mirror of https://github.com/bsnes-emu/bsnes.git
55 lines
1.7 KiB
C++
Executable File
55 lines
1.7 KiB
C++
Executable File
static LRESULT CALLBACK Canvas_windowProc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam) {
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if(msg == WM_PAINT) {
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Object *object = (Object*)GetWindowLongPtr(hwnd, GWLP_USERDATA);
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if(object && dynamic_cast<Canvas*>(object)) {
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Canvas &canvas = (Canvas&)*object;
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canvas.update();
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}
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}
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return DefWindowProc(hwnd, msg, wparam, lparam);
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}
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uint32_t* pCanvas::buffer() {
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return bufferRGB;
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}
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void pCanvas::setGeometry(const Geometry &geometry) {
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delete[] bufferRGB;
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bufferRGB = new uint32_t[geometry.width * geometry.height]();
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pWidget::setGeometry(geometry);
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update();
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}
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void pCanvas::update() {
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RECT rc;
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GetClientRect(hwnd, &rc);
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unsigned width = rc.right, height = rc.bottom;
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BITMAPINFO bmi;
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memset(&bmi, 0, sizeof(BITMAPINFO));
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bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
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bmi.bmiHeader.biPlanes = 1;
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bmi.bmiHeader.biBitCount = 32;
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bmi.bmiHeader.biCompression = BI_RGB;
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bmi.bmiHeader.biWidth = width;
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bmi.bmiHeader.biHeight = -height; //GDI stores bitmaps upside now; negative height flips bitmap
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bmi.bmiHeader.biSizeImage = sizeof(uint32_t) * width * height;
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PAINTSTRUCT ps;
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BeginPaint(hwnd, &ps);
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SetDIBitsToDevice(ps.hdc, 0, 0, width, height, 0, 0, 0, height, (void*)bufferRGB, &bmi, DIB_RGB_COLORS);
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EndPaint(hwnd, &ps);
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InvalidateRect(hwnd, 0, false);
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}
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void pCanvas::constructor() {
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bufferRGB = new uint32_t[256 * 256]();
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setParent(Window::None);
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}
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void pCanvas::setParent(Window &parent) {
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if(hwnd) DestroyWindow(hwnd);
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hwnd = CreateWindow(L"phoenix_canvas", L"", WS_CHILD | WS_VISIBLE, 0, 0, 0, 0, parent.p.hwnd, (HMENU)id, GetModuleHandle(0), 0);
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SetWindowLongPtr(hwnd, GWLP_USERDATA, (LONG_PTR)&canvas);
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}
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