| /* File: button.c -- Button type widgets |
| * |
| * Copyright (C) 1993 Johannes Ruscheinski |
| * Copyright (C) 1993 David Metcalfe |
| * Copyright (C) 1994 Alexandre Julliard |
| |
| static char Copyright1[] = "Copyright Johannes Ruscheinski, 1993"; |
| static char Copyright2[] = "Copyright David Metcalfe, 1993"; |
| static char Copyright3[] = "Copyright Alexandre Julliard, 1994"; |
| */ |
| |
| #include "win.h" |
| #include "user.h" |
| #include "syscolor.h" |
| #include "graphics.h" |
| #include "button.h" |
| |
| extern void DEFWND_SetText( HWND hwnd, LPSTR text ); /* windows/defwnd.c */ |
| |
| static void PB_Paint( HWND hWnd, HDC hDC, WORD action ); |
| static void CB_Paint( HWND hWnd, HDC hDC, WORD action ); |
| static void GB_Paint( HWND hWnd, HDC hDC, WORD action ); |
| static void UB_Paint( HWND hWnd, HDC hDC, WORD action ); |
| static void OB_Paint( HWND hWnd, HDC hDC, WORD action ); |
| static void BUTTON_CheckAutoRadioButton(HWND hWnd); |
| |
| |
| #define MAX_BTN_TYPE 12 |
| |
| static 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,HDC,WORD); |
| |
| static 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 */ |
| }; |
| |
| #define PAINT_BUTTON(hwnd,style,action) \ |
| if (btnPaintFunc[style]) { \ |
| HDC hdc = GetDC( hwnd ); \ |
| (btnPaintFunc[style])(hwnd,hdc,action); \ |
| ReleaseDC( hwnd, hdc ); } |
| |
| static HBITMAP hbitmapCheckBoxes = 0; |
| static WORD checkBoxWidth = 0, checkBoxHeight = 0; |
| |
| |
| LONG ButtonWndProc(HWND hWnd, WORD uMsg, WORD wParam, LONG lParam) |
| { |
| RECT rect; |
| LONG lResult = 0; |
| WND *wndPtr = WIN_FindWndPtr(hWnd); |
| LONG style = wndPtr->dwStyle & 0x0000000F; |
| BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra; |
| |
| switch (uMsg) { |
| case WM_GETDLGCODE: |
| switch(style) |
| { |
| 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, style, ODA_DRAWENTIRE ); |
| break; |
| |
| case WM_CREATE: |
| if (!hbitmapCheckBoxes) |
| { |
| BITMAP bmp; |
| hbitmapCheckBoxes = LoadBitmap( 0, MAKEINTRESOURCE(OBM_CHECKBOXES) ); |
| GetObject( hbitmapCheckBoxes, sizeof(bmp), (LPSTR)&bmp ); |
| checkBoxWidth = bmp.bmWidth / 4; |
| checkBoxHeight = bmp.bmHeight / 3; |
| } |
| |
| if (style < 0L || style >= MAX_BTN_TYPE) |
| lResult = -1L; |
| else |
| { |
| infoPtr->state = BUTTON_UNCHECKED; |
| infoPtr->hFont = 0; |
| lResult = 0L; |
| } |
| break; |
| |
| case WM_ERASEBKGND: |
| break; |
| |
| case WM_PAINT: |
| if (btnPaintFunc[style]) |
| { |
| PAINTSTRUCT ps; |
| HDC hdc = BeginPaint( hWnd, &ps ); |
| (btnPaintFunc[style])( hWnd, hdc, ODA_DRAWENTIRE ); |
| ReleaseDC( hWnd, hdc ); |
| } |
| break; |
| |
| case WM_LBUTTONDOWN: |
| SendMessage( hWnd, BM_SETSTATE, TRUE, 0 ); |
| SetFocus( hWnd ); |
| SetCapture( hWnd ); |
| break; |
| |
| case WM_LBUTTONUP: |
| ReleaseCapture(); |
| SendMessage( hWnd, BM_SETSTATE, FALSE, 0 ); |
| GetClientRect( hWnd, &rect ); |
| if (PtInRect( &rect, MAKEPOINT(lParam) )) |
| { |
| switch(style) |
| { |
| case BS_AUTOCHECKBOX: |
| SendMessage( hWnd, BM_SETCHECK, |
| !(infoPtr->state & BUTTON_CHECKED), 0 ); |
| break; |
| case BS_AUTORADIOBUTTON: |
| SendMessage( hWnd, BM_SETCHECK, TRUE, 0 ); |
| break; |
| case BS_AUTO3STATE: |
| SendMessage( hWnd, BM_SETCHECK, |
| (infoPtr->state & BUTTON_3STATE) ? 0 : |
| ((infoPtr->state & 3) + 1), 0 ); |
| break; |
| } |
| SendMessage( GetParent(hWnd), WM_COMMAND, |
| wndPtr->wIDmenu, MAKELPARAM(hWnd,BN_CLICKED)); |
| } |
| break; |
| |
| case WM_MOUSEMOVE: |
| if (GetCapture() == hWnd) |
| { |
| GetClientRect( hWnd, &rect ); |
| if (PtInRect( &rect, MAKEPOINT(lParam)) ) |
| SendMessage( hWnd, BM_SETSTATE, TRUE, 0 ); |
| else SendMessage( hWnd, BM_SETSTATE, FALSE, 0 ); |
| } |
| break; |
| |
| case WM_NCHITTEST: |
| if(style == BS_GROUPBOX) return HTTRANSPARENT; |
| lResult = DefWindowProc(hWnd, uMsg, wParam, lParam); |
| break; |
| |
| case WM_SETTEXT: |
| DEFWND_SetText( hWnd, (LPSTR)lParam ); |
| PAINT_BUTTON( hWnd, style, ODA_DRAWENTIRE ); |
| return 0; |
| |
| case WM_SETFONT: |
| infoPtr->hFont = wParam; |
| if (lParam) |
| PAINT_BUTTON( hWnd, style, ODA_DRAWENTIRE ); |
| break; |
| |
| case WM_GETFONT: |
| return infoPtr->hFont; |
| |
| case WM_SETFOCUS: |
| infoPtr->state |= BUTTON_HASFOCUS; |
| PAINT_BUTTON( hWnd, style, ODA_FOCUS ); |
| break; |
| |
| case WM_KILLFOCUS: |
| infoPtr->state &= ~BUTTON_HASFOCUS; |
| PAINT_BUTTON( hWnd, style, ODA_FOCUS ); |
| break; |
| |
| case WM_SYSCOLORCHANGE: |
| InvalidateRect(hWnd, NULL, FALSE); |
| break; |
| |
| case BM_SETSTYLE: |
| if ((wParam & 0x0f) >= MAX_BTN_TYPE) break; |
| wndPtr->dwStyle = (wndPtr->dwStyle & 0xfffffff0) |
| | (wParam & 0x0000000f); |
| style = wndPtr->dwStyle & 0x0000000f; |
| PAINT_BUTTON( hWnd, style, ODA_DRAWENTIRE ); |
| break; |
| |
| case BM_GETCHECK: |
| lResult = infoPtr->state & 3; |
| break; |
| |
| case BM_SETCHECK: |
| if (wParam > maxCheckState[style]) |
| wParam = maxCheckState[style]; |
| if ((infoPtr->state & 3) != wParam) |
| { |
| infoPtr->state = (infoPtr->state & ~3) | wParam; |
| PAINT_BUTTON( hWnd, style, ODA_SELECT ); |
| } |
| if(style == BS_AUTORADIOBUTTON && wParam==BUTTON_CHECKED) |
| BUTTON_CheckAutoRadioButton(hWnd); |
| break; |
| |
| case BM_GETSTATE: |
| lResult = infoPtr->state; |
| break; |
| |
| case BM_SETSTATE: |
| if (!wParam != !(infoPtr->state & BUTTON_HIGHLIGHTED)) |
| { |
| if (wParam) infoPtr->state |= BUTTON_HIGHLIGHTED; |
| else infoPtr->state &= ~BUTTON_HIGHLIGHTED; |
| PAINT_BUTTON( hWnd, style, ODA_SELECT ); |
| } |
| break; |
| |
| default: |
| lResult = DefWindowProc(hWnd, uMsg, wParam, lParam); |
| break; |
| } |
| |
| return lResult; |
| } |
| |
| |
| /********************************************************************** |
| * Push Button Functions |
| */ |
| |
| static void PB_Paint( HWND hButton, HDC hDC, WORD action ) |
| { |
| RECT rc; |
| HPEN hOldPen; |
| HBRUSH hOldBrush; |
| char *text; |
| DWORD dwTextSize; |
| int delta; |
| TEXTMETRIC tm; |
| WND *wndPtr = WIN_FindWndPtr( hButton ); |
| BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra; |
| |
| GetClientRect(hButton, &rc); |
| |
| /* Send WM_CTLCOLOR to allow changing the font (the colors are fixed) */ |
| if (infoPtr->hFont) SelectObject( hDC, infoPtr->hFont ); |
| SendMessage( GetParent(hButton), WM_CTLCOLOR, (WORD)hDC, |
| MAKELPARAM(hButton, CTLCOLOR_BTN) ); |
| hOldPen = (HPEN)SelectObject(hDC, sysColorObjects.hpenWindowFrame); |
| hOldBrush = (HBRUSH)SelectObject(hDC, sysColorObjects.hbrushBtnFace); |
| SetBkMode(hDC, TRANSPARENT); |
| Rectangle(hDC, rc.left, rc.top, rc.right, rc.bottom); |
| if (action == ODA_DRAWENTIRE) |
| { |
| SetPixel( hDC, rc.left, rc.top, GetSysColor(COLOR_WINDOW) ); |
| SetPixel( hDC, rc.left, rc.bottom-1, GetSysColor(COLOR_WINDOW) ); |
| SetPixel( hDC, rc.right-1, rc.top, GetSysColor(COLOR_WINDOW) ); |
| SetPixel( hDC, rc.right-1, rc.bottom-1, GetSysColor(COLOR_WINDOW) ); |
| } |
| InflateRect( &rc, -1, -1 ); |
| |
| if ((wndPtr->dwStyle & 0x000f) == BS_DEFPUSHBUTTON) |
| { |
| Rectangle(hDC, rc.left, rc.top, rc.right, rc.bottom); |
| InflateRect( &rc, -1, -1 ); |
| } |
| |
| if (infoPtr->state & BUTTON_HIGHLIGHTED) |
| { |
| /* draw button shadow: */ |
| SelectObject(hDC, sysColorObjects.hbrushBtnShadow ); |
| PatBlt(hDC, rc.left, rc.top, 1, rc.bottom-rc.top, PATCOPY ); |
| PatBlt(hDC, rc.left, rc.top, rc.right-rc.left, 1, PATCOPY ); |
| rc.left += 2; /* To position the text down and right */ |
| rc.top += 2; |
| } |
| else GRAPH_DrawReliefRect( hDC, &rc, 2, 2, FALSE ); |
| |
| /* draw button label, if any: */ |
| text = USER_HEAP_ADDR( wndPtr->hText ); |
| if (text[0]) |
| { |
| SetTextColor( hDC, (wndPtr->dwStyle & WS_DISABLED) ? |
| GetSysColor(COLOR_GRAYTEXT) : GetSysColor(COLOR_BTNTEXT)); |
| DrawText(hDC, text, -1, &rc, |
| DT_SINGLELINE | DT_CENTER | DT_VCENTER); |
| /* do we have the focus? */ |
| if (infoPtr->state & BUTTON_HASFOCUS) |
| { |
| dwTextSize = GetTextExtent(hDC, text, strlen(text) ); |
| delta = ((rc.right - rc.left) - LOWORD(dwTextSize) - 1) >> 1; |
| rc.left += delta; |
| rc.right -= delta; |
| GetTextMetrics(hDC, &tm); |
| delta = ((rc.bottom - rc.top) - tm.tmHeight - 1) >> 1; |
| rc.top += delta; rc.bottom -= delta; |
| DrawFocusRect(hDC, &rc); |
| } |
| } |
| |
| SelectObject(hDC, (HANDLE)hOldPen); |
| SelectObject(hDC, (HANDLE)hOldBrush); |
| } |
| |
| |
| /********************************************************************** |
| * Check Box & Radio Button Functions |
| */ |
| |
| static void CB_Paint( HWND hWnd, HDC hDC, WORD action ) |
| { |
| RECT rc; |
| HBRUSH hBrush; |
| int textlen, delta, x, y; |
| char *text; |
| TEXTMETRIC tm; |
| SIZE size; |
| WND *wndPtr = WIN_FindWndPtr(hWnd); |
| BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra; |
| |
| GetClientRect(hWnd, &rc); |
| |
| if (infoPtr->hFont) SelectObject( hDC, infoPtr->hFont ); |
| hBrush = SendMessage(GetParent(hWnd), WM_CTLCOLOR, (WORD)hDC, |
| MAKELPARAM(hWnd, CTLCOLOR_BTN)); |
| if (action == ODA_DRAWENTIRE) FillRect(hDC, &rc, hBrush); |
| |
| GetTextMetrics(hDC, &tm); |
| delta = (rc.bottom - rc.top - tm.tmHeight) >> 1; |
| text = USER_HEAP_ADDR( wndPtr->hText ); |
| textlen = strlen( text ); |
| |
| /* Draw the check-box bitmap */ |
| x = y = 0; |
| if (infoPtr->state & BUTTON_HIGHLIGHTED) x += 2 * checkBoxWidth; |
| if (infoPtr->state & (BUTTON_CHECKED | BUTTON_3STATE)) x += checkBoxWidth; |
| if (((wndPtr->dwStyle & 0x0f) == BS_RADIOBUTTON) || |
| ((wndPtr->dwStyle & 0x0f) == BS_AUTORADIOBUTTON)) y += checkBoxHeight; |
| else if (infoPtr->state & BUTTON_3STATE) y += 2 * checkBoxHeight; |
| GRAPH_DrawBitmap( hDC, hbitmapCheckBoxes, rc.left, rc.top + delta, |
| x, y, checkBoxWidth, checkBoxHeight, SRCCOPY ); |
| rc.left += checkBoxWidth + tm.tmAveCharWidth / 2; |
| |
| if (action == ODA_DRAWENTIRE) |
| { |
| if (wndPtr->dwStyle & WS_DISABLED) |
| SetTextColor( hDC, GetSysColor(COLOR_GRAYTEXT) ); |
| DrawText(hDC, text, textlen, &rc, DT_SINGLELINE | DT_VCENTER); |
| } |
| |
| if ((action == ODA_FOCUS) || |
| ((action == ODA_DRAWENTIRE) && (infoPtr->state & BUTTON_HASFOCUS))) |
| { |
| GetTextExtentPoint(hDC, text, textlen, &size); |
| rc.top += delta - 1; |
| rc.bottom -= delta + 1; |
| rc.left--; |
| rc.right = rc.left + size.cx + 2; |
| DrawFocusRect(hDC, &rc); |
| } |
| } |
| |
| |
| /********************************************************************** |
| * BUTTON_CheckAutoRadioButton |
| * |
| * hWnd is checked, uncheck everything else in group |
| */ |
| static void BUTTON_CheckAutoRadioButton(HWND hWnd) |
| { |
| HWND parent = GetParent(hWnd); |
| HWND sibling; |
| for(sibling = GetNextDlgGroupItem(parent,hWnd,FALSE); |
| sibling != hWnd; |
| sibling = GetNextDlgGroupItem(parent,sibling,FALSE)) |
| SendMessage(sibling,BM_SETCHECK,BUTTON_UNCHECKED,0); |
| } |
| |
| |
| /********************************************************************** |
| * Group Box Functions |
| */ |
| |
| static void GB_Paint( HWND hWnd, HDC hDC, WORD action ) |
| { |
| RECT rc; |
| char *text; |
| SIZE size; |
| WND *wndPtr = WIN_FindWndPtr( hWnd ); |
| BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra; |
| |
| if (action != ODA_DRAWENTIRE) return; |
| |
| if (infoPtr->hFont) SelectObject( hDC, infoPtr->hFont ); |
| SendMessage( GetParent(hWnd), WM_CTLCOLOR, (WORD)hDC, |
| MAKELPARAM(hWnd, CTLCOLOR_BTN)); |
| SelectObject( hDC, sysColorObjects.hpenWindowFrame ); |
| |
| GetClientRect(hWnd, &rc); |
| |
| MoveTo( hDC, rc.left, rc.top+2 ); |
| LineTo( hDC, rc.right-1, rc.top+2 ); |
| LineTo( hDC, rc.right-1, rc.bottom-1 ); |
| LineTo( hDC, rc.left, rc.bottom-1 ); |
| LineTo( hDC, rc.left, rc.top+2 ); |
| |
| text = USER_HEAP_ADDR( wndPtr->hText ); |
| GetTextExtentPoint(hDC, text, strlen(text), &size); |
| rc.left += 10; |
| rc.right = rc.left + size.cx + 1; |
| rc.bottom = size.cy; |
| if (wndPtr->dwStyle & WS_DISABLED) |
| SetTextColor( hDC, GetSysColor(COLOR_GRAYTEXT) ); |
| DrawText(hDC, text, -1, &rc, DT_SINGLELINE ); |
| } |
| |
| |
| /********************************************************************** |
| * User Button Functions |
| */ |
| |
| static void UB_Paint( HWND hWnd, HDC hDC, WORD action ) |
| { |
| RECT rc; |
| HBRUSH hBrush; |
| WND *wndPtr = WIN_FindWndPtr( hWnd ); |
| BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra; |
| |
| if (action == ODA_SELECT) return; |
| |
| GetClientRect(hWnd, &rc); |
| |
| if (infoPtr->hFont) SelectObject( hDC, infoPtr->hFont ); |
| hBrush = SendMessage(GetParent(hWnd), WM_CTLCOLOR, (WORD)hDC, |
| MAKELPARAM(hWnd, CTLCOLOR_BTN)); |
| FillRect(hDC, &rc, hBrush); |
| |
| if ((action == ODA_FOCUS) || |
| ((action == ODA_DRAWENTIRE) && (infoPtr->state & BUTTON_HASFOCUS))) |
| DrawFocusRect(hDC, &rc); |
| } |
| |
| |
| /********************************************************************** |
| * Ownerdrawn Button Functions |
| */ |
| |
| static void OB_Paint( HWND hWnd, HDC hDC, WORD action ) |
| { |
| HANDLE hDis; |
| LPDRAWITEMSTRUCT lpdis; |
| WND *wndPtr = WIN_FindWndPtr( hWnd ); |
| BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra; |
| |
| if (!(hDis = USER_HEAP_ALLOC(GMEM_MOVEABLE, sizeof(DRAWITEMSTRUCT)))) |
| return; |
| lpdis = (LPDRAWITEMSTRUCT)USER_HEAP_ADDR(hDis); |
| lpdis->CtlType = ODT_BUTTON; |
| lpdis->CtlID = wndPtr->wIDmenu; |
| lpdis->itemID = 0; |
| lpdis->itemAction = action; |
| lpdis->itemState = (infoPtr->state & BUTTON_HASFOCUS) ? ODS_FOCUS : 0 | |
| (infoPtr->state & BUTTON_HIGHLIGHTED) ? ODS_SELECTED : 0 | |
| (wndPtr->dwStyle & WS_DISABLED) ? ODS_DISABLED : 0; |
| lpdis->hwndItem = hWnd; |
| lpdis->hDC = hDC; |
| GetClientRect( hWnd, &lpdis->rcItem ); |
| lpdis->itemData = 0; |
| SendMessage(GetParent(hWnd), WM_DRAWITEM, 1, (LPARAM)lpdis); |
| USER_HEAP_FREE(hDis); |
| } |
| |
| |
