774 lines
18 KiB
C++
774 lines
18 KiB
C++
/***********************************************************************
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* fmenuitem.cpp - Widget FMenuItem *
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* *
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* This file is part of the Final Cut widget toolkit *
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* *
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* Copyright 2015-2018 Markus Gans *
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* *
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* The Final Cut is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Lesser General Public License *
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* as published by the Free Software Foundation; either version 3 of *
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* the License, or (at your option) any later version. *
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* *
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* The Final Cut is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Lesser General Public License for more details. *
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* *
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* You should have received a copy of the GNU Lesser General Public *
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* License along with this program. If not, see *
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* <http://www.gnu.org/licenses/>. *
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***********************************************************************/
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#include "final/fapplication.h"
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#include "final/fdialog.h"
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#include "final/fmenu.h"
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#include "final/fmenubar.h"
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#include "final/fmenulist.h"
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#include "final/fmenuitem.h"
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#include "final/fstatusbar.h"
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//----------------------------------------------------------------------
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// class FMenuItem
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//----------------------------------------------------------------------
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// constructor and destructor
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//----------------------------------------------------------------------
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FMenuItem::FMenuItem (FWidget* parent)
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: FWidget(parent)
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, text()
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, selected(false)
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, separator(false)
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, checkable(false)
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, checked(false)
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, radio_button(false)
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, dialog_index(false)
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, text_length(0)
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, hotkey(0)
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, accel_key(0)
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, menu(0)
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, super_menu(0)
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, associated_window(0)
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{
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init (parent);
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}
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//----------------------------------------------------------------------
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FMenuItem::FMenuItem (const FString& txt, FWidget* parent)
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: FWidget(parent)
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, text(txt)
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, selected(false)
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, separator(false)
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, checkable(false)
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, checked(false)
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, radio_button(false)
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, dialog_index(false)
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, text_length(0)
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, hotkey(0)
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, accel_key(0)
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, menu(0)
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, super_menu(0)
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, associated_window(0)
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{
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init (parent);
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}
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//----------------------------------------------------------------------
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FMenuItem::FMenuItem (int k, const FString& txt, FWidget* parent)
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: FWidget(parent)
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, text(txt)
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, selected(false)
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, separator(false)
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, checkable(false)
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, checked(false)
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, radio_button(false)
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, dialog_index(false)
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, text_length(0)
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, hotkey(0)
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, accel_key(k)
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, menu(0)
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, super_menu(0)
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, associated_window(0)
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{
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init (parent);
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}
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//----------------------------------------------------------------------
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FMenuItem::~FMenuItem() // destructor
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{
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delAccelerator();
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// remove dialog list item callback from the dialog
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if ( associated_window )
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associated_window->delCallback(this);
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}
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// public methods of FMenuItem
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//----------------------------------------------------------------------
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bool FMenuItem::setEnable (bool on)
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{
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FWidget::setEnable(on);
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FWidget* super = getSuperMenu();
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if ( on )
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{
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if ( super && isMenuBar(super) )
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{
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// Meta + hotkey
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super->addAccelerator (fc::Fmkey_meta + std::tolower(hotkey), this);
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}
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}
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else
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{
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if ( super && isMenuBar(super) )
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super->delAccelerator (this);
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}
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return on;
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}
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//----------------------------------------------------------------------
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bool FMenuItem::setFocus (bool on)
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{
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FWidget::setFocus(on);
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if ( on )
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{
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if ( isEnabled() )
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{
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if ( ! selected )
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{
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FMenuList* menu_list = dynamic_cast<FMenuList*>(getSuperMenu());
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setSelected();
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if ( menu_list )
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{
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menu_list->unselectItem();
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menu_list->setSelectedItem(this);
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}
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if ( getStatusBar() )
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getStatusBar()->drawMessage();
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FWidget* parent = getSuperMenu();
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if ( isMenuBar(parent) )
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{
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FMenuBar* menubar_ptr = static_cast<FMenuBar*>(parent);
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if ( menubar_ptr )
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menubar_ptr->redraw();
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}
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else if ( isMenu(parent) )
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{
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FMenu* menu_ptr = static_cast<FMenu*>(parent);
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if ( menu_ptr )
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menu_ptr->redraw();
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}
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}
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if ( getStatusBar() )
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{
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const FString& msg = getStatusbarMessage();
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const FString& curMsg = getStatusBar()->getMessage();
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if ( curMsg != msg )
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getStatusBar()->setMessage(msg);
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}
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}
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}
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else
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{
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if ( isEnabled() && getStatusBar() )
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getStatusBar()->clearMessage();
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}
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return on;
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}
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//----------------------------------------------------------------------
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void FMenuItem::setSelected()
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{
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if ( isEnabled() )
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{
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selected = true;
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processActivate();
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}
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}
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//----------------------------------------------------------------------
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void FMenuItem::unsetSelected()
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{
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selected = false;
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unsetCursorPos();
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processDeactivate();
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}
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//----------------------------------------------------------------------
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void FMenuItem::setText (const FString& txt)
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{
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text = txt;
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text_length = text.getLength();
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hotkey = hotKey();
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if ( hotkey )
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text_length--;
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setWidth(int(text_length));
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}
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//----------------------------------------------------------------------
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void FMenuItem::addAccelerator (int key, FWidget* obj)
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{
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FWidget* root = getRootWidget();
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accelerator accel = { key, obj };
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if ( root && root->accelerator_list )
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{
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accel_key = key;
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root->accelerator_list->push_back(accel);
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}
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if ( isMenu(super_menu) )
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{
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FMenu* menu_ptr = static_cast<FMenu*>(super_menu);
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if ( menu_ptr )
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menu_ptr->calculateDimensions();
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}
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}
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//----------------------------------------------------------------------
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void FMenuItem::delAccelerator (FWidget* obj)
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{
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FWidget* root = getRootWidget();
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if ( root
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&& root->accelerator_list
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&& ! root->accelerator_list->empty() )
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{
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FWidget::Accelerators::iterator iter;
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iter = root->accelerator_list->begin();
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while ( iter != root->accelerator_list->end() )
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{
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if ( iter->object == obj )
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{
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accel_key = 0;
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iter = root->accelerator_list->erase(iter);
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}
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else
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++iter;
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}
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}
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if ( isMenu(super_menu) )
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{
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FMenu* menu_ptr = static_cast<FMenu*>(super_menu);
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if ( menu_ptr )
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menu_ptr->calculateDimensions();
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}
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}
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//----------------------------------------------------------------------
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void FMenuItem::openMenu()
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{
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FMenu* dd_menu; // Drop-down menu
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FMenu* open_menu;
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if ( ! hasMenu() )
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return;
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dd_menu = getMenu(); // Drop-down menu
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if ( dd_menu->isVisible() )
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return;
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open_menu = static_cast<FMenu*>(getOpenMenu());
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if ( open_menu && open_menu != dd_menu )
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{
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open_menu->hide();
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open_menu->hideSubMenus();
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}
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if ( dialog_index )
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createDialogList (dd_menu);
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setOpenMenu(dd_menu);
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dd_menu->setVisible();
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dd_menu->show();
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dd_menu->raiseWindow();
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dd_menu->redraw();
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updateTerminal();
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flush_out();
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}
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//----------------------------------------------------------------------
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void FMenuItem::onKeyPress (FKeyEvent* ev)
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{
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if ( ! super_menu )
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return;
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if ( isMenu(super_menu) )
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{
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FMenu* smenu = static_cast<FMenu*>(super_menu);
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smenu->onKeyPress(ev);
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}
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if ( isMenuBar(super_menu) )
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{
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FMenuBar* mbar = static_cast<FMenuBar*>(super_menu);
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if ( mbar )
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{
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if ( mbar->hotkeyMenu(ev) )
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return;
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mbar->onKeyPress(ev);
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}
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}
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}
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//----------------------------------------------------------------------
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void FMenuItem::onMouseDoubleClick (FMouseEvent* ev)
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{
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if ( ! super_menu )
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return;
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if ( isMenu(super_menu) )
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{
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FMenu* smenu = static_cast<FMenu*>(super_menu);
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passMouseEvent (smenu, ev, fc::MouseDoubleClick_Event);
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}
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if ( isMenuBar(super_menu) )
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{
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FMenuBar* mbar = static_cast<FMenuBar*>(super_menu);
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passMouseEvent (mbar, ev, fc::MouseDoubleClick_Event);
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}
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if ( isWindowsMenu(super_menu) )
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{
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FDialog* dgl = static_cast<FDialog*>(super_menu);
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passMouseEvent (dgl, ev, fc::MouseDoubleClick_Event);
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}
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}
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//----------------------------------------------------------------------
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void FMenuItem::onMouseDown (FMouseEvent* ev)
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{
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if ( ! super_menu )
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return;
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if ( isMenu(super_menu) )
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{
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FMenu* smenu = static_cast<FMenu*>(super_menu);
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passMouseEvent (smenu, ev, fc::MouseDown_Event);
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}
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if ( isMenuBar(super_menu) )
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{
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FMenuBar* mbar = static_cast<FMenuBar*>(super_menu);
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passMouseEvent (mbar, ev, fc::MouseDown_Event);
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}
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if ( isWindowsMenu(super_menu) )
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{
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FDialog* dgl = static_cast<FDialog*>(super_menu);
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passMouseEvent (dgl, ev, fc::MouseDown_Event);
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}
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}
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//----------------------------------------------------------------------
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void FMenuItem::onMouseUp (FMouseEvent* ev)
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{
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if ( ! super_menu )
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return;
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if ( isMenu(super_menu) )
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{
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FMenu* smenu = static_cast<FMenu*>(super_menu);
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passMouseEvent (smenu, ev, fc::MouseUp_Event);
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}
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if ( isMenuBar(super_menu) )
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{
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FMenuBar* mbar = static_cast<FMenuBar*>(super_menu);
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passMouseEvent (mbar, ev, fc::MouseUp_Event);
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}
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if ( isWindowsMenu(super_menu) )
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{
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FDialog* dgl = static_cast<FDialog*>(super_menu);
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passMouseEvent (dgl, ev, fc::MouseUp_Event);
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}
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}
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//----------------------------------------------------------------------
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void FMenuItem::onMouseMove (FMouseEvent* ev)
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{
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if ( ! super_menu )
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return;
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if ( isMenu(super_menu) )
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{
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FMenu* smenu = static_cast<FMenu*>(super_menu);
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passMouseEvent (smenu, ev, fc::MouseMove_Event);
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}
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if ( isMenuBar(super_menu) )
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{
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FMenuBar* mbar = static_cast<FMenuBar*>(super_menu);
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passMouseEvent (mbar, ev, fc::MouseMove_Event);
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}
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if ( isWindowsMenu(super_menu) )
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{
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FDialog* dgl = static_cast<FDialog*>(super_menu);
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passMouseEvent (dgl, ev, fc::MouseMove_Event);
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}
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}
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//----------------------------------------------------------------------
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void FMenuItem::onAccel (FAccelEvent* ev)
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{
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if ( ! isEnabled() || isSelected() )
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return;
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if ( ! super_menu || ! isMenuBar(super_menu) )
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{
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processClicked();
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return;
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}
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FMenuBar* mbar = static_cast<FMenuBar*>(super_menu);
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if ( menu )
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{
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FWidget* focused_widget;
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if ( mbar->getSelectedItem() )
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mbar->getSelectedItem()->unsetSelected();
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setSelected();
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mbar->selected_item = this;
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openMenu();
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focused_widget = static_cast<FWidget*>(ev->focusedWidget());
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if ( focused_widget && focused_widget->isWidget() )
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{
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FFocusEvent out (fc::FocusOut_Event);
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FApplication::queueEvent(focused_widget, &out);
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}
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menu->unselectItem();
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menu->selectFirstItem();
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if ( menu->getSelectedItem() )
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menu->getSelectedItem()->setFocus();
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if ( focused_widget && focused_widget->isWidget() )
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focused_widget->redraw();
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menu->redraw();
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if ( getStatusBar() )
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getStatusBar()->drawMessage();
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mbar->redraw();
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mbar->drop_down = true;
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}
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else
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{
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unsetSelected();
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mbar->selected_item = 0;
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mbar->redraw();
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processClicked();
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mbar->drop_down = false;
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}
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ev->accept();
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}
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//----------------------------------------------------------------------
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void FMenuItem::onFocusIn (FFocusEvent*)
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{
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if ( getStatusBar() )
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getStatusBar()->drawMessage();
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}
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//----------------------------------------------------------------------
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void FMenuItem::onFocusOut (FFocusEvent*)
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{
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unsetSelected();
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if ( super_menu && isMenuBar(super_menu) )
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{
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FMenuBar* mbar = static_cast<FMenuBar*>(super_menu);
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mbar->redraw();
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}
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if ( getStatusBar() )
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{
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getStatusBar()->clearMessage();
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getStatusBar()->drawMessage();
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}
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}
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// protected methods of FMenuItem
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//----------------------------------------------------------------------
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bool FMenuItem::isWindowsMenu (FWidget* w) const
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{
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return ( w ) ? w->isDialogWidget() : false;
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}
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//----------------------------------------------------------------------
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bool FMenuItem::isMenuBar (FWidget* w) const
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{
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return ( w ) ? w->isInstanceOf("FMenuBar") : false;
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}
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//----------------------------------------------------------------------
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bool FMenuItem::isMenu (FWidget* w) const
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{
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if ( ! w )
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return false;
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bool m1 = w->isInstanceOf("FMenu");
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bool m2 = w->isInstanceOf("FDialogListMenu");
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return bool( m1 || m2 );
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}
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// private methods of FMenuItem
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//----------------------------------------------------------------------
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void FMenuItem::init (FWidget* parent)
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{
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text_length = text.getLength();
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hotkey = hotKey();
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if ( hotkey )
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text_length--;
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setGeometry (1, 1, int(text_length + 2), 1, false);
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if ( ! parent )
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return;
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FMenuList* menu_list;
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setSuperMenu (parent);
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if ( accel_key )
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addAccelerator (accel_key);
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menu_list = dynamic_cast<FMenuList*>(parent);
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if ( menu_list )
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menu_list->insert(this);
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if ( isMenuBar(parent) ) // Parent is menubar
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{
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FMenuBar* menubar_ptr = static_cast<FMenuBar*>(parent);
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menubar_ptr->calculateDimensions();
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if ( hotkey ) // Meta + hotkey
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menubar_ptr->addAccelerator ( fc::Fmkey_meta + std::tolower(hotkey)
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, this );
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addCallback // for this element
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(
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"deactivate",
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F_METHOD_CALLBACK (parent, &FMenuBar::cb_item_deactivated)
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);
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}
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else if ( isMenu(parent) ) // Parent is menu
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{
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FMenu* menu_ptr = static_cast<FMenu*>(parent);
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menu_ptr->calculateDimensions();
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}
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}
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//----------------------------------------------------------------------
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uChar FMenuItem::hotKey()
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{
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uInt length;
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if ( text.isEmpty() )
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return 0;
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length = text.getLength();
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for (uInt i = 0; i < length; i++)
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{
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try
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{
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if ( i + 1 < length && text[i] == '&' )
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return uChar(text[++i]);
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}
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catch (const std::out_of_range&)
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{
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return 0;
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}
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}
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return 0;
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}
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//----------------------------------------------------------------------
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void FMenuItem::processActivate()
|
|
{
|
|
emitCallback("activate");
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
void FMenuItem::processDeactivate()
|
|
{
|
|
emitCallback("deactivate");
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
void FMenuItem::createDialogList (FMenu* winmenu)
|
|
{
|
|
winmenu->clear();
|
|
|
|
if ( dialog_list && ! dialog_list->empty() )
|
|
{
|
|
widgetList::const_iterator iter, first;
|
|
iter = first = dialog_list->begin();
|
|
|
|
while ( iter != dialog_list->end() && *iter )
|
|
{
|
|
FDialog* win = static_cast<FDialog*>(*iter);
|
|
|
|
if ( win )
|
|
{
|
|
FMenuItem* win_item;
|
|
int n = int(std::distance(first, iter));
|
|
// get the dialog title
|
|
const FString& name = win->getText();
|
|
|
|
try
|
|
{
|
|
// create a new dialog list item
|
|
win_item = new FMenuItem (name, winmenu);
|
|
}
|
|
catch (const std::bad_alloc& ex)
|
|
{
|
|
std::cerr << "not enough memory to alloc "
|
|
<< ex.what() << std::endl;
|
|
return;
|
|
}
|
|
|
|
if ( n < 9 )
|
|
win_item->addAccelerator (fc::Fmkey_1 + n); // Meta + 1..9
|
|
|
|
win_item->addCallback
|
|
(
|
|
"clicked",
|
|
F_METHOD_CALLBACK (win_item, &FMenuItem::cb_switchToDialog),
|
|
static_cast<FWidget::data_ptr>(win)
|
|
);
|
|
|
|
win->addCallback
|
|
(
|
|
"destroy",
|
|
F_METHOD_CALLBACK (win_item, &FMenuItem::cb_destroyDialog)
|
|
);
|
|
|
|
win_item->associated_window = win;
|
|
}
|
|
|
|
++iter;
|
|
}
|
|
}
|
|
|
|
winmenu->calculateDimensions();
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
template<class T>
|
|
void FMenuItem::passMouseEvent ( T widget, FMouseEvent* ev
|
|
, fc::events ev_type )
|
|
{
|
|
if ( ! widget )
|
|
return;
|
|
|
|
FMouseEvent* _ev;
|
|
const FPoint& t = ev->getTermPos();
|
|
const FPoint& p2 = widget->termToWidgetPos(t);
|
|
int b = ev->getButton();
|
|
|
|
try
|
|
{
|
|
_ev = new FMouseEvent (ev_type, p2, t, b);
|
|
}
|
|
catch (const std::bad_alloc& ex)
|
|
{
|
|
std::cerr << "not enough memory to alloc "
|
|
<< ex.what() << std::endl;
|
|
return;
|
|
}
|
|
|
|
switch ( int(ev_type) )
|
|
{
|
|
case fc::MouseDoubleClick_Event:
|
|
widget->onMouseDoubleClick(_ev);
|
|
break;
|
|
|
|
case fc::MouseDown_Event:
|
|
widget->onMouseDown(_ev);
|
|
break;
|
|
|
|
case fc::MouseUp_Event:
|
|
widget->onMouseUp(_ev);
|
|
break;
|
|
|
|
case fc::MouseMove_Event:
|
|
widget->onMouseMove(_ev);
|
|
break;
|
|
}
|
|
|
|
delete _ev;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
void FMenuItem::cb_switchToDialog (FWidget*, data_ptr data)
|
|
{
|
|
FDialog* win = static_cast<FDialog*>(data);
|
|
|
|
if ( win )
|
|
{
|
|
FWidget* focus_widget = getFocusWidget();
|
|
FAccelEvent a_ev (fc::Accelerator_Event, focus_widget);
|
|
FApplication::sendEvent (win, &a_ev);
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
void FMenuItem::cb_destroyDialog (FWidget* widget, data_ptr)
|
|
{
|
|
FDialog* win = static_cast<FDialog*>(widget);
|
|
FApplication* fapp = static_cast<FApplication*>(getRootWidget());
|
|
|
|
if ( win && fapp )
|
|
{
|
|
delAccelerator(win);
|
|
delCallback(win);
|
|
associated_window = 0;
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
void FMenuItem::processClicked()
|
|
{
|
|
emitCallback("clicked");
|
|
}
|