diff options
Diffstat (limited to 'pugl')
| -rw-r--r-- | pugl/pugl.h | 7 | ||||
| -rw-r--r-- | pugl/pugl_internal.h | 7 | ||||
| -rw-r--r-- | pugl/pugl_x11.c | 17 |
3 files changed, 30 insertions, 1 deletions
diff --git a/pugl/pugl.h b/pugl/pugl.h index a764620..f173525 100644 --- a/pugl/pugl.h +++ b/pugl/pugl.h @@ -55,6 +55,7 @@ typedef void (*PuglMouseFunc)(PuglWindow* handle, int button, bool down, int x, int y); typedef void (*PuglReshapeFunc)(PuglWindow* handle, int width, int height); +typedef void (*PuglScrollFunc)(PuglWindow* handle, int dx, int dy); /** Create a new GL window. @@ -120,6 +121,12 @@ void puglSetMouseFunc(PuglWindow* window, PuglMouseFunc mouseFunc); /** + Set the function to call on scroll events. +*/ +void +puglSetScrollFunc(PuglWindow* window, PuglScrollFunc scrollFunc); + +/** Set the function to call when the window size changes. */ void diff --git a/pugl/pugl_internal.h b/pugl/pugl_internal.h index 8a7b217..3685522 100644 --- a/pugl/pugl_internal.h +++ b/pugl/pugl_internal.h @@ -35,6 +35,7 @@ struct PuglWindowImpl { PuglMotionFunc motionFunc; PuglMouseFunc mouseFunc; PuglReshapeFunc reshapeFunc; + PuglScrollFunc scrollFunc; PuglPlatformData* impl; @@ -90,3 +91,9 @@ puglSetReshapeFunc(PuglWindow* window, PuglReshapeFunc reshapeFunc) { window->reshapeFunc = reshapeFunc; } + +void +puglSetScrollFunc(PuglWindow* window, PuglScrollFunc scrollFunc) +{ + window->scrollFunc = scrollFunc; +} diff --git a/pugl/pugl_x11.c b/pugl/pugl_x11.c index d8685b2..735cdb1 100644 --- a/pugl/pugl_x11.c +++ b/pugl/pugl_x11.c @@ -238,8 +238,23 @@ puglProcessEvents(PuglWindow* win) } break; case ButtonPress: + if (event.xbutton.button >= 4 && event.xbutton.button <= 7) { + if (win->scrollFunc) { + int dx = 0, dy = 0; + switch (event.xbutton.button) { + case 4: dy = 1; break; + case 5: dy = -1; break; + case 6: dx = -1; break; + case 7: dx = 1; break; + } + win->scrollFunc(win, dx, dy); + } + break; + } + // nobreak case ButtonRelease: - if (win->mouseFunc) { + if (win->mouseFunc && + (event.xbutton.button < 4 || event.xbutton.button > 7)) { win->mouseFunc(win, event.xbutton.button, event.type == ButtonPress, event.xbutton.x, event.xbutton.y); |