hDC, dtFlags, &r);
+
+ SetTextColor( hDC, oldTxtColor );
+ SelectClipRgn(hDC, 0);
+ DeleteObject(hRgn);
+
+ if (state & BUTTON_HASFOCUS)
+ {
+ InflateRect( &focus_rect, -1, -1 );
+ IntersectRect(&focus_rect, &focus_rect, &rc);
+ DrawFocusRect( hDC, &focus_rect );
+ }
+
+ cleanup:
+ SelectObject( hDC, hOldPen );
+ SelectObject( hDC, hOldBrush );
+ SetBkMode(hDC, oldBkMode);
+}
+
+/**********************************************************************
+ * Check Box & Radio Button Functions
+ */
+
+static void CB_Paint( HWND hwnd, HDC hDC, UINT action )
+{
+ RECT rbox, rtext, client;
+ HBRUSH hBrush;
+ int delta;
+ UINT dtFlags;
+ HRGN hRgn;
+ HFONT hFont;
+ LONG state = get_button_state( hwnd );
+ LONG style = GetWindowLongA( hwnd, GWL_STYLE );
+
+ if (style & BS_PUSHLIKE)
+ {
+ PB_Paint( hwnd, hDC, action );
+ return;
+ }
+
+ GetClientRect(hwnd, &client);
+ rbox = rtext = client;
+
+ if ((hFont = get_button_font( hwnd ))) SelectObject( hDC, hFont );
+
+ hBrush = (HBRUSH)SendMessageW(GetParent(hwnd), WM_CTLCOLORSTATIC,
+ (WPARAM)hDC, (LPARAM)hwnd);
+ if (!hBrush) /* did the app forget to call defwindowproc ? */
+ hBrush = (HBRUSH)DefWindowProcW(GetParent(hwnd), WM_CTLCOLORSTATIC,
+ (WPARAM)hDC, (LPARAM)hwnd );
+
+ if (style & BS_LEFTTEXT)
+ {
+ /* magic +4 is what CTL3D expects */
+
+ rtext.right -= checkBoxWidth + 4;
+ rbox.left = rbox.right - checkBoxWidth;
+ }
+ else
+ {
+ rtext.left += checkBoxWidth + 4;
+ rbox.right = checkBoxWidth;
+ }
+
+ /* Since WM_ERASEBKGND does nothing, first prepare background */
+ if (action == ODA_SELECT) FillRect( hDC, &rbox, hBrush );
+ if (action == ODA_DRAWENTIRE) FillRect( hDC, &client, hBrush );
+
+ /* Draw label */
+ client = rtext;
+ dtFlags = BUTTON_CalcLabelRect(hwnd, hDC, &rtext);
+
+ rbox.top = rtext.top;
+ rbox.bottom = rtext.bottom;
+ /* Draw the check-box bitmap */
+ if (action == ODA_DRAWENTIRE || action == ODA_SELECT)
+ {
+ UINT flags;
+
+ if ((get_button_type(style) == BS_RADIOBUTTON) ||
+ (get_button_type(style) == BS_AUTORADIOBUTTON)) flags = DFCS_BUTTONRADIO;
+ else if (state & BUTTON_3STATE) flags = DFCS_BUTTON3STATE;
+ else flags = DFCS_BUTTONCHECK;
+
+ if (state & (BUTTON_CHECKED | BUTTON_3STATE)) flags |= DFCS_CHECKED;
+ if (state & BUTTON_HIGHLIGHTED) flags |= DFCS_PUSHED;
+
+ if (style & WS_DISABLED) flags |= DFCS_INACTIVE;
+
+ /* rbox must have the correct height */
+ delta = rbox.bottom - rbox.top - checkBoxHeight;
+
+ if (style & BS_TOP) {
+ if (delta > 0) {
+ rbox.bottom = rbox.top + checkBoxHeight;
+ } else {
+ rbox.top -= -delta/2 + 1;
+ rbox.bottom += rbox.top + checkBoxHeight;
+ }
+ } else if (style & BS_BOTTOM) {
+ if (delta > 0) {
+ rbox.top = rbox.bottom - checkBoxHeight;
+ } else {
+ rbox.bottom += -delta/2 + 1;
+ rbox.top = rbox.bottom -= checkBoxHeight;
+ }
+ } else { /* Default */
+ if (delta > 0)
+ {
+ int ofs = (delta / 2);
+ rbox.bottom -= ofs + 1;
+ rbox.top = rbox.bottom - checkBoxHeight;
+ }
+ else if (delta < 0)
+ {
+ int ofs = (-delta / 2);
+ rbox.top -= ofs + 1;
+ rbox.bottom = rbox.top + checkBoxHeight;
+ }
+ }
+
+ DrawFrameControl( hDC, &rbox, DFC_BUTTON, flags );
+ }
+
+ if (dtFlags == (UINT)-1L) /* Noting to draw */
+ return;
+ hRgn = CreateRectRgn(client.left, client.top, client.right, client.bottom);
+ SelectClipRgn(hDC, hRgn);
+ DeleteObject(hRgn);
+
+ if (action == ODA_DRAWENTIRE)
+ BUTTON_DrawLabel(hwnd, hDC, dtFlags, &rtext);
+
+ /* ... and focus */
+ if ((action == ODA_FOCUS) ||
+ ((action == ODA_DRAWENTIRE) && (state & BUTTON_HASFOCUS)))
+ {
+ rtext.left--;
+ rtext.right++;
+ IntersectRect(&rtext, &rtext, &client);
+ DrawFocusRect( hDC, &rtext );
+ }
+ SelectClipRgn(hDC, 0);
+}
+
+
+/**********************************************************************
+ * BUTTON_CheckAutoRadioButton
+ *
+ * hwnd is checked, uncheck every other auto radio button in group
+ */
+static void BUTTON_CheckAutoRadioButton( HWND hwnd )
+{
+ HWND parent, sibling, start;
+
+ parent = GetParent(hwnd);
+ /* make sure that starting control is not disabled or invisible */
+ start = sibling = GetNextDlgGroupItem( parent, hwnd, TRUE );
+ do
+ {
+ if (!sibling) break;
+ if ((hwnd != sibling) &&
+ ((GetWindowLongA( sibling, GWL_STYLE) & 0x0f) == BS_AUTORADIOBUTTON))
+ SendMessageW( sibling, BM_SETCHECK, BUTTON_UNCHECKED, 0 );
+ sibling = GetNextDlgGroupItem( parent, sibling, FALSE );
+ } while (sibling != start);
+}
+
+
+/**********************************************************************
+ * Group Box Functions
+ */
+
+static void GB_Paint( HWND hwnd, HDC hDC, UINT action )
+{
+ RECT rc, rcFrame;
+ HBRUSH hbr;
+ HFONT hFont;
+ UINT dtFlags;
+ LONG style = GetWindowLongA( hwnd, GWL_STYLE );
+
+ if (action != ODA_DRAWENTIRE) return;
+
+ if ((hFont = get_button_font( hwnd ))) SelectObject( hDC, hFont );
+ /* GroupBox acts like static control, so it sends CTLCOLORSTATIC */
+ hbr = (HBRUSH)SendMessageW(GetParent(hwnd), WM_CTLCOLORSTATIC, (WPARAM)hDC, (LPARAM)hwnd);
+ if (!hbr) /* did the app forget to call defwindowproc ? */
+ hbr = (HBRUSH)DefWindowProcW(GetParent(hwnd), WM_CTLCOLORSTATIC,
+ (WPARAM)hDC, (LPARAM)hwnd);
+
+ GetClientRect( hwnd, &rc);
+ TEXTMETRICW tm;
+ rcFrame = rc;
+
+ GetTextMetricsW (hDC, &tm);
+ rcFrame.top += (tm.tmHeight / 2) - 1;
+ DrawEdge (hDC, &rcFrame, EDGE_ETCHED, BF_RECT | ((style & BS_FLAT) ? BF_FLAT : 0));
+
+
+ InflateRect(&rc, -7, 1);
+ dtFlags = BUTTON_CalcLabelRect(hwnd, hDC, &rc);
+
+ if (dtFlags == (UINT)-1L)
+ return;
+
+ /* Because buttons have CS_PARENTDC class style, there is a chance
+ * that label will be drawn out of client rect.
+ * But Windows doesn't clip label's rect, so do I.
+ */
+
+ /* There is 1-pixel marging at the left, right, and bottom */
+ rc.left--; rc.right++; rc.bottom++;
+ FillRect(hDC, &rc, hbr);
+ rc.left++; rc.right--; rc.bottom--;
+
+ BUTTON_DrawLabel(hwnd, hDC, dtFlags, &rc);
+}
+
+
+/**********************************************************************
+ * User Button Functions
+ */
+
+static void UB_Paint( HWND hwnd, HDC hDC, UINT action )
+{
+ RECT rc;
+ HBRUSH hBrush;
+ HFONT hFont;
+ LONG state = get_button_state( hwnd );
+
+ if (action == ODA_SELECT) return;
+
+ GetClientRect( hwnd, &rc);
+
+ if ((hFont = get_button_font( hwnd ))) SelectObject( hDC, hFont );
+
+ hBrush = (HBRUSH)SendMessageW(GetParent(hwnd), WM_CTLCOLORBTN, (WPARAM)hDC, (LPARAM)hwnd);
+ if (!hBrush) /* did the app forget to call defwindowproc ? */
+ hBrush = (HBRUSH)DefWindowProcW(GetParent(hwnd), WM_CTLCOLORBTN,
+ (WPARAM)hDC, (LPARAM)hwnd);
+
+ FillRect( hDC, &rc, hBrush );
+ if ((action == ODA_FOCUS) ||
+ ((action == ODA_DRAWENTIRE) && (state & BUTTON_HASFOCUS)))
+ DrawFocusRect( hDC, &rc );
+}
+
+
+/**********************************************************************
+ * Ownerdrawn Button Functions
+ */
+
+static void OB_Paint( HWND hwnd, HDC hDC, UINT action )
+{
+ LONG state = get_button_state( hwnd );
+ DRAWITEMSTRUCT dis;
+ HRGN clipRegion;
+ RECT clipRect;
+ UINT id = GetWindowLongA( hwnd, GWL_ID );
+
+ dis.CtlType = ODT_BUTTON;
+ dis.CtlID = id;
+ dis.itemID = 0;
+ dis.itemAction = action;
+ dis.itemState = ((state & BUTTON_HASFOCUS) ? ODS_FOCUS : 0) |
+ ((state & BUTTON_HIGHLIGHTED) ? ODS_SELECTED : 0) |
+ (IsWindowEnabled(hwnd) ? 0: ODS_DISABLED);
+ dis.hwndItem = hwnd;
+ dis.hDC = hDC;
+ dis.itemData = 0;
+ GetClientRect( hwnd, &dis.rcItem );
+
+ clipRegion = CreateRectRgnIndirect(&dis.rcItem);
+ if (GetClipRgn(hDC, clipRegion) != 1)
+ {
+ DeleteObject(clipRegion);
+ clipRegion=NULL;
+ }
+ clipRect = dis.rcItem;
+ DPtoLP(hDC, (LPPOINT) &clipRect, 2);
+ IntersectClipRect(hDC, clipRect.left, clipRect.top, clipRect.right, clipRect.bottom);
+
+ SetBkColor( hDC, GetSysColor( COLOR_BTNFACE ) );
+ SendMessageW( GetParent(hwnd), WM_DRAWITEM, id, (LPARAM)&dis );
+ SelectClipRgn(hDC, clipRegion);
+}
projects / reactos.git / commitdiff