1074 lines
32 KiB
C
1074 lines
32 KiB
C
/* File: button.c -- Button type widgets
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*
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* Copyright (C) 1993 Johannes Ruscheinski
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* Copyright (C) 1993 David Metcalfe
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* Copyright (C) 1994 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <stdarg.h>
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#include <string.h>
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#include <stdlib.h>
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#include "windef.h"
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#include "winbase.h"
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#include "wingdi.h"
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#include "wine/winuser16.h"
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#include "controls.h"
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#include "user.h"
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/* GetWindowLong offsets for window extra information */
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#define STATE_GWL_OFFSET 0
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#define HFONT_GWL_OFFSET (sizeof(LONG))
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#define HIMAGE_GWL_OFFSET (HFONT_GWL_OFFSET+sizeof(HFONT))
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#define NB_EXTRA_BYTES (HIMAGE_GWL_OFFSET+sizeof(HANDLE))
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/* Button state values */
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#define BUTTON_UNCHECKED 0x00
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#define BUTTON_CHECKED 0x01
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#define BUTTON_3STATE 0x02
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#define BUTTON_HIGHLIGHTED 0x04
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#define BUTTON_HASFOCUS 0x08
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#define BUTTON_NSTATES 0x0F
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/* undocumented flags */
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#define BUTTON_BTNPRESSED 0x40
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#define BUTTON_UNKNOWN2 0x20
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#define BUTTON_UNKNOWN3 0x10
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static UINT BUTTON_CalcLabelRect( HWND hwnd, HDC hdc, RECT *rc );
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static void PB_Paint( HWND hwnd, HDC hDC, UINT action );
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static void CB_Paint( HWND hwnd, HDC hDC, UINT action );
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static void GB_Paint( HWND hwnd, HDC hDC, UINT action );
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static void UB_Paint( HWND hwnd, HDC hDC, UINT action );
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static void OB_Paint( HWND hwnd, HDC hDC, UINT action );
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static void BUTTON_CheckAutoRadioButton( HWND hwnd );
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static LRESULT WINAPI ButtonWndProcA( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam );
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static LRESULT WINAPI ButtonWndProcW( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam );
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#define MAX_BTN_TYPE 12
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static const WORD maxCheckState[MAX_BTN_TYPE] =
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{
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BUTTON_UNCHECKED, /* BS_PUSHBUTTON */
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BUTTON_UNCHECKED, /* BS_DEFPUSHBUTTON */
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BUTTON_CHECKED, /* BS_CHECKBOX */
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BUTTON_CHECKED, /* BS_AUTOCHECKBOX */
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BUTTON_CHECKED, /* BS_RADIOBUTTON */
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BUTTON_3STATE, /* BS_3STATE */
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BUTTON_3STATE, /* BS_AUTO3STATE */
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BUTTON_UNCHECKED, /* BS_GROUPBOX */
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BUTTON_UNCHECKED, /* BS_USERBUTTON */
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BUTTON_CHECKED, /* BS_AUTORADIOBUTTON */
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BUTTON_UNCHECKED, /* Not defined */
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BUTTON_UNCHECKED /* BS_OWNERDRAW */
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};
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typedef void (*pfPaint)( HWND hwnd, HDC hdc, UINT action );
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static const pfPaint btnPaintFunc[MAX_BTN_TYPE] =
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{
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PB_Paint, /* BS_PUSHBUTTON */
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PB_Paint, /* BS_DEFPUSHBUTTON */
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CB_Paint, /* BS_CHECKBOX */
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CB_Paint, /* BS_AUTOCHECKBOX */
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CB_Paint, /* BS_RADIOBUTTON */
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CB_Paint, /* BS_3STATE */
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CB_Paint, /* BS_AUTO3STATE */
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GB_Paint, /* BS_GROUPBOX */
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UB_Paint, /* BS_USERBUTTON */
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CB_Paint, /* BS_AUTORADIOBUTTON */
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NULL, /* Not defined */
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OB_Paint /* BS_OWNERDRAW */
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};
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static HBITMAP hbitmapCheckBoxes = 0;
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static WORD checkBoxWidth = 0, checkBoxHeight = 0;
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/*********************************************************************
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* button class descriptor
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*/
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const struct builtin_class_descr BUTTON_builtin_class =
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{
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"Button", /* name */
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CS_DBLCLKS | CS_VREDRAW | CS_HREDRAW | CS_PARENTDC, /* style */
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ButtonWndProcA, /* procA */
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ButtonWndProcW, /* procW */
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NB_EXTRA_BYTES, /* extra */
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IDC_ARROW, /* cursor */
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0 /* brush */
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};
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inline static LONG get_button_state( HWND hwnd )
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{
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return GetWindowLongA( hwnd, STATE_GWL_OFFSET );
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}
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inline static void set_button_state( HWND hwnd, LONG state )
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{
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SetWindowLongA( hwnd, STATE_GWL_OFFSET, state );
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}
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inline static HFONT get_button_font( HWND hwnd )
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{
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return (HFONT)GetWindowLongPtrA( hwnd, HFONT_GWL_OFFSET );
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}
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inline static void set_button_font( HWND hwnd, HFONT font )
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{
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SetWindowLongPtrA( hwnd, HFONT_GWL_OFFSET, (LONG_PTR)font );
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}
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inline static UINT get_button_type( LONG window_style )
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{
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return (window_style & 0x0f);
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}
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/* paint a button of any type */
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inline static void paint_button( HWND hwnd, LONG style, UINT action )
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{
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if (btnPaintFunc[style] && IsWindowVisible(hwnd))
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{
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HDC hdc = GetDC( hwnd );
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btnPaintFunc[style]( hwnd, hdc, action );
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ReleaseDC( hwnd, hdc );
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}
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}
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/* retrieve the button text; returned buffer must be freed by caller */
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inline static WCHAR *get_button_text( HWND hwnd )
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{
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INT len = 512;
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WCHAR *buffer = HeapAlloc( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) );
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if (buffer) InternalGetWindowText( hwnd, buffer, len + 1 );
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return buffer;
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}
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/***********************************************************************
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* ButtonWndProc_common
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*/
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static LRESULT WINAPI ButtonWndProc_common(HWND hWnd, UINT uMsg,
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WPARAM wParam, LPARAM lParam, BOOL unicode )
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{
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RECT rect;
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POINT pt;
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LONG style = GetWindowLongA( hWnd, GWL_STYLE );
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UINT btn_type = get_button_type( style );
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LONG state;
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HANDLE oldHbitmap;
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pt.x = LOWORD(lParam);
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pt.y = HIWORD(lParam);
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switch (uMsg)
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{
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case WM_GETDLGCODE:
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switch(btn_type)
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{
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case BS_PUSHBUTTON: return DLGC_BUTTON | DLGC_UNDEFPUSHBUTTON;
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case BS_DEFPUSHBUTTON: return DLGC_BUTTON | DLGC_DEFPUSHBUTTON;
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case BS_RADIOBUTTON:
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case BS_AUTORADIOBUTTON: return DLGC_BUTTON | DLGC_RADIOBUTTON;
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default: return DLGC_BUTTON;
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}
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case WM_ENABLE:
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paint_button( hWnd, btn_type, ODA_DRAWENTIRE );
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break;
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case WM_CREATE:
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if (!hbitmapCheckBoxes)
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{
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BITMAP bmp;
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hbitmapCheckBoxes = LoadBitmapW(0, MAKEINTRESOURCEW(OBM_CHECKBOXES));
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GetObjectW( hbitmapCheckBoxes, sizeof(bmp), &bmp );
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checkBoxWidth = bmp.bmWidth / 4;
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checkBoxHeight = bmp.bmHeight / 3;
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}
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if (btn_type >= MAX_BTN_TYPE)
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return -1; /* abort */
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set_button_state( hWnd, BUTTON_UNCHECKED );
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return 0;
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case WM_ERASEBKGND:
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if (btn_type == BS_OWNERDRAW)
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{
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HDC hdc = (HDC)wParam;
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RECT rc;
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HBRUSH hBrush;
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HWND parent = GetParent(hWnd);
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if (!parent) parent = hWnd;
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hBrush = (HBRUSH)SendMessageW(parent, WM_CTLCOLORBTN, (WPARAM)hdc, (LPARAM)hWnd);
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if (!hBrush) /* did the app forget to call defwindowproc ? */
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hBrush = (HBRUSH)DefWindowProcW(parent, WM_CTLCOLORBTN,
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(WPARAM)hdc, (LPARAM)hWnd);
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GetClientRect(hWnd, &rc);
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FillRect(hdc, &rc, hBrush);
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}
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return 1;
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case WM_PAINT:
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if (btnPaintFunc[btn_type])
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{
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PAINTSTRUCT ps;
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HDC hdc = wParam ? (HDC)wParam : BeginPaint( hWnd, &ps );
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int nOldMode = SetBkMode( hdc, OPAQUE );
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(btnPaintFunc[btn_type])( hWnd, hdc, ODA_DRAWENTIRE );
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SetBkMode(hdc, nOldMode); /* reset painting mode */
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if( !wParam ) EndPaint( hWnd, &ps );
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}
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break;
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case WM_KEYDOWN:
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if (wParam == VK_SPACE)
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{
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SendMessageW( hWnd, BM_SETSTATE, TRUE, 0 );
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set_button_state( hWnd, get_button_state( hWnd ) | BUTTON_BTNPRESSED );
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}
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break;
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case WM_LBUTTONDBLCLK:
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if(style & BS_NOTIFY ||
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btn_type == BS_RADIOBUTTON ||
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btn_type == BS_USERBUTTON ||
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btn_type == BS_OWNERDRAW)
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{
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SendMessageW( GetParent(hWnd), WM_COMMAND,
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MAKEWPARAM( GetWindowLongPtrA(hWnd,GWLP_ID), BN_DOUBLECLICKED ),
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(LPARAM)hWnd);
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break;
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}
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/* fall through */
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case WM_LBUTTONDOWN:
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SetCapture( hWnd );
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SetFocus( hWnd );
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set_button_state( hWnd, get_button_state( hWnd ) | BUTTON_BTNPRESSED );
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SendMessageW( hWnd, BM_SETSTATE, TRUE, 0 );
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break;
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case WM_KEYUP:
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if (wParam != VK_SPACE)
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break;
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/* fall through */
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case WM_LBUTTONUP:
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state = get_button_state( hWnd );
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if (!(state & BUTTON_BTNPRESSED)) break;
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state &= BUTTON_NSTATES;
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set_button_state( hWnd, state );
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if (!(state & BUTTON_HIGHLIGHTED))
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{
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ReleaseCapture();
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break;
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}
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SendMessageW( hWnd, BM_SETSTATE, FALSE, 0 );
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ReleaseCapture();
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GetClientRect( hWnd, &rect );
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if (uMsg == WM_KEYUP || PtInRect( &rect, pt ))
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{
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state = get_button_state( hWnd );
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switch(btn_type)
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{
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case BS_AUTOCHECKBOX:
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SendMessageW( hWnd, BM_SETCHECK, !(state & BUTTON_CHECKED), 0 );
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break;
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case BS_AUTORADIOBUTTON:
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SendMessageW( hWnd, BM_SETCHECK, TRUE, 0 );
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break;
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case BS_AUTO3STATE:
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SendMessageW( hWnd, BM_SETCHECK,
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(state & BUTTON_3STATE) ? 0 : ((state & 3) + 1), 0 );
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break;
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}
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SendMessageW( GetParent(hWnd), WM_COMMAND,
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MAKEWPARAM( GetWindowLongPtrA(hWnd,GWLP_ID), BN_CLICKED ), (LPARAM)hWnd);
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}
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break;
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case WM_CAPTURECHANGED:
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state = get_button_state( hWnd );
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if (state & BUTTON_BTNPRESSED)
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{
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state &= BUTTON_NSTATES;
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set_button_state( hWnd, state );
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if (state & BUTTON_HIGHLIGHTED) SendMessageW( hWnd, BM_SETSTATE, FALSE, 0 );
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}
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break;
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case WM_MOUSEMOVE:
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if ((wParam & MK_LBUTTON) && GetCapture() == hWnd)
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{
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GetClientRect( hWnd, &rect );
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SendMessageW( hWnd, BM_SETSTATE, PtInRect(&rect, pt), 0 );
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}
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break;
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case WM_SETTEXT:
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{
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/* Clear an old text here as Windows does */
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HDC hdc = GetDC(hWnd);
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HBRUSH hbrush;
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RECT client, rc;
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HWND parent = GetParent(hWnd);
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if (!parent) parent = hWnd;
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hbrush = (HBRUSH)SendMessageW(parent, WM_CTLCOLORSTATIC,
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(WPARAM)hdc, (LPARAM)hWnd);
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if (!hbrush) /* did the app forget to call DefWindowProc ? */
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hbrush = (HBRUSH)DefWindowProcW(parent, WM_CTLCOLORSTATIC,
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(WPARAM)hdc, (LPARAM)hWnd);
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GetClientRect(hWnd, &client);
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rc = client;
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BUTTON_CalcLabelRect(hWnd, hdc, &rc);
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/* Clip by client rect bounds */
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if (rc.right > client.right) rc.right = client.right;
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if (rc.bottom > client.bottom) rc.bottom = client.bottom;
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FillRect(hdc, &rc, hbrush);
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ReleaseDC(hWnd, hdc);
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if (unicode) DefWindowProcW( hWnd, WM_SETTEXT, wParam, lParam );
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else DefWindowProcA( hWnd, WM_SETTEXT, wParam, lParam );
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if (btn_type == BS_GROUPBOX) /* Yes, only for BS_GROUPBOX */
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InvalidateRect( hWnd, NULL, TRUE );
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else
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paint_button( hWnd, btn_type, ODA_DRAWENTIRE );
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return 1; /* success. FIXME: check text length */
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}
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case WM_SETFONT:
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set_button_font( hWnd, (HFONT)wParam );
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if (lParam) paint_button( hWnd, btn_type, ODA_DRAWENTIRE );
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break;
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case WM_GETFONT:
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return (LRESULT)get_button_font( hWnd );
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case WM_SETFOCUS:
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set_button_state( hWnd, get_button_state(hWnd) | BUTTON_HASFOCUS );
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paint_button( hWnd, btn_type, ODA_FOCUS );
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break;
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case WM_KILLFOCUS:
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state = get_button_state( hWnd );
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set_button_state( hWnd, state & ~BUTTON_HASFOCUS );
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paint_button( hWnd, btn_type, ODA_FOCUS );
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if ((state & BUTTON_BTNPRESSED) && GetCapture() == hWnd)
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ReleaseCapture();
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break;
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case WM_SYSCOLORCHANGE:
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InvalidateRect( hWnd, NULL, FALSE );
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break;
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case BM_SETSTYLE16:
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case BM_SETSTYLE:
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if ((wParam & 0x0f) >= MAX_BTN_TYPE) break;
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btn_type = wParam & 0x0f;
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style = (style & ~0x0f) | btn_type;
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SetWindowLongA( hWnd, GWL_STYLE, style );
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/* Only redraw if lParam flag is set.*/
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if (lParam)
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paint_button( hWnd, btn_type, ODA_DRAWENTIRE );
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break;
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case BM_CLICK:
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SendMessageW( hWnd, WM_LBUTTONDOWN, 0, 0 );
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SendMessageW( hWnd, WM_LBUTTONUP, 0, 0 );
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break;
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case BM_SETIMAGE:
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/* Check that image format matches button style */
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switch (style & (BS_BITMAP|BS_ICON))
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{
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case BS_BITMAP:
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if (wParam != IMAGE_BITMAP) return 0;
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break;
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case BS_ICON:
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if (wParam != IMAGE_ICON) return 0;
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break;
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default:
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return 0;
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}
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oldHbitmap = (HBITMAP)SetWindowLongA( hWnd, HIMAGE_GWL_OFFSET, lParam );
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InvalidateRect( hWnd, NULL, FALSE );
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return (LRESULT)oldHbitmap;
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case BM_GETIMAGE:
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return GetWindowLongPtrA( hWnd, HIMAGE_GWL_OFFSET );
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case BM_GETCHECK16:
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case BM_GETCHECK:
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return get_button_state( hWnd ) & 3;
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case BM_SETCHECK16:
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case BM_SETCHECK:
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if (wParam > maxCheckState[btn_type]) wParam = maxCheckState[btn_type];
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state = get_button_state( hWnd );
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if ((btn_type == BS_RADIOBUTTON) || (btn_type == BS_AUTORADIOBUTTON))
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{
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if (wParam) style |= WS_TABSTOP;
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else style &= ~WS_TABSTOP;
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SetWindowLongA( hWnd, GWL_STYLE, style );
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}
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if ((state & 3) != wParam)
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{
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set_button_state( hWnd, (state & ~3) | wParam );
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paint_button( hWnd, btn_type, ODA_SELECT );
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}
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if ((btn_type == BS_AUTORADIOBUTTON) && (wParam == BUTTON_CHECKED) && (style & WS_CHILD))
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BUTTON_CheckAutoRadioButton( hWnd );
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break;
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case BM_GETSTATE16:
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case BM_GETSTATE:
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return get_button_state( hWnd );
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case BM_SETSTATE16:
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case BM_SETSTATE:
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state = get_button_state( hWnd );
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if (wParam)
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{
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if (state & BUTTON_HIGHLIGHTED) break;
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set_button_state( hWnd, state | BUTTON_HIGHLIGHTED );
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}
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else
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{
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if (!(state & BUTTON_HIGHLIGHTED)) break;
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set_button_state( hWnd, state & ~BUTTON_HIGHLIGHTED );
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}
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paint_button( hWnd, btn_type, ODA_SELECT );
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break;
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case WM_NCHITTEST:
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if(btn_type == BS_GROUPBOX) return HTTRANSPARENT;
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/* fall through */
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default:
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return unicode ? DefWindowProcW(hWnd, uMsg, wParam, lParam) :
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DefWindowProcA(hWnd, uMsg, wParam, lParam);
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}
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return 0;
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}
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|
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/***********************************************************************
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* ButtonWndProcW
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* The button window procedure. This is just a wrapper which locks
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* the passed HWND and calls the real window procedure (with a WND*
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* pointer pointing to the locked windowstructure).
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*/
|
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static LRESULT WINAPI ButtonWndProcW( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
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{
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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)GetWindowLongPtrA( 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)GetWindowLongPtrA( 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 = GetWindowLongPtrA( hwnd, HIMAGE_GWL_OFFSET );
|
|
break;
|
|
|
|
case BS_BITMAP:
|
|
flags |= DST_BITMAP;
|
|
lp = GetWindowLongPtrA( 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, uState;
|
|
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);
|
|
HWND parent;
|
|
|
|
GetClientRect( hwnd, &rc );
|
|
|
|
/* Send WM_CTLCOLOR to allow changing the font (the colors are fixed) */
|
|
if ((hFont = get_button_font( hwnd ))) SelectObject( hDC, hFont );
|
|
parent = GetParent(hwnd);
|
|
if (!parent) parent = hwnd;
|
|
SendMessageW( parent, WM_CTLCOLORBTN, (WPARAM)hDC, (LPARAM)hwnd );
|
|
hOldPen = (HPEN)SelectObject(hDC, SYSCOLOR_GetPen(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 );
|
|
}
|
|
|
|
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 );
|
|
HWND parent;
|
|
|
|
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 );
|
|
|
|
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 );
|
|
|
|
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;
|
|
TEXTMETRICW tm;
|
|
LONG style = GetWindowLongA( hwnd, GWL_STYLE );
|
|
HWND parent;
|
|
|
|
if ((hFont = get_button_font( hwnd ))) SelectObject( hDC, hFont );
|
|
/* GroupBox acts like static control, so it sends CTLCOLORSTATIC */
|
|
parent = GetParent(hwnd);
|
|
if (!parent) parent = hwnd;
|
|
hbr = (HBRUSH)SendMessageW(parent, WM_CTLCOLORSTATIC, (WPARAM)hDC, (LPARAM)hwnd);
|
|
if (!hbr) /* did the app forget to call defwindowproc ? */
|
|
hbr = (HBRUSH)DefWindowProcW(parent, WM_CTLCOLORSTATIC,
|
|
(WPARAM)hDC, (LPARAM)hwnd);
|
|
|
|
GetClientRect( hwnd, &rc);
|
|
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 );
|
|
HWND parent;
|
|
|
|
if (action == ODA_SELECT) return;
|
|
|
|
GetClientRect( hwnd, &rc);
|
|
|
|
if ((hFont = get_button_font( hwnd ))) SelectObject( hDC, hFont );
|
|
|
|
parent = GetParent(hwnd);
|
|
if (!parent) parent = hwnd;
|
|
hBrush = (HBRUSH)SendMessageW(parent, WM_CTLCOLORBTN, (WPARAM)hDC, (LPARAM)hwnd);
|
|
if (!hBrush) /* did the app forget to call defwindowproc ? */
|
|
hBrush = (HBRUSH)DefWindowProcW(parent, 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;
|
|
LONG_PTR id = GetWindowLongPtrA( hwnd, GWLP_ID );
|
|
HWND parent;
|
|
HFONT hFont, hPrevFont = 0;
|
|
|
|
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);
|
|
|
|
if ((hFont = get_button_font( hwnd ))) hPrevFont = SelectObject( hDC, hFont );
|
|
parent = GetParent(hwnd);
|
|
if (!parent) parent = hwnd;
|
|
SendMessageW( parent, WM_CTLCOLORBTN, (WPARAM)hDC, (LPARAM)hwnd );
|
|
SendMessageW( GetParent(hwnd), WM_DRAWITEM, id, (LPARAM)&dis );
|
|
if (hPrevFont) SelectObject(hDC, hPrevFont);
|
|
SelectClipRgn(hDC, clipRegion);
|
|
}
|