зеркало из https://github.com/mozilla/gecko-dev.git
Bug 499595. Win32 test plugin needs to double-buffer and look more like other platforms' test plugins. r=jmathies
This commit is contained in:
Robert O'Callahan
Родитель
54e00abced
Коммит
fa5c580553
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@ -35,15 +35,11 @@
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#include "nptest_platform.h"
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#include <windows.h>
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#include <unknwn.h>
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#include <gdiplus.h>
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using namespace Gdiplus;
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#pragma comment(lib, "gdiplus.lib")
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#pragma comment(lib, "msimg32.lib")
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void SetSubclass(HWND hWnd, InstanceData* instanceData);
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void ClearSubclass(HWND hWnd);
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Color GetColorsFromRGBA(PRUint32 rgba);
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LRESULT CALLBACK PluginWndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
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bool
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@ -86,6 +82,90 @@ pluginWidgetInit(InstanceData* instanceData, void* oldWindow)
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SetSubclass(hWnd, instanceData);
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}
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static void
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drawToDC(InstanceData* instanceData, HDC dc,
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int x, int y, int width, int height)
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{
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HBITMAP offscreenBitmap = ::CreateCompatibleBitmap(dc, width, height);
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if (!offscreenBitmap)
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return;
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HDC offscreenDC = ::CreateCompatibleDC(dc);
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if (!offscreenDC) {
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::DeleteObject(offscreenBitmap);
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return;
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}
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HBITMAP oldOffscreenBitmap =
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(HBITMAP)::SelectObject(offscreenDC, offscreenBitmap);
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::SetBkMode(offscreenDC, TRANSPARENT);
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BYTE alpha = 255;
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RECT fill = { 0, 0, width, height };
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switch (instanceData->scriptableObject->drawMode) {
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case DM_DEFAULT:
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{
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HBRUSH brush = ::CreateSolidBrush(RGB(0, 0, 0));
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if (brush) {
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::FillRect(offscreenDC, &fill, brush);
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::DeleteObject(brush);
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}
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if (width > 6 && height > 6) {
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brush = ::CreateSolidBrush(RGB(192, 192, 192));
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if (brush) {
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RECT inset = { 3, 3, width - 3, height - 3 };
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::FillRect(offscreenDC, &inset, brush);
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::DeleteObject(brush);
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}
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}
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const char* uaString = NPN_UserAgent(instanceData->npp);
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if (uaString && width > 10 && height > 10) {
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HFONT font =
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::CreateFontA(20, 0, 0, 0, 400, FALSE, FALSE, FALSE,
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DEFAULT_CHARSET, OUT_DEFAULT_PRECIS,
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CLIP_DEFAULT_PRECIS, 5, // CLEARTYPE_QUALITY
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DEFAULT_PITCH, "Arial");
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if (font) {
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HFONT oldFont = (HFONT)::SelectObject(offscreenDC, font);
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RECT inset = { 5, 5, width - 5, height - 5 };
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::DrawTextA(offscreenDC, uaString, -1, &inset,
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DT_LEFT | DT_TOP | DT_NOPREFIX | DT_WORDBREAK);
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::SelectObject(offscreenDC, oldFont);
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::DeleteObject(font);
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}
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}
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}
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break;
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case DM_SOLID_COLOR:
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{
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PRUint32 rgba = instanceData->scriptableObject->drawColor;
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BYTE r = ((rgba & 0xFF0000) >> 16);
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BYTE g = ((rgba & 0xFF00) >> 8);
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BYTE b = (rgba & 0xFF);
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alpha = ((rgba & 0xFF000000) >> 24);
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HBRUSH brush = ::CreateSolidBrush(RGB(r, g, b));
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if (brush) {
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::FillRect(offscreenDC, &fill, brush);
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::DeleteObject(brush);
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}
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}
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break;
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}
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BLENDFUNCTION blendFunc;
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blendFunc.BlendOp = AC_SRC_OVER;
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blendFunc.BlendFlags = 0;
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blendFunc.SourceConstantAlpha = alpha;
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blendFunc.AlphaFormat = 0;
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::AlphaBlend(dc, x, y, width, height, offscreenDC, 0, 0, width, height,
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blendFunc);
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::SelectObject(offscreenDC, oldOffscreenBitmap);
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::DeleteObject(offscreenDC);
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::DeleteObject(offscreenBitmap);
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}
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void
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pluginDraw(InstanceData* instanceData)
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{
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@ -93,10 +173,6 @@ pluginDraw(InstanceData* instanceData)
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if (!npp)
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return;
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const char* uaString = NPN_UserAgent(npp);
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if (!uaString)
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return;
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HDC hdc = NULL;
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PAINTSTRUCT ps;
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@ -112,74 +188,13 @@ pluginDraw(InstanceData* instanceData)
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// we share the drawing surface with the rest of the browser.
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int savedDCID = SaveDC(hdc);
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// Reset the clipping region
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SelectClipRgn(hdc, NULL);
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// Initialize GDI+.
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GdiplusStartupInput gdiplusStartupInput;
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ULONG_PTR gdiplusToken;
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GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, NULL);
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// When we have a widget, window.x/y are meaningless since our widget
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// is always positioned correctly and we just draw into it at 0,0.
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int x = instanceData->hasWidget ? 0 : instanceData->window.x;
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int y = instanceData->hasWidget ? 0 : instanceData->window.y;
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int width = instanceData->window.width;
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int height = instanceData->window.height;
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// Calculate the rectangle coordinates from the instanceData information
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Rect rect(x, y, width, height);
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// Create a layout rect for the text
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RectF boundRect((float)x, (float)y, (float)width, (float)height);
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boundRect.Inflate(-10.0, -10.0);
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switch(instanceData->scriptableObject->drawMode) {
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case DM_DEFAULT:
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{
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Graphics graphics(hdc);
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// Fill in the background and border
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Pen blackPen(Color(255, 0, 0, 0), 1);
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SolidBrush grayBrush(Color(255, 192, 192, 192));
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graphics.FillRectangle(&grayBrush, rect);
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graphics.DrawRectangle(&blackPen, rect);
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// Load a nice font
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FontFamily fontFamily(L"Helvetica");
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Font font(&fontFamily, 20, FontStyleBold, UnitPoint);
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StringFormat stringFormat;
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SolidBrush solidBrush(Color(255, 0, 0, 0));
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// Center the text string
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stringFormat.SetAlignment(StringAlignmentCenter);
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stringFormat.SetLineAlignment(StringAlignmentCenter);
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// Request anti-aliased text
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graphics.SetTextRenderingHint(TextRenderingHintAntiAlias);
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WCHAR wBuf[1024];
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memset(&wBuf, 0, sizeof(wBuf));
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MultiByteToWideChar(CP_ACP, 0, uaString, -1, wBuf, 1024);
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// Draw the string
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graphics.DrawString(wBuf, -1, &font, boundRect, &stringFormat, &solidBrush);
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}
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break;
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case DM_SOLID_COLOR:
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{
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// Fill the plugin window with a solid color specified by the params
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Graphics graphics(hdc);
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SolidBrush brush(GetColorsFromRGBA(instanceData->scriptableObject->drawColor));
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graphics.FillRectangle(&brush, rect.X, rect.Y, rect.Width, rect.Height);
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}
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break;
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}
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// Shutdown GDI+
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GdiplusShutdown(gdiplusToken);
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drawToDC(instanceData, hdc, x, y, width, height);
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// Pop our hdc changes off the resource stack
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RestoreDC(hdc, savedDCID);
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@ -293,16 +308,3 @@ SetSubclass(HWND hWnd, InstanceData* instanceData)
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WNDPROC origProc = (WNDPROC)::SetWindowLongPtr(hWnd, GWLP_WNDPROC, (LONG_PTR)PluginWndProc);
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SetProp(hWnd, "MozillaWndProc", (HANDLE)origProc);
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}
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/* utils */
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Color
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GetColorsFromRGBA(PRUint32 rgba)
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{
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BYTE r, g, b, a;
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b = (rgba & 0xFF);
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g = ((rgba & 0xFF00) >> 8);
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r = ((rgba & 0xFF0000) >> 16);
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a = ((rgba & 0xFF000000) >> 24);
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return Color(a, r, g, b);
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}
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