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Side by Side Diff: chrome/browser/views/tabs/native_view_photobooth_win.cc

Issue 2825018: Canvas refactoring part 3.... (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: '' Created 10 years, 6 months ago
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1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "chrome/browser/views/tabs/native_view_photobooth_win.h" 5 #include "chrome/browser/views/tabs/native_view_photobooth_win.h"
6 6
7 #include "chrome/browser/tab_contents/tab_contents.h" 7 #include "chrome/browser/tab_contents/tab_contents.h"
8 #include "gfx/canvas.h" 8 #include "gfx/canvas_skia.h"
9 #include "gfx/point.h" 9 #include "gfx/point.h"
10 #include "third_party/skia/include/core/SkBitmap.h" 10 #include "third_party/skia/include/core/SkBitmap.h"
11 #include "views/widget/widget_win.h" 11 #include "views/widget/widget_win.h"
12 12
13 namespace { 13 namespace {
14 14
15 static BOOL CALLBACK MonitorEnumProc(HMONITOR monitor, HDC monitor_dc, 15 static BOOL CALLBACK MonitorEnumProc(HMONITOR monitor, HDC monitor_dc,
16 RECT* monitor_rect, LPARAM data) { 16 RECT* monitor_rect, LPARAM data) {
17 gfx::Point* point = reinterpret_cast<gfx::Point*>(data); 17 gfx::Point* point = reinterpret_cast<gfx::Point*>(data);
18 if (monitor_rect->right > point->x() && monitor_rect->bottom > point->y()) { 18 if (monitor_rect->right > point->x() && monitor_rect->bottom > point->y()) {
(...skipping 74 matching lines...) Expand 10 before | Expand all | Expand 10 after
93 GetParent(current_hwnd_) != capture_window_->GetNativeView()) { 93 GetParent(current_hwnd_) != capture_window_->GetNativeView()) {
94 Replace(current_hwnd_); 94 Replace(current_hwnd_);
95 } 95 }
96 96
97 // We compel the contained HWND to paint now, synchronously. We do this to 97 // We compel the contained HWND to paint now, synchronously. We do this to
98 // populate the device context with valid and current data. 98 // populate the device context with valid and current data.
99 RedrawWindow(current_hwnd_, NULL, NULL, RDW_INVALIDATE | RDW_UPDATENOW); 99 RedrawWindow(current_hwnd_, NULL, NULL, RDW_INVALIDATE | RDW_UPDATENOW);
100 100
101 // Transfer the contents of the layered capture window to the screen-shot 101 // Transfer the contents of the layered capture window to the screen-shot
102 // canvas' DIB. 102 // canvas' DIB.
103 HDC target_dc = canvas->beginPlatformPaint(); 103 HDC target_dc = canvas->AsCanvasSkia()->beginPlatformPaint();
104 HDC source_dc = GetDC(current_hwnd_); 104 HDC source_dc = GetDC(current_hwnd_);
105 RECT window_rect = {0}; 105 RECT window_rect = {0};
106 GetWindowRect(current_hwnd_, &window_rect); 106 GetWindowRect(current_hwnd_, &window_rect);
107 BitBlt(target_dc, target_bounds.x(), target_bounds.y(), 107 BitBlt(target_dc, target_bounds.x(), target_bounds.y(),
108 target_bounds.width(), target_bounds.height(), source_dc, 0, 0, 108 target_bounds.width(), target_bounds.height(), source_dc, 0, 0,
109 SRCCOPY); 109 SRCCOPY);
110 // Windows screws up the alpha channel on all text it draws, and so we need 110 // Windows screws up the alpha channel on all text it draws, and so we need
111 // to call makeOpaque _after_ the blit to correct for this. 111 // to call makeOpaque _after_ the blit to correct for this.
112 canvas->getTopPlatformDevice().makeOpaque(target_bounds.x(), 112 canvas->AsCanvasSkia()->getTopPlatformDevice().makeOpaque(
113 target_bounds.y(), 113 target_bounds.x(), target_bounds.y(), target_bounds.width(),
114 target_bounds.width(), 114 target_bounds.height());
115 target_bounds.height());
116 ReleaseDC(current_hwnd_, source_dc); 115 ReleaseDC(current_hwnd_, source_dc);
117 canvas->endPlatformPaint(); 116 canvas->AsCanvasSkia()->endPlatformPaint();
118 } 117 }
119 118
120 /////////////////////////////////////////////////////////////////////////////// 119 ///////////////////////////////////////////////////////////////////////////////
121 // NativeViewPhotoboothWin, private: 120 // NativeViewPhotoboothWin, private:
122 121
123 void NativeViewPhotoboothWin::CreateCaptureWindow(HWND initial_hwnd) { 122 void NativeViewPhotoboothWin::CreateCaptureWindow(HWND initial_hwnd) {
124 // Snapshotting a HWND is tricky - if the HWND is clipped (e.g. positioned 123 // Snapshotting a HWND is tricky - if the HWND is clipped (e.g. positioned
125 // partially off-screen) then just blitting from the HWND' DC to the capture 124 // partially off-screen) then just blitting from the HWND' DC to the capture
126 // bitmap would be incorrect, since the capture bitmap would show only the 125 // bitmap would be incorrect, since the capture bitmap would show only the
127 // visible area of the HWND. 126 // visible area of the HWND.
(...skipping 29 matching lines...) Expand all
157 capture_window_->set_window_ex_style(WS_EX_LAYERED | WS_EX_TOOLWINDOW); 156 capture_window_->set_window_ex_style(WS_EX_LAYERED | WS_EX_TOOLWINDOW);
158 capture_window_->Init(NULL, capture_bounds); 157 capture_window_->Init(NULL, capture_bounds);
159 // If the capture window isn't visible, blitting from the TabContents' 158 // If the capture window isn't visible, blitting from the TabContents'
160 // HWND's DC to the capture bitmap produces blankness. 159 // HWND's DC to the capture bitmap produces blankness.
161 capture_window_->Show(); 160 capture_window_->Show();
162 SetLayeredWindowAttributes( 161 SetLayeredWindowAttributes(
163 capture_window_->GetNativeView(), RGB(0xFF, 0xFF, 0xFF), 0xFF, LWA_ALPHA); 162 capture_window_->GetNativeView(), RGB(0xFF, 0xFF, 0xFF), 0xFF, LWA_ALPHA);
164 163
165 Replace(initial_hwnd); 164 Replace(initial_hwnd);
166 } 165 }
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