PointBrush.cpp

//
// PointBrush.cpp
//
// The implementation of Point Brush. It is a kind of ImpBrush. All your brush implementations
// will look like the file with the different GL primitive calls.
//

#include "impressionistDoc.h"
#include "impressionistUI.h"
#include "pointbrush.h"
#include <iostream>
using namespace std;
extern float frand();

PointBrush::PointBrush( ImpressionistDoc* pDoc, char* name ) :
	ImpBrush(pDoc,name)
{
}

void PointBrush::BrushBegin( const Point source, const Point target )
{
	
	ImpressionistDoc* pDoc = GetDocument();
	ImpressionistUI* dlg=pDoc->m_pUI;
	if(!dlg->getEnableAutoDraw())
		saveState();
	int size = pDoc->getSize();
	glPointSize((float)size);

	BrushMove( source, target );
}

void PointBrush::BrushMove( const Point source, const Point target )
{
	ImpressionistDoc* pDoc = GetDocument();
	ImpressionistUI* dlg=pDoc->m_pUI;

	if ( pDoc == NULL ) {
		printf( "PointBrush::BrushMove  document is NULL\n" );
		return;
	}

	int x = target.x;
	int y = target.y;

	int startCol = dlg->m_paintView->getStartCol();
	int startRow = dlg->m_paintView->getStartRow() + dlg->m_mainWindow->h() - dlg->m_paintView->getDrawHeight() - 25;
	//int startRow = 0;
	int endCol = dlg->m_paintView->getEndCol();
	int endRow = startRow + dlg->m_paintView->getDrawHeight();

	if (x < startCol) {
		x = startCol;
	}

	if (x > endCol) {
		x = endCol;
	}

	if (y < startRow) {
		y = startRow;
	}

	if (y > endRow) {
		y = endRow;
	}
	

	
	glBegin( GL_POINTS );
		SetColor( source );

		glVertex2d( x,y );
		//cout << " (" << x << "," << y << ") " << endl;
	glEnd();
}

void PointBrush::BrushEnd( const Point source, const Point target )
{
	// do nothing so far
}

char* PointBrush::BrushName(void) {
	return ImpBrush::BrushName();
}