Moved from Mate-Extra repository

1 files changed, 322 insertions, 0 deletions

diff --git a/mate-dictionary/src/gdict-print.c b/mate-dictionary/src/gdict-print.c
new file mode 100644
index 00000000..855dbab6
--- /dev/null
+++ b/mate-dictionary/src/gdict-print.c
@@ -0,0 +1,322 @@
+/* gdict-print.c - print-related helper functions
+ *
+ * This file is part of MATE Dictionary
+ *
+ * Copyright (C) 2005 Emmanuele Bassi
+ *
+ * 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 of
+ * the License, 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdio.h>
+#include <string.h>
+#include <math.h>
+
+#include <gtk/gtk.h>
+#include <glib/gi18n.h>
+
+#include <mateconf/mateconf-client.h>
+
+#include <libgdict/gdict.h>
+
+#include "gdict-pref-dialog.h"
+#include "gdict-print.h"
+
+#define HEADER_HEIGHT(lines)    ((lines) * 72 / 25.4)
+#define HEADER_GAP(lines)       ((lines) * 72 / 25.4)
+
+typedef struct _GdictPrintData
+{
+  GdictDefbox *defbox;
+  gchar *word;
+
+  PangoFontDescription *font_desc;
+  gdouble font_size;
+
+  gchar **lines;
+  
+  gint n_lines;
+  gint lines_per_page;
+  gint n_pages;
+} GdictPrintData;
+
+static void
+begin_print (GtkPrintOperation *operation,
+             GtkPrintContext   *context,
+             gpointer           user_data)
+{
+  GdictPrintData *data = user_data;
+  gchar *contents;
+  gdouble height;
+
+  height = gtk_print_context_get_height (context)
+           - HEADER_HEIGHT (10)
+           - HEADER_GAP (3);
+
+  contents = gdict_defbox_get_text (data->defbox, NULL);
+
+  data->lines = g_strsplit (contents, "\n", 0);
+  data->n_lines = g_strv_length (data->lines);
+  data->lines_per_page = floor (height / data->font_size);
+
+  data->n_pages = (data->n_lines - 1) / data->lines_per_page + 1;
+
+  gtk_print_operation_set_n_pages (operation, data->n_pages);
+
+  g_free (contents);
+}
+
+static void
+draw_page (GtkPrintOperation *operation,
+           GtkPrintContext   *context,
+           gint               page_number,
+           gpointer           user_data)
+{
+  GdictPrintData *data = user_data;
+  cairo_t *cr;
+  PangoLayout *layout;
+  gint text_width, text_height;
+  gdouble width;
+  gint line, i;
+  PangoFontDescription *desc;
+  gchar *page_str;
+
+  cr = gtk_print_context_get_cairo_context (context);
+  width = gtk_print_context_get_width (context);
+
+  cairo_rectangle (cr, 0, 0, width, HEADER_HEIGHT (10));
+  
+  cairo_set_source_rgb (cr, 0.8, 0.8, 0.8);
+  cairo_fill_preserve (cr);
+  
+  cairo_set_source_rgb (cr, 0, 0, 0);
+  cairo_set_line_width (cr, 1);
+  cairo_stroke (cr);
+
+  /* header */
+  layout = gtk_print_context_create_pango_layout (context);
+
+  desc = pango_font_description_from_string ("sans 14");
+  pango_layout_set_font_description (layout, desc);
+  pango_font_description_free (desc);
+
+  pango_layout_set_text (layout, data->word, -1);
+  pango_layout_get_pixel_size (layout, &text_width, &text_height);
+
+  if (text_width > width)
+    {
+      pango_layout_set_width (layout, width);
+      pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_START);
+      pango_layout_get_pixel_size (layout, &text_width, &text_height);
+    }
+
+  cairo_move_to (cr, (width - text_width) / 2,
+                     (HEADER_HEIGHT (10) - text_height) / 2);
+  pango_cairo_show_layout (cr, layout);
+
+  page_str = g_strdup_printf ("%d/%d", page_number + 1, data->n_pages);
+  pango_layout_set_text (layout, page_str, -1);
+  g_free (page_str);
+
+  pango_layout_set_width (layout, -1);
+  pango_layout_get_pixel_size (layout, &text_width, &text_height);
+  cairo_move_to (cr, width - text_width - 4,
+                     (HEADER_HEIGHT (10) - text_height) / 2);
+  pango_cairo_show_layout (cr, layout);
+  
+  g_object_unref (layout);
+
+  /* text */
+  layout = gtk_print_context_create_pango_layout (context);
+  pango_font_description_set_size (data->font_desc,
+                                   data->font_size * PANGO_SCALE);
+  pango_layout_set_font_description (layout, data->font_desc);
+  
+  cairo_move_to (cr, 0, HEADER_HEIGHT (10) + HEADER_GAP (3));
+  line = page_number * data->lines_per_page;
+  for (i = 0; i < data->lines_per_page && line < data->n_lines; i++) 
+    {
+      pango_layout_set_text (layout, data->lines[line], -1);
+
+      pango_cairo_show_layout (cr, layout);
+      cairo_rel_move_to (cr, 0, data->font_size);
+      line++;
+    }
+
+  g_object_unref (layout);
+}
+
+static void
+end_print (GtkPrintOperation *operation,
+           GtkPrintContext   *context,
+           gpointer           user_data)
+{
+  GdictPrintData *data = user_data;
+
+  pango_font_description_free (data->font_desc);
+  g_free (data->word);
+  g_strfreev (data->lines);
+  g_free (data);
+}
+
+static gchar *
+get_print_font (void)
+{
+  MateConfClient *client;
+  gchar *print_font;
+  
+  client = mateconf_client_get_default ();
+  print_font = mateconf_client_get_string (client,
+  					GDICT_MATECONF_PRINT_FONT_KEY,
+  					NULL);
+  if (!print_font)
+    print_font = g_strdup (GDICT_DEFAULT_PRINT_FONT);
+  
+  g_object_unref (client);
+  
+  return print_font;
+}
+
+void
+gdict_show_print_preview (GtkWindow   *parent,
+                          GdictDefbox *defbox)
+{
+  GtkPrintOperation *operation;
+  GdictPrintData *data;
+  gchar *print_font;
+  gchar *word;
+  GError *error;
+  
+  g_return_if_fail (parent == NULL || GTK_IS_WINDOW (parent));
+  g_return_if_fail (GDICT_IS_DEFBOX (defbox));
+
+  g_object_get (defbox, "word", &word, NULL);
+  if (!word)
+    {
+      g_warning ("Preview should be disabled.");
+      return;
+    }
+
+  data = g_new0 (GdictPrintData, 1);
+  data->defbox = defbox;
+  data->word = word;
+
+  operation = gtk_print_operation_new ();
+  print_font = get_print_font ();
+  data->font_desc = pango_font_description_from_string (print_font);
+  data->font_size = pango_font_description_get_size (data->font_desc)
+                    / PANGO_SCALE;
+  g_free (print_font);
+
+  g_signal_connect (operation, "begin-print", 
+		    G_CALLBACK (begin_print), data);
+  g_signal_connect (operation, "draw-page", 
+		    G_CALLBACK (draw_page), data);
+  g_signal_connect (operation, "end-print", 
+		    G_CALLBACK (end_print), data);
+
+  error = NULL;
+  gtk_print_operation_run (operation,
+                           GTK_PRINT_OPERATION_ACTION_PREVIEW,
+                           parent,
+                           &error);
+  g_object_unref (operation);
+
+  if (error)
+    {
+      GtkWidget *dialog;
+
+      dialog = gtk_message_dialog_new (parent,
+                                       GTK_DIALOG_DESTROY_WITH_PARENT,
+                                       GTK_MESSAGE_ERROR,
+                                       GTK_BUTTONS_CLOSE,
+				       _("Unable to display the preview: %s"),
+                                       error->message);
+      g_error_free (error);
+
+      g_signal_connect (dialog, "response",
+			G_CALLBACK (gtk_widget_destroy), NULL);
+
+      gtk_widget_show (dialog);
+    }
+}
+
+void
+gdict_show_print_dialog (GtkWindow   *parent,
+			 GdictDefbox *defbox)
+{
+  GtkPrintOperation *operation;
+  GdictPrintData *data;
+  gchar *print_font;
+  gchar *word;
+  GError *error;
+  
+  g_return_if_fail (parent == NULL || GTK_IS_WINDOW (parent));
+  g_return_if_fail (GDICT_IS_DEFBOX (defbox));
+
+  g_object_get (defbox, "word", &word, NULL);
+  if (!word)
+    {
+      g_warning ("Print should be disabled.");
+      return;
+    }
+
+  data = g_new0 (GdictPrintData, 1);
+  data->defbox = defbox;
+  data->word = word;
+
+  operation = gtk_print_operation_new ();
+  print_font = get_print_font ();
+  data->font_desc = pango_font_description_from_string (print_font);
+  data->font_size = pango_font_description_get_size (data->font_desc)
+                    / PANGO_SCALE;
+  g_free (print_font);
+
+  g_signal_connect (operation, "begin-print", 
+		    G_CALLBACK (begin_print), data);
+  g_signal_connect (operation, "draw-page", 
+		    G_CALLBACK (draw_page), data);
+  g_signal_connect (operation, "end-print", 
+		    G_CALLBACK (end_print), data);
+
+  error = NULL;
+  gtk_print_operation_run (operation,
+                           GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG,
+                           parent,
+                           &error);
+  g_object_unref (operation);
+
+  if (error)
+    {
+      GtkWidget *dialog;
+
+      dialog = gtk_message_dialog_new (parent,
+                                       GTK_DIALOG_DESTROY_WITH_PARENT,
+                                       GTK_MESSAGE_ERROR,
+                                       GTK_BUTTONS_CLOSE,
+				       _("Unable to display the preview: %s"),
+                                       error->message);
+      g_error_free (error);
+
+      g_signal_connect (dialog, "response",
+			G_CALLBACK (gtk_widget_destroy), NULL);
+
+      gtk_widget_show (dialog);
+    }
+}