finalcut/examples/listbox.cpp

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/***********************************************************************
* listbox.cpp - Example for using a FListBox widget *
* *
* This file is part of the Final Cut widget toolkit *
* *
* Copyright 2017-2018 Markus Gans *
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* *
* 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 <iostream>
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#include <list>
#include <map>
#include <fstream>
#include <final/final.h>
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using namespace finalcut;
// Global application object
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static std::shared_ptr<FString> temp_str { nullptr };
// Function prototypes
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void doubleToItem ( FListBoxItem&
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, FDataPtr container
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, int index);
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FString& doubleToString (std::list<double>::const_iterator iter);
FString& mapToString ( std::map<FString
, FString>::const_iterator iter );
// Lazy conversion import function
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void doubleToItem ( FListBoxItem& item
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, FDataPtr container, int index)
{
typedef std::list<double>* double_list_ptr;
double_list_ptr dbllist = static_cast<double_list_ptr>(container);
std::list<double>::iterator iter = dbllist->begin();
std::advance (iter, index);
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item.setText (FString() << *iter);
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item.setData (FDataPtr(&(*iter)));
}
// Import converter functions
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FString& doubleToString (std::list<double>::const_iterator iter)
{
return temp_str->setNumber(*iter);
}
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FString& mapToString ( std::map<FString
, FString>::const_iterator iter )
{
return *temp_str = iter->first + ": " + iter->second;
}
//----------------------------------------------------------------------
// class Listbox
//----------------------------------------------------------------------
#pragma pack(push)
#pragma pack(1)
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class Listbox : public FDialog
{
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public:
// Constructor
explicit Listbox (FWidget* = nullptr);
// Disable copy constructor
Listbox (const Listbox&) = delete;
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// Destructor
~Listbox();
// Disable assignment operator (=)
Listbox& operator = (const Listbox&) = delete;
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private:
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// Event handlers
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virtual void onClose (FCloseEvent*);
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// Data Member
std::list<double> double_list{};
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FListBox list1{this};
FListBox list2{this};
FListBox list3{this};
FButton Quit{this};
};
#pragma pack(pop)
//----------------------------------------------------------------------
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Listbox::Listbox (FWidget* parent)
: FDialog(parent)
{
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temp_str = std::make_shared<FString>();
// listbox 1
//----------
list1.setGeometry(2, 1, 18, 10);
list1.setText ("FListBoxItem");
for (int i = 1; i < 30; i++)
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list1.insert (L"----- " + (FString() << i) + L" -----");
// listbox 2
//----------
for (double i = 1; i<=15; i++)
double_list.push_back(2 * i + (i / 100));
list2.setGeometry(21, 1, 10, 10);
list2.setText ("double");
//
// Import via lazy conversion on print
//
list2.insert (&double_list, doubleToItem);
//
// Direct import of the complete list
//
//list2.insert (double_list.begin(), double_list.end(), doubleToString);
// listbox 3
//----------
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std::map<FString, FString> TLD;
TLD["com"] = "Commercial";
TLD["org"] = "Organization";
TLD["net"] = "Network";
TLD["edu"] = "Education";
TLD["gov"] = "Government";
list3.insert (TLD.begin(), TLD.end(), mapToString);
list3.setGeometry(32, 1, 21, 10);
list3.setText ("key: value");
// Quit button
Quit.setGeometry(42, 12, 10, 1);
Quit.setText (L"&Quit");
// Add quit button function callback
Quit.addCallback
(
"clicked",
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F_METHOD_CALLBACK (this, &FApplication::cb_exitApp)
);
}
//----------------------------------------------------------------------
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Listbox::~Listbox() // destructor
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{ }
//----------------------------------------------------------------------
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void Listbox::onClose (FCloseEvent* ev)
{
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FApplication::closeConfirmationDialog (this, ev);
}
//----------------------------------------------------------------------
// main part
//----------------------------------------------------------------------
int main (int argc, char* argv[])
{
// Create the application object
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FApplication app(argc, argv);
// Create main dialog object
Listbox d(&app);
d.setText (L"Listbox");
d.setGeometry (int(1 + (app.getWidth() - 56) / 2), 5, 56, 16);
d.setShadow();
// Set dialog d as main widget
app.setMainWidget(&d);
// Show and start the application
d.show();
return app.exec();
}