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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 "views/controls/button/checkbox.h"
#include "app/gfx/canvas.h"
#include "views/controls/label.h"
namespace views {
// static
const char Checkbox::kViewClassName[] = "views/Checkbox";
static const int kCheckboxLabelSpacing = 4;
static const int kLabelFocusPaddingHorizontal = 2;
static const int kLabelFocusPaddingVertical = 1;
////////////////////////////////////////////////////////////////////////////////
// Checkbox, public:
Checkbox::Checkbox() : NativeButton(NULL), checked_(false) {
Init(std::wstring());
}
Checkbox::Checkbox(const std::wstring& label)
: NativeButton(NULL, label),
checked_(false) {
Init(label);
}
Checkbox::~Checkbox() {
}
void Checkbox::SetMultiLine(bool multiline) {
label_->SetMultiLine(multiline);
}
void Checkbox::SetChecked(bool checked) {
if (checked_ == checked)
return;
checked_ = checked;
if (native_wrapper_)
native_wrapper_->UpdateChecked();
}
// static
int Checkbox::GetTextIndent() {
return NativeButtonWrapper::GetFixedWidth() + kCheckboxLabelSpacing;
}
////////////////////////////////////////////////////////////////////////////////
// Checkbox, View overrides:
gfx::Size Checkbox::GetPreferredSize() {
if (!native_wrapper_)
return gfx::Size();
gfx::Size prefsize = native_wrapper_->GetView()->GetPreferredSize();
prefsize.set_width(
prefsize.width() + kCheckboxLabelSpacing +
kLabelFocusPaddingHorizontal * 2);
gfx::Size label_prefsize = label_->GetPreferredSize();
prefsize.set_width(prefsize.width() + label_prefsize.width());
prefsize.set_height(
std::max(prefsize.height(),
label_prefsize.height() + kLabelFocusPaddingVertical * 2));
return prefsize;
}
void Checkbox::Layout() {
if (!native_wrapper_)
return;
gfx::Size checkmark_prefsize = native_wrapper_->GetView()->GetPreferredSize();
int label_x = checkmark_prefsize.width() + kCheckboxLabelSpacing +
kLabelFocusPaddingHorizontal;
label_->SetBounds(
label_x, 0, std::max(0, width() - label_x - kLabelFocusPaddingHorizontal),
height());
int first_line_height = label_->GetFont().height();
native_wrapper_->GetView()->SetBounds(
0, ((first_line_height - checkmark_prefsize.height()) / 2),
checkmark_prefsize.width(), checkmark_prefsize.height());
native_wrapper_->GetView()->Layout();
}
void Checkbox::PaintFocusBorder(gfx::Canvas* canvas) {
// Our focus border is rendered by the label, so we don't do anything here.
}
View* Checkbox::GetViewForPoint(const gfx::Point& point) {
return GetViewForPoint(point, false);
}
View* Checkbox::GetViewForPoint(const gfx::Point& point,
bool can_create_floating) {
return GetLocalBounds(true).Contains(point) ? this : NULL;
}
void Checkbox::OnMouseEntered(const MouseEvent& e) {
native_wrapper_->SetPushed(HitTestLabel(e));
}
void Checkbox::OnMouseMoved(const MouseEvent& e) {
native_wrapper_->SetPushed(HitTestLabel(e));
}
void Checkbox::OnMouseExited(const MouseEvent& e) {
native_wrapper_->SetPushed(false);
}
bool Checkbox::OnMousePressed(const MouseEvent& e) {
native_wrapper_->SetPushed(HitTestLabel(e));
return true;
}
void Checkbox::OnMouseReleased(const MouseEvent& e, bool canceled) {
native_wrapper_->SetPushed(false);
if (!canceled && HitTestLabel(e)) {
SetChecked(!checked());
ButtonPressed();
}
}
bool Checkbox::OnMouseDragged(const MouseEvent& e) {
return false;
}
void Checkbox::WillGainFocus() {
label_->set_paint_as_focused(true);
}
void Checkbox::WillLoseFocus() {
label_->set_paint_as_focused(false);
}
std::string Checkbox::GetClassName() const {
return kViewClassName;
}
////////////////////////////////////////////////////////////////////////////////
// Checkbox, NativeButton overrides:
void Checkbox::CreateWrapper() {
native_wrapper_ = NativeButtonWrapper::CreateCheckboxWrapper(this);
native_wrapper_->UpdateLabel();
native_wrapper_->UpdateChecked();
}
void Checkbox::InitBorder() {
// No border, so we do nothing.
}
////////////////////////////////////////////////////////////////////////////////
// Checkbox, protected:
bool Checkbox::HitTestLabel(const MouseEvent& e) {
gfx::Point tmp(e.location());
ConvertPointToView(this, label_, &tmp);
return label_->HitTest(tmp);
}
////////////////////////////////////////////////////////////////////////////////
// Checkbox, private:
void Checkbox::Init(const std::wstring& label_text) {
set_minimum_size(gfx::Size(0, 0));
label_ = new Label(label_text);
label_->set_has_focus_border(true);
label_->SetHorizontalAlignment(Label::ALIGN_LEFT);
AddChildView(label_);
}
} // namespace views
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