This method can be used to draw small circles as part of the GUI.
It is independent of the current scheme.
Very small circles are approximated by drawing several rectangles.
"Arrows" in widgets are those GUI elements mostly represented by
triangles pointing in a particular direction as in scrollbars,
choice widgets, some menus, valuators and Fl_Counter widgets.
The code has been simplified and standardized such that all these
GUI elements are drawn identically per FLTK scheme.
Widget authors no longer need to write code to calculate arrow sizes
and draw polygons etc.
Different schemes can and do implement different drawing functions.
Todo: see comments "FIXME_ARROW" in src/Fl_Menu_Button.cxx and
src/Fl_Menu.cxx
Add new method
Fl_Widget::draw_focus(Fl_Boxtype t, int x, int y, int w, int h, Fl_Color bg)
... with background color for correct contrast testing (in Fl_Tabs)
Draw the focus box of the "tabs" of Fl_Tabs widgets with the correct
boxtype and background color.
Make 'unsigned int visible_focus()' const so it can be used in 'const'
methods.
Do not draw the focus box if the per-widget focus box option is off.
FLTK 1.3 supports complex text input methods (TIMs) for the 3 platforms
(X11, Windows, macOS). This support has an interface with FLTK that is
common for X11 and Windows, via (undocumented) functions fl_set_spot(),
fl_set_status() and fl_reset_spot().
In contrast, and because it's been developed independently, the
interface between the macOS TIM and FLTK 1.3 is completely different :
static functions FL::insertion_point_location() and Fl::reset_marked_text().
The present change implements a single TIM/FLTK interface
used by all platforms based on functions fl_set_spot() and
fl_reset_spot().
The previous macOS-specific functions FL::insertion_point_location() and
Fl::reset_marked_text() are maintained only for compatibility with 1.3
and deprecated.
- remove obsolete svn '$Id$' tags from all source files
- update .fl files and generated files accordingly
- replace 'http://www.fltk.org' URL's with 'https://...'
- replace bug report URL 'str.php' with 'bugs.php'
- remove trailing whitespace
- fix other whitespace errors flagged by Git
- add and/or fix missing or wrong standard headers
- convert tabs to spaces in all source files
The only relevant code changes are in the fluid/ folder where
some .fl files and other source files were used to generate
the '$Id' headers and footers.
According to the documentation fl_font(face, size) may be called
"outside a draw context if necessary to call fl_width()".
This worked in 1.3.5 but did not in 1.4 (so far). I reworded the
docs to make clear that other measurement functions can be called
as well and refactored the code to make sure that fl_font(face, size)
will open the display if necessary.
Clarify functionality of fl_not_clipped() and fl_clip_box().
Add developer documentation for Fl_Graphics_Driver::clip_box().
Documentation only, no code changes in this commit.
In the context of HighDPI screens, the API of function fl_read_image()
is inadequate because a rectangle of size WxH drawing units
of a window may contain many more than W*H pixels.
Function fl_capture_window_part() returns an Fl_RGB_Image
object whose drawing size matches the size of the rectangle
and whose data size matches the, possibly larger, size in pixels
of the corresponding area of the mapped window.
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
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
The warning is issued to stderr only once (previously: every time rotated
text was used).
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11978 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
Files fl_read_image_mac.cxx and fl_read_image_win32.cxx are no longer used;
their content is now in Fl_XXX_Screen_Driver.cxx
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11516 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
These functions become therefore platform-independent.
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11241 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
- 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
Focus rectangles are dotted lines. The default implementation uses the dotted line style, However, for systems without line stye, we draw many dots instead.
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11110 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
Also change our fallback cursors to use this method, so that fallback
cursors are handled in a platform independent manner. STR #2660.
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10196 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
o Added fl_text_extents() to the 'Drawing things in FLTK' section
o Added 'see also' sections to all the text measuring functions in that section
o Added detail to fl_text_extents() docs regarding it not handling FLTK symbols,
as non-public comment for that method indicates.
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@9463 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
Matthias Melcher