| Index: skia/ext/canvas_paint_linux.h
|
| ===================================================================
|
| --- skia/ext/canvas_paint_linux.h (revision 20870)
|
| +++ skia/ext/canvas_paint_linux.h (working copy)
|
| @@ -1,101 +1,101 @@
|
| -
|
| -// Copyright (c) 2009 The Chromium Authors. All rights reserved.
|
| -// Use of this source code is governed by a BSD-style license that can be
|
| -// found in the LICENSE file.
|
| -
|
| -#ifndef SKIA_EXT_CANVAS_PAINT_LINUX_H_
|
| -#define SKIA_EXT_CANVAS_PAINT_LINUX_H_
|
| -
|
| -#include "skia/ext/platform_canvas.h"
|
| -
|
| -#include <gdk/gdk.h>
|
| -
|
| -namespace skia {
|
| -
|
| -// A class designed to translate skia painting into a region in a
|
| -// GdkWindow. This class has been adapted from the class with the same name in
|
| -// platform_canvas_win.h. On construction, it will set up a context for
|
| -// painting into, and on destruction, it will commit it to the GdkWindow.
|
| -template <class T>
|
| -class CanvasPaintT : public T {
|
| - public:
|
| - // This constructor assumes the result is opaque.
|
| - explicit CanvasPaintT(GdkEventExpose* event)
|
| - : surface_(NULL),
|
| - window_(event->window),
|
| - rectangle_(event->area),
|
| - composite_alpha_(false) {
|
| - init(true);
|
| - }
|
| -
|
| - CanvasPaintT(GdkEventExpose* event, bool opaque)
|
| - : surface_(NULL),
|
| - window_(event->window),
|
| - rectangle_(event->area),
|
| - composite_alpha_(false) {
|
| - init(opaque);
|
| - }
|
| -
|
| - virtual ~CanvasPaintT() {
|
| - if (!is_empty()) {
|
| - T::restoreToCount(1);
|
| -
|
| - // Blit the dirty rect to the window.
|
| - cairo_t* cr = gdk_cairo_create(window_);
|
| - if (composite_alpha_)
|
| - cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
|
| - cairo_set_source_surface(cr, surface_, rectangle_.x, rectangle_.y);
|
| - cairo_rectangle(cr, rectangle_.x, rectangle_.y,
|
| - rectangle_.width, rectangle_.height);
|
| - cairo_fill(cr);
|
| - cairo_destroy(cr);
|
| - }
|
| - }
|
| -
|
| - // Sets whether the bitmap is composited in such a way that the alpha channel
|
| - // is honored. This is only useful if you've enabled an RGBA colormap on the
|
| - // widget. The default is false.
|
| - void set_composite_alpha(bool composite_alpha) {
|
| - composite_alpha_ = composite_alpha;
|
| - }
|
| -
|
| - // Returns true if the invalid region is empty. The caller should call this
|
| - // function to determine if anything needs painting.
|
| - bool is_empty() const {
|
| - return rectangle_.width == 0 || rectangle_.height == 0;
|
| - }
|
| -
|
| - const GdkRectangle& rectangle() const {
|
| - return rectangle_;
|
| - }
|
| -
|
| - private:
|
| - void init(bool opaque) {
|
| - if (!T::initialize(rectangle_.width, rectangle_.height, opaque, NULL)) {
|
| - // Cause a deliberate crash;
|
| - *(char*) 0 = 0;
|
| - }
|
| -
|
| - // Need to translate so that the dirty region appears at the origin of the
|
| - // surface.
|
| - T::translate(-SkIntToScalar(rectangle_.x), -SkIntToScalar(rectangle_.y));
|
| -
|
| - surface_ = T::getTopPlatformDevice().beginPlatformPaint();
|
| - }
|
| -
|
| - cairo_surface_t* surface_;
|
| - GdkWindow* window_;
|
| - GdkRectangle rectangle_;
|
| - // See description above setter.
|
| - bool composite_alpha_;
|
| -
|
| - // Disallow copy and assign.
|
| - CanvasPaintT(const CanvasPaintT&);
|
| - CanvasPaintT& operator=(const CanvasPaintT&);
|
| -};
|
| -
|
| -typedef CanvasPaintT<PlatformCanvas> PlatformCanvasPaint;
|
| -
|
| -} // namespace skia
|
| -
|
| -#endif // SKIA_EXT_CANVAS_PAINT_LINUX_H_
|
| +
|
| +// Copyright (c) 2009 The Chromium Authors. All rights reserved.
|
| +// Use of this source code is governed by a BSD-style license that can be
|
| +// found in the LICENSE file.
|
| +
|
| +#ifndef SKIA_EXT_CANVAS_PAINT_LINUX_H_
|
| +#define SKIA_EXT_CANVAS_PAINT_LINUX_H_
|
| +
|
| +#include "skia/ext/platform_canvas.h"
|
| +
|
| +#include <gdk/gdk.h>
|
| +
|
| +namespace skia {
|
| +
|
| +// A class designed to translate skia painting into a region in a
|
| +// GdkWindow. This class has been adapted from the class with the same name in
|
| +// platform_canvas_win.h. On construction, it will set up a context for
|
| +// painting into, and on destruction, it will commit it to the GdkWindow.
|
| +template <class T>
|
| +class CanvasPaintT : public T {
|
| + public:
|
| + // This constructor assumes the result is opaque.
|
| + explicit CanvasPaintT(GdkEventExpose* event)
|
| + : surface_(NULL),
|
| + window_(event->window),
|
| + rectangle_(event->area),
|
| + composite_alpha_(false) {
|
| + init(true);
|
| + }
|
| +
|
| + CanvasPaintT(GdkEventExpose* event, bool opaque)
|
| + : surface_(NULL),
|
| + window_(event->window),
|
| + rectangle_(event->area),
|
| + composite_alpha_(false) {
|
| + init(opaque);
|
| + }
|
| +
|
| + virtual ~CanvasPaintT() {
|
| + if (!is_empty()) {
|
| + T::restoreToCount(1);
|
| +
|
| + // Blit the dirty rect to the window.
|
| + cairo_t* cr = gdk_cairo_create(window_);
|
| + if (composite_alpha_)
|
| + cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
|
| + cairo_set_source_surface(cr, surface_, rectangle_.x, rectangle_.y);
|
| + cairo_rectangle(cr, rectangle_.x, rectangle_.y,
|
| + rectangle_.width, rectangle_.height);
|
| + cairo_fill(cr);
|
| + cairo_destroy(cr);
|
| + }
|
| + }
|
| +
|
| + // Sets whether the bitmap is composited in such a way that the alpha channel
|
| + // is honored. This is only useful if you've enabled an RGBA colormap on the
|
| + // widget. The default is false.
|
| + void set_composite_alpha(bool composite_alpha) {
|
| + composite_alpha_ = composite_alpha;
|
| + }
|
| +
|
| + // Returns true if the invalid region is empty. The caller should call this
|
| + // function to determine if anything needs painting.
|
| + bool is_empty() const {
|
| + return rectangle_.width == 0 || rectangle_.height == 0;
|
| + }
|
| +
|
| + const GdkRectangle& rectangle() const {
|
| + return rectangle_;
|
| + }
|
| +
|
| + private:
|
| + void init(bool opaque) {
|
| + if (!T::initialize(rectangle_.width, rectangle_.height, opaque, NULL)) {
|
| + // Cause a deliberate crash;
|
| + *(char*) 0 = 0;
|
| + }
|
| +
|
| + // Need to translate so that the dirty region appears at the origin of the
|
| + // surface.
|
| + T::translate(-SkIntToScalar(rectangle_.x), -SkIntToScalar(rectangle_.y));
|
| +
|
| + surface_ = T::getTopPlatformDevice().beginPlatformPaint();
|
| + }
|
| +
|
| + cairo_surface_t* surface_;
|
| + GdkWindow* window_;
|
| + GdkRectangle rectangle_;
|
| + // See description above setter.
|
| + bool composite_alpha_;
|
| +
|
| + // Disallow copy and assign.
|
| + CanvasPaintT(const CanvasPaintT&);
|
| + CanvasPaintT& operator=(const CanvasPaintT&);
|
| +};
|
| +
|
| +typedef CanvasPaintT<PlatformCanvas> PlatformCanvasPaint;
|
| +
|
| +} // namespace skia
|
| +
|
| +#endif // SKIA_EXT_CANVAS_PAINT_LINUX_H_
|
|
|
| Property changes on: skia/ext/canvas_paint_linux.h
|
| ___________________________________________________________________
|
| Name: svn:eol-style
|
| + LF
|
|
|
|
|