175 lines
3.7 KiB
C++
175 lines
3.7 KiB
C++
/**
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* WaypointList.hxx - scrolling list of waypoints, with special formatting
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*/
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#ifndef GUI_WAYPOINT_LIST_HXX
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#define GUI_WAYPOINT_LIST_HXX
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#include <simgear/compiler.h>
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#include <simgear/timing/timestamp.hxx>
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#include <plib/pu.h>
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#include "FGPUIDialog.hxx" // for GUI_ID
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// forward decls
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class puaScrollBar;
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class SGCallback;
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namespace flightgear {
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class Waypt;
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}
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class WaypointList : public puFrame, public GUI_ID
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{
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public:
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WaypointList(int x, int y, int width, int height);
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virtual ~WaypointList();
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virtual void setSize(int width, int height);
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virtual int checkHit ( int button, int updown, int x, int y);
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virtual void doHit( int button, int updown, int x, int y ) ;
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virtual void draw( int dx, int dy ) ;
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virtual int checkKey(int key, int updown);
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virtual void invokeDownCallback (void);
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void setSelected(int rowIndex);
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int getSelected();
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/**
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* Do we want a vertical scrollbar (or similar)
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*/
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bool wantsVScroll() const;
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/**
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* Get scrollbar position as a percentage of total range.
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* returns negative number if scrolling is not possible
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*/
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float getVScrollPercent() const;
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/**
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*
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*/
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void setVScrollPercent(float perc);
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/**
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* Get required thumb size as percentage of total height
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*/
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float getVScrollThumbPercent() const;
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int numVisibleRows() const;
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void ensureRowVisible(int row);
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void setUpdateCallback(SGCallback* cb);
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void setScrollCallback(SGCallback* cb);
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/**
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* Abstract interface for waypoint source
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*/
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class Model
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{
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public:
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virtual ~Model() { }
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virtual unsigned int numWaypoints() const = 0;
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virtual int currentWaypoint() const = 0;
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virtual flightgear::Waypt* waypointAt(unsigned int index) const = 0;
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// update notifications
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virtual void setUpdateCallback(SGCallback* cb) = 0;
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// editing operations
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virtual void deleteAt(unsigned int index) = 0;
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virtual void moveWaypointToIndex(unsigned int srcIndex, unsigned int dstIndex) = 0;
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};
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void setModel(Model* model);
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unsigned int numWaypoints() const;
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protected:
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private:
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void drawRow(int dx, int dy, int rowIndex, int yOrigin);
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void handleDrag(int x, int y);
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void doDrop(int x, int y);
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void doDragScroll();
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/**
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* Pixel height of a row, including padding
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*/
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int rowHeightPx() const;
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/**
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* model row corresponding to an on-screen y-value
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*/
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int rowForY(int y) const;
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/**
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* reutrn rowheight * total number of rows, i.e the height we'd
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* need to be to show every row without scrolling
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*/
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int totalHeightPx() const;
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/**
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* Pixel scroll range, based on widget height and number of rows
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*/
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int scrollRangePx() const;
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int firstVisibleRow() const;
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int lastVisibleRow() const;
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int numFullyVisibleRows() const;
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int firstFullyVisibleRow() const;
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int lastFullyVisibleRow() const;
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void modelUpdateCallback();
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int _scrollPx; // scroll ammount (in pixels)
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int _heightPx;
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bool _dragging;
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int _dragSourceRow;
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int _dragTargetRow;
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int _mouseDownX, _mouseDownY;
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int _dragScroll;
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SGTimeStamp _dragScrollTime;
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bool _showLatLon;
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Model* _model;
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SGCallback* _updateCallback;
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SGCallback* _scrollCallback;
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SGTimeStamp _blinkTimer;
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bool _blink;
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int _arrowWidth;
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};
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class ScrolledWaypointList : public puGroup
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{
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public:
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ScrolledWaypointList(int x, int y, int width, int height);
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virtual void setSize(int width, int height);
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void setScrollPercent(float v);
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virtual void setValue(float v);
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virtual void setValue(int v);
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private:
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void init(int w, int h);
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void updateScroll();
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void updateWantsScroll(int w, int h);
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void modelUpdated();
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puaScrollBar* _scrollbar;
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WaypointList* _list;
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int _scrollWidth;
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bool _hasVScroll;
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};
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#endif // GUI_WAYPOINT_LIST_HXX
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