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"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
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These new features can be used by widgets that draw inside a rectangle
taking the border width into account.
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Selecting a text range programmatically would not sync
some variables with the actual selection. This also fixes
a crash bug in macOS when dragging text that was
selected by buffer()->select() only.
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Implement Fl_Scroll::on_move()
Fix indexing in Fl_Group::on_move()
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The prototype of the public Fl_SVG_Image constructor is expanded
to allow construction from in-memory, gzip'ed binary data.
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While adding the docs, noticed some things that need modification
for proper public use. These are highlighted as \todo items and
\warning items, which will be fixed in a separate commit forthcoming. -erco
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Started with @wcout's patch (see Issue #153, STR 3290), modified
patch for CMP conformance, restructured methods, and finally:
- used Fl_Int_Vector instead of 'fl_data_container'
- removed fl_data_container
Thanks for the working patch to @wcout.
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Replace local IntVector with Fl_Int_Vector
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Code copied from Fl_Table and reformatted.
Thanks to Greg for the original code.
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Both bugs can happen if a widget doesn't have an associated window()
or in similar situations. These fixes returns NULL to prevent crashes.
Bugs observed in special test scenarios, not real-life programs.
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This fixes the scrollbar order when children are inserted rather than
at some indefinite time later, for instance in draw().
This commit will very likely make Fl_Scroll::fix_scrollbar_order()
obsolete but this method is kept as is for tests and verification.
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If the resizable() of an Fl_Group is deleted it is automatically
removed from the group.
New: to avoid dangling resizable() pointers the resizable widget
is set to the group itself.
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This modification as per small thread on fltk.coredev:
Sep 19, 2022, Subject: Addition to Fl_Group docs
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Some functions didn't document the handling of arguments properly,
particularly Fl::has_timeout() and Fl::remove_timeout().
This is now fixed by documenting the correct behavior that was
preserved (re-implemented) from FLTK 1.3.x in the new class Fl_Timeout.
Unfortunately there have been some inconsistencies (likely unexpected
behavior) which have been preserved and which are now documented.
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Doxygen uses a <div> with center alignment for images, hence
adding HTML center alignment for image is not only superfluous
but was also inconsistent.
Also removed some more unnecessary HTML tags, updated copyright year.
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Also, add missing doc for methods Fl_XXX_Window::show(int, char**).
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This commit allows to switch between FL_DOUBLE / FL_SINGLE modes
in widget-containing GL3 windows.
Demo program examples/OpenGL3test is modified to show FLTK widgets
even if the platform does not support OpenGL 3.
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Also, the application-level code to add widgets to a GL3 window becomes
platform-independent.
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Under non-macOS platforms, the key is to call glUseProgram(0); after having used OpenGL 3
which allows to then use OpenGL 1 and draw FLTK widgets over the OpenGL3 scene.
Under macOS, this is impossible because macOS GL3 contexts are not compatible
with GL1. The solution implemented here is to create an additional Fl_Gl_Window
placed above and sized as the GL3-based window, to give it a non opaque,
GL1-based context, and to put the FLTK widgets in that additional window.
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Function fl_read_image() obliges to keep a minimal use of global variable fl_window
also under the Wayland platform, even if its type (Window) makes little sense for
the hybrid library because it has its X11 value (given by X11/X.h) which is not
meaningful for the Wayland leg of the hybrid platform.
Virtual member function Fl_Surface_Device::as_image_surface() becomes useless.
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1) add Wayland code that prevent subwindows from leaking outside their parent.
This does not cover GL subwindows.
2) add macOS code that prevent GL subwindows from leaking outside their parent.
This fixes issue #494 for the macOS platform.
N.B.: Wayland GL subwindows are not prevented from leaking because no solution
that would not require any change in client applications was found. Code that
would cover Wayland GL subwindows but would require client applications to always
use the FL_ALPHA flag is included in this commit in commented out form.
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No "real" code changes, but dependencies can affect building.
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Conflicting demands arise in the implementation of class Fl_Xlib_Graphics_Driver
for drawing images with the XRender library :
1) Issue #163 leads to use a bilinear filter to draw-and-scale images.
2) This tends to blur the edges of drawn areas which is bad for tiled images
(that is because the edges get alpha values, even for an opaque source image).
This commit resolves the conflict adding a means to detect whether the library
is busy drawing a tiled image. If so, the bilinear filter is not applied, drawn areas
don't have blurred edges, resulting in a nice tiling.
With this commit, these test apps perform correctly:
- tiled_image is correct at all scaling factor values also when modified
to use a depth-3 or a depth-4 Fl_RGB_Image as tile;
- unittests - Drawing Images is correct at all scaling factor values;
- pixmap_browser scales correctly up and down JPEG and PNG images.
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