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finalcut/examples/windows.cpp

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/***********************************************************************
* windows.cpp - Shows window handling *
* *
* This file is part of the Final Cut widget toolkit *
* *
* Copyright 2016-2018 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 <vector>
#include <final/final.h>
//----------------------------------------------------------------------
// class SmallWindow
//----------------------------------------------------------------------
#pragma pack(push)
#pragma pack(1)
class SmallWindow : public finalcut::FDialog
{
public:
// Constructor
explicit SmallWindow (finalcut::FWidget* = nullptr);
// Disable copy constructor
SmallWindow (const SmallWindow&) = delete;
// Destructor
~SmallWindow();
// Disable assignment operator (=)
SmallWindow& operator = (const SmallWindow&) = delete;
private:
// Method
virtual void adjustSize() override;
// Event handlers
virtual void onShow (finalcut::FShowEvent*) override;
virtual void onTimer (finalcut::FTimerEvent*) override;
// Data Members
finalcut::FLabel left_arrow{this};
finalcut::FLabel right_arrow{this};
finalcut::FLabel top_left_label{this};
finalcut::FLabel top_right_label{this};
finalcut::FLabel bottom_label{this};
};
#pragma pack(pop)
//----------------------------------------------------------------------
SmallWindow::SmallWindow (finalcut::FWidget* parent)
: finalcut::FDialog(parent)
{
wchar_t arrow_up, arrow_down;
arrow_up = finalcut::fc::BlackUpPointingTriangle;
arrow_down = finalcut::fc::BlackDownPointingTriangle;
left_arrow = arrow_up;
left_arrow.setForegroundColor (wc.label_inactive_fg);
left_arrow.setEmphasis();
left_arrow.ignorePadding();
left_arrow.setGeometry (2, 2, 1, 1);
right_arrow = arrow_up;
right_arrow.setForegroundColor (wc.label_inactive_fg);
right_arrow.setEmphasis();
right_arrow.ignorePadding();
right_arrow.setGeometry (int(getWidth()) - 1, 2, 1, 1);
top_left_label = "menu";
top_left_label.setForegroundColor (wc.label_inactive_fg);
top_left_label.setEmphasis();
top_left_label.setGeometry (1, 1, 6, 1);
top_right_label = "zoom";
top_right_label.setAlignment (finalcut::fc::alignRight);
top_right_label.setForegroundColor (wc.label_inactive_fg);
top_right_label.setEmphasis();
top_right_label.setGeometry (int(getClientWidth()) - 5, 1, 6, 1);
finalcut::FString bottom_label_text = "resize\n"
"corner\n";
bottom_label_text += arrow_down;
bottom_label = bottom_label_text;
bottom_label.setAlignment (finalcut::fc::alignRight);
bottom_label.setForegroundColor (wc.label_inactive_fg);
bottom_label.setEmphasis();
bottom_label.setGeometry (13, 3, 6, 3);
}
//----------------------------------------------------------------------
SmallWindow::~SmallWindow()
{
// Remove own timer
delOwnTimer();
}
//----------------------------------------------------------------------
void SmallWindow::adjustSize()
{
if ( isZoomed() )
{
top_right_label = "unzoom";
bottom_label.hide();
}
else
{
top_right_label = "zoom";
bottom_label.setVisible();
}
finalcut::FDialog::adjustSize();
right_arrow.setGeometry (int(getWidth()) - 1, 2, 1, 1);
top_right_label.setGeometry (int(getClientWidth()) - 5, 1, 6, 1);
bottom_label.setGeometry (1, int(getClientHeight()) - 2, getClientWidth(), 3);
}
//----------------------------------------------------------------------
void SmallWindow::onShow (finalcut::FShowEvent*)
{
addTimer(1000);
}
//----------------------------------------------------------------------
void SmallWindow::onTimer (finalcut::FTimerEvent*)
{
left_arrow.unsetEmphasis();
left_arrow.redraw();
right_arrow.unsetEmphasis();
right_arrow.redraw();
top_left_label.unsetEmphasis();
top_left_label.redraw();
top_right_label.unsetEmphasis();
top_right_label.redraw();
bottom_label.unsetEmphasis();
bottom_label.redraw();
updateTerminal();
delOwnTimer();
}
//----------------------------------------------------------------------
// class Window
//----------------------------------------------------------------------
#pragma pack(push)
#pragma pack(1)
class Window : public finalcut::FDialog
{
public:
// Constructor
explicit Window (finalcut::FWidget* = nullptr);
// Disable copy constructor
Window (const Window&) = delete;
// Destructor
~Window();
// Disable assignment operator (=)
Window& operator = (const Window&) = delete;
private:
// Typedefs
typedef void (Window::*WindowCallback)(finalcut::FWidget*, FDataPtr);
typedef void (finalcut::FApplication::*FAppCallback)(finalcut::FWidget*, FDataPtr);
struct win_data
{
// Constructor
win_data() = default;
// Disable copy constructor
win_data (const win_data&) = delete;
// Disable assignment operator (=)
win_data& operator = (const win_data&) = delete;
// Data Members
bool is_open{false};
finalcut::FString title{};
SmallWindow* dgl{nullptr};
};
// Method
void configureFileMenuItems();
void configureDialogButtons();
void activateWindow (finalcut::FDialog*);
virtual void adjustSize() override;
void addClickedCallback (finalcut::FWidget*, WindowCallback);
void addClickedCallback (finalcut::FWidget*, FAppCallback);
// Event handlers
virtual void onClose (finalcut::FCloseEvent*) override;
// Callback methods
void cb_createWindows (finalcut::FWidget*, FDataPtr);
void cb_closeWindows (finalcut::FWidget*, FDataPtr);
void cb_next (finalcut::FWidget*, FDataPtr);
void cb_previous (finalcut::FWidget*, FDataPtr);
void cb_destroyWindow (finalcut::FWidget*, FDataPtr);
// Data Members
std::vector<win_data*> windows{};
finalcut::FString drop_down_symbol{finalcut::fc::BlackDownPointingTriangle};
finalcut::FMenuBar Menubar{this};
finalcut::FMenu File{"&File", &Menubar};
finalcut::FDialogListMenu DglList{drop_down_symbol, &Menubar};
finalcut::FStatusBar Statusbar{this};
finalcut::FMenuItem New{"&New", &File};
finalcut::FMenuItem Close{"&Close", &File};
finalcut::FMenuItem Line1{&File};
finalcut::FMenuItem Next{"Ne&xt window", &File};
finalcut::FMenuItem Previous{"&Previous window", &File};
finalcut::FMenuItem Line2{&File};
finalcut::FMenuItem Quit{"&Quit", &File};
finalcut::FButton CreateButton{this};
finalcut::FButton CloseButton{this};
finalcut::FButton QuitButton{this};
};
#pragma pack(pop)
//----------------------------------------------------------------------
Window::Window (finalcut::FWidget* parent)
: finalcut::FDialog(parent)
{
// Menu bar item
File.setStatusbarMessage ("File management commands");
// Dialog list menu item
DglList.setStatusbarMessage ("List of all the active dialogs");
// File menu items
configureFileMenuItems();
// Dialog buttons
configureDialogButtons();
// Statusbar at the bottom
Statusbar.setMessage("Status bar message");
// Generate data vector for the windows
for (int n = 1; n <= 6; n++)
{
auto win_dat = new win_data;
win_dat->title.sprintf("Window %1d", n);
windows.push_back(win_dat);
}
}
//----------------------------------------------------------------------
Window::~Window()
{
auto iter = windows.begin();
while ( iter != windows.end() )
{
auto win_dat = *iter;
// Remove all callbacks before Window::cb_destroyWindow() will be called
if ( win_dat->is_open && win_dat->dgl )
win_dat->dgl->delCallbacks();
delete win_dat;
iter = windows.erase(iter);
}
}
//----------------------------------------------------------------------
void Window::configureFileMenuItems()
{
// "File" menu item setting
New.setStatusbarMessage ("Create the windows");
Close.setStatusbarMessage ("Close the windows");
Line1.setSeparator();
Next.addAccelerator (finalcut::fc::Fmkey_npage); // Meta/Alt + PgDn
Next.setStatusbarMessage ("Switch to the next window");
Previous.addAccelerator (finalcut::fc::Fmkey_ppage); // Meta/Alt + PgUp
Previous.setStatusbarMessage ("Switch to the previous window");
Line2.setSeparator();
Quit.addAccelerator (finalcut::fc::Fmkey_x); // Meta/Alt + X
Quit.setStatusbarMessage ("Exit the program");
// Add menu item callback
addClickedCallback (&New, &Window::cb_createWindows);
addClickedCallback (&Close, &Window::cb_closeWindows);
addClickedCallback (&Next, &Window::cb_next);
addClickedCallback (&Previous, &Window::cb_previous);
addClickedCallback (&Quit, &finalcut::FApplication::cb_exitApp);
}
//----------------------------------------------------------------------
void Window::configureDialogButtons()
{
// Dialog buttons
CreateButton.setGeometry (2, 2, 9, 1);
CreateButton.setText (L"&Create");
CloseButton.setGeometry (15, 2, 9, 1);
CloseButton.setText (L"C&lose");
QuitButton.setGeometry (28, 2, 9, 1);
QuitButton.setText (L"&Quit");
// Add button callback
addClickedCallback (&CreateButton, &Window::cb_createWindows);
addClickedCallback (&CloseButton, &Window::cb_closeWindows);
addClickedCallback (&QuitButton, &finalcut::FApplication::cb_exitApp);
}
//----------------------------------------------------------------------
void Window::activateWindow (finalcut::FDialog* win)
{
if ( ! win || win->isWindowHidden() || win->isWindowActive() )
return;
bool has_raised = finalcut::FWindow::raiseWindow(win);
win->activateDialog();
if ( has_raised )
win->redraw();
updateTerminal();
}
//----------------------------------------------------------------------
void Window::adjustSize()
{
std::size_t w = getRootWidget()->getWidth();
std::size_t h = getRootWidget()->getHeight();
int X = int(1 + (w - 40) / 2)
, Y = int(1 + (h - 22) / 2)
, dx = ( w > 80 ) ? int(w - 80) / 2 : 0
, dy = ( h > 24 ) ? int(h - 24) / 2 : 0;
if ( Y < 2 )
Y = 2;
setPos (X, Y);
auto first = windows.begin();
auto iter = first;
while ( iter != windows.end() )
{
if ( (*iter)->is_open )
{
int n = int(std::distance(first, iter))
, x = dx + 5 + (n % 3) * 25 + int(n / 3) * 3
, y = dy + 11 + int(n / 3) * 3;
(*iter)->dgl->setPos (x, y);
}
++iter;
}
finalcut::FDialog::adjustSize();
}
//----------------------------------------------------------------------
void Window::addClickedCallback ( finalcut::FWidget* widget
, WindowCallback call )
{
FMemberCallback callback
= reinterpret_cast<finalcut::FWidget::FMemberCallback>(call);
widget->addCallback
(
"clicked",
F_METHOD_CALLBACK (this, callback)
);
}
//----------------------------------------------------------------------
void Window::addClickedCallback ( finalcut::FWidget* widget
, FAppCallback call )
{
FMemberCallback callback
= reinterpret_cast<finalcut::FWidget::FMemberCallback>(call);
widget->addCallback
(
"clicked",
F_METHOD_CALLBACK (this, callback)
);
}
//----------------------------------------------------------------------
void Window::onClose (finalcut::FCloseEvent* ev)
{
finalcut::FApplication::closeConfirmationDialog (this, ev);
}
//----------------------------------------------------------------------
void Window::cb_createWindows (finalcut::FWidget*, FDataPtr)
{
auto first = windows.begin();
auto iter = first;
auto w = getRootWidget()->getWidth();
auto h = getRootWidget()->getHeight();
int dx = ( w > 80 ) ? int(w - 80) / 2 : 0;
int dy = ( h > 24 ) ? int(h - 24) / 2 : 0;
while ( iter != windows.end() )
{
if ( ! (*iter)->is_open )
{
auto win_dat = *iter;
auto win = new SmallWindow(this);
win_dat->dgl = win;
win_dat->is_open = true;
win->setText(win_dat->title);
int n = int(std::distance(first, iter))
, x = dx + 5 + (n % 3) * 25 + int(n / 3) * 3
, y = dy + 11 + int(n / 3) * 3;
win->setGeometry (x, y, 20, 8);
win->setMinimumSize (20, 8);
win->setResizeable();
win->show();
win->addCallback
(
"destroy",
F_METHOD_CALLBACK (this, &Window::cb_destroyWindow),
static_cast<FDataPtr>(win_dat)
);
}
++iter;
}
activateWindow(this);
}
//----------------------------------------------------------------------
void Window::cb_closeWindows (finalcut::FWidget*, FDataPtr)
{
if ( ! dialog_list || dialog_list->empty() )
return;
auto iter = dialog_list->end();
auto first = dialog_list->begin();
activateWindow(this);
do
{
--iter;
if ( (*iter) != this )
(*iter)->close();
}
while ( iter != first );
}
//----------------------------------------------------------------------
void Window::cb_next (finalcut::FWidget*, FDataPtr)
{
if ( ! dialog_list || dialog_list->empty() )
return;
auto iter = dialog_list->begin();
while ( iter != dialog_list->end() )
{
if ( static_cast<finalcut::FWindow*>(*iter)->isWindowActive() )
{
finalcut::FDialog* next;
auto next_element = iter;
do
{
++next_element;
if ( next_element == dialog_list->end() )
next_element = dialog_list->begin();
next = static_cast<finalcut::FDialog*>(*next_element);
} while ( ! next->isEnabled()
|| ! next->acceptFocus()
|| ! next->isVisible()
|| ! next->isWindowWidget() );
activateWindow(next);
break;
}
++iter;
}
}
//----------------------------------------------------------------------
void Window::cb_previous (finalcut::FWidget*, FDataPtr)
{
if ( ! dialog_list || dialog_list->empty() )
return;
auto iter = dialog_list->end();
do
{
--iter;
if ( (*iter)->isDialogWidget()
&& static_cast<finalcut::FWindow*>(*iter)->isWindowActive() )
{
finalcut::FDialog* prev;
auto prev_element = iter;
do
{
if ( prev_element == dialog_list->begin() )
prev_element = dialog_list->end();
--prev_element;
prev = static_cast<finalcut::FDialog*>(*prev_element);
} while ( ! prev->isEnabled()
|| ! prev->acceptFocus()
|| ! prev->isVisible()
|| ! prev->isWindowWidget() );
activateWindow(prev);
break;
}
}
while ( iter != dialog_list->begin() );
}
//----------------------------------------------------------------------
void Window::cb_destroyWindow (finalcut::FWidget*, FDataPtr data)
{
auto win_dat = static_cast<win_data*>(data);
if ( win_dat )
{
win_dat->is_open = false;
win_dat->dgl = nullptr;
}
}
//----------------------------------------------------------------------
// main part
//----------------------------------------------------------------------
int main (int argc, char* argv[])
{
// Create the application object
finalcut::FApplication app (argc, argv);
// Create main dialog object
Window main_dlg (&app);
main_dlg.setText ("Main window");
main_dlg.setGeometry (int(1 + (app.getWidth() - 40) / 2), 2, 40, 6);
// Set dialog main_dlg as main widget
app.setMainWidget (&main_dlg);
// Show and start the application
main_dlg.show();
return app.exec();
}
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