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path: root/src/Fl_Graphics_Driver.cxx
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2017-06-21Move line_width_ protected member variable from Fl_Xlib_Graphics_Driver to ↵Manolo Gouy
Fl_Scalable_Graphics_Driver git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12269 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-06-02Make sure the scaling factor has been initialised when setting a font.Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12248 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-05-17Introduce HiDPI + rescaling support for the X11 platform (+ partial support ↵Manolo Gouy
for WIN32) Corresponds to STR #3320 1) HiDPI support consists in detecting the adequate scaling factor for the screen on which FLTK maps a window, and scaling all FLTK units by this factor. FLTK tries to detect the correct value of this factor at startup (see more details below). Environment variable FLTK_SCALING_FACTOR can also be used to set this value. 2) Rescaling support consists in changing the scaling factor of all FLTK windows in reply to ctrl/+/-/0/ keystrokes. More details for the various platforms : - X11: Support is very advanced. Some details need still to be improved. Automatic detection of the correct starting value of the scaling factor works well with the gnome desktop. The present code contains no support for this on other desktops. FLTK_SCALING_FACTOR provides a workaround. -WIN32: Support is incomplete at this point, although many test applications have partial or complete HiDPI and scaling support. The current value of the system's scaling factor is correctly detected at application startup. Apps respond to changes of this value in real time. Support needs to define the FLTK_HIDPI_SUPPORT preprocessor variable at compile time. This way, standard builds produce a code with the default WIN32 HiDPI support, that is, where all graphics goes to an internal buffer that gets enlarged by the system and then mapped to the HiDPI display. To experiment with (or develop) the new HiDPI support requires a modified build procedure in which FLTK_HIDPI_SUPPORT is defined at compile time. When the support will be complete, the requirement for the definition of this preprocessor variable will be removed. The present commit contains support for a single scaling factor. Eventually, per-screen scaling factors should be implemented, as done for X11. - MacOS: this commit does not give new HiDPI for this platform. Eventually, window rescaling in reply to command/+/-/0/ is desirable. Per-screen scaling factor makes no sense on this platform because the OS itself takes care of the difference between the resolutions of traditional and retina displays. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12239 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-12-16Improve Fl_Graphics_Driver::copy_offscreen() so it accepts an Fl_Offscreen ↵Manolo Gouy
argument even if not created by fl_create_offscreen(). With this, fl_copy_offscreen() can be used with any drawing surface (e.g., PostScript) and any Fl_Offscreen argument (e.g., returned by Fl_image_Surface::offscreen()). git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12148 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-12-14Implement a platform-independent version of ↵Manolo Gouy
Fl_Graphics_Driver::copy_offscreen() usable when drawing to PostScript. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12147 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-12-12The virtual function Fl_Graphics_Driver::copy_offscreen() cannot be ↵Manolo Gouy
implemented in a platform-independent way. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12144 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-11-08MacOS: use less temporary copies of image data for image printing.Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@12086 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-11-05Slightly improve the parameter list of member function int ↵Manolo Gouy
Fl_Graphics_Driver::start_image(...) git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@12079 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-11-03Factorize repeated code across platform-specific graphics drivers and image ↵Manolo Gouy
types git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@12077 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-05-13Slightly simpler Fl_Graphics_Driver::default_driver() function.Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11732 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-04-24Add Doxygen comments for members of the Fl_Graphics_Driver class.Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11689 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-04-17virtualized some Region calls.Matthias Melcher
There is a deeper issue here: regions should be handled by the graphics driver that is associated with the Fl_Window of this widget... . git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11643 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-04-17virtualized Fl::set_color and free_color.Matthias Melcher
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11642 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-04-17virtualized Fl_Graphics_Driver::global_gc(), a function that should probably ↵Matthias Melcher
not exeist. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11641 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-04-17virtualizes fl_set_spot and fl_reset_spotMatthias Melcher
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11640 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-03-26Isolate the definition of the 3 public, OS-dependent types (Fl_Offscreen, ↵Manolo Gouy
Fl_Region, Fl_Bitmask). git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11432 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-03-10Implement non-rectangular windows using the Window Driver mechanism.Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11336 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-02-25Remove the useless pseudo run-time type information supported by the ↵Manolo Gouy
Fl_Device class. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11217 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-02-09Move ifdef's in RGB_Image into driver system.Matthias Melcher
- change image caching variable types to uintptr_t - added driver function to uncache image data - cleaning up (Xlib and GDI will likely throw syntax errors. Trying to fix ASAP) git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11138 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
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