+++ /dev/null
-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
-/*
- * Copyright (C) 2005, Nickolay V. Shmyrev <nshmyrev@yandex.ru>
- *
- * This program 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, or (at your option)
- * any later version.
- *
- * This program 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-#include <config.h>
-
-#include "dvi-document.h"
-#include "ev-document-thumbnails.h"
-
-#include "mdvi.h"
-#include "fonts.h"
-#include "pixbuf-device.h"
-
-#include <gtk/gtk.h>
-
-GMutex *dvi_context_mutex = NULL;
-
-enum {
- PROP_0,
- PROP_TITLE
-};
-
-struct _DviDocumentClass
-{
- GObjectClass parent_class;
-};
-
-struct _DviDocument
-{
- GObject parent_instance;
-
- DviContext *context;
- DviPageSpec *spec;
- DviParams *params;
-
- /* To let document scale we should remember width and height */
-
- double base_width;
- double base_height;
-};
-
-typedef struct _DviDocumentClass DviDocumentClass;
-
-static void dvi_document_document_iface_init (EvDocumentIface *iface);
-#if 0
-static void dvi_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface);
-#endif
-static void dvi_document_get_page_size (EvDocument *document,
- int page,
- double *width,
- double *height);
-
-G_DEFINE_TYPE_WITH_CODE
- (DviDocument, dvi_document, G_TYPE_OBJECT,
- {
- G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT, dvi_document_document_iface_init);
-#if 0
- G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS, dvi_document_document_thumbnails_iface_init)
-#endif
- });
-
-static gboolean
-dvi_document_load (EvDocument *document,
- const char *uri,
- GError **error)
-{
- gchar *filename;
- DviDocument *dvi_document = DVI_DOCUMENT(document);
-
- filename = g_filename_from_uri (uri, NULL, error);
-
- if (!filename)
- return FALSE;
-
- if (dvi_document->context)
- mdvi_destroy_context (dvi_document->context);
-
- dvi_document->context = mdvi_init_context(dvi_document->params, dvi_document->spec, filename);
-
- mdvi_pixbuf_device_init (&dvi_document->context->device);
-
- dvi_document->base_width = dvi_document->context->dvi_page_w * dvi_document->context->params.conv
- + 2 * unit2pix(dvi_document->params->dpi, MDVI_VMARGIN) / dvi_document->params->hshrink;
-
- dvi_document->base_height = dvi_document->context->dvi_page_h * dvi_document->context->params.vconv
- + 2 * unit2pix(dvi_document->params->dpi, MDVI_VMARGIN) / dvi_document->params->vshrink;
-
- dvi_context_mutex = g_mutex_new ();
-
- return TRUE;
-}
-
-
-static gboolean
-dvi_document_save (EvDocument *document,
- const char *uri,
- GError **error)
-{
- g_warning ("dvi_document_save not implemented"); /* FIXME */
- return TRUE;
-}
-
-static int
-dvi_document_get_n_pages (EvDocument *document)
-{
- DviDocument *dvi_document = DVI_DOCUMENT (document);
- return dvi_document->context->npages;
-}
-
-static void
-dvi_document_get_page_size (EvDocument *document,
- int page,
- double *width,
- double *height)
-{
- DviDocument * dvi_document = DVI_DOCUMENT (document);
-
- if (width != NULL)
- *width = dvi_document->base_width;
-
- if (height != NULL)
- *height = dvi_document->base_height;
-
- return;
-}
-
-static GdkPixbuf *
-dvi_document_render_pixbuf (EvDocument *document, int page, double scale)
-{
- GdkPixbuf *pixbuf;
-
- DviDocument *dvi_document = DVI_DOCUMENT(document);
-
- gint required_width, required_height;
- gint proposed_width, proposed_height;
- gint xmargin = 0, ymargin = 0;
-
- /* We should protect our context since it's not
- * thread safe. The work to the future -
- * let context render page independently
- */
- g_mutex_lock (dvi_context_mutex);
-
- mdvi_setpage(dvi_document->context, page);
-
- mdvi_set_shrink (dvi_document->context,
- (int)((dvi_document->params->hshrink - 1) / scale) + 1,
- (int)((dvi_document->params->vshrink - 1) / scale) + 1);
-
- required_width = dvi_document->base_width * scale;
- required_height = dvi_document->base_height * scale;
- proposed_width = dvi_document->context->dvi_page_w * dvi_document->context->params.conv;
- proposed_height = dvi_document->context->dvi_page_h * dvi_document->context->params.vconv;
-
- if (required_width >= proposed_width)
- xmargin = (required_width - proposed_width) / 2;
- if (required_height >= proposed_height)
- ymargin = (required_height - proposed_height) / 2;
-
- mdvi_pixbuf_device_set_margins (&dvi_document->context->device, xmargin, ymargin);
-
- mdvi_pixbuf_device_render (dvi_document->context);
-
- pixbuf = mdvi_pixbuf_device_get_pixbuf (&dvi_document->context->device);
-
- g_mutex_unlock (dvi_context_mutex);
-
- return pixbuf;
-}
-
-static void
-dvi_document_finalize (GObject *object)
-{
- DviDocument *dvi_document = DVI_DOCUMENT(object);
-
- if (dvi_document->context)
- {
- mdvi_pixbuf_device_free (&dvi_document->context->device);
- mdvi_destroy_context (dvi_document->context);
- }
-
- if (dvi_document->params)
- g_free (dvi_document->params);
-
- G_OBJECT_CLASS (dvi_document_parent_class)->finalize (object);
-}
-
-static void
-dvi_document_set_property (GObject *object,
- guint prop_id,
- const GValue *value,
- GParamSpec *pspec)
-{
- switch (prop_id)
- {
- case PROP_TITLE:
- /* read only */
- break;
- }
-}
-
-static void
-dvi_document_get_property (GObject *object,
- guint prop_id,
- GValue *value,
- GParamSpec *pspec)
-{
- switch (prop_id)
- {
- case PROP_TITLE:
- g_value_set_string (value, NULL);
- break;
- }
-}
-
-static void
-dvi_document_class_init (DviDocumentClass *klass)
-{
- GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
-
- gobject_class->finalize = dvi_document_finalize;
- gobject_class->get_property = dvi_document_get_property;
- gobject_class->set_property = dvi_document_set_property;
-
- g_object_class_override_property (gobject_class, PROP_TITLE, "title");
-}
-
-static char *
-dvi_document_get_text (EvDocument *document, gint page, EvRectangle *rect)
-{
- /* FIXME this method should not be in EvDocument */
- g_warning ("dvi_document_get_text not implemented");
- return NULL;
-}
-
-static void
-dvi_document_document_iface_init (EvDocumentIface *iface)
-{
- iface->load = dvi_document_load;
- iface->save = dvi_document_save;
- iface->get_text = dvi_document_get_text;
- iface->get_n_pages = dvi_document_get_n_pages;
- iface->get_page_size = dvi_document_get_page_size;
- iface->render_pixbuf = dvi_document_render_pixbuf;
-}
-
-#if 0
-static void
-dvi_document_thumbnails_get_dimensions (EvDocumentThumbnails *document,
- gint page,
- gint suggested_width,
- gint *width,
- gint *height)
-{
- return;
-}
-
-static GdkPixbuf *
-dvi_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document,
- gint page,
- gint width)
-{
-
- return NULL;
-}
-
-static void
-dvi_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface)
-{
- iface->get_thumbnail = dvi_document_thumbnails_get_thumbnail;
- iface->get_dimensions = dvi_document_thumbnails_get_dimensions;
-}
-#endif
-
-
-static void
-dvi_document_init_params (DviDocument *dvi_document)
-{
- dvi_document->params = g_new0 (DviParams, 1);
-
- dvi_document->params->dpi = MDVI_DPI;
- dvi_document->params->vdpi = MDVI_VDPI;
- dvi_document->params->mag = MDVI_MAGNIFICATION;
- dvi_document->params->density = MDVI_DEFAULT_DENSITY;
- dvi_document->params->gamma = MDVI_DEFAULT_GAMMA;
- dvi_document->params->flags = MDVI_PARAM_ANTIALIASED;
- dvi_document->params->hdrift = 0;
- dvi_document->params->vdrift = 0;
- dvi_document->params->hshrink = MDVI_SHRINK_FROM_DPI(dvi_document->params->dpi);
- dvi_document->params->vshrink = MDVI_SHRINK_FROM_DPI(dvi_document->params->dpi);
- dvi_document->params->orientation = MDVI_ORIENT_TBLR;
-
- dvi_document->spec = NULL;
-
- dvi_document->params->bg = 0xffffffff;
- dvi_document->params->fg = 0xff000000;
-
- mdvi_init_kpathsea("evince", MDVI_MFMODE, MDVI_FALLBACK_FONT, MDVI_DPI);
-
- mdvi_register_fonts ();
-}
-
-static void
-dvi_document_init (DviDocument *dvi_document)
-{
- dvi_document->context = NULL;
- dvi_document_init_params (dvi_document);
-}
https://www.fi.muni.cz/~kas/git / evince.git / blobdiff