diff options
Diffstat (limited to 'widgetfactory.cpp')
| -rw-r--r-- | widgetfactory.cpp | 126 |
1 files changed, 120 insertions, 6 deletions
diff --git a/widgetfactory.cpp b/widgetfactory.cpp index 53ba72d..3c8e35a 100644 --- a/widgetfactory.cpp +++ b/widgetfactory.cpp @@ -28,6 +28,8 @@ static HBRUSH green; static HBRUSH blue; static HBRUSH white; +BOOL (WINAPI *fnGradientFill)(HDC, PTRIVERTEX, ULONG, PVOID, ULONG, ULONG) = NULL; + LRESULT handleMessage(void *closure, HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam) { @@ -77,6 +79,14 @@ handleCommand(void *closure, HWND window, WORD notificationcode, WORD sourceid, if (control != NULL && sourceid == ID_B2) { MessageBox(window, TEXT("Hello World!"), TEXT("Hello"), MB_ICONASTERISK|MB_OK); } + if (control != NULL && sourceid == ID_B3) { + ALFColor oldcolor = ALF_GetBackgroundColor(window); + if (oldcolor == ALF_COLOR_TRANSPARENT) { + ALF_SetBackgroundColor(window, ALF_COLOR_SYS(COLOR_BTNFACE)); + } else { + ALF_SetBackgroundColor(window, ALF_COLOR_TRANSPARENT); + } + } return 0; } @@ -85,10 +95,108 @@ static void handlePaint(void *closure, HWND window, HDC dc, RECT *rcPaint) { (void)closure; - (void)window; - SetBkColor(dc, RGB(255, 0, 0)); - ExtTextOut(dc, 0, 0, ETO_OPAQUE, rcPaint, TEXT(""), 0, NULL); + ALFColor color = ALF_GetBackgroundColor(window); + + if (color == ALF_COLOR_TRANSPARENT) { + RECT rcClient; + GetClientRect(window, &rcClient); + + if (fnGradientFill) { + TRIVERTEX vertex[6]; + vertex[0].x = rcClient.left; + vertex[0].y = rcClient.top; + vertex[0].Red = 0xff00; + vertex[0].Green = 0x8000; + vertex[0].Blue = 0x0000; + vertex[0].Alpha = 0x0000; + + vertex[1].x = rcClient.left; + vertex[1].y = rcClient.bottom; + vertex[1].Red = 0x9000; + vertex[1].Green = 0x0000; + vertex[1].Blue = 0x9000; + vertex[1].Alpha = 0x0000; + + vertex[2].x = rcClient.right; + vertex[2].y = rcClient.top; + vertex[2].Red = 0x9000; + vertex[2].Green = 0x0000; + vertex[2].Blue = 0x9000; + vertex[2].Alpha = 0x0000; + + vertex[3].x = rcClient.right; + vertex[3].y = rcClient.bottom; + vertex[3].Red = 0x0000; + vertex[3].Green = 0xd000; + vertex[3].Blue = 0xd000; + vertex[3].Alpha = 0x0000; + + vertex[4].x = rcClient.left; + vertex[4].y = rcClient.bottom; + vertex[4].Red = 0x9000; + vertex[4].Green = 0x0000; + vertex[4].Blue = 0x9000; + vertex[4].Alpha = 0x0000; + + vertex[5].x = rcClient.right; + vertex[5].y = rcClient.top; + vertex[5].Red = 0x9000; + vertex[5].Green = 0x0000; + vertex[5].Blue = 0x9000; + vertex[5].Alpha = 0x0000; + + GRADIENT_TRIANGLE gTriangle[2]; + gTriangle[0].Vertex1 = 0; + gTriangle[0].Vertex2 = 1; + gTriangle[0].Vertex3 = 2; + gTriangle[1].Vertex1 = 3; + gTriangle[1].Vertex2 = 4; + gTriangle[1].Vertex3 = 5; + + fnGradientFill(dc, vertex, 6, gTriangle, 2, GRADIENT_FILL_TRIANGLE); + } else { + HBRUSH white = (HBRUSH)GetStockObject(WHITE_BRUSH); + HBRUSH gray = (HBRUSH)GetStockObject(GRAY_BRUSH); + + int s = 10; + for (int y = rcClient.top; y < rcClient.bottom; y += 2*s) { + for (int x = rcClient.left; x < rcClient.right; x += 2*s) { + RECT a = { x, y, x + s, y + s }; + RECT b = { x + s, y, x + s + s, y + s }; + RECT c = { x, y + s, x + s, y + s + s }; + RECT d = { x + s, y + s, x + s + s, y + s + s }; + FillRect(dc, &a, white); + FillRect(dc, &b, gray); + FillRect(dc, &c, gray); + FillRect(dc, &d, white); + } + } + } + } else { + if (rcPaint) { + SetBkColor(dc, ALF_ColorToGdi(color)); + ExtTextOut(dc, 0, 0, ETO_OPAQUE, rcPaint, TEXT(""), 0, NULL); + } else { + RECT rcClient; + GetClientRect(window, &rcClient); + + SetBkColor(dc, ALF_ColorToGdi(color)); + ExtTextOut(dc, 0, 0, ETO_OPAQUE, &rcClient, TEXT(""), 0, NULL); + } + } +} + +static void handleWindowPosChanged(void *closure, HWND window, WINDOWPOS *pos) +{ + (void)closure; + + if (!(pos->flags & SWP_NOSIZE)) { + ALFColor bgcolor = ALF_GetBackgroundColor(window); + + if (bgcolor == ALF_COLOR_TRANSPARENT) + ALF_InvalidateBackground(window); + } } int CALLBACK @@ -110,6 +218,13 @@ WinMain blue = CreateSolidBrush(RGB(0,0,255)); white = CreateSolidBrush(RGB(255,255,255)); + if (LOBYTE(LOWORD(GetVersion())) >= 4) { + HMODULE hMsimg32 = LoadLibraryA("msimg32.dll"); + if (hMsimg32) { + *((void**)&fnGradientFill) = (void*)GetProcAddress(hMsimg32, "GradientFill"); + } + } + ALFWindowClassParams cparams; ZeroMemory(&cparams, sizeof(cparams)); @@ -117,6 +232,7 @@ WinMain cparams.vtbl.message = handleMessage; cparams.vtbl.command = handleCommand; cparams.vtbl.paint = handlePaint; + cparams.vtbl.windowposchanged = handleWindowPosChanged; ALF_Initialize(); @@ -150,7 +266,7 @@ WinMain ALF_AddLabel(win, ID_LBL4, 0, 3, TEXT("&Editable Combo Box:")); HWND hwndCombo1 = ALF_AddEditableComboBox(win, ID_COMBO1, 1, 3, TEXT("Hello!")); - ALF_AddButton(win, ID_B3, 3, 3, TEXT("Ok")); + ALF_AddButton(win, ID_B3, 3, 3, TEXT("Change Background")); ALF_ComboBoxInsertString(hwndCombo1, 0, TEXT("Hello World!")); ALF_ComboBoxInsertString(hwndCombo1, -1, TEXT("Goodbye World!")); @@ -234,8 +350,6 @@ WinMain EnableWindow(ALF_WidgetHwndById(win, ID_LBL3), FALSE); - SendMessage(win, ALF_WM_SETBGCOLOR, (WPARAM)ALF_COLOR_TRANSPARENT, 0); - ALF_ResizeWindow(win, 1, 1); ALF_ShowModal(win); |