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cefclient: Support dynamic configuration of the device scale factor with off-screen rendering (issue #1674)

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This commit is contained in:
Marshall Greenblatt
2015-08-10 16:49:45 -04:00
parent 41669141eb
commit a08686e6a6
26 changed files with 580 additions and 244 deletions
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23
tests/cefclient/browser/browser_window_osr_win.cc
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@@ -5,6 +5,7 @@
#include "cefclient/browser/browser_window_osr_win.h"
#include "cefclient/browser/main_message_loop.h"
#include "cefclient/browser/util_win.h"
namespace client {
@@ -13,7 +14,8 @@ BrowserWindowOsrWin::BrowserWindowOsrWin(BrowserWindow::Delegate* delegate,
const OsrRenderer::Settings& settings)
: BrowserWindow(delegate),
transparent_(settings.transparent),
osr_hwnd_(NULL) {
osr_hwnd_(NULL),
device_scale_factor_(client::GetDeviceScaleFactor()) {
osr_window_ = new OsrWindowWin(this, settings);
client_handler_ = new ClientHandlerOsr(this, osr_window_.get(), startup_url);
}
@@ -71,6 +73,25 @@ void BrowserWindowOsrWin::SetFocus(bool focus) {
osr_window_->SetFocus();
}
void BrowserWindowOsrWin::SetDeviceScaleFactor(float device_scale_factor) {
REQUIRE_MAIN_THREAD();
if (device_scale_factor == device_scale_factor_)
return;
// Apply some sanity checks.
if (device_scale_factor < 1.0f || device_scale_factor > 4.0f)
return;
device_scale_factor_ = device_scale_factor;
if (osr_window_)
osr_window_->SetDeviceScaleFactor(device_scale_factor);
}
float BrowserWindowOsrWin::GetDeviceScaleFactor() const {
REQUIRE_MAIN_THREAD();
return device_scale_factor_;
}
ClientWindowHandle BrowserWindowOsrWin::GetWindowHandle() const {
REQUIRE_MAIN_THREAD();
return osr_hwnd_;