paintwidget.h

#ifndef PAINTWIDGET_H
#define PAINTWIDGET_H

#include "globalcontainer.h"
#include "lbwallhelper.h"
#include "lbmathhelper.h"
#include "lbstairshelper.h"
#include "designwidgetmini.h"

using namespace std;




//none       - waiting for actions
//defining   - new field is being defined
//connecting - field is chosen and waiting for defining connectin
//enum STATE {none, defining, connecting};

class QTextEdit;
class QComboBOx;
class QCheckBox;
class LField;

  class DesignWidget : public QWidget
  {
      Q_OBJECT
  public:

      int scrollX, scrollY;

      //vector with fields is passed with pointer, because its shared betwee
      //this class and PreviewWidget
      DesignWidget(globalContainer *, QTextEdit*, DesignWidgetMini *DM, QWidget *parent = 0);

  protected:
      void paintEvent(QPaintEvent *event);

  private:

      void mousePressEvent(QMouseEvent *event);
      void mouseMoveEvent(QMouseEvent *);
      void mouseReleaseEvent(QMouseEvent *);
      //      void wheelEvent(QWheelEvent *);

      void setVariables();       
  public:
      //////////////////////////////////////
      void printInfo(const QString &text);
      void printWarning(const QString &text);
      void printError(const QString &text);
      void printSuccess(const QString &text);
      //////////////////////////////////////

  private:
      void drawGrid();
      void drawDefinedFields();
      void drawPointer();
      void drawDefinedField();

      void drawNewFloorLine();
      void drawFloorsSide();
      void drawFieldSide(LField *);

      void refreshFields();

      float giveScalar(float x1, float x2, float y1, float y2);

      QTextEdit *reportWidget;

      ///////////////////
      QPainter *painter;
      QPen pen;
      QBrush brush;
      ///////////////////


      void setDrawStyle(drawStyle);
      ///////////////////

      //design widget's size
      float worldSize;
      float gridSize;
      float clickedPos;

      //look out! mouseV has 3d coords - so it's not XY but XZ
      LVector mouseV;
      LVector selectedV;

      //which corner is defined now ?
      char cornerIndex;
      //ID of new field
      int fieldID;
      LVector newCorners[4];
      LField definedField;

      

      //      qreal SCALE;
      //      LVector worldV;

      //LObject *worldList;
      //LObject *floorsTree;
      //LField *actualFloor;
      //LObject *cameraKid; //object spied by camera
      //int *floorsAmount;

      globalContainer *GC;


      //is any field pointed right now ?
      bool isFieldPointed;
      LField *pointedField;

      DesignWidgetMini *designMini;
      
      //      QMatrix globalMatrix;
      //      QMatrix globalMatrix2;
  public:
      void pointOnField(LField* field);
      //chosen field for defining
      //      LField *chosenField;
      //second field, chosen after choosing first one
      //      LField *chosenField2;

  private:
      void removeField(LField *);

      void drawFloor(LBFloor *);
      void drawField(LField *);

      QCheckBox *drawBoxes;
      QCheckBox *renderBoxes;

      //int pointedFieldID;
      //int chosenFieldID;

      void drawPig();

      //index of chosen wall (can be changed with 'A' and 'D' keys)
  public:
      char chosenWall;
      void drawStairsTriangles();
      void addNewStairs();

      void drawWallParts();
      void drawBreakingHole();

      bool checkTouching();
      bool arePointsCollinear(LVector, LVector, LVector, LVector);

      //class helping in making holes in walls
      lbmathhelper MH;
      LBWallHelper *WH;
      lbStairsHelper *SH;

      /*
	global stairs needed - create them before adding passage
	set their attributes in addNewStairs() and than set to NULL
      */
      LBStairs *newStairs;

      //points on &WH or SH
      LBHelpersBase *HB;

      //things to reset on clicking with right mouse button
      void resetOnRMB();

      /*
	print distance between two points
	p1 and p2 are the points
	wallH is wall's height
	left and top are valuse for translations

	default values are 0.0f, because neither height,left or top are required
      */
      void drawDistPoints(LVector p1, LVector p2, float wallH = 0.0f, float left = 0.0f, float top = 0.0f);

  };

#endif // PAINTWIDGET_H