-
-
Notifications
You must be signed in to change notification settings - Fork 3k
/
qgsrasterdrawer.h
54 lines (45 loc) · 1.93 KB
/
qgsrasterdrawer.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
/***************************************************************************
qgsrasterdrawer.h
-------------------
begin : June 2012
copyright : (C) 2012 by Radim Blazek
email : radim dot blazek at gmail.com
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef QGSRASTERDRAWER_H
#define QGSRASTERDRAWER_H
#include "qgsrasterinterface.h"
#include <QMap>
class QPainter;
class QImage;
class QgsMapToPixel;
struct QgsRasterViewPort;
class QgsRasterIterator;
/** \ingroup core
* The drawing pipe for raster layers.
*/
class QgsRasterDrawer
{
public:
QgsRasterDrawer( QgsRasterIterator* iterator );
~QgsRasterDrawer();
void draw( QPainter* p, QgsRasterViewPort* viewPort, const QgsMapToPixel* theQgsMapToPixel );
protected:
/**Draws raster part
@param p the painter to draw to
@param viewPort view port to draw to
@param img image to draw
@param topLeftCol Left position relative to left border of viewport
@param topLeftRow Top position relative to top border of viewport*/
void drawImage( QPainter* p, QgsRasterViewPort* viewPort, const QImage& img, int topLeftCol, int topLeftRow ) const;
private:
QgsRasterIterator* mIterator;
};
#endif // QGSRASTERDRAWER_H