diff options
-rw-r--r-- | src/FbTk/FbPixmap.cc | 70 |
1 files changed, 67 insertions, 3 deletions
diff --git a/src/FbTk/FbPixmap.cc b/src/FbTk/FbPixmap.cc index c966ab6..c627779 100644 --- a/src/FbTk/FbPixmap.cc +++ b/src/FbTk/FbPixmap.cc | |||
@@ -19,11 +19,15 @@ | |||
19 | // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | 19 | // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
20 | // DEALINGS IN THE SOFTWARE. | 20 | // DEALINGS IN THE SOFTWARE. |
21 | 21 | ||
22 | // $Id: FbPixmap.cc,v 1.2 2003/04/27 00:12:17 fluxgen Exp $ | 22 | // $Id: FbPixmap.cc,v 1.3 2003/04/27 23:56:13 fluxgen Exp $ |
23 | 23 | ||
24 | #include "FbPixmap.hh" | 24 | #include "FbPixmap.hh" |
25 | #include "App.hh" | 25 | #include "App.hh" |
26 | 26 | ||
27 | #include <X11/Xutil.h> | ||
28 | #include <iostream> | ||
29 | using namespace std; | ||
30 | |||
27 | namespace FbTk { | 31 | namespace FbTk { |
28 | 32 | ||
29 | FbPixmap::FbPixmap():m_pm(0), | 33 | FbPixmap::FbPixmap():m_pm(0), |
@@ -67,8 +71,8 @@ void FbPixmap::copyArea(Drawable src, GC gc, | |||
67 | XCopyArea(FbTk::App::instance()->display(), | 71 | XCopyArea(FbTk::App::instance()->display(), |
68 | src, m_pm, gc, | 72 | src, m_pm, gc, |
69 | src_x, src_y, | 73 | src_x, src_y, |
70 | dest_x, dest_y, | 74 | width, height, |
71 | width, height); | 75 | dest_x, dest_y); |
72 | } | 76 | } |
73 | 77 | ||
74 | void FbPixmap::fillRectangle(GC gc, int x, int y, | 78 | void FbPixmap::fillRectangle(GC gc, int x, int y, |
@@ -170,6 +174,66 @@ void FbPixmap::copy(const FbPixmap &the_copy) { | |||
170 | } | 174 | } |
171 | } | 175 | } |
172 | 176 | ||
177 | void FbPixmap::scale(unsigned int dest_width, unsigned int dest_height) { | ||
178 | if (drawable() == 0 || | ||
179 | (dest_width == width() && dest_height == height())) | ||
180 | return; | ||
181 | |||
182 | Display *dpy = FbTk::App::instance()->display(); | ||
183 | |||
184 | XImage *src_image = XGetImage(dpy, drawable(), | ||
185 | 0, 0, // pos | ||
186 | width(), height(), // size | ||
187 | ~0, // plane mask | ||
188 | ZPixmap); // format | ||
189 | if (src_image == 0) | ||
190 | return; | ||
191 | |||
192 | // create new pixmap with dest size | ||
193 | FbPixmap new_pm(drawable(), dest_width, dest_height, depth()); | ||
194 | |||
195 | GC gc = XCreateGC(dpy, drawable(), 0, 0); | ||
196 | |||
197 | // calc zoom | ||
198 | float zoom_x = static_cast<float>(width())/static_cast<float>(dest_width); | ||
199 | float zoom_y = static_cast<float>(height())/static_cast<float>(dest_height); | ||
200 | |||
201 | // start scaling | ||
202 | float src_x = 0, src_y = 0; | ||
203 | for (int tx=0; tx<dest_width; ++tx, src_x += zoom_x) { | ||
204 | src_y = 0; | ||
205 | for (int ty=0; ty<dest_height; ++ty, src_y += zoom_y) { | ||
206 | XSetForeground(dpy, gc, XGetPixel(src_image, | ||
207 | static_cast<int>(src_x), | ||
208 | static_cast<int>(src_y))); | ||
209 | XDrawPoint(dpy, new_pm.drawable(), gc, tx, ty); | ||
210 | |||
211 | |||
212 | } | ||
213 | } | ||
214 | |||
215 | XFreeGC(dpy, gc); | ||
216 | |||
217 | XDestroyImage(src_image); | ||
218 | |||
219 | // free old pixmap and set new from new_pm | ||
220 | free(); | ||
221 | |||
222 | m_width = new_pm.width(); | ||
223 | m_height = new_pm.height(); | ||
224 | m_depth = new_pm.depth(); | ||
225 | m_pm = new_pm.release(); | ||
226 | } | ||
227 | |||
228 | Pixmap FbPixmap::release() { | ||
229 | Pixmap ret = m_pm; | ||
230 | m_pm = 0; | ||
231 | m_width = 0; | ||
232 | m_height = 0; | ||
233 | m_depth = 0; | ||
234 | return ret; | ||
235 | } | ||
236 | |||
173 | void FbPixmap::free() { | 237 | void FbPixmap::free() { |
174 | if (m_pm != 0) { | 238 | if (m_pm != 0) { |
175 | XFreePixmap(FbTk::App::instance()->display(), m_pm); | 239 | XFreePixmap(FbTk::App::instance()->display(), m_pm); |