This commit is the accumulated patch introduced in branch 1.3
in svn r 11094, 11095, and 11096.
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that triggers a warning when FL_PORTING is ON and with a default platform-neutral
implementation.
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and whether we are printing: virtual int Fl_Graphics_Driver::has_feature(driver_feature feature)
This is also because it is not convenient to derive a printer-specific driver with its own
implementation of virtual functions when this implementation differs only in one line of code.
2) Solved the problem of inclusion of non public header by the public header FL/Fl_Device.H:
bracket this with #if FL_LIBRARY / #endif so this non public header is included only when building
FLTK itself.
3) Removed several (but not all) of the FLTK_ABI_VERSION guards that are no longer
useful for code targeting FLTK 1.4.
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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.
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Methods Fl::event_x_pixel() and Fl::event_y_pixel() committed at r.10941
are removed. Instead method Fl_Gl_Window::pixels_per_unit() is added.
The documentation explains in more detail how to write cross-platform
FLTK code supporting high resolution OpenGL windows on retina displays.
The examples/OpenGL3test.cxx app exercises Fl_Gl_Window::pixels_per_unit().
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that allows customization of the application menu on the Mac platform.
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The -[NSWindow makeKeyAndOrderFront:] message used to make the window appear on the screen,
but, starting with 10.10 (approximately), this changed, and it became necessary to query for events
for a new window to appear on the screen. With 10.11 two event messages are needed.
The solution is therefore to implement Fl_Window::wait_for_expose().
- Calling NSDisableScreenUpdates()()/NSEnableScreenUpdates() before and after window updates
greatly accelerates multi-window update operations.
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All changes are mac-specific, except a very minor change in file src/gl_draw.cxx
where string drawing wrongly claimed to support @symbol, not possible
because symbols are drawn using non-GL primitives.
Unchanged application code can use the new FLTK code.
In addition, the new code allows mac applications to draw OpenGL scenes
at high resolution on so-called 'retina' displays, but this requires some
support from app code. They must call, before opening GL windows,
Fl::use_high_resolution(1);
and change their glViewport() calls as follows
glViewport(0, 0, pxel_w(), pixel_h());
This uses 2 new member functions of the Fl_Gl_Window class,
pixel_w() and pixel_h() returning the window dimensions in pixel
units, that is, twice the w() and h() when the window is mapped
on a retina display.
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With true subwindows, several members of Fl_X became useless.
This change recycle two of them for new uses:
- Fl_Region subRegion is used as a pointer to a CGRect
- Fl_X *xidChildren is used to indicate the resolution of the display
containing a window
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The new field bool Fl_X::mapped_to_retina is updated when needed, that is, when the window is moved.
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On such displays, one drawing unit equals two pixels.
The fl_xyline() and fl_yxline() functions are modified to perform
extra operations when drawing to a window on a retina display.
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Before, the fl_find(Window) function was not accessible from .mm source files.
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window is just another window with Mac OS as it was already with MSWindows and X11.
This requires Mac OS X 10.2. Window nesting to any depth is possible.
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With this, no public FLTK header includes system header files anymore on the mac.
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Also change our fallback cursors to use this method, so that fallback
cursors are handled in a platform independent manner. STR #2660.
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Added Fl_Image_Surface class to draw into an Fl_Image object.
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Some code is transferred from Fl_cocoa.mm thus reducing somewhat this very large source file.
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some key opens a window with possible accented characters. This feature is used by the Fl_Input_ and
Fl_Text_Editor widgets. User-defined text input widgets can optionally use this feature, but the default
behavior is to not use it. Fl_Secret_Input turns it off, for example.
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