gfx/thebes/gfxQtNativeRenderer.cpp

   1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
   2  * This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #include "gfxQtNativeRenderer.h"
   7 #include "gfxContext.h"
   8 #include "gfxXlibSurface.h"
   9
  10 nsresult
  11 gfxQtNativeRenderer::Draw(gfxContext* ctx, nsIntSize size,
  12                           uint32_t flags, Screen* screen, Visual* visual,
  13                           DrawOutput* output)
  14 {
  15     Display *dpy = DisplayOfScreen(screen);
  16     bool isOpaque = (flags & DRAW_IS_OPAQUE) ? true : false;
  17     int screenNumber = screen - ScreenOfDisplay(dpy, 0);
  18
  19     if (!isOpaque) {
  20         int depth = 32;
  21         XVisualInfo vinfo;
  22         int foundVisual = XMatchVisualInfo(dpy, screenNumber,
  23                                            depth, TrueColor,
  24                                            &vinfo);
  25         if (!foundVisual)
  26             return NS_ERROR_FAILURE;
  27
  28         visual = vinfo.visual;
  29     }
  30
  31     nsRefPtr<gfxXlibSurface> xsurf =
  32         gfxXlibSurface::Create(screen, visual,
  33                                gfxIntSize(size.width, size.height));
  34
  35     if (!isOpaque) {
  36         nsRefPtr<gfxContext> tempCtx = new gfxContext(xsurf);
  37         tempCtx->SetOperator(gfxContext::OPERATOR_CLEAR);
  38         tempCtx->Paint();
  39     }
  40
  41     nsresult rv = DrawWithXlib(xsurf.get(), nsIntPoint(0, 0), NULL, 0);
  42
  43     if (NS_FAILED(rv))
  44         return rv;
  45
  46     ctx->SetSource(xsurf);
  47     ctx->Paint();
  48
  49     return rv;
  50 }