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evince/libdocument/ev-render-context.h
2023-03-22 20:15:51 +00:00

97 lines
3.9 KiB
C

/* this file is part of evince, a gnome document viewer
*
* Copyright (C) 2005 Jonathan Blandford <jrb@gnome.org>
*
* Evince is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Evince is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#pragma once
#if !defined (__EV_EVINCE_DOCUMENT_H_INSIDE__) && !defined (EVINCE_COMPILATION)
#error "Only <evince-document.h> can be included directly."
#endif
#include <glib-object.h>
#include "ev-macros.h"
#include "ev-page.h"
G_BEGIN_DECLS
typedef struct _EvRenderContext EvRenderContext;
typedef struct _EvRenderContextClass EvRenderContextClass;
#define EV_TYPE_RENDER_CONTEXT (ev_render_context_get_type())
#define EV_RENDER_CONTEXT(object) (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_RENDER_CONTEXT, EvRenderContext))
#define EV_RENDER_CONTEXT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_RENDER_CONTEXT, EvRenderContextClass))
#define EV_IS_RENDER_CONTEXT(object) (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_RENDER_CONTEXT))
struct _EvRenderContextClass
{
GObjectClass klass;
};
struct _EvRenderContext
{
GObject parent;
EvPage *page;
gint rotation;
gdouble scale;
gint target_width;
gint target_height;
};
EV_PUBLIC
GType ev_render_context_get_type (void) G_GNUC_CONST;
EV_PUBLIC
EvRenderContext *ev_render_context_new (EvPage *page,
gint rotation,
gdouble scale);
EV_PUBLIC
void ev_render_context_set_page (EvRenderContext *rc,
EvPage *page);
EV_PUBLIC
void ev_render_context_set_rotation (EvRenderContext *rc,
gint rotation);
EV_PUBLIC
void ev_render_context_set_scale (EvRenderContext *rc,
gdouble scale);
EV_PUBLIC
void ev_render_context_set_target_size (EvRenderContext *rc,
int target_width,
int target_height);
EV_PUBLIC
void ev_render_context_compute_scaled_size (EvRenderContext *rc,
double width_points,
double height_points,
int *scaled_width,
int *scaled_height);
EV_PUBLIC
void ev_render_context_compute_transformed_size (EvRenderContext *rc,
double width_points,
double height_points,
int *transformed_width,
int *transformed_height);
EV_PUBLIC
void ev_render_context_compute_scales (EvRenderContext *rc,
double width_points,
double height_points,
double *scale_x,
double *scale_y);
G_END_DECLS