X Rendering

Pango Reference Manual
<<< Previous Page	Home	Up

Details

PANGO_RENDER_TYPE_X

#define PANGO_RENDER_TYPE_X "PangoRenderX"

PANGO_RENDER_TYPE_X is a string constant that is used to identify shaping modules for the X Window System.

pango_x_get_context ()

PangoContext* pango_x_get_context           (Display *display);

Retrieves a PangoContext appropriate for rendering with X fonts on the given display.

`display` :	an X display (As returned by XOpenDisplay().)
Returns :	the new PangoContext

pango_x_context_set_funcs ()

void        pango_x_context_set_funcs       (PangoContext *context,
                                             PangoGetGCFunc get_gc_func,
                                             PangoFreeGCFunc free_gc_func);

Sets the functions that will be used to get GC's in various colors when rendering layouts with this context.

`context` :	a PangoContext.
`get_gc_func` :	function called to create a new GC for a given color.
`free_gc_func` :	function called to free a GC created with `get_gc_func`.

PangoGetGCFunc ()

GC          (*PangoGetGCFunc)               (PangoContext *context,
                                             PangoAttrColor *color,
                                             GC base_gc);

Used to represent a function which is called when a new GC must be created to draw something other than the default color when rendering a layout. The function used here will typically retrieve information from the context with pango_context_get_data().

`context` :	the PangoContext
`color` :	color attribute representing the desired color
`base_gc` :	default GC used for rendering. The function will typically copy attributes such as clip region from the GC
Returns :	the new GC

PangoFreeGCFunc ()

void        (*PangoFreeGCFunc)              (PangoContext *context,
                                             GC gc);

Used to represent a function which is called to free a GC created with the corresponding PangoGetGCFunc. The function used here will typically retrieve information from the context with pango_context_set_data().

`context` :	the PangoContext
`gc` :	the GC to free

pango_x_render ()

void        pango_x_render                  (Display *display,
                                             Drawable d,
                                             GC gc,
                                             PangoFont *font,
                                             PangoGlyphString *glyphs,
                                             gint x,
                                             gint y);

Render a PangoGlyphString onto an X drawable

`display` :	the X display
`d` :	the drawable on which to draw string
`gc` :	the graphics context
`font` :	the font in which to draw the string
`glyphs` :	the glyph string to draw
`x` :	the x position of start of string (in pixels)
`y` :	the y position of baseline (in pixels)

pango_x_render_layout_line ()

void        pango_x_render_layout_line      (Display *display,
                                             Drawable drawable,
                                             GC gc,
                                             PangoLayoutLine *line,
                                             int x,
                                             int y);

Render a PangoLayoutLine onto an X drawable

`display` :	the X display
`drawable` :	the drawable on which to draw string
`gc` :	GC to use for uncolored drawing
`line` :	a PangoLayoutLine
`x` :	the x position of start of string (in pixels)
`y` :	the y position of baseline (in pixels)

pango_x_render_layout ()

void        pango_x_render_layout           (Display *display,
                                             Drawable drawable,
                                             GC gc,
                                             PangoLayout *layout,
                                             int x,
                                             int y);