gschem/src/x_fstylecb.c

   1 /* gEDA - GPL Electronic Design Automation
   2  * gschem - gEDA Schematic Capture
   3  * Copyright (C) 1998-2010 Ales Hvezda
   4  * Copyright (C) 1998-2020 gEDA Contributors (see ChangeLog for details)
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20 /*! \file x_fstylecb.c
  21  *
  22  *  \brief A GtkComboBox for gschem fill styles.
  23  */
  24 #include <config.h>
  25
  26 #include <stdio.h>
  27 #ifdef HAVE_STDLIB_H
  28 #include <stdlib.h>
  29 #endif
  30 #ifdef HAVE_STRING_H
  31 #include <string.h>
  32 #endif
  33
  34 #include "gschem.h"
  35
  36
  37
  38 /*! \brief The columns in the GtkListStore
  39  */
  40 enum
  41 {
  42     COLUMN_NAME,
  43     COLUMN_INDEX,
  44     COLUMN_COUNT
  45 };
  46
  47
  48
  49 /*! \brief Stores the list of fill styles for use in GtkComboBox
  50  */
  51 static GtkListStore* fstyle_list_store = NULL;
  52
  53
  54
  55 static GtkListStore* create_fstyle_list_store();
  56
  57
  58
  59 /*! \brief Create the GtkListStore for fill styles.
  60  */
  61 static GtkListStore*
  62 create_fstyle_list_store ()
  63 {
  64   GtkTreeIter iter;
  65   GtkListStore *store;
  66
  67   store = gtk_list_store_new (COLUMN_COUNT,
  68                               G_TYPE_STRING,
  69                               G_TYPE_INT);
  70
  71   gtk_list_store_append (store, &iter);
  72   gtk_list_store_set (store, &iter,
  73     COLUMN_NAME,      pgettext ("fill-type", "Hollow"),
  74     COLUMN_INDEX,     FILLING_HOLLOW,
  75     -1
  76     );
  77
  78   gtk_list_store_append (store, &iter);
  79   gtk_list_store_set (store, &iter,
  80     COLUMN_NAME,      pgettext ("fill-type", "Filled"),
  81     COLUMN_INDEX,     FILLING_FILL,
  82     -1
  83     );
  84
  85   gtk_list_store_append (store, &iter);
  86   gtk_list_store_set (store, &iter,
  87     COLUMN_NAME,      pgettext ("fill-type", "Mesh"),
  88     COLUMN_INDEX,     FILLING_MESH,
  89     -1
  90     );
  91
  92   gtk_list_store_append (store, &iter);
  93   gtk_list_store_set (store, &iter,
  94     COLUMN_NAME,      pgettext ("fill-type", "Hatch"),
  95     COLUMN_INDEX,     FILLING_HATCH,
  96     -1
  97     );
  98
  99   return store;
 100 }
 101
 102
 103
 104 /*! \brief Create a ComboBox with the gschem fill styles.
 105  *
 106  *  \return GtkWidget
 107  */
 108 GtkWidget*
 109 x_fstylecb_new ()
 110 {
 111   GtkComboBox *combo;
 112   GtkCellLayout *layout;
 113   GtkCellRenderer *swatch_cell;
 114   GtkCellRenderer *text_cell;
 115
 116   if (fstyle_list_store == NULL) {
 117     fstyle_list_store = create_fstyle_list_store ();
 118   }
 119
 120   combo = GTK_COMBO_BOX (gtk_combo_box_new_with_model (GTK_TREE_MODEL (fstyle_list_store)));
 121   layout = GTK_CELL_LAYOUT (combo); /* For convenience */
 122
 123   /* Renders the fill swatch. Since this won't contain text, set a
 124    * minimum width. */
 125   swatch_cell = GTK_CELL_RENDERER (gschem_fill_swatch_cell_renderer_new ());
 126   g_object_set (swatch_cell, "width", 25, NULL);
 127   gtk_cell_layout_pack_start (layout, swatch_cell, FALSE);
 128   gtk_cell_layout_add_attribute (layout, swatch_cell, "fill-type", COLUMN_INDEX);
 129
 130   /* Renders the name of the fill style */
 131   text_cell = GTK_CELL_RENDERER (gtk_cell_renderer_text_new());
 132   g_object_set (text_cell, "xpad", 5, NULL);
 133   gtk_cell_layout_pack_start (layout, text_cell, TRUE);
 134   gtk_cell_layout_add_attribute (layout, text_cell, "text", COLUMN_NAME);
 135
 136   return GTK_WIDGET (combo);
 137 }
 138
 139
 140
 141 /*! \brief Get the currently selected fill style index
 142  *
 143  *  \param [in,out] widget The fill style combo box
 144  *  \return The currently selected fill style index
 145  */
 146 int
 147 x_fstylecb_get_index (GtkWidget *widget)
 148 {
 149   int index = -1;
 150   GtkTreeIter iter;
 151   GValue value = {0};
 152
 153   if (gtk_combo_box_get_active_iter (GTK_COMBO_BOX (widget), &iter)) {
 154     gtk_tree_model_get_value (GTK_TREE_MODEL (fstyle_list_store), &iter, COLUMN_INDEX, &value);
 155     index = g_value_get_int (&value);
 156     g_value_unset (&value);
 157   }
 158
 159   return index;
 160 }
 161
 162
 163
 164 /*! \brief Select the given fill style index
 165  *
 166  *  \param [in,out] widget The fill style combo box
 167  *  \param [in]     style  The fill style index to select
 168  */
 169 void
 170 x_fstylecb_set_index (GtkWidget *widget, int style)
 171 {
 172   GtkTreeIter *active = NULL;
 173   GtkTreeIter iter;
 174
 175   g_return_if_fail (fstyle_list_store != NULL);
 176
 177   if (style >= 0) {
 178     gboolean success;
 179     GValue value = {0};
 180
 181     success = gtk_tree_model_get_iter_first (GTK_TREE_MODEL (fstyle_list_store), &iter);
 182     while (success) {
 183       gtk_tree_model_get_value (GTK_TREE_MODEL (fstyle_list_store), &iter, COLUMN_INDEX, &value);
 184       if (g_value_get_int (&value) == style) {
 185         g_value_unset (&value);
 186         active = &iter;
 187         break;
 188       }
 189       g_value_unset (&value);
 190       success = gtk_tree_model_iter_next (GTK_TREE_MODEL(fstyle_list_store), &iter);
 191     }
 192   }
 193
 194   gtk_combo_box_set_active_iter (GTK_COMBO_BOX(widget), active);
 195 }