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added rotate

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This commit is contained in:
fluxgen 2003-07-10 11:55:01 +00:00
parent ffead0ce00
commit 2ed0befbad
2 changed files with 39 additions and 2 deletions
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37
src/FbTk/FbPixmap.cc
View file

@ -19,7 +19,7 @@
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
// $Id: FbPixmap.cc,v 1.4 2003/04/29 08:53:24 fluxgen Exp $
// $Id: FbPixmap.cc,v 1.5 2003/07/10 11:55:01 fluxgen Exp $
#include "FbPixmap.hh"
#include "App.hh"
@ -132,6 +132,41 @@ void FbPixmap::copy(const FbPixmap &the_copy) {
}
}
void FbPixmap::rotate() {
Display *dpy = FbTk::App::instance()->display();
// make an image copy
XImage *src_image = XGetImage(dpy, drawable(),
0, 0, // pos
width(), height(), // size
~0, // plane mask
ZPixmap); // format
// reverse height/width for new pixmap
FbPixmap new_pm(drawable(), height(), width(), depth());
GC gc = XCreateGC(dpy, drawable(), 0, 0);
// copy new area
for (int y = 0; y < height(); ++y) {
for (int x = 0; x < width(); ++x) {
XSetForeground(dpy, gc, XGetPixel(src_image, x, y));
// revers coordinates
XDrawPoint(dpy, new_pm.drawable(), gc, y, x);
}
}
XFreeGC(dpy, gc);
XDestroyImage(src_image);
// free old pixmap and set new from new_pm
free();
m_width = new_pm.width();
m_height = new_pm.height();
m_depth = new_pm.depth();
m_pm = new_pm.release();
}
void FbPixmap::scale(unsigned int dest_width, unsigned int dest_height) {
if (drawable() == 0 ||
(dest_width == width() && dest_height == height()))

4
src/FbTk/FbPixmap.hh
View file

@ -19,7 +19,7 @@
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
// $Id: FbPixmap.hh,v 1.4 2003/04/29 08:52:51 fluxgen Exp $
// $Id: FbPixmap.hh,v 1.5 2003/07/10 11:55:01 fluxgen Exp $
#ifndef FBTK_FBPIXMAP_HH
#define FBTK_FBPIXMAP_HH
@ -45,6 +45,8 @@ public:
~FbPixmap();
void copy(const FbPixmap &the_copy);
/// rotates the pixmap 90 deg, not implemented!
void rotate();
/// scales the pixmap to specified size
void scale(unsigned int width, unsigned int height);
/// drops pixmap and returns it