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2017-05-18Add void fl_scale_offscreen(Fl_Offscreen &ctx) to support the rescaling of ↵Manolo Gouy
an offscreen buffer. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12240 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
2017-04-24Slight improvement of Fl_Image_Surface::image()Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12224 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-04-24Allow the use of Fl_Image_Surface::image() also when the Fl_Image_Surface ↵Manolo Gouy
object is not the current drawing surface. This fixes an issue uncovered in a thread of fltk.general entitled fl_pop_clip: clip stack underflow! warning on X11 git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12222 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
2016-12-09Doxygen: more detailed descriptions of Fl_Image_Surface::offscreen() and ↵Manolo Gouy
Fl_Image_Surface::get_offscreen_before_delete(). git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12142 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-12-07Add static void Fl_Surface_Device::push_current(Fl_Surface_Device ↵Manolo Gouy
*new_current) and pop_current() to set/unset the current drawing surface. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12140 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-11-30Remove Fl_Image_Surface::end_current() to be called after usage of the ↵Manolo Gouy
drawing surface. This ensures API compatibility with FLTK 1.3 where Fl_Surface_Device->set_current() is used to change the current drawing surface. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12125 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-05-22Fix compiler warnings.Albrecht Schlosser
FL/platform_types.h: C++ style comments are not allowed in ISO C90. src/Fl_Help_View.cxx: type qualifiers ignored on function return type. src/Fl_Image_Surface.cxx: (Linux) converting to non-pointer type ‘long unsigned int’ from NULL [-Wconversion-null] Line #70: In member function ‘Fl_Offscreen Fl_Image_Surface::offscreen()’ git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11748 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-04-27Add test to avoid null pointer crashes.Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11704 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-04-27Add tests to avoid null pointer errorsManolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11703 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
2016-04-16Modify the FL_PORTING pragma message to make clear implementation is optional.Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11627 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-03-19(hopefully) Final driver-based rewriting of the Fl_Image_Surface class.Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11371 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-03-10Remove redundant recursion (as suggested in [fltk.coredev] [porting] Remove ↵Manolo Gouy
redundant recursion) git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11335 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-03-07Fix PicoSDL.Matthias Melcher
Fixed some issues with Image_Surface and Copy_Surface for PicoSDL. Still have to virtualize the driver concept. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11307 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-03-06New, driver-based Fl_Double_Window implementation.Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11303 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-03-05Remove warning message about signed/unsigned comparison.Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11290 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-03-05Complete the platform-neutral implementation of fl_XXX_offscreen() functions.Manolo Gouy
It is necessary to have a stack of the fl_begin_offscreen() calls, so that nested such calls apply fl_end_offscreen() to the matching fl_begin_offscreen(). git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11289 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-03-04Complete driver-based implementation of Fl_Image_Surface.Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11283 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-03-03Simpler implementation of Fl_Image_Surface.Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11278 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-03-03A hopefully clearer implementation of the fl_XXX_offscreen() functions.Manolo Gouy
The Xlib driver is tricky because it uses two kinds of offscreen buffers. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11277 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-03-03Use more expressive variable names.Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11275 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-03-02Rewrite Fl_Image_Surface with full separation of public API and ↵Manolo Gouy
platform-specific implementation. File Fl_Image_Surface.cxx still needs to be cut in several platform-specific files. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11273 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-03-02Add support for SDL as a base library on OS X.Matthias Melcher
This commit adds the basic setup in CMake to allow SDL as a base library for FLTK on OS X (and probably for other platforms as well). The SDL library driver set is derived from yet another new driver set named 'Pico'. 'Pico' is a base class for a driver that will allow porting of FLTK with the tinyest amount of effort. This implementation of the SDL driver shall be documented very well to explain the porting process. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11262 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-03-01Correct the headers included by FL/Fl_Copy_Surface.H, following the new ↵Manolo Gouy
implementation of this class. This change requires other changes in header inclusions by class Fl_Image_Surface. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11258 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-02-28Remove "passing NULL to non-pointer argument" warning.Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11249 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-02-27Remove signed/unsigned comparison warning.Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11242 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-02-27Rewrite all fl_XXX_offscreen() functions so they use an Fl_Image_Surface object.Manolo Gouy
These functions become therefore platform-independent. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11241 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-02-26Rename all remaining src/drivers/XXX.h to XXX.HManolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11226 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-02-26Create class Fl_Widget_Surface that supports draw(Fl_Widget *, int, int).Manolo Gouy
This simplifies the implementation of Fl_Copy_Surface and Fl_Image_Surface which now are made to derive from Fl_Widget_Surface. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11220 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
2016-02-19Rename Fl_Graphics_Driver::set_gc(void*) to gc(void*) and ↵Manolo Gouy
Fl_Graphics_Driver::get_gc() to gc(). git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11191 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-02-18Remove all uses of the fl_gc global variable. Towards a clean driver model.Manolo Gouy
fl_gc remains usable by the application as a hook into the system. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11189 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-02-13Details on PORTME items. Move fl_parse_color() to screen drivers.Matthias Melcher
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11163 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-02-13Simpler code to support drawing to high-resolution Fl_Image_Surface object.Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11162 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-02-12Fl_Window::capture_titlebar_and_borders() returns a double-resolution top image.Manolo Gouy
Also, Fl_Image_Surface now can draw a scaled Fl_Shared_Image to a double-resolution surface. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11160 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-02-12Add Fl_Shared_Image *Fl_Image_Surface::highres_image() to draw into ↵Manolo Gouy
high-resolution bitmap. This new member function returns a high resolution bitmap image scaled to the adequate drawing size. This allows to create a bitmap image able to fill all pixels of a high resolution display. This is functional only for the Mac OS platform. On other platforms, the new member function returns an unscaled bitmap. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11158 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-02-11Mark places that need to be refactored with // PORTME:Matthias Melcher
Searching for __APPLE, WIN32 or X11 did give me many false results. I instead marked most ifdef's that I would like to get rid of with the text // PORTME:, so they can be easily found by a global search. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11155 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-02-02Set depth of image returned by Fl_Image_Surface::image() back to 3 on Mac OS X.Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11119 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-01-31Fix compiler warnings (STR 2988), porting from branch-1.3.Albrecht Schlosser
This commit is the accumulated patch introduced in branch 1.3 in svn r 11094, 11095, and 11096. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11097 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-01-27Removed all references to Quartz driver files from library headers in Xcode. ↵Matthias Melcher
Works in Xcode. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11065 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-01-18Replaced static initializer with Fl_OpenGL_Display_Device.Matthias Melcher
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11008 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-01-101) Replicate in branch-1.3-porting all recent changes of branch-1.3Manolo Gouy
2) Advance branch-1.3-porting with new function Fl_X::capture_titlebar_and_borders() that contains all the platform-specific code of all operations related to drawing window borders and title bars. What is platform-specific and what is not is therefore much clearer, to ease porting. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11002 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-01-04Created pseudo code for all FL_PORTED section so that FLTK compiles and ↵Matthias Melcher
links (Xcode, hello, other C flags: -D FL_PORTING -U __APPLE__ -U __APPLE_QUARTZ__) git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@10993 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-01-03Updated platform specific #if's to report unimplemented code when compiling ↵Matthias Melcher
with FL_PORTING defined and WIN32 and __APPLE__ undefined> git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@10989 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2015-09-24X11: fix crash when creating an Fl_Image_Surface object before ↵Manolo Gouy
fl_open_display() but after Fl::visual(). git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10866 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2015-09-23Mac OS: fixed the Fl_Image_Surface class that produced flipped images when Manolo Gouy
the app draws directly to it, without using Fl_Image_Surface::draw(Fl_Widget*, int, int). git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10865 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2015-09-23Mac OS: slightly simpler code for Fl_Image_Surface class. Manolo Gouy
The new code does not call fl_begin_offscreen() in set_current(). That is safer because there is not always a matching fl_end_offscreen(). git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10864 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2014-06-18Sets the return type of Fl_Image_Surface::image() to its real value, ↵Manolo Gouy
Fl_RGB_Image. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10200 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
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