P.I.G.A.L.E.
1.3.9
Public Implementation of a Graph Algorithm
Library and Editor
H. de Fraysseix      P. Ossona de Mendez

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GraphWidget.h File Reference

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Detailed Description

Classes of the Pigale Editor.

Include dependency graph for GraphWidget.h:

This graph shows which files directly or indirectly include this file:

Classes

• class ArrowItem

  used to display an arrow whose size and loaction depends on the edge length More...
  

• class EdgeItem

  An edge is represented by two EdgeItem (corresponding to its lower and upper part) and an ArrowItem. More...
  

• class CursItem

  Used when creating an edge. More...
  

• class LineItem

  LineItem is used for the grid. More...
  

• class InfoItem

  Used to display some info. More...
  

• class ColorItem

  Are the coloured rectangles used to define the colors of vertices and edges. More...
  

• class ThickItem

  Used to modify the width of an edge. More...
  

• class NodeItem

  Used to represent a vertex with/witout a label. More...
  

• class GraphWidget

  widget of pigaleWindow More...
  

• class GraphEditor

  The main class of the Pigale Editor. More...
  

Functions

• bool & ShowOrientation ()
• int & ShowVertex ()
• NodeItem * CreateNodeItem (tvertex &v, GraphWidget *g)
• void CreateColorItems (GraphWidget *g, int color_node, int color_edge)
• void CreateThickItems (GraphWidget *g, int width_edge)
• InfoItem * CreateInfoItem (GraphWidget *g, QString &t, QPoint &p)
• EdgeItem * CreateEdgeItem (tedge &e, GraphWidget *g)
• void CreatePenBrush ()

Variables

• const int min_rtti = QGraphicsItem::UserType
• const int line_rtti = min_rtti+20
• const int arrow_rtti = min_rtti+11
• const int node_rtti = min_rtti+5
• const int col_rtti = min_rtti+6
• const int edge_rtti = min_rtti+7
• const int curs_rtti = min_rtti+8
• const int info_rtti = min_rtti+9
• const int thick_rtti = min_rtti+9
• const int grid_z = 1
• const int node_z = 127
• const int col_z = 2
• const int thick_z = 2
• const int edge_z = 126
• const int arrow_z = 125
• const int curs_z = 129
• const int inforect_z = 131
• const int info_z = 132
• const double xorient = .4
• const int sizerect = 12
• const int sizerecth = 8
• const int space = 1
• const int BORDER = 30

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Function Documentation

void CreateColorItems	(	GraphWidget *	g,
		int	color_node,
		int	color_edge
	)

creates the coloured rectangles used to recolor edges and vertices

EdgeItem* CreateEdgeItem	(	tedge &	e,
		GraphWidget *	g
	)

InfoItem* CreateInfoItem	(	GraphWidget *	g,
		QString &	t,
		QPoint &	p
	)

NodeItem* CreateNodeItem	(	tvertex &	v,
		GraphWidget *	g
	)

void CreatePenBrush

(

)

creates the pen and the brush used by all QGraphicsItem

void CreateThickItems	(	GraphWidget *	g,
		int	width_edge
	)

bool& ShowOrientation

(

)

int& ShowVertex

(

)

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Variable Documentation

const int arrow_rtti = min_rtti+11

Type indentifier of a LineItem.

const int arrow_z = 125

Z-coordinate of a EdgeItem.

const int BORDER = 30

spece + sizerect <= 13 for screens 800x600

const int col_rtti = min_rtti+6

Type indentifier of a NodeItem.

const int col_z = 2

Z-coordinate of a NodeItem.

const int curs_rtti = min_rtti+8

Type indentifier of a EdgeItem.

const int curs_z = 129

Z-coordinate of a ArrowItem.

const int edge_rtti = min_rtti+7

Type indentifier of a ColorItem.

const int edge_z = 126

Z-coordinate of a ThickItem.

const int grid_z = 1

Type indentifier of a ThickItem.

const int info_rtti = min_rtti+9

Type indentifier of a CursorItem.

const int info_z = 132

Z-coordinate of a rect containing the info.

const int inforect_z = 131

Z-coordinate of a CursItem.

const int line_rtti = min_rtti+20

const int min_rtti = QGraphicsItem::UserType

const int node_rtti = min_rtti+5

Type indentifier of a ArrowItem.

const int node_z = 127

Z-coordinate of the grid.

const int sizerect = 12

constant used to draw an arrow

const int sizerecth = 8

size and space are used to draw the color palets

const int space = 1

size and space are used to draw the thick palets

const int thick_rtti = min_rtti+9

Type indentifier of a InfoItem.

const int thick_z = 2

Z-coordinate of a ColorItem.

const double xorient = .4

Z-coordinate of a InfoItem.

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