finalcut/src/fmenu.cpp

1643 lines
37 KiB
C++

/***********************************************************************
* fmenu.cpp - Widget FMenu *
* *
* This file is part of the Final Cut widget toolkit *
* *
* Copyright 2015-2020 Markus Gans *
* *
* The Final Cut is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Lesser General Public License *
* as published by the Free Software Foundation; either version 3 of *
* the License, or (at your option) any later version. *
* *
* The Final Cut is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this program. If not, see *
* <http://www.gnu.org/licenses/>. *
***********************************************************************/
#include <memory>
#include <tuple>
#include <vector>
#include "final/fapplication.h"
#include "final/fcolorpair.h"
#include "final/fdialog.h"
#include "final/fevent.h"
#include "final/fmenu.h"
#include "final/fmenubar.h"
#include "final/fmenuitem.h"
#include "final/fstatusbar.h"
#include "final/fwidgetcolors.h"
namespace finalcut
{
//----------------------------------------------------------------------
// class FMenu
//----------------------------------------------------------------------
// constructor and destructor
//----------------------------------------------------------------------
FMenu::FMenu(FWidget* parent)
: FWindow(parent)
{
init(parent);
}
//----------------------------------------------------------------------
FMenu::FMenu (const FString& txt, FWidget* parent)
: FWindow(parent)
, menuitem(txt, parent)
{
init(parent);
}
//----------------------------------------------------------------------
FMenu::~FMenu() // destructor
{
if ( ! FApplication::isQuit() )
switchToPrevWindow(this); // Switch to previous window
}
// public methods of FMenu
//----------------------------------------------------------------------
bool FMenu::setMenuWidget (bool enable)
{
if ( isMenuWidget() == enable )
return true;
return (setFlags().menu_widget = enable);
}
//----------------------------------------------------------------------
void FMenu::setStatusbarMessage (const FString& msg)
{
FWidget::setStatusbarMessage(msg);
menuitem.setStatusbarMessage(msg);
}
//----------------------------------------------------------------------
void FMenu::show()
{
if ( ! isVisible() )
return;
FWindow::show();
}
//----------------------------------------------------------------------
void FMenu::hide()
{
if ( ! isVisible() )
return;
FWindow::hide();
const auto& t_geometry = getTermGeometryWithShadow();
restoreVTerm (t_geometry);
updateTerminal();
flush();
if ( ! isSubMenu() )
{
auto openmenu = static_cast<FMenu*>(getOpenMenu());
if ( openmenu && openmenu != this )
openmenu->hide();
setOpenMenu(nullptr);
}
mouse_down = false;
}
//----------------------------------------------------------------------
void FMenu::onKeyPress (FKeyEvent* ev)
{
// looking for menu hotkey
if ( hotkeyMenu(ev) )
return;
// looking for menu bar hotkey
auto menu_bar = getMenuBar();
if ( menu_bar )
{
auto mbar = static_cast<FMenuBar*>(menu_bar);
if ( mbar->hotkeyMenu(ev) )
return;
}
switch ( ev->key() )
{
case fc::Fkey_up:
selectPrevItem();
break;
case fc::Fkey_down:
selectNextItem();
break;
case fc::Fkey_left:
selectPrevMenu(ev);
break;
case fc::Fkey_right:
selectNextMenu(ev);
break;
case fc::Fkey_return:
case fc::Fkey_enter:
acceptSelection();
break;
case fc::Fkey_escape:
case fc::Fkey_escape_mintty:
closeMenu();
break;
case fc::Fmkey_1:
case fc::Fmkey_2:
case fc::Fmkey_3:
case fc::Fmkey_4:
case fc::Fmkey_5:
case fc::Fmkey_6:
case fc::Fmkey_7:
case fc::Fmkey_8:
case fc::Fmkey_9:
// do nothing:
// handle the dialog switch accelerator in FApplication
return;
default:
break;
}
// always accept key event -> no forwarding to the parent widget
ev->accept();
}
//----------------------------------------------------------------------
void FMenu::onMouseDown (FMouseEvent* ev)
{
shown_sub_menu = nullptr;
if ( ev->getButton() != fc::LeftButton )
{
if ( opened_sub_menu )
{
closeOpenedSubMenu(); // close opened sub menu
if ( getSelectedItem() )
getSelectedItem()->setFocus();
redraw();
if ( getStatusBar() )
getStatusBar()->drawMessage();
updateTerminal();
flush();
}
return;
}
if ( mouse_down )
return;
if ( ! isWindowActive() )
setActiveWindow(this);
mouse_down = true;
if ( getItemList().empty() )
return;
// Mouse pointer over menu list changed focus
if ( mouseDownOverList (ev->getPos()) )
redraw();
// Open the sub menu to be opened
openSubMenu(shown_sub_menu);
}
//----------------------------------------------------------------------
void FMenu::onMouseUp (FMouseEvent* ev)
{
if ( ev->getButton() != fc::LeftButton )
return;
if ( mouse_down )
{
mouse_down = false;
if ( getItemList().empty() )
return;
// Mouse pointer over an entry in the menu list
if ( mouseUpOverList (ev->getPos()) )
return;
// Click on a non-FMenuItem (border or separator line)
mouseUpOverBorder();
}
}
//----------------------------------------------------------------------
void FMenu::onMouseMove (FMouseEvent* ev)
{
if ( ev->getButton() != fc::LeftButton )
return;
if ( ! isWindowActive() )
setActiveWindow(this);
if ( ! mouse_down || getItemList().empty() )
return;
mouseStates ms =
{
false, // focus_changed
false, // hide_sub_menu
isMouseOverMenu (ev->getTermPos()),
isMouseOverSubMenu (ev->getTermPos()),
isMouseOverSuperMenu (ev->getTermPos()),
isMouseOverMenuBar (ev->getTermPos())
};
shown_sub_menu = nullptr;
// Mouse pointer over an entry in the menu list
mouseMoveOverList (ev->getPos(), ms);
if ( ms.mouse_over_submenu )
{
passEventToSubMenu(ev); // Event handover to sub-menu
return;
}
if ( ! ms.mouse_over_menu && ms.mouse_over_supermenu )
{
passEventToSuperMenu(ev); // Event handover to super-menu
return;
}
if ( ms.mouse_over_menubar )
{
passEventToMenuBar(ev); // Event handover to the menu bar
return;
}
if ( ! hasSelectedItem() && ms.mouse_over_menu )
{
mouseMoveOverBorder(ms); // Mouse is over border or separator
}
if ( ms.focus_changed )
redraw();
if ( shown_sub_menu )
{
closeOpenedSubMenu();
openSubMenu (shown_sub_menu);
}
else if ( ms.hide_sub_menu )
{
closeOpenedSubMenu();
updateTerminal();
flush();
}
}
//----------------------------------------------------------------------
void FMenu::cb_menuitemEnabled (FWidget*, const FDataPtr)
{
setEnable();
}
//----------------------------------------------------------------------
void FMenu::cb_menuitemDisabled (FWidget*, const FDataPtr)
{
setDisable();
}
//----------------------------------------------------------------------
void FMenu::cb_menuitemToggled (FWidget* widget, const FDataPtr)
{
const auto& m_item = static_cast<FMenuItem*>(widget);
if ( ! has_checkable_items )
return;
if ( ! m_item->isChecked() )
return;
auto list = getItemList();
if ( list.empty() )
return;
for (auto&& item : list)
{
if ( item != m_item
&& item->isChecked()
&& isRadioMenuItem(item) )
{
item->unsetChecked();
}
}
}
// private methods of FMenu
//----------------------------------------------------------------------
bool FMenu::isDialog (const FWidget* w) const
{
return w->isDialogWidget();
}
//----------------------------------------------------------------------
bool FMenu::isMenuBar (const FWidget* w) const
{
return w->isInstanceOf("FMenuBar");
}
//----------------------------------------------------------------------
bool FMenu::isMenu (const FWidget* w) const
{
return w->isInstanceOf("FMenu");
}
//----------------------------------------------------------------------
bool FMenu::isRadioMenuItem (const FWidget* w) const
{
return w->isInstanceOf("FRadioMenuItem");
}
//----------------------------------------------------------------------
bool FMenu::isSubMenu() const
{
const auto& super = getSuperMenu();
if ( super && isMenu(super) )
return true;
else
return false;
}
//----------------------------------------------------------------------
bool FMenu::isDialogMenu() const
{
const auto& super = getSuperMenu();
return ( super ) ? super->isDialogWidget() : false;
}
//----------------------------------------------------------------------
bool FMenu::isMouseOverMenu (const FPoint& termpos)
{
if ( getTermGeometry().contains(termpos) )
return true;
return false;
}
//----------------------------------------------------------------------
bool FMenu::isMouseOverSubMenu (const FPoint& termpos)
{
if ( opened_sub_menu )
{
const auto& submenu_geometry = opened_sub_menu->getTermGeometry();
if ( submenu_geometry.contains(termpos) )
return true;
}
return false;
}
//----------------------------------------------------------------------
bool FMenu::isMouseOverSuperMenu (const FPoint& termpos)
{
const auto& smenu = superMenuAt (termpos);
if ( smenu )
return true;
return false;
}
//----------------------------------------------------------------------
bool FMenu::isMouseOverMenuBar (const FPoint& termpos)
{
if ( getMenuBar()
&& isMenuBar(getMenuBar())
&& getMenuBar()->getTermGeometry().contains(termpos) )
{
return true;
}
return false;
}
//----------------------------------------------------------------------
void FMenu::init(FWidget* parent)
{
setTopPadding(1);
setLeftPadding(1);
setBottomPadding(1);
setRightPadding(1);
setGeometry (FPoint(1, 1), FSize(10, 2), false); // initialize geometry values
setTransparentShadow();
setMenuWidget();
hide();
const auto& wc = getFWidgetColors();
setForegroundColor (wc.menu_active_fg);
setBackgroundColor (wc.menu_active_bg);
menuitem.setMenu(this);
if ( parent )
{
if ( isMenuBar(parent) )
{
auto mbar = static_cast<FMenuBar*>(parent);
mbar->calculateDimensions();
}
else if ( isMenu(parent) )
{
auto smenu = static_cast<FMenu*>(parent);
smenu->calculateDimensions();
}
setSuperMenu(parent);
}
initCallbacks();
calculateDimensions();
}
//----------------------------------------------------------------------
void FMenu::initCallbacks()
{
menuitem.addCallback
(
"enable",
F_METHOD_CALLBACK (this, &FMenu::cb_menuitemEnabled)
);
menuitem.addCallback
(
"disable",
F_METHOD_CALLBACK (this, &FMenu::cb_menuitemEnabled)
);
}
//----------------------------------------------------------------------
void FMenu::calculateDimensions()
{
max_item_width = 10; // minimum width
// find the maximum item width
for (auto&& item : getItemList())
{
std::size_t item_width = item->getTextWidth() + 2;
const FKey accel_key = item->accel_key;
const bool has_menu = item->hasMenu();
if ( has_menu )
{
item_width += 3;
}
else if ( accel_key )
{
const std::size_t accel_len = getKeyName(accel_key).getLength();
item_width += accel_len + 2;
}
if ( has_checkable_items )
item_width++;
if ( item_width > max_item_width )
max_item_width = item_width;
}
const int adjust_X = adjustX(getX());
// set widget geometry
setGeometry ( FPoint(adjust_X, getY())
, FSize(max_item_width + 2, getCount() + 2) );
// set geometry of all items
const int item_X = 1;
int item_Y = 1;
for (auto&& item : getItemList())
{
item->setGeometry (FPoint(item_X, item_Y), FSize(max_item_width, 1));
if ( item->hasMenu() )
{
const int menu_X = getTermX() + int(max_item_width) + 1;
const int menu_Y = item->getTermY() - 2;
// set sub-menu position
item->getMenu()->setPos (FPoint(menu_X, menu_Y), false);
}
item_Y++;
}
}
//----------------------------------------------------------------------
void FMenu::adjustItems()
{
for (auto&& item : getItemList())
{
if ( item->hasMenu() )
{
auto menu = item->getMenu();
int menu_X = getTermX() + int(max_item_width) + 1;
menu_X = menu->adjustX(menu_X);
const int menu_Y = item->getTermY() - 2;
// set sub-menu position
menu->setPos (FPoint(menu_X, menu_Y));
// call sub-menu adjustItems()
if ( menu->getCount() > 0 )
menu->adjustItems();
}
}
}
//----------------------------------------------------------------------
int FMenu::adjustX (int x_pos)
{
// Is menu outside on the right of the screen?
if ( x_pos + int(max_item_width) >= int(getDesktopWidth() - 1) )
{
x_pos = int(getDesktopWidth() - max_item_width - 1);
// Menu to large for the screen
if ( x_pos < 1 )
x_pos = 1;
}
return x_pos;
}
//----------------------------------------------------------------------
void FMenu::openSubMenu (FMenu* sub_menu, bool select)
{
// open sub menu
if ( ! sub_menu )
return;
if ( sub_menu->isShown() )
return;
if ( select )
{
sub_menu->selectFirstItem();
if ( sub_menu->hasSelectedItem() )
sub_menu->getSelectedItem()->setFocus();
}
sub_menu->show();
opened_sub_menu = sub_menu;
raiseWindow (sub_menu);
sub_menu->redraw();
if ( getStatusBar() )
getStatusBar()->drawMessage();
updateTerminal();
flush();
}
//----------------------------------------------------------------------
void FMenu::closeOpenedSubMenu()
{
// close sub menu
if ( ! opened_sub_menu )
return;
opened_sub_menu->hideSubMenus();
opened_sub_menu->hide();
opened_sub_menu = nullptr;
}
//----------------------------------------------------------------------
void FMenu::hideSubMenus()
{
// hide all sub-menus
if ( opened_sub_menu )
{
opened_sub_menu->hideSubMenus();
opened_sub_menu->hide();
opened_sub_menu = nullptr;
}
unselectItem();
}
//----------------------------------------------------------------------
void FMenu::hideSuperMenus()
{
// hide all menus to the top
auto super = getSuperMenu();
if ( ! super )
return;
if ( isMenuBar(super) )
{
auto mbar = static_cast<FMenuBar*>(super);
if ( mbar->hasSelectedItem() )
mbar->leaveMenuBar();
}
else if ( isMenu(super) )
{
auto m = static_cast<FMenu*>(super);
m->hide();
m->hideSuperMenus();
}
else if ( isDialog(super) )
{
auto dgl = static_cast<FDialog*>(super);
dgl->leaveMenu();
}
}
//----------------------------------------------------------------------
bool FMenu::mouseDownOverList (const FPoint& mouse_pos)
{
bool focus_changed{false};
FPoint pos{mouse_pos};
pos -= FPoint(getRightPadding(), getTopPadding());
for (auto&& item : getItemList())
{
const int x1 = item->getX();
const int x2 = item->getX() + int(item->getWidth());
const int y = item->getY();
const int mouse_x = pos.getX();
const int mouse_y = pos.getY();
if ( mouse_x >= x1
&& mouse_x < x2
&& mouse_y == y )
{
// Mouse pointer over item
mouseDownSubmenu (item);
mouseDownSelection (item, focus_changed);
}
}
return focus_changed;
}
//----------------------------------------------------------------------
void FMenu::mouseDownSubmenu (const FMenuItem* m_item)
{
if ( ! hasSelectedItem() )
return;
auto sel_item = getSelectedItem();
if ( ! sel_item
|| ! sel_item->hasMenu()
|| sel_item->getMenu() != opened_sub_menu )
return;
if ( sel_item != m_item )
hideSubMenus();
else
{
// unselect sub menu items
opened_sub_menu->unselectItem();
raiseWindow (opened_sub_menu);
opened_sub_menu->redraw();
sel_item->setFocus();
if ( getStatusBar() )
getStatusBar()->drawMessage();
updateTerminal();
flush();
}
}
//----------------------------------------------------------------------
void FMenu::mouseDownSelection (FMenuItem* m_item, bool& focus_changed)
{
if ( m_item->isSelected() )
return;
unselectItem();
auto focused_widget = getFocusWidget();
m_item->setSelected();
setSelectedItem(m_item);
m_item->setFocus();
focus_changed = true;
if ( focused_widget )
focused_widget->redraw();
if ( getStatusBar() )
getStatusBar()->drawMessage();
if ( m_item->hasMenu() )
{
const auto& sub_menu = m_item->getMenu();
if ( ! sub_menu->isShown() )
shown_sub_menu = sub_menu;
}
}
//----------------------------------------------------------------------
bool FMenu::mouseUpOverList (const FPoint& mouse_pos)
{
FPoint pos{mouse_pos};
pos -= FPoint(getRightPadding(), getTopPadding());
for (auto&& item : getItemList())
{
const int x1 = item->getX();
const int x2 = item->getX() + int(item->getWidth());
const int y = item->getY();
const int mouse_x = pos.getX();
const int mouse_y = pos.getY();
if ( item->isSelected()
&& mouse_x >= x1
&& mouse_x < x2
&& mouse_y == y )
{
// Mouse pointer over item
if ( item->hasMenu() )
{
auto sub_menu = item->getMenu();
if ( ! sub_menu->isShown() )
openSubMenu (sub_menu, SELECT_ITEM);
else if ( opened_sub_menu )
{
opened_sub_menu->selectFirstItem();
if ( opened_sub_menu->hasSelectedItem() )
opened_sub_menu->getSelectedItem()->setFocus();
opened_sub_menu->redraw();
if ( getStatusBar() )
getStatusBar()->drawMessage();
updateTerminal();
flush();
}
return true;
}
else
{
unselectItem();
hide();
hideSuperMenus();
item->processClicked();
}
}
}
return false;
}
//----------------------------------------------------------------------
void FMenu::mouseMoveOverList (const FPoint& mouse_pos, mouseStates& ms)
{
FPoint pos{mouse_pos};
pos -= FPoint(getRightPadding(), getTopPadding());
for (auto&& item : getItemList())
{
const int x1 = item->getX();
const int x2 = item->getX() + int(item->getWidth());
const int y = item->getY();
const int mouse_x = pos.getX();
const int mouse_y = pos.getY();
if ( mouse_x >= x1 && mouse_x < x2 && mouse_y == y )
mouseMoveSelection (item, ms);
else
mouseMoveDeselection (item, ms);
}
}
//----------------------------------------------------------------------
void FMenu::mouseMoveSelection (FMenuItem* m_item, mouseStates& ms)
{
if ( ! m_item->isEnabled()
|| m_item->isSelected()
|| m_item->isSeparator() )
return;
// Mouse pointer over item
auto focused_widget = getFocusWidget();
m_item->setSelected();
setSelectedItem(m_item);
m_item->setFocus();
ms.focus_changed = true;
if ( focused_widget )
focused_widget->redraw();
if ( getStatusBar() )
getStatusBar()->drawMessage();
// Sub menu handling
if ( m_item->hasMenu() )
{
const auto& sub_menu = m_item->getMenu();
if ( ! sub_menu->isShown() )
shown_sub_menu = sub_menu;
}
else if ( opened_sub_menu )
ms.hide_sub_menu = true;
}
//----------------------------------------------------------------------
void FMenu::mouseMoveDeselection (FMenuItem* m_item, mouseStates& ms)
{
if ( ! ms.mouse_over_menu
|| ! m_item->isEnabled()
|| ! m_item->isSelected()
|| ms.mouse_over_submenu )
return;
// Unselect selected item without mouse focus
m_item->unsetSelected();
m_item->unsetFocus();
if ( getSelectedItem() == m_item )
setSelectedItem(nullptr);
ms.focus_changed = true;
}
//----------------------------------------------------------------------
void FMenu::mouseUpOverBorder()
{
// Mouse button up over border or separator line
unselectItem();
hide();
hideSuperMenus();
}
//----------------------------------------------------------------------
void FMenu::mouseMoveOverBorder (mouseStates& ms)
{
// Mouse is moved over border or separator line
if ( getStatusBar() )
{
const auto& msg = getStatusbarMessage();
const auto& curMsg = getStatusBar()->getMessage();
if ( curMsg != msg )
{
getStatusBar()->setMessage(msg);
getStatusBar()->drawMessage();
}
}
if ( opened_sub_menu )
ms.hide_sub_menu = true;
}
//----------------------------------------------------------------------
void FMenu::passEventToSubMenu (FMouseEvent* const& ev)
{
// Mouse event handover to sub-menu
const auto& t = ev->getTermPos();
const auto& p = opened_sub_menu->termToWidgetPos(t);
const int b = ev->getButton();
try
{
const auto& _ev = \
std::make_shared<FMouseEvent>(fc::MouseMove_Event, p, t, b);
opened_sub_menu->mouse_down = true;
setClickedWidget(opened_sub_menu);
opened_sub_menu->onMouseMove(_ev.get());
}
catch (const std::bad_alloc& ex)
{
std::cerr << bad_alloc_str << ex.what() << std::endl;
}
}
//----------------------------------------------------------------------
void FMenu::passEventToSuperMenu (FMouseEvent* const& ev)
{
// Mouse event handover to super-menu
auto smenu = superMenuAt (ev->getTermPos());
const auto& t = ev->getTermPos();
const auto& p = smenu->termToWidgetPos(t);
const int b = ev->getButton();
try
{
const auto& _ev = \
std::make_shared<FMouseEvent>(fc::MouseMove_Event, p, t, b);
smenu->mouse_down = true;
setClickedWidget(smenu);
smenu->onMouseMove(_ev.get());
}
catch (const std::bad_alloc& ex)
{
std::cerr << bad_alloc_str << ex.what() << std::endl;
}
}
//----------------------------------------------------------------------
void FMenu::passEventToMenuBar (FMouseEvent* const& ev)
{
// Mouse event handover to the menu bar
auto menu_bar = getMenuBar();
const auto& t = ev->getTermPos();
const auto& p = menu_bar->termToWidgetPos(t);
const int b = ev->getButton();
try
{
const auto& _ev = \
std::make_shared<FMouseEvent>(fc::MouseMove_Event, p, t, b);
setClickedWidget(menu_bar);
auto& mbar = *(static_cast<FMenuBar*>(menu_bar));
mbar.mouse_down = true;
mbar.onMouseMove(_ev.get());
}
catch (const std::bad_alloc& ex)
{
std::cerr << bad_alloc_str << ex.what() << std::endl;
}
}
//----------------------------------------------------------------------
bool FMenu::containsMenuStructure (int x, int y)
{
// Check mouse click position for item, menu and all sub menus
const auto& si = getSelectedItem();
if ( getTermGeometry().contains(x, y) )
return true;
else if ( si && si->hasMenu() && opened_sub_menu )
return si->getMenu()->containsMenuStructure(x, y);
else if ( menuitem.getTermGeometry().contains(x, y) )
return true;
else
return false;
}
//----------------------------------------------------------------------
FMenu* FMenu::superMenuAt (int x, int y)
{
// Check mouse click position for super menu
if ( getTermGeometry().contains(x, y) )
return nullptr;
auto super = getSuperMenu();
if ( super && isMenu(super) )
{
if ( super->getTermGeometry().contains(x, y) )
return static_cast<FMenu*>(super);
else
{
const auto& smenu = static_cast<FMenu*>(getSuperMenu());
if ( smenu )
return smenu->superMenuAt(x, y);
}
}
return nullptr;
}
//----------------------------------------------------------------------
bool FMenu::selectNextItem()
{
const auto& list = getItemList();
auto iter = list.begin();
while ( iter != list.end() )
{
if ( (*iter)->isSelected() )
{
FMenuItem* next{};
auto next_element = iter;
do
{
++next_element;
if ( next_element == list.end() )
next_element = list.begin();
next = static_cast<FMenuItem*>(*next_element);
}
while ( ! next->isEnabled()
|| ! next->acceptFocus()
|| ! next->isShown()
|| next->isSeparator() );
if ( next == *iter )
return false;
unselectItem();
next->setSelected();
setSelectedItem(next);
next->setFocus();
if ( getStatusBar() )
getStatusBar()->drawMessage();
redraw();
updateTerminal();
flush();
break;
}
++iter;
}
return true;
}
//----------------------------------------------------------------------
bool FMenu::selectPrevItem()
{
const auto& list = getItemList();
auto iter = list.end();
do
{
--iter;
if ( (*iter)->isSelected() )
{
FMenuItem* prev;
auto prev_element = iter;
do
{
if ( prev_element == list.begin() )
prev_element = list.end();
--prev_element;
prev = static_cast<FMenuItem*>(*prev_element);
}
while ( ! prev->isEnabled()
|| ! prev->acceptFocus()
|| ! prev->isShown()
|| prev->isSeparator() );
if ( prev == *iter )
return false;
unselectItem();
prev->setSelected();
setSelectedItem(prev);
prev->setFocus();
if ( getStatusBar() )
getStatusBar()->drawMessage();
redraw();
updateTerminal();
flush();
break;
}
}
while ( iter != list.begin() );
return true;
}
//----------------------------------------------------------------------
void FMenu::keypressMenuBar (FKeyEvent* ev)
{
auto mbar = getMenuBar();
if ( mbar )
mbar->onKeyPress(ev);
}
//----------------------------------------------------------------------
bool FMenu::hotkeyMenu (FKeyEvent* ev)
{
for (auto&& item : getItemList())
{
if ( item->hasHotkey() )
{
bool found{false};
FKey hotkey = item->getHotkey();
const FKey key = ev->key();
if ( hotkey > 0xff00 && hotkey < 0xff5f ) // full-width character
hotkey -= 0xfee0;
if ( std::isalpha(int(hotkey)) || std::isdigit(int(hotkey)) )
{
if ( FKey(std::tolower(int(hotkey))) == key
|| FKey(std::toupper(int(hotkey))) == key )
found = true;
}
else if ( hotkey == key )
found = true;
if ( found )
{
if ( item->hasMenu() )
{
auto sub_menu = item->getMenu();
unselectItem();
item->setSelected();
setSelectedItem (item);
redraw();
if ( ! sub_menu->isShown() )
openSubMenu (sub_menu, SELECT_ITEM);
sub_menu->redraw();
}
else
{
unselectItem();
hideSubMenus();
hide();
hideSuperMenus();
updateTerminal();
flush();
ev->accept();
item->processClicked();
}
ev->accept();
return true;
}
}
}
return false;
}
//----------------------------------------------------------------------
void FMenu::draw()
{
// Fill the background
const auto& wc = getFWidgetColors();
setColor (wc.menu_active_fg, wc.menu_active_bg);
if ( isMonochron() )
setReverse(true);
clearArea();
drawBorder();
drawItems();
drawShadow(this);
if ( isMonochron() )
setReverse(false);
}
//----------------------------------------------------------------------
void FMenu::drawItems()
{
int y = 0;
for (auto&& item : getItemList())
{
if ( item->isSeparator() )
drawSeparator (y);
else
drawMenuLine (item, y);
y++;
}
}
//----------------------------------------------------------------------
inline void FMenu::drawSeparator (int y)
{
const auto& wc = getFWidgetColors();
print() << FPoint(1, 2 + y)
<< FColorPair(wc.menu_active_fg, wc.menu_active_bg);
if ( isMonochron() )
setReverse(true);
if ( isNewFont() )
{
print (fc::NF_border_line_vertical_right);
FString line ( std::size_t(getWidth()) - 2
, fc::BoxDrawingsHorizontal );
print (line);
print (fc::NF_rev_border_line_vertical_left);
}
else
{
print (fc::BoxDrawingsVerticalAndRight);
FString line ( std::size_t(getWidth()) - 2
, fc::BoxDrawingsHorizontal);
print (line);
print (fc::BoxDrawingsVerticalAndLeft);
}
if ( isMonochron() )
setReverse(false);
}
//----------------------------------------------------------------------
inline void FMenu::drawMenuLine (FMenuItem* m_item, int y)
{
FString txt(m_item->getText());
menuText txtdata{};
std::size_t column_width = getColumnWidth(txt);
const FKey accel_key = m_item->accel_key;
const bool is_enabled = m_item->isEnabled();
const bool is_selected = m_item->isSelected();
// Set screen position and attributes
setLineAttributes (m_item, y);
// Draw check mark prefix for checkable items
drawCheckMarkPrefix (m_item);
// Print leading blank space
print (' ');
hotkeypos = finalcut::getHotkeyPos(txt, txtdata.text);
if ( hotkeypos != NOT_SET )
column_width--;
txtdata.no_underline = m_item->getFlags().no_underline;
setCursorToHotkeyPosition (m_item);
if ( ! is_enabled || is_selected )
txtdata.hotkeypos = NOT_SET;
else
txtdata.hotkeypos = hotkeypos;
drawMenuText (txtdata);
if ( m_item->hasMenu() )
drawSubMenuIndicator (column_width);
else if ( accel_key )
drawAcceleratorKey (column_width, accel_key);
// Draw the trailing spaces of the selected line
if ( is_selected )
drawTrailingSpaces (column_width);
if ( isMonochron() && is_enabled && is_selected )
setReverse(true);
}
//----------------------------------------------------------------------
inline void FMenu::drawCheckMarkPrefix (const FMenuItem* m_item)
{
const bool is_checked = m_item->isChecked();
const bool is_checkable = m_item->checkable;
const bool is_radio_btn = m_item->radio_button;
if ( ! has_checkable_items )
return;
if ( is_checkable )
{
if ( is_checked )
{
if ( is_radio_btn )
{
if ( isNewFont() )
print (fc::NF_Bullet); // NF_Bullet ●
else
print (fc::BlackCircle); // BlackCircle ●
}
else
{
if ( isNewFont() )
print (fc::NF_check_mark); // NF_check_mark ✓
else
print (fc::SquareRoot); // SquareRoot √
}
}
else
{
const auto& wc = getFWidgetColors();
setColor (wc.menu_inactive_fg, getBackgroundColor());
if ( getEncoding() == fc::ASCII )
print ('-');
else
print (fc::SmallBullet); // ·
setColor();
}
}
else
print (' ');
}
//----------------------------------------------------------------------
inline void FMenu::drawMenuText (menuText& data)
{
// Print menu text
for (std::size_t z{0}; z < data.text.getLength(); z++)
{
if ( ! std::iswprint(std::wint_t(data.text[z]))
&& ! isNewFont()
&& ( data.text[z] < fc::NF_rev_left_arrow2
|| data.text[z] > fc::NF_check_mark )
&& ! charEncodable(wchar_t(data.text[z])) )
{
data.text[z] = L' ';
}
if ( z == data.hotkeypos )
{
const auto& wc = getFWidgetColors();
setColor (wc.menu_hotkey_fg, wc.menu_hotkey_bg);
if ( ! data.no_underline )
setUnderline();
print (data.text[z]);
if ( ! data.no_underline )
unsetUnderline();
setColor();
}
else
print (data.text[z]);
}
}
//----------------------------------------------------------------------
inline void FMenu::drawSubMenuIndicator (std::size_t& startpos)
{
const std::size_t c = ( has_checkable_items ) ? 1 : 0;
const std::size_t len = max_item_width - (startpos + c + 3);
if ( len > 0 )
{
// Print filling blank spaces
print (FString(len, L' '));
// Print BlackRightPointingPointer ►
print (fc::BlackRightPointingPointer);
startpos = max_item_width - (c + 2);
}
}
//----------------------------------------------------------------------
inline void FMenu::drawAcceleratorKey (std::size_t& startpos, FKey accel_key)
{
const FString accel_name (getKeyName(accel_key));
const std::size_t c = ( has_checkable_items ) ? 1 : 0;
const std::size_t accel_len = accel_name.getLength();
const std::size_t len = max_item_width - (startpos + accel_len + c + 2);
if ( len > 0 )
{
// Print filling blank spaces + accelerator key name
const FString spaces (len, L' ');
print (spaces + accel_name);
startpos = max_item_width - (c + 2);
}
}
//----------------------------------------------------------------------
inline void FMenu::drawTrailingSpaces (std::size_t startpos)
{
const std::size_t c = ( has_checkable_items ) ? 1 : 0;
// Print trailing blank space
for (std::size_t i = startpos + c; i < max_item_width - 1; i++)
print (' ');
}
//----------------------------------------------------------------------
inline void FMenu::setLineAttributes (const FMenuItem* m_item, int y)
{
const bool is_enabled = m_item->isEnabled();
const bool is_selected = m_item->isSelected();
const auto& wc = getFWidgetColors();
if ( is_enabled )
{
if ( is_selected )
{
setForegroundColor (wc.menu_active_focus_fg);
setBackgroundColor (wc.menu_active_focus_bg);
if ( isMonochron() )
setReverse(false);
}
else
{
setForegroundColor (wc.menu_active_fg);
setBackgroundColor (wc.menu_active_bg);
if ( isMonochron() )
setReverse(true);
}
}
else
{
setForegroundColor (wc.menu_inactive_fg);
setBackgroundColor (wc.menu_inactive_bg);
if ( isMonochron() )
setReverse(true);
}
print() << FPoint(2, 2 + y);
setColor();
}
//----------------------------------------------------------------------
inline void FMenu::setCursorToHotkeyPosition (FMenuItem* m_item)
{
const bool is_checkable = m_item->checkable;
const bool is_selected = m_item->isSelected();
if ( hotkeypos == NOT_SET )
{
// set cursor to the first character
if ( is_selected )
{
if ( is_checkable )
m_item->setCursorPos (FPoint(3, 1));
else
m_item->setCursorPos (FPoint(2, 1));
}
}
else
{
if ( is_selected )
{
// set cursor to the hotkey position
const auto x = getColumnWidth (m_item->getText(), hotkeypos);
if ( is_checkable )
m_item->setCursorPos (FPoint(3 + int(x), 1));
else
m_item->setCursorPos (FPoint(2 + int(x), 1));
}
}
}
//----------------------------------------------------------------------
inline void FMenu::selectPrevMenu (FKeyEvent* ev)
{
if ( isSubMenu() )
{
auto smenu = static_cast<FMenu*>(getSuperMenu());
hideSubMenus();
hide();
if ( smenu->getSelectedItem() )
smenu->getSelectedItem()->setFocus();
smenu->redraw();
if ( getStatusBar() )
getStatusBar()->drawMessage();
updateTerminal();
flush();
}
else
keypressMenuBar(ev); // select previous menu
}
//----------------------------------------------------------------------
inline void FMenu::selectNextMenu (FKeyEvent* ev)
{
if ( hasSelectedItem() && getSelectedItem()->hasMenu() )
{
auto sub_menu = getSelectedItem()->getMenu();
if ( ! sub_menu->isShown() )
openSubMenu (sub_menu, SELECT_ITEM);
else
keypressMenuBar(ev); // select next menu
}
else
keypressMenuBar(ev); // select next menu
}
//----------------------------------------------------------------------
inline void FMenu::acceptSelection()
{
if ( ! hasSelectedItem() )
return;
auto sel_item = getSelectedItem();
if ( sel_item->hasMenu() )
openSubMenu (sel_item->getMenu(), SELECT_ITEM);
else
{
unselectItem();
hide();
hideSuperMenus();
sel_item->processClicked();
}
}
//----------------------------------------------------------------------
inline void FMenu::closeMenu()
{
unselectItem();
hideSubMenus();
hide();
if ( isSubMenu() )
{
auto smenu = static_cast<FMenu*>(getSuperMenu());
if ( smenu->getSelectedItem() )
smenu->getSelectedItem()->setFocus();
smenu->redraw();
}
else
{
const auto& super = getSuperMenu();
hideSuperMenus();
if ( getStatusBar() )
getStatusBar()->clearMessage();
if ( ! (super && isDialog(super)) )
switchToPrevWindow(this);
}
if ( getStatusBar() )
getStatusBar()->drawMessage();
updateTerminal();
flush();
}
//----------------------------------------------------------------------
void FMenu::processActivate()
{
emitCallback("activate");
}
// non-member functions
//----------------------------------------------------------------------
std::tuple<bool, bool> closeOpenMenus ( FMenu* menu
, const FPoint& mouse_position )
{
// Close the open menu
bool is_dialog_menu{false};
if ( ! menu )
return std::make_tuple(false, false);
if ( menu->containsMenuStructure(mouse_position) )
return std::make_tuple(true, false);
if ( menu->isDialogMenu() )
is_dialog_menu = true;
menu->unselectItem();
menu->hide();
menu->hideSubMenus();
menu->hideSuperMenus();
return std::make_tuple (false, is_dialog_menu);
}
} // namespace finalcut