finalcut/test/scrollview.cpp

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// File: scrollview.cpp
#include "fapp.h"
#include "fbutton.h"
#include "fdialog.h"
#include "flabel.h"
#include "fmessagebox.h"
#include "fscrollview.h"
//----------------------------------------------------------------------
// class scrollview
//----------------------------------------------------------------------
#pragma pack(push)
#pragma pack(1)
class scrollview : public FScrollView
{
public:
// Constructor
explicit scrollview (FWidget* = 0);
// Destructor
~scrollview ();
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// Mutator
void setScrollSize (int, int);
private:
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// Method
void draw();
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// Callback methods
void cb_go_east (FWidget*, void*);
void cb_go_south (FWidget*, void*);
void cb_go_west (FWidget*, void*);
void cb_go_north (FWidget*, void*);
// Data Members
FButton* go_east;
FButton* go_south;
FButton* go_west;
FButton* go_north;
};
#pragma pack(pop)
//----------------------------------------------------------------------
scrollview::scrollview (FWidget* parent)
: FScrollView(parent)
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{
go_east = new FButton(wchar_t(fc::BlackRightPointingPointer) , this);
go_east->setGeometry (1, 1, 5, 1);
go_south = new FButton(wchar_t(fc::BlackDownPointingTriangle) , this);
go_south->setGeometry (getScrollWidth() - 5, 1, 5, 1);
go_west = new FButton(wchar_t(fc::BlackLeftPointingPointer) , this);
go_west->setGeometry (getScrollWidth() - 5, getScrollHeight() - 2, 5, 1);
go_north = new FButton(wchar_t(fc::BlackUpPointingTriangle) , this);
go_north->setGeometry (1, getScrollHeight() - 2, 5, 1);
if ( isCygwinTerminal() )
{
go_south->setText ('v');
go_north->setText ('^');
}
go_east->addCallback
(
"clicked",
_METHOD_CALLBACK (this, &scrollview::cb_go_east)
);
go_south->addCallback
(
"clicked",
_METHOD_CALLBACK (this, &scrollview::cb_go_south)
);
go_west->addCallback
(
"clicked",
_METHOD_CALLBACK (this, &scrollview::cb_go_west)
);
go_north->addCallback
(
"clicked",
_METHOD_CALLBACK (this, &scrollview::cb_go_north)
);
}
//----------------------------------------------------------------------
scrollview::~scrollview()
{ }
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//----------------------------------------------------------------------
void scrollview::setScrollSize (int width, int height)
{
FScrollView::setScrollSize (width, height);
go_south->setPos (width - 5, 1);
go_west->setPos (width - 5, height - 1);
go_north->setPos (1, height - 1);
}
//----------------------------------------------------------------------
void scrollview::draw()
{
setColor (wc.dialog_fg, wc.dialog_bg);
clearArea();
for (int y=0; y < getScrollHeight(); y++)
{
setPrintPos (1, 1 + y);
for (int x=0; x < getScrollWidth(); x++)
print (32 + ((x + y) % 0x5f));
}
FScrollView::draw();
}
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//----------------------------------------------------------------------
void scrollview::cb_go_east (FWidget*, void*)
{
scrollToX (getScrollWidth() - getViewportWidth() + 1);
go_south->setFocus();
go_east->redraw();
go_south->redraw();
}
//----------------------------------------------------------------------
void scrollview::cb_go_south (FWidget*, void*)
{
scrollToY (getScrollHeight() - getViewportHeight() + 1);
go_west->setFocus();
go_south->redraw();
go_west->redraw();
}
//----------------------------------------------------------------------
void scrollview::cb_go_west (FWidget*, void*)
{
scrollToX (1);
go_north->setFocus();
go_west->redraw();
go_north->redraw();}
//----------------------------------------------------------------------
void scrollview::cb_go_north (FWidget*, void*)
{
scrollToY (1);
go_east->setFocus();
go_north->redraw();
go_east->redraw();
}
//----------------------------------------------------------------------
// class scrollviewdemo
//----------------------------------------------------------------------
#pragma pack(push)
#pragma pack(1)
class scrollviewdemo : public FDialog
{
public:
// Constructor
explicit scrollviewdemo (FWidget* = 0);
// Destructor
~scrollviewdemo ();
// Event handler
void onClose (FCloseEvent*);
// Callback method
void cb_quit (FWidget* = 0, void* = 0);
};
#pragma pack(pop)
//----------------------------------------------------------------------
scrollviewdemo::scrollviewdemo (FWidget* parent)
: FDialog(parent)
{
setGeometry (16, 3, 50, 19);
setText ("Scrolling viewport example");
// The scrolling viewport widget
scrollview* sview = new scrollview (this);
sview->setGeometry(3, 2, 44, 12);
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sview->setScrollSize(188, 124);
// Quit button
FButton* button = new FButton("&Quit", this);
button->setGeometry(37, 15, 10, 1);
// Add function callback
button->addCallback
(
"clicked",
_METHOD_CALLBACK (this, &scrollviewdemo::cb_quit)
);
// Text label
FLabel* label = new FLabel (this);
label->setGeometry(2, 1, 46, 1);
label->setText (L"Use scrollbars to change the viewport position");
label->setEmphasis();
}
//----------------------------------------------------------------------
scrollviewdemo::~scrollviewdemo()
{ }
//----------------------------------------------------------------------
void scrollviewdemo::cb_quit (FWidget*, void*)
{
close();
}
//----------------------------------------------------------------------
void scrollviewdemo::onClose (FCloseEvent* ev)
{
int ret = FMessageBox::info ( this, "Quit"
, "Do you really want\n"
"to quit the program ?"
, FMessageBox::Yes
, FMessageBox::No );
if ( ret == FMessageBox::Yes )
ev->accept();
else
ev->ignore();
}
//----------------------------------------------------------------------
// main part
//----------------------------------------------------------------------
int main (int argc, char* argv[])
{
// Create the application object
FApplication app(argc, argv);
// Create a simple dialog box
scrollviewdemo svdemo(&app);
app.setMainWidget(&svdemo);
svdemo.show();
return app.exec();
}