moving trunk for module inkscape

(bzr r1)

1 files changed, 255 insertions, 0 deletions

diff --git a/src/widgets/spw-utilities.cpp b/src/widgets/spw-utilities.cpp
new file mode 100644
index 000000000..c3bcefa49
--- /dev/null
+++ b/src/widgets/spw-utilities.cpp
@@ -0,0 +1,255 @@
+#define __SPW_UTILITIES_C__
+
+/* 
+ * Inkscape Widget Utilities
+ * 
+ * Authors:
+ *   Bryce W. Harrington <brycehar@bryceharrington.com>
+ *   bulia byak <buliabyak@users.sf.net>
+ *
+ * Copyright (C) 2003 Bryce W. Harrington
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+
+#include <gtk/gtk.h>
+ 
+#include "selection.h"
+
+#include "helper/unit-menu.h"
+
+/** 
+ * Creates a label widget with the given text, at the given col, row 
+ * position in the table.
+ */
+GtkWidget *
+spw_label(GtkWidget * table, const gchar *label_text, int col, int row)
+{
+  GtkWidget *label_widget;
+
+  label_widget = gtk_label_new (label_text);
+  g_assert(label_widget != NULL);
+  gtk_misc_set_alignment (GTK_MISC (label_widget), 1.0, 0.5);
+  gtk_widget_show (label_widget);
+  gtk_table_attach (GTK_TABLE (table), label_widget, col, col+1, row, row+1, 
+		    (GtkAttachOptions)(GTK_EXPAND | GTK_FILL), (GtkAttachOptions)0, 4, 0);
+  return label_widget;
+}
+
+/**
+ * Creates a horizontal layout manager with 4-pixel spacing between children
+ * and space for 'width' columns.
+ */
+GtkWidget *
+spw_hbox(GtkWidget * table, int width, int col, int row)
+{
+  GtkWidget *hb;
+  /* Create a new hbox with a 4-pixel spacing between children */
+  hb = gtk_hbox_new (FALSE, 4);
+  g_assert(hb != NULL);
+  gtk_widget_show (hb);
+  gtk_table_attach (GTK_TABLE (table), hb, col, col+width, row, row+1, 
+		    (GtkAttachOptions)(GTK_EXPAND | GTK_FILL), (GtkAttachOptions)0, 0, 0);
+  return hb;
+}
+
+/**
+ * Creates a checkbutton widget and adds it to a vbox.
+ * This is a compound widget that includes a label.
+ */
+GtkWidget *spw_vbox_checkbutton(GtkWidget *dialog, GtkWidget *vbox,
+					const gchar *label, const gchar *tip, gchar *key, GCallback cb)
+{
+  g_assert (dialog != NULL);
+  g_assert (vbox != NULL);
+
+  GtkTooltips *tt = gtk_tooltips_new ();
+
+  GtkWidget *b = gtk_check_button_new_with_label (label);
+  gtk_tooltips_set_tip(tt, b, tip, NULL);
+  g_assert (b != NULL);
+  gtk_widget_show (b);
+  gtk_box_pack_start (GTK_BOX (vbox), b, FALSE, FALSE, 0);
+  gtk_object_set_data (GTK_OBJECT (b), "key", key);
+  gtk_object_set_data (GTK_OBJECT (dialog), key, b);
+  g_signal_connect (G_OBJECT (b), "toggled", cb, dialog);
+  return b;
+}
+
+
+/**
+ * Creates a checkbutton widget and adds it to a table.
+ * This is a compound widget that includes a label.
+ */
+GtkWidget *
+spw_checkbutton(GtkWidget * dialog, GtkWidget * table,
+		const gchar * label, gchar * key, int col, int row,
+		int insensitive, GCallback cb)
+{
+  GtkWidget *b;
+
+  g_assert(dialog != NULL);
+  g_assert(table  != NULL);
+
+	GtkWidget *l = gtk_label_new (label);
+	gtk_misc_set_alignment (GTK_MISC (l), 1.0, 0.5);
+	gtk_widget_show (l);
+  gtk_table_attach (GTK_TABLE (table), l, 0, 1, row, row+1,
+		    (GtkAttachOptions)(GTK_EXPAND | GTK_FILL), (GtkAttachOptions)0, 0, 0);
+
+  b = gtk_check_button_new ();
+  gtk_widget_show (b);
+  gtk_table_attach (GTK_TABLE (table), b, 1, 2, row, row+1,
+		    (GtkAttachOptions)(GTK_EXPAND | GTK_FILL), (GtkAttachOptions)0, 0, 0);
+  gtk_object_set_data (GTK_OBJECT (b), "key", key);
+  gtk_object_set_data (GTK_OBJECT (dialog), key, b);
+  g_signal_connect (G_OBJECT (b), "toggled", cb, dialog);
+  if (insensitive == 1) {
+    gtk_widget_set_sensitive (b, FALSE);
+  }
+  return b;
+}
+
+/**
+ * Creates a dropdown widget.  This is a compound widget that includes
+ * a label as well as the dropdown.
+ */
+GtkWidget *
+spw_dropdown(GtkWidget * dialog, GtkWidget * table,
+	     const gchar * label_text, gchar * key, int row,
+	     GtkWidget * selector
+	     )
+{
+  g_assert(dialog   != NULL);
+  g_assert(table    != NULL);
+  g_assert(selector != NULL);
+
+  spw_label(table, label_text, 0, row);
+
+  gtk_widget_show (selector);
+  gtk_table_attach (GTK_TABLE (table), selector, 1, 2, row, row+1, 
+		    (GtkAttachOptions)(GTK_EXPAND | GTK_FILL), (GtkAttachOptions)0, 0, 0);
+  gtk_object_set_data (GTK_OBJECT (dialog), key, selector);
+  return selector;
+}
+
+/**
+ * Creates a unit selector widget, used for selecting whether one wishes
+ * to measure screen elements in millimeters, points, etc.  This is a 
+ * compound unit that includes a label as well as the dropdown selector.
+ */
+GtkWidget *
+spw_unit_selector(GtkWidget * dialog, GtkWidget * table,
+		  const gchar * label_text, gchar * key, int row,
+		GtkWidget * us, GCallback cb, bool can_be_negative)
+{
+  GtkWidget * sb;
+  GtkObject * a;
+
+  g_assert(dialog != NULL);
+  g_assert(table  != NULL);
+  g_assert(us     != NULL);
+
+  spw_label(table, label_text, 0, row);
+
+  a = gtk_adjustment_new (0.0, can_be_negative?-1e6:0, 1e6, 1.0, 10.0, 10.0);
+  g_assert(a != NULL);
+  gtk_object_set_data (GTK_OBJECT (a), "key", key);
+  gtk_object_set_data (GTK_OBJECT (a), "unit_selector", us);
+  gtk_object_set_data (GTK_OBJECT (dialog), key, a);
+  sp_unit_selector_add_adjustment (SP_UNIT_SELECTOR (us), GTK_ADJUSTMENT (a));
+  sb = gtk_spin_button_new (GTK_ADJUSTMENT (a), 1.0, 4);
+  g_assert(sb != NULL);
+  gtk_widget_show (sb);
+  gtk_table_attach (GTK_TABLE (table), sb, 1, 2, row, row+1, 
+		    (GtkAttachOptions)(GTK_EXPAND | GTK_FILL), (GtkAttachOptions)0, 0, 0);
+  g_signal_connect (G_OBJECT (a), "value_changed", cb, dialog);
+  return sb;
+}
+
+void
+sp_set_font_size_recursive (GtkWidget *w, gpointer font)
+{
+	guint size = GPOINTER_TO_UINT (font);
+
+	PangoFontDescription* pan = pango_font_description_new ();
+	pango_font_description_set_size (pan, size);
+
+	gtk_widget_modify_font (w, pan);
+
+	if (GTK_IS_CONTAINER(w)) {
+		gtk_container_foreach (GTK_CONTAINER(w), (GtkCallback) sp_set_font_size_recursive, font);
+	}
+
+	pango_font_description_free (pan);
+}
+
+void
+sp_set_font_size (GtkWidget *w, guint font)
+{
+	sp_set_font_size_recursive (w, GUINT_TO_POINTER(font));
+}
+
+void
+sp_set_font_size_smaller (GtkWidget *w)
+{
+	PangoContext *pc = gtk_widget_get_pango_context (w);
+	PangoFontDescription* pfd = pango_context_get_font_description (pc);
+	guint size = pango_font_description_get_size (pfd);
+	sp_set_font_size_recursive (w, GUINT_TO_POINTER((int) (0.8*size)));
+}
+
+/**
+\brief  Finds the descendant of w which has the data with the given key and returns the data, or NULL if there's none
+*/
+gpointer
+sp_search_by_data_recursive (GtkWidget *w, gpointer key)
+{
+	gpointer r = NULL;
+
+	if (w && GTK_IS_OBJECT(w)) {
+		r = gtk_object_get_data (GTK_OBJECT(w), (gchar *) key);
+	}
+	if (r) return r;
+	
+	if (GTK_IS_CONTAINER(w)) {
+		GList *ch = gtk_container_get_children (GTK_CONTAINER(w));
+		for (GList *i = ch; i != NULL; i = i->next) {
+			r = sp_search_by_data_recursive(GTK_WIDGET(i->data), key);
+			if (r) return r;
+		}
+	}
+
+	return NULL;
+}
+
+/**
+\brief  Returns the descendant of w which has the given key and value pair, or NULL if there's none
+*/
+GtkWidget *
+sp_search_by_value_recursive (GtkWidget *w, gchar *key, gchar *value)
+{
+	gchar *r = NULL;
+	GtkWidget *child;
+
+	if (w && GTK_IS_OBJECT(w)) {
+		r = (gchar *) gtk_object_get_data (GTK_OBJECT(w), key);
+	}
+	if (r && !strcmp (r, value)) return w;
+	
+	if (GTK_IS_CONTAINER(w)) {
+		GList *ch = gtk_container_get_children (GTK_CONTAINER(w));
+		for (GList *i = ch; i != NULL; i = i->next) {
+			child = sp_search_by_value_recursive(GTK_WIDGET(i->data), key, value);
+			if (child) return child;
+		}
+	}
+
+	return NULL;
+}
+