diff options
Diffstat (limited to 'cairo/Fl_Cairo.cxx')
| -rw-r--r-- | cairo/Fl_Cairo.cxx | 60 |
1 files changed, 27 insertions, 33 deletions
diff --git a/cairo/Fl_Cairo.cxx b/cairo/Fl_Cairo.cxx index de70d33df..28c0079f1 100644 --- a/cairo/Fl_Cairo.cxx +++ b/cairo/Fl_Cairo.cxx @@ -1,6 +1,4 @@ // -// "$Id$" -// // Main header file for the Fast Light Tool Kit (FLTK). // // Copyright 1998-2018 by Bill Spitzak and others. @@ -9,11 +7,11 @@ // the file "COPYING" which should have been included with this file. If this // file is missing or damaged, see the license at: // -// http://www.fltk.org/COPYING.php +// https://www.fltk.org/COPYING.php // -// Please report all bugs and problems on the following page: +// Please see the following page on how to report bugs and issues: // -// http://www.fltk.org/str.php +// https://www.fltk.org/bugs.php // #include <config.h> @@ -37,7 +35,7 @@ #endif // static Fl module initialization : -Fl_Cairo_State Fl::cairo_state_; ///< contains all necessary info for current cairo context mapping +Fl_Cairo_State Fl::cairo_state_; ///< contains all necessary info for current cairo context mapping // Fl cairo features implementation @@ -49,11 +47,11 @@ void Fl_Cairo_State::autolink(bool b) { autolink_ = b; #else Fl::fatal("In Fl::autolink(bool) : Cairo autolink() feature is only " - "available with the enable-cairoext configure option, now quitting."); + "available with the enable-cairoext configure option, now quitting."); #endif } -/** +/** Provides a corresponding cairo context for window \a wi. This is needed in a draw() override if Fl::cairo_autolink_context() returns false, which is the default. @@ -71,16 +69,16 @@ void Fl_Cairo_State::autolink(bool b) { */ cairo_t * Fl::cairo_make_current(Fl_Window* wi) { if (!wi) return NULL; // Precondition - + if (fl_gc==0) { // means remove current cc - Fl::cairo_cc(0); // destroy any previous cc - cairo_state_.window(0); - return 0; + Fl::cairo_cc(0); // destroy any previous cc + cairo_state_.window(0); + return 0; } // don't re-create a context if it's the same gc/window couple if (fl_gc==Fl::cairo_state_.gc() && fl_xid(wi) == (Window) Fl::cairo_state_.window()) - return Fl::cairo_cc(); + return Fl::cairo_cc(); cairo_state_.window(wi); @@ -100,7 +98,7 @@ cairo_t * Fl::cairo_make_current(Fl_Window* wi) { return cairo_ctxt; } -/* +/* Creates transparently a cairo_surface_t object. gc is an HDC context in Windows, a CGContext* in Quartz, and a display on X11 (not used on this platform) @@ -118,7 +116,7 @@ static cairo_surface_t * cairo_create_surface(void * gc, int W, int H) { # endif } -/** +/** Creates a cairo context from a \a gc only, gets its window size or offscreen size if fl_window is null. \note Only available when configure has the --enable-cairo option @@ -129,7 +127,7 @@ cairo_t * Fl::cairo_make_current(void *gc) { //FIXME X11 get W,H // gc will be the window handle here # warning FIXME get W,H for cairo_make_current(void*) -#elif defined(__APPLE_QUARTZ__) +#elif defined(__APPLE_QUARTZ__) if (fl_window) { W = Fl_Window::current()->w(); H = Fl_Window::current()->h(); @@ -144,14 +142,14 @@ cairo_t * Fl::cairo_make_current(void *gc) { # error Cairo is not supported on this platform. #endif if (!gc) { - Fl::cairo_cc(0); - cairo_state_.gc(0); // keep track for next time - return 0; + Fl::cairo_cc(0); + cairo_state_.gc(0); // keep track for next time + return 0; } - if (gc==Fl::cairo_state_.gc() && - fl_window== (Window) Fl::cairo_state_.window() && - cairo_state_.cc()!=0) - return Fl::cairo_cc(); + if (gc==Fl::cairo_state_.gc() && + fl_window== (Window) Fl::cairo_state_.window() && + cairo_state_.cc()!=0) + return Fl::cairo_cc(); cairo_state_.gc(fl_gc); // keep track for next time cairo_surface_t * s = cairo_create_surface(gc, W, H); cairo_t * c = cairo_create(s); @@ -160,15 +158,15 @@ cairo_t * Fl::cairo_make_current(void *gc) { return c; } -/** - Creates a cairo context from a \a gc and its size +/** + Creates a cairo context from a \a gc and its size \note Only available when configure has the --enable-cairo option */ cairo_t * Fl::cairo_make_current(void *gc, int W, int H) { - if (gc==Fl::cairo_state_.gc() && - fl_window== (Window) Fl::cairo_state_.window() && - cairo_state_.cc()!=0) // no need to create a cc, just return that one - return cairo_state_.cc(); + if (gc==Fl::cairo_state_.gc() && + fl_window== (Window) Fl::cairo_state_.window() && + cairo_state_.cc()!=0) // no need to create a cc, just return that one + return cairo_state_.cc(); // we need to (re-)create a fresh cc ... cairo_state_.gc(gc); // keep track for next time @@ -183,7 +181,3 @@ cairo_t * Fl::cairo_make_current(void *gc, int W, int H) { #include <FL/Fl_Export.H> FL_EXPORT int fltk_cairo_dummy() { return 1;} #endif // FLTK_HAVE_CAIRO - -// -// End of "$Id$" . -// |