[fltk.bugs] [LOW] STR #2943: Incorrect drawing of rounded box
DO NOT REPLY TO THIS MESSAGE. INSTEAD, POST ANY RESPONSES TO THE LINK BELOW. [STR New] Link: http://www.fltk.org/str.php?L2943 Version: 1.3-current If size of widget is quite small then FLTK draws incorrect rounded box, all four corners are different (upper fig. on the attached picture). I investigated the issue and found out a few things: to fix it first we need to do mathematically correct rounding of coordinates. In other words, instead fl_vertex(x,y) must be fl_vertex(x+0.5,y+0.5) (second fig.). In fact, I suppose the rounding of coordinates is wider problem in FLTK. Second, rbox will draw tidy corners only if size of their radius is even number (third fig.). And the latest, I rarely used rounded box because of ugly appearance (IMHO). On the contrary, often I needed straight box but without sharp corners. Setting the RS (max radius) to small value (2..6) gives me what I want.(fourth fig.) Maybe, something like RS should be part of widget properties or at least it would be mentioned in docs as customising point? Link: http://www.fltk.org/str.php?L2943 Version: 1.3-current rounded_box.tar.gz Description: Binary data ___ fltk-bugs mailing list fltk-bugs@easysw.com http://lists.easysw.com/mailman/listinfo/fltk-bugs
[fltk.bugs] Mac OS X Fl_Gl_Window bugs
I have found two major bugs in the Mac OS X implementation of Fl_Gl_Window. I will report the bugs in two separate postings. The first bug occurs with overlays on Fl_Gl_Windows. If either the OpenGL view transform or model transform are other than identity, then the code in Fl_Gl_Window::swap_buffers calling glCopyPixels to copy the GL_BACK to GL_FRONT has the wrong glRasterPos. I have code to fix this bug. Since I have not previously reported FLTK bug fixes, I would like to know the procedure that I should use. ___ fltk-bugs mailing list fltk-bugs@easysw.com http://lists.easysw.com/mailman/listinfo/fltk-bugs
[fltk.bugs] Mac OS X Fl_Gl_Window bugs
The Mac OS X Fl_Gl_Window implementation has a serious bug in the code for Fl_Gl_Window::make_current when Fl_Windows are nested. The computation for the x and y values of the xywh array passed to aglSetInteger(context_, AGL_BUFFER_RECT, xywh) does not take this nesting into account, causing the Gl_Window drawing area to be incorrectly placed inside the main window. I have code to fix this bug. Since I have not previously reported FLTK bug fixes, I would like to know the procedure that I should use. ___ fltk-bugs mailing list fltk-bugs@easysw.com http://lists.easysw.com/mailman/listinfo/fltk-bugs
Re: [fltk.bugs] Mac OS X Fl_Gl_Window bugs
On 04/03/13 18:34, Lynn Quam wrote: Since I have not previously reported FLTK bug fixes, I would like to know the procedure that I should use. Hi Lynn, Go to the main fltk.org page and click on 'Bugs Features', and then click Submit Bug or Feature Request, and follow the instructions from there. When you create a trouble report, you'll be able to enter text and attach things like patches, screenshots, etc. If you have a fix, best to supply it as a patch, either with 'diff -Naur', or 'svn diff' ___ fltk-bugs mailing list fltk-bugs@easysw.com http://lists.easysw.com/mailman/listinfo/fltk-bugs
Re: [fltk.bugs] Mac OS X Fl_Gl_Window bugs
I have found two major bugs in the Mac OS X implementation of Fl_Gl_Window. I will report the bugs in two separate postings. The first bug occurs with overlays on Fl_Gl_Windows. If either the OpenGL view transform or model transform are other than identity, then the code in Fl_Gl_Window::swap_buffers calling glCopyPixels to copy the GL_BACK to GL_FRONT has the wrong glRasterPos. I have code to fix this bug. Since I have not previously reported FLTK bug fixes, I would like to know the procedure that I should use. I forgot to mention that this problem is only triggered if some OpenGL code causes the glRasterPos to be changed from the bottom left corner of the Gl_Window. In my case, the application code called gl_draw(const char* str, int n) to draw a string into the Gl_Window, which changes the glRasterPos. ___ fltk-bugs mailing list fltk-bugs@easysw.com http://lists.easysw.com/mailman/listinfo/fltk-bugs
