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views: Show menubar's accelerator when "Alt" is pressed.

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This commit is contained in:
Cheng Zhao 2014-08-18 14:12:12 +08:00
parent 965f2b1b6b
commit e9536508a5
5 changed files with 30 additions and 1 deletions
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11
atom/browser/ui/views/submenu_button.cc
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@ -27,6 +27,7 @@ SubmenuButton::SubmenuButton(views::ButtonListener* listener,
views::MenuButtonListener* menu_button_listener)
: views::MenuButton(listener, FilterAccecelator(title),
menu_button_listener, false),
show_underline_(false),
underline_start_(-1),
underline_end_(-1),
text_width_(0),
@ -40,6 +41,14 @@ SubmenuButton::SubmenuButton(views::ButtonListener* listener,
SubmenuButton::~SubmenuButton() {
}
void SubmenuButton::SetAcceleratorVisibility(bool visible) {
if (visible == show_underline_)
return;
show_underline_ = visible;
SchedulePaint();
}
void SubmenuButton::SetUnderlineColor(SkColor color) {
underline_color_ = color;
}
@ -47,7 +56,7 @@ void SubmenuButton::SetUnderlineColor(SkColor color) {
void SubmenuButton::OnPaint(gfx::Canvas* canvas) {
views::MenuButton::OnPaint(canvas);
if (underline_start_ != underline_end_) {
if (show_underline_ && (underline_start_ != underline_end_)) {
int padding = (width() - text_width_) / 2;
int underline_height = (height() + text_height_) / 2 - 2;
canvas->DrawLine(gfx::Point(underline_start_ + padding, underline_height),