39 lines
1011 B
C++
39 lines
1011 B
C++
|
#include "GridOverlay.h"
|
||
|
|
|
||
|
|
#include <GL/gl.h>
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
GridOverlay::GridOverlay( double inAnchorX, double inAnchorY,
|
||
|
|
double inWidth, double inHeight,
|
||
|
|
int inNumCells, Color inColor )
|
||
|
|
: GUIComponentGL( inAnchorX, inAnchorY, inWidth, inHeight ),
|
||
|
|
mNumCells( inNumCells ),
|
||
|
|
mColor( inColor ) {
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
void GridOverlay::fireRedraw() {
|
||
|
|
|
||
|
|
|
||
|
|
double cellWidth = mWidth / mNumCells;
|
||
|
|
double cellHeight = mHeight / mNumCells;
|
||
|
|
|
||
|
|
|
||
|
|
glColor4f( mColor.r, mColor.g, mColor.b, mColor.a );
|
||
|
|
glBegin( GL_LINES ); {
|
||
|
|
|
||
|
|
for( int x=0; x<mNumCells+1; x++ ) {
|
||
|
|
glVertex2d( mAnchorX + x * cellWidth, mAnchorY );
|
||
|
|
glVertex2d( mAnchorX + x * cellWidth, mAnchorY + mHeight );
|
||
|
|
}
|
||
|
|
for( int y=0; y<mNumCells+1; y++ ) {
|
||
|
|
glVertex2d( mAnchorX, mAnchorY + y * cellHeight );
|
||
|
|
glVertex2d( mAnchorX + mWidth, mAnchorY + y * cellHeight );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
glEnd();
|
||
|
|
}
|
||
|
|
|