XQGraphPainter Class Reference

#include <graphpainter.h>

Inheritance diagram for XQGraphPainter:

Classes
struct	Text

Public Types
enum	SelectionMode {   SelNone, SelPoint, SelAxis, SelPlane,   TiltTracking }
	Selections.
enum	SelectionState { SelStart, SelFinish, Selecting }

Public Member Functions
	XQGraphPainter (const shared_ptr< XGraph > &graph, XQGraph *item)
void	selectObjs (int x, int y, SelectionState state, SelectionMode mode=SelNone)
void	wheel (int x, int y, double deg)
void	zoom (double zoomscale, int x, int y)
void	showHelp ()
void	repaintGraph (int x1, int y1, int x2, int y2)
	Repaint Off-screen obj, Paint On-screen obj.
void	viewRotate (double angle, double x, double y, double z, bool init=false)
void	setColor (float r, float g, float b, float a=1.0f)
	drawings
void	setColor (unsigned int rgb, float a=1.0f)
void	setVertex (const XGraph::ScrPoint &p)
void	beginLine (double size=1.0)
void	endLine ()
void	beginPoint (double size=1.0)
void	endPoint ()
void	beginQuad (bool fill=false)
void	endQuad ()
void	drawText (const XGraph::ScrPoint &p, const XString &str)
void	posOffAxis (const XGraph::ScrPoint &dir, XGraph::ScrPoint *src, XGraph::SFloat offset)
void	defaultFont ()
int	selectFont (const XString &str, const XGraph::ScrPoint &start, const XGraph::ScrPoint &dir, const XGraph::ScrPoint &width, int sizehint=0)
float	resScreen ()
	minimum resolution of screen coordinate.
void	initializeGL ()
	openGL stuff
void	resizeGL (int width, int height)
void	paintGL ()

Private Member Functions
int	windowToScreen (int x, int y, double z, XGraph::ScrPoint *scr)
int	screenToWindow (const XGraph::ScrPoint &scr, double *x, double *y, double *z)
double	selectPlane (int x, int y, int dx, int dy, XGraph::ScrPoint *scr, XGraph::ScrPoint *dsdx, XGraph::ScrPoint *dsdy)
double	selectAxis (int x, int y, int dx, int dy, XGraph::ScrPoint *scr, XGraph::ScrPoint *dsdx, XGraph::ScrPoint *dsdy)
double	selectPoint (int x, int y, int dx, int dy, XGraph::ScrPoint *scr, XGraph::ScrPoint *dsdx, XGraph::ScrPoint *dsdy)
void	onRedraw (const Snapshot &shot, XGraph *graph)
void	repaintBuffer (int x1, int y1, int x2, int y2)
void	redrawOffScreen ()
Snapshot	startDrawing ()
	Draws plots, axes.
void	drawOffScreenGrids (const Snapshot &shot)
void	drawOffScreenPlaneMarkers (const Snapshot &shot)
	for selectGL()
void	drawOffScreenPoints (const Snapshot &shot)
void	drawOffScreenAxes (const Snapshot &shot)
void	drawOffScreenAxisMarkers (const Snapshot &shot)
void	drawOnScreenObj (const Snapshot &shot)
	depends on viewpoint
void	drawOnScreenViewObj (const Snapshot &shot)
	independent of viewpoint. For coordinate, legend, hints. title,...
void	drawOnScreenHelp (const Snapshot &shot, QPainter *qpainter)
shared_ptr< XAxis >	findAxis (const Snapshot &shot, const XGraph::ScrPoint &s1)
shared_ptr< XPlot >	findPlane (const Snapshot &shot, const XGraph::ScrPoint &s1, shared_ptr< XAxis > *axis1, shared_ptr< XAxis > *axis2)
double	selectGL (int x, int y, int dx, int dy, GLint list, XGraph::ScrPoint *scr, XGraph::ScrPoint *dsdx, XGraph::ScrPoint *dsdy)
void	setInitView ()
void	drawTextOverpaint (QPainter &qpainter)

Private Attributes
double	m_pixel_ratio
shared_ptr< XListener >	m_lsnRedraw
const shared_ptr< XGraph >	m_graph
XQGraph *const	m_pItem
shared_ptr< XPlot >	m_foundPlane
shared_ptr< XAxis >	m_foundPlaneAxis1
shared_ptr< XAxis >	m_foundPlaneAxis2
shared_ptr< XAxis >	m_foundAxis
SelectionState	m_selectionStateNow
SelectionMode	m_selectionModeNow
XGraph::ScrPoint	m_startScrPos
XGraph::ScrPoint	m_startScrDX
XGraph::ScrPoint	m_startScrDY
XGraph::ScrPoint	m_finishScrPos
XGraph::ScrPoint	m_finishScrDX
XGraph::ScrPoint	m_finishScrDY
XString	m_onScreenMsg
int	m_selStartPos [2]
int	m_tiltLastPos [2]
int	m_pointerLastPos [2]
GLint	m_listpoints
GLint	m_listaxes
GLint	m_listaxismarkers
GLint	m_listgrids
GLint	m_listplanemarkers
bool	m_bIsRedrawNeeded
bool	m_bIsAxisRedrawNeeded
bool	m_bTilted
bool	m_bReqHelp
GLdouble	m_proj_rot [16]
GLdouble	m_proj [16]
GLdouble	m_model [16]
GLint	m_viewport [4]
std::vector< GLubyte >	m_lastFrame
	ghost stuff
XTime	m_modifiedTime
XTime	m_updatedTime
int	m_curFontSize
int	m_curAlign
std::vector< Text >	m_textOverpaint
QRgb	m_curTextColor

Detailed Description

A painter which holds off-screen pixmap and provides a way to draw not thread-safe

Definition at line 26 of file graphpainter.h.

Member Function Documentation

void XQGraphPainter::drawOffScreenAxisMarkers ( const Snapshot &  shot )

private

for selectGL()

Definition at line 634 of file graphpainter.cpp.

References posOffAxis(), and setColor().

Referenced by paintGL().

void XQGraphPainter::paintGL

(

)

Todo:

QGLContext might clear accumration buffer.

Definition at line 402 of file graphpaintergl.cpp.

References drawOffScreenAxisMarkers(), drawOffScreenPlaneMarkers(), drawOnScreenObj(), drawOnScreenViewObj(), m_lastFrame, and startDrawing().

void XQGraphPainter::posOffAxis	(	const XGraph::ScrPoint &	dir,
		XGraph::ScrPoint *	src,
		XGraph::SFloat	offset
	)

make point outer perpendicular to dir by offset

Parameters

offset

> 0 for outer, < 0 for inner. unit is of screen coord.

Definition at line 38 of file graphpainter.cpp.

References windowToScreen().

Referenced by drawOffScreenAxisMarkers(), and drawOnScreenObj().

void XQGraphPainter::redrawOffScreen ( )

private

do as possible as you can without screen. e.g. compile primitives, or make pixmap.

Definition at line 120 of file graphpaintergl.cpp.

int XQGraphPainter::selectFont	(	const XString &	str,
		const XGraph::ScrPoint &	start,
		const XGraph::ScrPoint &	dir,
		const XGraph::ScrPoint &	width,
		int	sizehint = 0
	)

Parameters

start	where text be aligned
dir	a direction where text be aligned
width	perp. to dir, restricting font size

Returns

return 0 if succeeded

Definition at line 165 of file graphpaintergl.cpp.

Referenced by drawOnScreenViewObj().

double XQGraphPainter::selectPlane ( int  x, int  y, int  dx, int  dy, XGraph::ScrPoint *  scr, XGraph::ScrPoint *  dsdx, XGraph::ScrPoint *  dsdy  )

private

Selections

Parameters

x,y	center of clipping area
dx,dy	clipping width,height
dz	window of depth
scr	hits
dsdx,dsdy	diff. of 1 pixel

Returns

found depth

Definition at line 358 of file graphpaintergl.cpp.

void XQGraphPainter::viewRotate	(	double	angle,
		double	x,
		double	y,
		double	z,
		bool	init = false
	)

view

Parameters

angle	CCW
x,y,z	rotate axis
init	initialize view matrix or not

Definition at line 271 of file graphpaintergl.cpp.

Referenced by initializeGL().

int XQGraphPainter::windowToScreen ( int  x, int  y, double  z, XGraph::ScrPoint *  scr  )

private

coordinate conversions zero for success

Definition at line 94 of file graphpaintergl.cpp.

Referenced by posOffAxis().

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The documentation for this class was generated from the following files:

• kame/graph/graphpainter.h
• kame/graph/graphpainter.cpp
• kame/graph/graphpaintergl.cpp