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2018-04-05X11: Fix drawing of sliders with gtk+ scheme and GUI scaling >= 2 -- continuedManolo Gouy
Other places where line_delta_ is to be used. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12823 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-04-05X11: Fix drawing of sliders with gtk+ scheme and GUI scaling >= 2 that left ↵Manolo Gouy
footprints when moved. The fix is to use the X11 graphics driver's line_delta_ private member variable also when drawing complex shapes with fl_begin_loop(). The gtk+ scheme does use fl_begin_loop() to draw its frames. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12821 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-03-28Image classes: memorise the width and the height of the cached form of the ↵Manolo Gouy
image to support GUI scaling git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12811 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-03-22Rename Fl_Image::pixel_w() and pixel_h() to Fl_Image::data_w() and data_h().Manolo Gouy
The docs of class Fl_Image and of Fl_Image::scale() are beefed up. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12784 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-03-21X11: Remove tentative, uncompiled code to cache RGB images with Xrender ↵Manolo Gouy
Picture instead of Pixmap The speed benefit is not obvious. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12781 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-03-19New member function Fl_Image::scale(int width, int height) to set the FLTK ↵Manolo Gouy
size of an image. Each image has now two sizes implemented as follows: - the pixel size is stored in private members pixel_w_ and pixel_h_ with public accessors pixel_w() and pixel_h() - the FLTK size is stored in private members w_ and h_ and read by w() and h() - when the image is constructed, the two sizes have the same value - the protected w(int) and h(int) member functions set both FLTK and pixel sizes. - the public scale(int, int) member function is essentially nothing but set the FLTK size and don't change the pixel size. - when the image is drawn, its FLTK size determines how big it is drawn, its pixel size determines how much data are available to draw it. FLTK 1.3.4 with FL_ABI_VERSION=10304 contained an equivalent member function but only for the Fl_Shared_Image class. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12776 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-03-19Remove useless member function declaration.Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12775 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-03-15Improve X11 coordinate clipping.Albrecht Schlosser
Make clipping methods non-virtual so they can be inlined. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12753 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-03-15Fix a potential internal stack overflow in Xlib graphics driver.Albrecht Schlosser
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12752 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-03-15Remove unused #include files and FL_CFG_* conditional code.Albrecht Schlosser
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12751 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-03-13Improve and simplify X line and rect 16-bit clipping.Albrecht Schlosser
Back to 16-bit coordinate limit clipping (actually +/- (2**15 - 8). The clipping range is now constant, symmetrical, and stored in the driver object. Also fixed a bug in Liang-Barsky line clipping algorithm. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12744 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-03-10Remove useless #include statement.Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12728 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-03-10Fl_Xlib_Graphics_Driver::scale_clip: restrict the computed X11 region to the ↵Manolo Gouy
16-bit coordinate space. This member function transforms the current clip region from FLTK units to pixel units multiplying FLTK units by the current value of the scale factor to get pixel units. The current clip region has been, by construction, restricted to the 16-bit coordinate space. But these data can evade this space after multiplication by the scale factor. Thus, it's necessary to enforce the 16-bit space here which is done with Fl_Xlib_Graphics_Driver::XRectangleRegion. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12727 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-03-09Improve X11 (16-bit) clipping of lines and rectangles.Albrecht Schlosser
In FLTK 1.3.x only horizontal and vertical long lines with endpoints outside the 16-bit coordinate space could be drawn with proper X11 coordinate clipping. Now arbitrary lines are clipped so they can be drawn with X11 functions. All rectangles are clipped as well (as in 1.3). Todo: The code needs better documentation and clipping of polygons, circles, curves etc. is still missing. The next step should be the clipping of polygons... git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12725 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-03-08Fix X11 clip region outside 16-bit coordinate space.Albrecht Schlosser
This is the first commit of X11 16-bit coordinate space (clipping) fixes. More to follow... git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12722 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-02-09Replace "WIN32" with "_WIN32" or "Windows".Albrecht Schlosser
Replace compiler/preprocessor/platform macro "WIN32" with "_WIN32". Replace "WIN32" in text and documentation with "Windows". Replace "MSWindows" with "Windows". To do: README.Windows.txt (and maybe other documentation as well) needs updates. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12655 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-02-09Fix fl_read_image() under MacOS platform when GUI is rescaled.Manolo Gouy
This commit also simplifies the platform-dependent support of fl_read_image(): only Fl_XXX_Screen_Driver::read_win_rectangle() contains platform-specific code to capture pixels from the current window or from an offscreen buffer. Platform-independent function Fl_Screen_Driver::traverse_to_gl_subwindows() captures subwindows that intersect with the area fl_read_image() targets. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12653 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-02-07STR#3450: Draw text with OpenGL using textures on all platforms.Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12650 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-01-31Replace FL/x.H with FL/platform.H - step 2 (STR #3435).Albrecht Schlosser
This second step replaces FL/x.H with FL/platform.H in all source files. Dependencies have been adjusted as well. This commit completes the replacement of FL/x.H with FL/platform.H. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12641 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-01-18X11+pango: correct y position of text in line that was bad for some ↵Manolo Gouy
non-latin scripts and some pango versions. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12639 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-01-05Some cleaning in commentsManolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12621 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-12-18STR#3320 continued: make sure there's no undrawn space between nested ↵Manolo Gouy
rectangles and images. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12595 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-12-18STR#3444: Add MacOS support for application rescaling (not quite complete)Manolo Gouy
With this, most MacOS FLTK app can be scaled with command/+/-/0/ keystrokes. A scaling problem remains, visible in test/cube, where the "Test" string is not positioned correctly. GLUT apps can also be scaled (across platforms). SVG images are re-rasterized after app scaling for optimal drawing. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12594 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-08-27Fix for STR#3397: find adequate X font to use it with GL.Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12404 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-08-25Fl_Scalable_Graphics_Driver::draw(Fl_RGB_Image *,...) : change how the ↵Manolo Gouy
current scaling factor is taken into account. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12400 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-08-25X11 and WIN32: slightly change Fl_XXX_Graphics_Driver::cache(Fl_Pixmap*) to ↵Manolo Gouy
use the Fl_Image_Surface object. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12399 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-08-25X11+xft-pango: have Fl::set_fonts() show fonts with black, light, medium, ↵Manolo Gouy
demi bold, oblique styles. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12398 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-08-24X11 platform: cleaner implementation of changing the active drawing surface ↵Manolo Gouy
and maintaining clip regions. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12396 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-08-20Simplify using Fl_XXX_Graphics_Driver::copy_offscreen() instead of ↵Manolo Gouy
Fl_Scalable_Graphics_Driver::copy_offscreen_unscaled() git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12395 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-08-15Fl_XXX_Surface_Driver::set_current() : call Fl_Surface_Device::set_current() ↵Manolo Gouy
first to get fl_window right. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12383 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-08-14Remove unnecessary #include statements and compilation guards.Albrecht Schlosser
Currently src/drivers/OpenGL/Fl_OpenGL_Graphics_Driver.cxx wouldn't contribute any code to the lib, but it is kept for future extensions. This file is no longer compiled (see src/CMakeLists.txt and src/Makefile). Tested (only) under Windows and Linux. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12381 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-08-14Make 'driver' header include guards more standard.Albrecht Schlosser
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12380 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-08-13Fl_Xlib_Graphics_Driver::set_fonts() with Pango: handle case when 'Regular' ↵Manolo Gouy
is not alone in face name. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12378 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-08-13Fl_Xlib_Graphics_Driver::set_fonts() with Pango: account better for variety ↵Manolo Gouy
of possible font styles. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12377 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-08-12Fix error: invalid conversion from ‘const char*’ to ‘char*’ ↵Manolo Gouy
[-fpermissive] git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12376 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-08-12Improve Fl_Xlib_Graphics_Driver::set_fonts() when using Pango to build ↵Manolo Gouy
standard FLTK font names prefixed with I,B, or P. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12375 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-06-27Exact computation of scaled clipping region for X11 platform.Manolo Gouy
Each rectangular component of the clipping region is transformed exactly as by Fl_Xlib_Graphics_Driver::rectf_unscaled() git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12272 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
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
2017-06-06X11 platform: Accurate box graphics at wide range of scaling factor values.Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12254 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-06-01Additional check in Fl_Xlib_Graphics_Driver::font_unscaled(Fl_Font, ↵Manolo Gouy
Fl_Fontsize) to recognize if current font is unchanged. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12246 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-05-22X11 + Pango platform: improve text drawing with angle.Manolo Gouy
Make sure that text length computed without angle is equal to text length drawn with angle. This property is essential so that rotated text appears at controlled location at both ends. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12244 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-05-22Fix warnings: 'Fl_Xlib_Graphics_Driver::scale' hides overloaded virtual ↵Manolo Gouy
function [-Woverloaded-virtual] git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12242 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
2017-04-25Add an argument to the private, virtual member function void ↵Manolo Gouy
Fl_Surface_Device::end_current_(). The X11 platform uses this argument to restore the correct clipping state after drawing to an Fl_Image_Surface object. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12226 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-04-24Remove unused variable from class Fl_Xlib_Image_Surface_Driver.Albrecht Schlosser
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12225 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-04-24Undo change at r.12221 because it's done at r.12222 in a cross-platform fashion.Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12223 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-04-23Fix Fl_Image_Surface::image() as discussed in fltk.generalAlbrecht Schlosser
See thread "fl_pop_clip: clip stack underflow! warning on X11" started on Thu, 20 Apr 2017. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12221 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-04-12Fix for STR#3374: Crash with pango enabled when changing default fontManolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12218 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-04-07Fixed typo in warning message.Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12215 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-03-17Account for translation also in non-Pango code section.Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12211 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
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