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Add Fl_PostScript_File_Device::set_current() and end_current() members.

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ManoloFLTK
2022-07-24 08:46:52 +02:00
parent 2cedae1ece
commit cd60ea17b0
2 changed files with 32 additions and 12 deletions
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FL/Fl_PostScript.H
+6
View File
@@ -71,6 +71,10 @@ class Fl_PostScript_Graphics_Driver;
*/ */
class FL_EXPORT Fl_PostScript_File_Device : public Fl_Paged_Device { class FL_EXPORT Fl_PostScript_File_Device : public Fl_Paged_Device {
private:
// memorize the display's current font to restore it when the object ceases being current
Fl_Font display_font_;
Fl_Fontsize display_size_;
protected: protected:
/** /**
\brief Returns the PostScript driver of this drawing surface. \brief Returns the PostScript driver of this drawing surface.
@@ -139,6 +143,8 @@ public:
FILE *file(); FILE *file();
/** Sets the function end_job() calls to close the file() */ /** Sets the function end_job() calls to close the file() */
void close_command(Fl_PostScript_Close_Command cmd); void close_command(Fl_PostScript_Close_Command cmd);
virtual void set_current();
virtual void end_current();
}; };
/** Encapsulated PostScript drawing surface. /** Encapsulated PostScript drawing surface.
src/drivers/PostScript/Fl_PostScript.cxx
+26 -12
View File
@@ -91,6 +91,21 @@ Fl_PostScript_File_Device::~Fl_PostScript_File_Device() {
if (ps) delete ps; if (ps) delete ps;
} }
void Fl_PostScript_File_Device::set_current() {
Fl_Graphics_Driver& driver = Fl_Graphics_Driver::default_driver();
display_font_ = driver.font();
display_size_ = driver.size();
Fl_Paged_Device::set_current();
}
void Fl_PostScript_File_Device::end_current() {
if (display_font_ >= 0 && display_size_ > 0) {
Fl_Graphics_Driver& driver = Fl_Graphics_Driver::default_driver();
driver.font(display_font_, display_size_);
}
Fl_Paged_Device::end_current();
}
/** /**
\cond DriverDev \cond DriverDev
\addtogroup DriverDeveloper \addtogroup DriverDeveloper
@@ -1451,16 +1466,14 @@ static cairo_status_t write_to_cairo_stream(FILE *output, unsigned char *data, u
return (l == length ? CAIRO_STATUS_SUCCESS : CAIRO_STATUS_WRITE_ERROR); return (l == length ? CAIRO_STATUS_SUCCESS : CAIRO_STATUS_WRITE_ERROR);
} }
static int init_cairo_postscript(FILE* output, cairo_t* &cairo_, static cairo_t* init_cairo_postscript(FILE* output, int w, int h) {
Fl_Cairo_Graphics_Driver *driver, cairo_surface_t* cs = cairo_ps_surface_create_for_stream(
int w, int h) { (cairo_write_func_t)write_to_cairo_stream, output, w, h);
cairo_surface_t* cs = cairo_ps_surface_create_for_stream((cairo_write_func_t)write_to_cairo_stream, output, w, h); if (cairo_surface_status(cs) != CAIRO_STATUS_SUCCESS) return NULL;
if (cairo_surface_status(cs) != CAIRO_STATUS_SUCCESS) return 1;
cairo_ps_surface_restrict_to_level(cs, CAIRO_PS_LEVEL_2); cairo_ps_surface_restrict_to_level(cs, CAIRO_PS_LEVEL_2);
cairo_ = cairo_create(cs); cairo_t* cairo_ = cairo_create(cs);
cairo_surface_destroy(cs); cairo_surface_destroy(cs);
driver->Fl_Cairo_Graphics_Driver::font(0, 0); // to create the PangoLayout return cairo_;
return 0;
} }
int Fl_PostScript_Graphics_Driver::start_postscript(int pagecount, int Fl_PostScript_Graphics_Driver::start_postscript(int pagecount,
@@ -1483,8 +1496,9 @@ int Fl_PostScript_Graphics_Driver::start_postscript(int pagecount,
pw_ = Fl_Paged_Device::page_formats[format].width; pw_ = Fl_Paged_Device::page_formats[format].width;
ph_ = Fl_Paged_Device::page_formats[format].height; ph_ = Fl_Paged_Device::page_formats[format].height;
} }
if (init_cairo_postscript(output, cairo_, this, cairo_ = init_cairo_postscript(output, Fl_Paged_Device::page_formats[format].width,
Fl_Paged_Device::page_formats[format].width, Fl_Paged_Device::page_formats[format].height)) return 1; Fl_Paged_Device::page_formats[format].height);
if (!cairo_) return 1;
nPages=0; nPages=0;
char feature[250]; char feature[250];
sprintf(feature, "%%%%BeginFeature: *PageSize %s\n<</PageSize[%d %d]>>setpagedevice\n%%%%EndFeature", sprintf(feature, "%%%%BeginFeature: *PageSize %s\n<</PageSize[%d %d]>>setpagedevice\n%%%%EndFeature",
@@ -1496,8 +1510,8 @@ int Fl_PostScript_Graphics_Driver::start_postscript(int pagecount,
int Fl_PostScript_Graphics_Driver::start_eps(int width, int height) { int Fl_PostScript_Graphics_Driver::start_eps(int width, int height) {
pw_ = width; pw_ = width;
ph_ = height; ph_ = height;
if (init_cairo_postscript(output, cairo_, this, cairo_ = init_cairo_postscript(output, width, height);
width, height)) return 1; if (!cairo_) return 1;
cairo_ps_surface_set_eps(cairo_get_target(cairo_), true); cairo_ps_surface_set_eps(cairo_get_target(cairo_), true);
nPages=0; //useful? nPages=0; //useful?
return 0; return 0;