finalcut/include/final/fscrollbar.h

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/***********************************************************************
* fscrollbar.h - Widget FScrollbar *
* *
* This file is part of the Final Cut widget toolkit *
* *
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* Copyright 2012-2018 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
*
*
*
*
* FScrollbar
*
*/
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#ifndef FSCROLLBAR_H
#define FSCROLLBAR_H
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#if !defined (USE_FINAL_H) && !defined (COMPILE_FINAL_CUT)
#error "Only <final/final.h> can be included directly."
#endif
#include "final/fwidget.h"
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//----------------------------------------------------------------------
// class FScrollbar
//----------------------------------------------------------------------
#pragma pack(push)
#pragma pack(1)
class FScrollbar : public FWidget
{
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public:
// Using-declarations
using FWidget::setGeometry;
// Enumeration
enum sType
{
noScroll = 0,
scrollJump = 1,
scrollStepBackward = 2,
scrollStepForward = 3,
scrollPageBackward = 4,
scrollPageForward = 5,
scrollWheelUp = 6,
scrollWheelDown = 7
};
// Constructors
explicit FScrollbar(FWidget* = 0);
FScrollbar (int = fc::vertical, FWidget* = 0);
// Destructor
virtual ~FScrollbar();
// Accessors
const char* getClassName() const;
int getValue() const;
sType getScrollType() const;
// Mutators
void setMinimum (int);
void setMaximum (int);
void setRange (int, int);
void setValue (int);
void setSteps (double);
void setPageSize (int, int);
void setOrientation (int);
void setGeometry (int, int, int, int, bool = true);
// Methods
void resize();
void redraw();
void calculateSliderValues();
void drawVerticalBar();
void drawHorizontalBar();
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void drawBar();
// Event handlers
void onMouseDown (FMouseEvent*);
void onMouseUp (FMouseEvent*);
void onMouseMove (FMouseEvent*);
void onWheel (FWheelEvent*);
void onTimer (FTimerEvent*);
private:
// Disable copy constructor
FScrollbar (const FScrollbar&);
// Disable assignment operator (=)
FScrollbar& operator = (const FScrollbar&);
// Methods
void init();
void draw();
void drawButtons();
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sType getClickedScrollType (int, int);
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sType getVerticalClickedScrollType (int);
sType getHorizontalClickedScrollType (int);
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int getSliderClickPos (int, int);
void jumpToClickPos (int, int);
void jumpToClickPos (int);
void avoidScrollOvershoot();
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void processScroll();
// Data Members
sType scroll_type;
bool threshold_reached;
int threshold_time;
int repeat_time;
int slider_click_pos;
int slider_click_stop_pos;
int current_slider_pos;
int slider_pos;
int slider_length;
int bar_length;
int val;
int min;
int max;
double steps;
int pagesize;
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int length;
int bar_orientation;
int max_color;
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};
#pragma pack(pop)
// FScrollbar inline functions
//----------------------------------------------------------------------
inline const char* FScrollbar::getClassName() const
{ return "FScrollbar"; }
//----------------------------------------------------------------------
inline int FScrollbar::getValue() const
{ return val; }
//----------------------------------------------------------------------
inline FScrollbar::sType FScrollbar::getScrollType() const
{ return scroll_type; }
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#endif // FSCROLLBAR_H