finalcut/include/final/ftextview.h

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/***********************************************************************
* ftextview.h - Widget FTextView (a multiline text viewer) *
* *
* This file is part of the Final Cut widget toolkit *
* *
* Copyright 2014-2018 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/>. *
***********************************************************************/
/* Inheritance diagram
*
*
*
* FTerm
*
*
*
*
* FVTerm FObject
*
*
*
*
*
*
* FWidget
*
*
*
*
* FTextView
*
*/
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#ifndef FTEXTVIEW_H
#define FTEXTVIEW_H
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#if !defined (USE_FINAL_H) && !defined (COMPILE_FINAL_CUT)
#error "Only <final/final.h> can be included directly."
#endif
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#include <vector>
#include "final/fapplication.h"
#include "final/fscrollbar.h"
#include "final/fstatusbar.h"
#include "final/fstring.h"
#include "final/fwidget.h"
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//----------------------------------------------------------------------
// class FTextView
//----------------------------------------------------------------------
#pragma pack(push)
#pragma pack(1)
class FTextView : public FWidget
{
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public:
// Using-declarations
using FWidget::setGeometry;
// Constructor
explicit FTextView (FWidget* = 0);
// Destructor
~FTextView();
// Accessors
const char* getClassName() const;
uInt getColumns() const;
uInt getRows() const;
const FString getText() const;
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const FStringList& getLines() const;
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// Mutators
void setGeometry (int, int, int, int, bool = true);
void setText (const FString&);
void scrollToX (int);
void scrollToY (int);
void scrollTo (const FPoint&);
void scrollTo (int, int);
void scrollBy (int, int);
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// Methods
void hide();
void append (const FString&);
void insert (const FString&, int);
void replaceRange (const FString&, int, int);
void deleteRange (int, int);
void deleteLine (int);
void clear();
// Event handlers
void onKeyPress (FKeyEvent*);
void onMouseDown (FMouseEvent*);
void onMouseUp (FMouseEvent*);
void onMouseMove (FMouseEvent*);
void onWheel (FWheelEvent*);
void onFocusIn (FFocusEvent*);
void onFocusOut (FFocusEvent*);
protected:
// Method
void adjustSize();
private:
// Disable copy constructor
FTextView (const FTextView&);
// Disable assignment operator (=)
FTextView& operator = (const FTextView&);
// Accessors
int getTextHeight();
int getTextWidth();
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// Methods
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void init();
void draw();
void drawText();
void processChanged();
void drawHBar();
void drawVBar();
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// Callback methods
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void cb_VBarChange (FWidget*, data_ptr);
void cb_HBarChange (FWidget*, data_ptr);
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// Data Members
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FStringList data;
FScrollbar* vbar;
FScrollbar* hbar;
bool update_scrollbar;
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int xoffset;
int yoffset;
int nf_offset;
uInt maxLineWidth;
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};
#pragma pack(pop)
// FListBox inline functions
//----------------------------------------------------------------------
inline const char* FTextView::getClassName() const
{ return "FTextView"; }
//----------------------------------------------------------------------
inline uInt FTextView::getColumns() const
{ return maxLineWidth; }
//----------------------------------------------------------------------
inline uInt FTextView::getRows() const
{ return uInt(data.size()); }
//----------------------------------------------------------------------
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inline const FStringList& FTextView::getLines() const
{ return data; }
//----------------------------------------------------------------------
inline void FTextView::scrollTo (const FPoint& pos)
{ scrollTo(pos.getX(), pos.getY()); }
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//----------------------------------------------------------------------
inline void FTextView::deleteRange (int from, int to)
{ replaceRange (FString(), from, to); }
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//----------------------------------------------------------------------
inline void FTextView::deleteLine (int pos)
{ deleteRange (pos, pos); }
#endif // FTEXTVIEW_H