aseprite/src/app/ui/app_menuitem.cpp

129 lines
2.8 KiB
C++

// Aseprite
// Copyright (C) 2001-2015 David Capello
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2 as
// published by the Free Software Foundation.
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "app/ui/app_menuitem.h"
#include "app/commands/command.h"
#include "app/commands/params.h"
#include "app/modules/gui.h"
#include "app/ui/keyboard_shortcuts.h"
#include "app/ui_context.h"
#include "ui/accelerator.h"
#include "ui/menu.h"
#include "ui/message.h"
#include "ui/size_hint_event.h"
#include "ui/widget.h"
#include <cstdarg>
#include <cstdio>
#include <cstring>
namespace app {
using namespace ui;
// static
Params AppMenuItem::s_contextParams;
AppMenuItem::AppMenuItem(const char* text, Command* command, const Params& params)
: MenuItem(text)
, m_key(NULL)
, m_command(command)
, m_params(params)
{
}
// static
void AppMenuItem::setContextParams(const Params& params)
{
s_contextParams = params;
}
bool AppMenuItem::onProcessMessage(Message* msg)
{
switch (msg->type()) {
case kCloseMessage:
// disable the menu (the keyboard shortcuts are processed by "manager_msg_proc")
setEnabled(false);
if (!s_contextParams.empty())
s_contextParams.clear();
break;
default:
if (msg->type() == kOpenMessage ||
msg->type() == kOpenMenuItemMessage) {
// Update the context flags after opening the menuitem's
// submenu to update the "enabled" flag of each command
// correctly.
Context* context = UIContext::instance();
context->updateFlags();
if (m_command) {
Params params = m_params;
if (!s_contextParams.empty())
params |= s_contextParams;
m_command->loadParams(params);
setEnabled(m_command->isEnabled(context));
setSelected(m_command->isChecked(context));
}
}
break;
}
return MenuItem::onProcessMessage(msg);
}
void AppMenuItem::onSizeHint(SizeHintEvent& ev)
{
gfx::Size size(0, 0);
if (hasText()) {
size.w =
+ getTextWidth()
+ (inBar() ? this->childSpacing()/4: this->childSpacing())
+ border().width();
size.h =
+ getTextHeight()
+ border().height();
if (m_key && !m_key->accels().empty()) {
size.w += Graphics::measureUIStringLength(
m_key->accels().front().toString().c_str(), getFont());
}
}
ev.setSizeHint(size);
}
void AppMenuItem::onClick()
{
MenuItem::onClick();
if (m_command) {
Params params = m_params;
if (!s_contextParams.empty())
params |= s_contextParams;
m_command->loadParams(params);
UIContext* context = UIContext::instance();
if (m_command->isEnabled(context))
context->executeCommand(m_command, params);
}
}
} // namespace app