studio/src/plugins/landscape_editor/landscape_view.h

   1 // Object Viewer Qt - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
   2 // Copyright (C) 2011  Dzmitry KAMIAHIN (dnk-88) <dnk-88@tut.by>
   3 //
   4 // This program is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU Affero General Public License as
   6 // published by the Free Software Foundation, either version 3 of the
   7 // License, or (at your option) any later version.
   8 //
   9 // This program is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU Affero General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU Affero General Public License
  15 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 #ifndef LANDSCAPE_VIEW_H
  18 #define LANDSCAPE_VIEW_H
  19
  20 // Project includes
  21 #include "landscape_editor_global.h"
  22
  23 // Qt includes
  24 #include <QtGui/QGraphicsView>
  25 #include <QtGui/QWheelEvent>
  26
  27 namespace LandscapeEditor
  28 {
  29
  30 /**
  31 @class LandscapeView
  32 @brief Provides graphics view for viewing zone regions.
  33 @details Also provides zooming, panning and displaying grid
  34 */
  35 class LANDSCAPE_EDITOR_EXPORT LandscapeView: public QGraphicsView
  36 {
  37         Q_OBJECT
  38
  39 public:
  40         explicit LandscapeView(QWidget *parent = 0);
  41         virtual ~LandscapeView();
  42
  43         //Set the current centerpoint in the
  44         void setCenter(const QPointF &centerPoint);
  45         QPointF getCenter() const;
  46
  47         bool isVisibleGrid() const;
  48
  49 public Q_SLOTS:
  50
  51         /// Enable/disable displaying grid.
  52         void setVisibleGrid(bool visible);
  53
  54         /// Enable/disable displaying text(coord.) above each zone bricks.
  55         void setVisibleText(bool visible);
  56
  57 private Q_SLOTS:
  58 protected:
  59         //Take over the interaction
  60         virtual void wheelEvent(QWheelEvent *event);
  61         virtual void mousePressEvent(QMouseEvent *event);
  62         virtual void mouseMoveEvent(QMouseEvent *event);
  63         virtual void mouseReleaseEvent(QMouseEvent *event);
  64         virtual void drawForeground(QPainter *painter, const QRectF &rect);
  65         virtual void resizeEvent(QResizeEvent *event);
  66
  67         void drawGrid(QPainter *painter, const QRectF &rect);
  68         void drawZoneNames(QPainter *painter, const QRectF &rect);
  69 private:
  70
  71         bool m_visibleGrid, m_visibleText;
  72         qreal m_maxView, m_minView, m_maxViewText;
  73         int m_cellSize;
  74
  75         //Holds the current centerpoint for the view, used for panning and zooming
  76         QPointF m_currentCenterPoint;
  77
  78         //From panning the view
  79         QPoint m_lastPanPoint;
  80 }; /* class LandscapeView */
  81
  82 } /* namespace LandscapeEditor */
  83
  84 #endif // LANDSCAPE_VIEW_H