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Windows: Add CefEnableHighDPISupport function and fix high-dpi scaling issues (issue #1674)

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Marshall Greenblatt
2015-08-07 16:04:03 -04:00
parent 2792d1bb12
commit 9e0d84d94a
9 changed files with 119 additions and 4 deletions
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9
libcef/browser/browser_host_impl_win.cc
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@@ -37,6 +37,7 @@
#include "ui/aura/window_tree_host.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/win/shell.h"
#include "ui/gfx/screen.h"
#include "ui/gfx/win/hwnd_util.h"
#include "ui/views/widget/desktop_aura/desktop_window_tree_host_win.h"
#include "ui/views/widget/widget.h"
@@ -809,11 +810,17 @@ bool CefBrowserHostImpl::PlatformCreateWindow() {
CefColorGetB(settings.background_color));
}
// Adjust for potential display scaling.
gfx::Point point = gfx::Point(cr.right, cr.bottom);
float scale = gfx::Screen::GetNativeScreen()->
GetDisplayNearestPoint(point).device_scale_factor();
point = gfx::ToFlooredPoint(gfx::ScalePoint(point, 1.0f / scale));
CefWindowDelegateView* delegate_view =
new CefWindowDelegateView(background_color);
delegate_view->Init(window_info_.window,
web_contents(),
gfx::Rect(0, 0, cr.right, cr.bottom));
gfx::Rect(0, 0, point.x(), point.y()));
window_widget_ = delegate_view->GetWidget();
window_widget_->Show();