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Add forgotten parameter docs and some minor code fixes.
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This commit makes the local, static drawing functions in the source
file available for subclasses by converting them to static protected
methods as requested by STR 2022.
The source and header files have been reformatted according to the
CMP, documentation for the new protected methods was added.
Source code *functionality* has not been changed.
This resolves and closes STR 2022.
Todo:
- investigate whether these drawing methods wouldn't better be
member functions and "convert" them if applicable
- investigate whether the internal struct FL_CHART_ENTRY could become
a local part of the Fl_Chart class, maybe Fl_Chart::Entry.
- rename private member variables with trailing underscore (see CMP)
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The new name reflects better the role of this bool member variable.
Also, add explanatory comments about the use of this variable.
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Helper function convert_crlf() from file fl_wayland_clipboard_dnd.cxx has been
repaired by commit a4b33f8 (13 jan 2023). But the same function was also in
file Fl_cocoa.mm. This commit moves the repaired code to class Fl_Screen_Driver
and has both fl_wayland_clipboard_dnd.cxx and Fl_cocoa.mm use it.
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src/drivers/Cairo/Fl_Cairo_Graphics_Driver.cxx:
- fix font_name_process() out of bounds memory access
- unify/align font_name_process() code (see also Xlib/xft)
- fix font name string allocation
src/drivers/Xlib/Fl_Xlib_Graphics_Driver_font_xft.cxx
- unify/align font_name_process() code (see also Cairo_Graphics)
- fix font name string allocation
Todo: move common code to Fl_Graphics_Driver or another common file.
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Error was reported by Address Sanitizer (ASAN) when picking a file.
Platform: Unix/Linux.
==1734703==ERROR: AddressSanitizer: alloc-dealloc-mismatch (malloc vs operator delete []) on 0x607000108420
#0 0x7f3357d846ef in operator delete[](void*) ../../../../src/libsanitizer/asan/asan_new_delete.cc:168
#1 0x4e195f in Fl_Native_File_Chooser_Driver::strfree(char*) ../../src/Fl_Native_File_Chooser.cxx:262
...
0x607000108420 is located 0 bytes inside of 66-byte region [0x607000108420,0x607000108462)
allocated by thread T0 here:
#0 0x7f3357d0a3ed in __interceptor_strdup ../../../../src/libsanitizer/asan/asan_interceptors.cc:445
#1 0x57951a in Fl_Kdialog_Native_File_Chooser_Driver::filter(char const*) ../../src/Fl_Native_File_Chooser_Kdialog.cxx:245
#2 0x4e14a0 in Fl_Native_File_Chooser::filter(char const*) ../../src/Fl_Native_File_Chooser.cxx:176
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- replace strchr() with memchr() because buffer is not nul-terminated
- fix '*(p+1)' potentially accessing memory out of bounds
This fix also prevents
- multiple memmove() calls
- multiple searches from the beginning of the string
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- add newline (\n) before string output
- remove quotes (')
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This widget offers the selection of all known FLTK schemes as a simple
widget based on Fl_Choice.
Some test and demo programs use Fl_Scheme_Choice to enable the developer
or user to switch schemes quickly for comparison.
Todo:
- add features to add new schemes during runtime (partially done)
- update status when the scheme is changed by Fl::scheme("...")
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This basic version of class Fl_Scheme contains only static methods that
are needed for Fl_Scheme_Choice and further extensions.
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This is in fact a regression introduced at commit be0f06e.
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Tall menus now work also as single popup window and show the correct selected item.
Groups of popups with a menutitle, an associated menuwindow, and possibly submenus
are constructed around the menuwindow, the menutitle being a child popup of the
menuwindow. This positions these popup groups better than before.
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FLUID dnd for desktop images into the design
Documentation for fl_access
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Many thanks to @wcout for providing this fix.
Xrender now draws images in the same way when tiling images
or not when FL_RGB_SCALING_BILINEAR is on.
This allows to remove static bool Fl_Tiled_Image::drawing_tiled_image()
which becomes unused.
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The new method Fl::selection_to_clipboard(int) enables copying
selection data to the clipboard on X11 if it is set to 1.
This feature was requested by STR 3229 and the implementation was
inspired by an `xterm` feature named "Select to Clipboard" which can
be enabled by 'ctrl + middle mouse button + "Select to Clipboard"'
in an xterm window.
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Add close buttons for Fl_Tabs
Introducing callback reasons
FLUID shows all FL_WHEN_... options
Adding Fl_Tabs overflow types
Improved test/tabs to show new features
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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.
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This commit has Fl_Cairo_Graphics_Driver compute string widths in 2 ways:
1) when the string contains several unicode characters, the width of the
whole string is computed, accounting for kerning when it occurs;
2) when the string contains a single unicode character, its width is
computed, memorised, and re-used next time it's necessary.
The effect of this approach is
- Fl_Text_Display is fast because it uses memorised single character widths repeatedly
- Fl_Input is drawn accurately because the cursor position is determined
by string widths, not by sums of character widths.
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