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// 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.
#include <gtk/gtk.h>
#include "views/controls/slider/native_slider_gtk.h"
#include "app/gfx/gtk_util.h"
#include "views/controls/slider/slider.h"
namespace views {
////////////////////////////////////////////////////////////////////////////////
// NativeSliderGtk, public:
NativeSliderGtk::NativeSliderGtk(Slider* slider)
: slider_(slider) {
}
NativeSliderGtk::~NativeSliderGtk() {
}
////////////////////////////////////////////////////////////////////////////////
// NativeSliderGtk, NativeSliderWrapper implementation:
void NativeSliderGtk::UpdateEnabled() {
if (!native_view())
return;
SetEnabled(slider_->IsEnabled());
}
double NativeSliderGtk::GetValue() {
if (!native_view())
return 0;
return gtk_range_get_value(GTK_RANGE(native_view()));
}
void NativeSliderGtk::SetValue(double value) {
if (!native_view())
return;
gtk_range_set_value(GTK_RANGE(native_view()), value);
}
void NativeSliderGtk::SetFocus() {
Focus();
}
gfx::Size NativeSliderGtk::GetPreferredSize() {
if (!native_view())
return gfx::Size();
if (preferred_size_.IsEmpty()) {
GtkRequisition size_request = { 0, 0 };
gtk_widget_size_request(native_view(), &size_request);
preferred_size_.SetSize(size_request.width, size_request.height);
}
return preferred_size_;
}
View* NativeSliderGtk::GetView() {
return this;
}
gfx::NativeView NativeSliderGtk::GetTestingHandle() const {
return native_view();
}
// static
gboolean NativeSliderGtk::OnValueChangedHandler(GtkWidget* entry,
NativeSliderGtk* slider) {
return slider->OnValueChanged();
}
gboolean NativeSliderGtk::OnValueChanged() {
slider_->NotifyValueChanged();
return false;
}
////////////////////////////////////////////////////////////////////////////////
// NativeSliderGtk, NativeControlGtk overrides:
void NativeSliderGtk::CreateNativeControl() {
GtkWidget* widget;
if (slider_->style() & Slider::STYLE_VERTICAL)
widget = gtk_vscale_new_with_range(slider_->min(),
slider_->max(),
slider_->step());
else
widget = gtk_hscale_new_with_range(slider_->min(),
slider_->max(),
slider_->step());
NativeControlCreated(widget);
bool drawvalue = slider_->style() & Slider::STYLE_DRAW_VALUE;
gtk_scale_set_draw_value(GTK_SCALE(native_view()), drawvalue);
int digits = 0;
if (slider_->style() & Slider::STYLE_ONE_DIGIT)
digits = 1;
else if (slider_->style() & Slider::STYLE_TWO_DIGITS)
digits = 2;
gtk_scale_set_digits(GTK_SCALE(native_view()), digits);
if (slider_->style() & Slider::STYLE_UPDATE_ON_RELEASE)
gtk_range_set_update_policy(GTK_RANGE(native_view()),
GTK_UPDATE_DISCONTINUOUS);
}
void NativeSliderGtk::NativeControlCreated(GtkWidget* widget) {
NativeControlGtk::NativeControlCreated(widget);
g_signal_connect(widget, "value_changed",
G_CALLBACK(OnValueChangedHandler), this);
}
////////////////////////////////////////////////////////////////////////////////
// NativeSliderWrapper, public:
// static
NativeSliderWrapper* NativeSliderWrapper::CreateWrapper(Slider* field) {
return new NativeSliderGtk(field);
}
} // namespace views
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