99 lines
2.4 KiB
C
99 lines
2.4 KiB
C
/* viewer.h: PangoViewer class
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*
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* Copyright (C) 1999,2004,2005 Red Hat, Inc.
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* Copyright (C) 2001 Sun Microsystems
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef VIEWER_H
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#define VIEWER_H
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#include <pango/pango.h>
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typedef struct _PangoViewer PangoViewer;
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struct _PangoViewer {
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const char *name;
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const char *id;
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const char *write_suffix;
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gpointer (*create) (const PangoViewer *klass);
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void (*destroy) (gpointer instance);
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PangoContext * (*get_context) (gpointer instance);
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gpointer (*create_surface) (gpointer instance,
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int width,
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int height);
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void (*destroy_surface) (gpointer instance,
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gpointer surface);
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void (*render) (gpointer instance,
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gpointer surface,
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PangoContext *context,
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int *width,
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int *height,
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gpointer state);
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/* The following can be NULL */
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void (*write) (gpointer instance,
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gpointer surface,
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FILE *stream,
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int width,
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int height);
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gpointer (*create_window) (gpointer instance,
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const char *title,
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int width,
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int height);
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void (*destroy_window) (gpointer instance,
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gpointer window);
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gpointer (*display) (gpointer instance,
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gpointer surface,
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gpointer window,
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int width,
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int height,
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gpointer state);
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void (*load) (gpointer instance,
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gpointer surface,
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guchar *buffer,
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int width,
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int height,
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int stride);
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void (*save) (gpointer instance,
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gpointer surface,
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guchar *buffer,
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int width,
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int height,
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int stride);
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GOptionGroup * (*get_option_group) (const PangoViewer *klass);
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};
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extern const PangoViewer *viewers[];
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#endif /* VIEWER_H */
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