diff options
Diffstat (limited to 'dmagick/internal')
| -rw-r--r-- | dmagick/internal/Windows.d | 84 |
1 files changed, 19 insertions, 65 deletions
diff --git a/dmagick/internal/Windows.d b/dmagick/internal/Windows.d index 1358253..50dee7b 100644 --- a/dmagick/internal/Windows.d +++ b/dmagick/internal/Windows.d @@ -12,28 +12,28 @@ import dmagick.Image; import dmagick.Exception; import dmagick.Geometry; -Window[HWND] windows; - class Window { Image image; size_t height; size_t width; - + WNDCLASS wndclass; HINSTANCE hInstance; HWND hwnd; MSG msg; + static Window[HWND] windows; + this(Image image) { this.image = image; - + height = image.rows; - width = image.columns; - + width = image.columns; + hInstance = cast(HINSTANCE) GetModuleHandleA(null); - + wndclass.style = CS_HREDRAW | CS_VREDRAW; wndclass.lpfnWndProc = &WndProc; wndclass.cbClsExtra = 0; @@ -49,15 +49,15 @@ class Window throw new DMagickException("This program requires Windows NT!"); RECT rect = RECT(0,0, width,height); - AdjustWindowRect(&rect, WS_OVERLAPPEDWINDOW, false); - - hwnd = CreateWindowA("DMagick", "DMagick", WS_OVERLAPPEDWINDOW, + AdjustWindowRect(&rect, WS_CAPTION | WS_SYSMENU, false); + + hwnd = CreateWindowA("DMagick", "DMagick", WS_CAPTION | WS_SYSMENU, CW_USEDEFAULT, CW_USEDEFAULT, rect.right-rect.left, rect.bottom-rect.top, null, null, hInstance, null); windows[hwnd] = this; } - + void display() { ShowWindow(hwnd, SW_SHOWNORMAL); @@ -69,57 +69,26 @@ class Window DispatchMessageA(&msg); } } - + extern(Windows) static LRESULT WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) { - static int cxClient, cyClient, cxSource, cySource; - int x, y; HDC hdc; PAINTSTRUCT ps; - static HDC hdcMem; - static HBITMAP hbmMem; - static HANDLE hOld; - RECT rect; - switch (message) { - case WM_SIZE: - cxClient = LOWORD(lParam); - cyClient = HIWORD(lParam); - return 0; - case WM_ERASEBKGND: // don't redraw bg return 1; - + case WM_PAINT: - { // Get DC for window hdc = BeginPaint(hwnd, &ps); - // Create an off-screen DC for double-buffering - hdcMem = CreateCompatibleDC(hdc); - hbmMem = CreateCompatibleBitmap(hdc, cxClient, cyClient); - hOld = SelectObject(hdcMem, hbmMem); - - // Draw into hdcMem - GetClientRect(hwnd, &rect); - FillRect(hdcMem, &rect, GetStockObject(BLACK_BRUSH)); - - windows[hwnd].DrawAlphaBlend(hwnd, hdcMem); - - // Transfer the off-screen DC to the screen - BitBlt(hdc, 0, 0, cxClient, cyClient, hdcMem, 0, 0, SRCCOPY); - - // Free-up the off-screen DC - SelectObject(hdcMem, hOld); - DeleteObject(hbmMem); - DeleteDC (hdcMem); + windows[hwnd].DrawAlphaBlend(hwnd, hdc); EndPaint(hwnd, &ps); return 0; - } - + case WM_DESTROY: windows[hwnd] = null; PostQuitMessage(0); @@ -130,7 +99,7 @@ class Window return DefWindowProcA(hwnd, message, wParam, lParam); } - + void DrawAlphaBlend(HWND hWnd, HDC hdcwnd) { HDC hdc; // handle of the DC we will create @@ -139,7 +108,7 @@ class Window VOID* pvBits; // pointer to DIB section ULONG ulWindowWidth, ulWindowHeight; // window width/height RECT rt; // used for getting window dimensions - + // get window dimensions GetClientRect(hWnd, &rt); @@ -153,7 +122,7 @@ class Window // create a DC for our bitmap -- the source DC for GdiAlphaBlend hdc = CreateCompatibleDC(hdcwnd); - + // setup bitmap info bmi.bmiHeader.biSize = BITMAPINFOHEADER.sizeof; bmi.bmiHeader.biWidth = width; @@ -167,12 +136,11 @@ class Window hbitmap = CreateDIBSection(hdc, &bmi, DIB_RGB_COLORS, &pvBits, null, 0x0); SelectObject(hdc, hbitmap); - auto area = Geometry(width, height, 0, 0); enum channels = "BGRA"; // win32 uses BGR(A) + Geometry area = Geometry(width, height); byte[] arr = (cast(byte*)pvBits)[0 .. (area.width * area.height) * channels.length]; image.exportPixels(area, arr, channels); - //TODO: Rezize image. BitBlt(hdcwnd, 0, 0, width, height, hdc, 0, 0, SRCCOPY); DeleteObject(hbitmap); @@ -184,24 +152,10 @@ pragma(lib, "gdi32.lib"); const AC_SRC_OVER = 0x00; const AC_SRC_ALPHA = 0x01; -const GWLP_USERDATA = -21; enum DWORD BI_RGB = 0; enum UINT DIB_RGB_COLORS = 0; -struct BLENDFUNCTION -{ - BYTE BlendOp; - BYTE BlendFlags; - BYTE SourceConstantAlpha; - BYTE AlphaFormat; -} - -struct AlphaBlendType -{ - static normal = BLENDFUNCTION(AC_SRC_OVER, 0, 255, AC_SRC_ALPHA); -} - extern(Windows) BOOL BitBlt(HDC, int, int, int, int, HDC, int, int, DWORD); extern(Windows) HBITMAP CreateCompatibleBitmap(HDC, int, int); extern(Windows) HBITMAP CreateDIBSection(HDC, const(BITMAPINFO)*, UINT, void**, HANDLE, DWORD);
\ No newline at end of file |