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Begin documenting the Wayland platform, new in FLTK version 1.4

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ManoloFLTK
2022-03-10 15:05:26 +01:00
parent 9e4c7aa77c
commit 9d869d73c1
8 changed files with 131 additions and 10 deletions
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FL/Fl_PostScript.H
+2 -2
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@@ -40,14 +40,14 @@ class Fl_PostScript_Graphics_Driver;
This class is used exactly as the Fl_Printer class except for the begin_job() call,
two variants of which are usable and allow to specify what page format and layout are desired.
<b>Processing of text</b>: Text uses vectorial fonts under the X11 + pango platform.
<b>Processing of text</b>: Text uses vectorial fonts under the X11 + Pango and the Wayland platforms.
With other platforms, only text restricted to the Latin alphabet (and a few other characters
listed in the table below) and to FLTK standard fonts is vectorized. All other unicode characters
or all other fonts (FL_FREE_FONT and above) are output as a bitmap.
FLTK standard fonts are output using the corresponding PostScript standard fonts.
The latin alphabet means all unicode characters between U+0020 and U+017F, or, in other words,
the ASCII, Latin-1 Supplement and Latin Extended-A charts.
<br><b>Processing of transparent Fl_RGB_Image objects</b>: Under the X11 + pango platform,
<br><b>Processing of transparent Fl_RGB_Image objects</b>: Under the X11 + Pango and the Wayland platforms,
these objects are output with their exact transparency. With other platforms, these objects
are drawn blended to white color. Class Fl_EPS_File_Surface 's constructor allows to set another
background color for blending.
FL/Fl_Printer.H
+7 -4
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@@ -59,13 +59,16 @@
\endcode
<b>Platform specifics</b>
<ul>
<li>X11 platforms:
<li>X11 and Wayland platforms:
<ul><li>FLTK expresses all graphics data using (Level 2) PostScript and sends that to the selected printer.
See class Fl_PostScript_File_Device for a description of how text and transparent images appear in print.
<li>If the GTK library is available at run-time, class Fl_Print runs GTK's printer dialog which allows to set
<li>If the GTK library is available at run-time, class Fl_Printer runs GTK's printer dialog which allows to set
printer, paper size and orientation.
<li>If that library is not avaialble, or if Fl::option(Fl::OPTION_PRINTER_USES_GTK) has been turned off,
class Fl_Print runs FLTK's print dialog.
<li>Under the KDE desktop, Fl_Printer runs the <tt>kdialog</tt> command to create KDE-styled file dialogs if
that command is available at run-time, unless FLTK was built with CMake and option OPTION_USE_KDIALOG turned off.
In that case, Fl_Printer attempts to run the GTK dialog.
<li>If the GTK library is not available, or if Fl::option(Fl::OPTION_PRINTER_USES_GTK) has been turned off,
class Fl_Printer runs FLTK's print dialog.
<ul>
<li>Unless it has been previously changed, the default paper size is A4.
To change that, press the "Properties" button of the "Print" dialog window
FL/wayland.H
+3
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@@ -29,3 +29,6 @@ struct flWaylandRegion {
#include <stdint.h>
extern FL_EXPORT uint32_t fl_event_time;
extern FL_EXPORT struct wl_surface *fl_wl_surface(Window xid);
extern FL_EXPORT struct _cairo *fl_wl_cairo();