Fix for 943225 : Replace Gtk::OptionMenu with Gtk::ComboBox

(bzr r11083)

1 files changed, 458 insertions, 0 deletions

diff --git a/src/widgets/stroke-marker-selector.cpp b/src/widgets/stroke-marker-selector.cpp
new file mode 100644
index 000000000..a39ebf8be
--- /dev/null
+++ b/src/widgets/stroke-marker-selector.cpp
@@ -0,0 +1,458 @@
+/**
+ * @file
+ * Combobox for selecting dash patterns - implementation.
+ */
+/* Author:
+ *   Lauris Kaplinski <lauris@kaplinski.com>
+ *   bulia byak <buliabyak@users.sf.net>
+ *   Maximilian Albert <maximilian.albert@gmail.com>
+ *
+ * Copyright (C) 2002 Lauris Kaplinski
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "stroke-marker-selector.h"
+
+#include <cstring>
+#include <string>
+#include <glibmm/i18n.h>
+#include <2geom/coord.h>
+
+
+#include "style.h"
+#include "dialogs/dialog-events.h"
+#include "desktop-handles.h"
+#include "desktop-style.h"
+#include "preferences.h"
+#include "path-prefix.h"
+#include "io/sys.h"
+#include "marker.h"
+#include "sp-defs.h"
+#include "sp-root.h"
+#include "ui/cache/svg_preview_cache.h"
+#include "helper/stock-items.h"
+
+#include <gtkmm/adjustment.h>
+#include "ui/widget/spinbutton.h"
+
+static Inkscape::UI::Cache::SvgPreview svg_preview_cache;
+
+MarkerComboBox::MarkerComboBox(gchar const *id) :
+            Gtk::ComboBox(),
+            combo_id(id),
+            updating(false),
+            is_history(false)
+{
+
+    marker_store = Gtk::ListStore::create(marker_columns);
+    set_model(marker_store);
+    pack_start(image_renderer, false);
+    pack_end(label_renderer, true);
+    label_renderer.set_padding(5, 0);
+    image_renderer.set_padding(5, 0);
+    set_cell_data_func(label_renderer, sigc::mem_fun(*this, &MarkerComboBox::prepareLabelRenderer));
+    set_cell_data_func(image_renderer, sigc::mem_fun(*this, &MarkerComboBox::prepareImageRenderer));
+    gtk_combo_box_set_row_separator_func(GTK_COMBO_BOX(gobj()), MarkerComboBox::separator_cb, NULL, NULL);
+
+    empty_image = new Gtk::Image();
+
+    sandbox = ink_markers_preview_doc ();
+    desktop = inkscape_active_desktop();
+    doc = sp_desktop_document(desktop);
+
+    init_combo();
+
+    show();
+}
+
+MarkerComboBox::~MarkerComboBox() {
+    delete combo_id;
+    delete sandbox;
+}
+
+/**
+ * Init the combobox widget to display markers from markers.svg
+ */
+void
+MarkerComboBox::init_combo()
+{
+    updating = false;
+
+    if (!doc) {
+        Gtk::TreeModel::Row row = *(marker_store->append());
+        row[marker_columns.label] = _("No document selected");
+        row[marker_columns.image] = NULL;
+        set_sensitive(false);
+        set_current(NULL);
+        return;
+    }
+
+    static SPDocument *markers_doc = NULL;
+
+    // add "None"
+    Gtk::TreeModel::Row row = *(marker_store->append());
+    row[marker_columns.label] = _("None");
+    row[marker_columns.marker] = g_strdup("none");
+    row[marker_columns.image] = NULL;
+
+    // find and load markers.svg
+    if (markers_doc == NULL) {
+        char *markers_source = g_build_filename(INKSCAPE_MARKERSDIR, "markers.svg", NULL);
+        if (Inkscape::IO::file_test(markers_source, G_FILE_TEST_IS_REGULAR)) {
+            markers_doc = SPDocument::createNewDoc(markers_source, FALSE);
+        }
+        g_free(markers_source);
+    }
+
+    // suck in from current doc
+    is_history = true;
+    sp_marker_list_from_doc(doc);
+    is_history = false;
+
+    // add separator
+    Gtk::TreeModel::Row row_sep = *(marker_store->append());
+    row_sep[marker_columns.label] = "Separator";
+    row_sep[marker_columns.isseparator] = true;
+    row_sep[marker_columns.image] = NULL;
+
+    // suck in from markers.svg
+    if (markers_doc) {
+        doc->ensureUpToDate();
+        sp_marker_list_from_doc(markers_doc);
+    }
+
+    set_sensitive(true);
+
+    /* Set history */
+    set_current(NULL);
+}
+
+/**
+ * Sets the current marker in the marker combobox.
+ */
+void MarkerComboBox::set_current(SPObject *marker)
+{
+    updating = true;
+
+    if (marker != NULL) {
+        bool mark_is_stock = false;
+        if (marker->getRepr()->attribute("inkscape:stockid")) {
+            mark_is_stock = true;
+        }
+
+        gchar *markname = 0;
+        if (mark_is_stock) {
+            markname = g_strdup(marker->getRepr()->attribute("inkscape:stockid"));
+        } else {
+            markname = g_strdup(marker->getRepr()->attribute("id"));
+        }
+
+        set_selected(markname);
+
+        g_free (markname);
+    }
+    else {
+        set_selected(NULL);
+    }
+
+    updating = false;
+
+}
+/**
+ * Return a uri string representing the current selected marker used for setting the marker style in the document
+ */
+const gchar * MarkerComboBox::get_active_marker_uri()
+{
+    /* Get Marker */
+    const gchar *markid = get_active()->get_value(marker_columns.marker);
+    if (!markid)
+    {
+        return NULL;
+    }
+
+    gchar const *marker = "";
+    if (strcmp(markid, "none")) {
+       bool stockid = get_active()->get_value(marker_columns.isstock);
+
+       gchar *markurn = g_strdup(markid);
+       if (stockid) markurn = g_strconcat("urn:inkscape:marker:",markid,NULL);
+       SPObject *mark = get_stock_item(markurn);
+       g_free(markurn);
+       if (mark) {
+           Inkscape::XML::Node *repr = mark->getRepr();
+            marker = g_strconcat("url(#", repr->attribute("id"), ")", NULL);
+        }
+    } else {
+        marker = g_strdup(markid);
+    }
+
+    return marker;
+}
+
+
+void MarkerComboBox::set_active_history() {
+    set_selected(get_active()->get_value(marker_columns.marker));
+}
+
+
+void MarkerComboBox::set_selected(const gchar *name) {
+
+    if (!name) {
+        set_active(0);
+        return;
+    }
+
+    for(Gtk::TreeIter iter = marker_store->children().begin();
+        iter != marker_store->children().end(); ++iter) {
+            Gtk::TreeModel::Row row = (*iter);
+            if (row[marker_columns.marker] &&
+            		!strcmp(row[marker_columns.marker], name)) {
+                set_active(iter);
+                if (strcmp(name, "none"))
+                    set_history(row);
+                return;
+            }
+    }
+}
+
+void MarkerComboBox::set_history(Gtk::TreeModel::Row match_row) {
+
+    if (!match_row) {
+        return;
+    }
+
+    for(Gtk::TreeIter iter = marker_store->children().begin();
+        iter != marker_store->children().end(); ++iter) {
+            Gtk::TreeModel::Row row = (*iter);
+            if (row[marker_columns.history] &&
+                    !strcmp(row[marker_columns.marker], match_row[marker_columns.marker])) {
+                    return;
+            }
+    }
+
+    // Add a new row to the history
+    Gtk::TreeModel::Row row = *(marker_store->insert_after(marker_store->children().begin()));
+    row[marker_columns.marker] = g_strdup(match_row.get_value(marker_columns.marker));
+    row[marker_columns.label] = match_row.get_value(marker_columns.label);
+    row[marker_columns.isstock] = match_row.get_value(marker_columns.isstock);
+    row[marker_columns.image] = match_row.get_value(marker_columns.image);
+    row[marker_columns.history] = true;
+}
+
+/**
+ * Pick up all markers from source, except those that are in
+ * current_doc (if non-NULL), and add items to the combo.
+ */
+void MarkerComboBox::sp_marker_list_from_doc(SPDocument *source)
+{
+    GSList *ml = get_marker_list(source);
+    GSList *clean_ml = NULL;
+
+    for (; ml != NULL; ml = ml->next) {
+        if (!SP_IS_MARKER(ml->data))
+            continue;
+
+        // Add to the list of markers we really do wish to show
+        clean_ml = g_slist_prepend (clean_ml, ml->data);
+    }
+    add_markers(clean_ml, source);
+
+    g_slist_free (ml);
+    g_slist_free (clean_ml);
+}
+
+/**
+ *  Returns a list of markers in the defs of the given source document as a GSList object
+ *  Returns NULL if there are no markers in the document.
+ */
+GSList *MarkerComboBox::get_marker_list (SPDocument *source)
+{
+    if (source == NULL)
+        return NULL;
+
+    GSList *ml   = NULL;
+    SPDefs *defs = source->getDefs();
+    for ( SPObject *child = defs->firstChild(); child; child = child->getNext() )
+    {
+        if (SP_IS_MARKER(child)) {
+            ml = g_slist_prepend (ml, child);
+        }
+    }
+    return ml;
+}
+
+/**
+ * Adds previews of markers in marker_list to the combo
+ */
+void MarkerComboBox::add_markers (GSList *marker_list, SPDocument *source)
+{
+    // Do this here, outside of loop, to speed up preview generation:
+    Inkscape::Drawing drawing;
+    unsigned const visionkey = SPItem::display_key_new(1);
+    drawing.setRoot(sandbox->getRoot()->invoke_show(drawing, visionkey, SP_ITEM_SHOW_DISPLAY));
+
+    for (; marker_list != NULL; marker_list = marker_list->next) {
+
+        Inkscape::XML::Node *repr = reinterpret_cast<SPItem *>(marker_list->data)->getRepr();
+        bool isstock = (repr->attribute("inkscape:stockid"));
+        gchar const *markid = repr->attribute("id");
+
+        // generate preview
+        Gtk::Image *prv = create_marker_image (22, markid, source, drawing, visionkey);
+        prv->show();
+
+        Gtk::TreeModel::Row row = *(marker_store->append());
+        row[marker_columns.label] = g_strdup(markid);
+        row[marker_columns.marker] = g_strdup(markid);
+        row[marker_columns.isstock] = isstock;
+        row[marker_columns.image] = prv;
+        row[marker_columns.history] = is_history;
+
+    }
+
+    sandbox->getRoot()->invoke_hide(visionkey);
+}
+
+/**
+ * Creates a copy of the marker named mname, determines its visible and renderable
+ * area in the bounding box, and then renders it.  This allows us to fill in
+ * preview images of each marker in the marker combobox.
+ */
+Gtk::Image *
+MarkerComboBox::create_marker_image(unsigned psize, gchar const *mname,
+                   SPDocument *source,  Inkscape::Drawing &drawing, unsigned /*visionkey*/)
+{
+    // Retrieve the marker named 'mname' from the source SVG document
+    SPObject const *marker = source->getObjectById(mname);
+    if (marker == NULL) {
+        return NULL;
+    }
+
+    // Create a copy repr of the marker with id="sample"
+    Inkscape::XML::Document *xml_doc = sandbox->getReprDoc();
+    Inkscape::XML::Node *mrepr = marker->getRepr()->duplicate(xml_doc);
+    mrepr->setAttribute("id", "sample");
+
+    // Replace the old sample in the sandbox by the new one
+    Inkscape::XML::Node *defsrepr = sandbox->getObjectById("defs")->getRepr();
+    SPObject *oldmarker = sandbox->getObjectById("sample");
+    if (oldmarker) {
+        oldmarker->deleteObject(false);
+    }
+
+    // TODO - This causes a SIGTRAP on windows
+    defsrepr->appendChild(mrepr);
+
+    Inkscape::GC::release(mrepr);
+
+// Uncomment this to get the sandbox documents saved (useful for debugging)
+    //FILE *fp = fopen (g_strconcat(combo_id, mname, ".svg", NULL), "w");
+    //sp_repr_save_stream(sandbox->getReprDoc(), fp);
+    //fclose (fp);
+
+    // object to render; note that the id is the same as that of the combo we're building
+    SPObject *object = sandbox->getObjectById(combo_id);
+    sandbox->getRoot()->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG);
+    sandbox->ensureUpToDate();
+
+    if (object == NULL || !SP_IS_ITEM(object)) {
+        return NULL; // sandbox broken?
+    }
+
+    SPItem *item = SP_ITEM(object);
+    // Find object's bbox in document
+    Geom::OptRect dbox = item->documentVisualBounds();
+
+    if (!dbox) {
+        return NULL;
+    }
+
+    /* Update to renderable state */
+    double sf = 0.8;
+
+    gchar *cache_name = g_strconcat(combo_id, mname, NULL);
+    Glib::ustring key = svg_preview_cache.cache_key(source->getURI(), cache_name, psize);
+    g_free (cache_name);
+    Glib::RefPtr<Gdk::Pixbuf> pixbuf = Glib::wrap(svg_preview_cache.get_preview_from_cache(key));
+
+    if (!pixbuf) {
+        pixbuf = Glib::wrap(render_pixbuf(drawing, sf, *dbox, psize));
+        svg_preview_cache.set_preview_in_cache(key, pixbuf->gobj());
+    }
+
+    // Create widget
+    Gtk::Image *pb = new Gtk::Image(pixbuf);
+
+    return pb;
+}
+
+void MarkerComboBox::prepareLabelRenderer( Gtk::TreeModel::const_iterator const &row ) {
+    Glib::ustring name=(*row)[marker_columns.label];
+    label_renderer.property_markup() = name.c_str();
+}
+
+void MarkerComboBox::prepareImageRenderer( Gtk::TreeModel::const_iterator const &row ) {
+
+    Gtk::Image *image = (*row)[marker_columns.image];
+    if (image)
+        image_renderer.property_pixbuf() = image->get_pixbuf();
+    else
+        image_renderer.property_pixbuf() = empty_image->get_pixbuf();
+}
+
+gboolean MarkerComboBox::separator_cb (GtkTreeModel *model, GtkTreeIter *iter, gpointer data) {
+
+    gboolean sep = FALSE;
+    gtk_tree_model_get(model, iter, 5, &sep, -1);
+    return sep;
+}
+
+/**
+ * Returns a new document containing default start, mid, and end markers.
+ */
+SPDocument *MarkerComboBox::ink_markers_preview_doc ()
+{
+gchar const *buffer = "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:sodipodi=\"http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd\" xmlns:inkscape=\"http://www.inkscape.org/namespaces/inkscape\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">"
+"  <defs id=\"defs\" />"
+
+"  <g id=\"marker-start\">"
+"    <path style=\"fill:none;stroke:black;stroke-width:1.7;marker-start:url(#sample);marker-mid:none;marker-end:none\""
+"       d=\"M 12.5,13 L 25,13\" id=\"path1\" />"
+"    <rect style=\"fill:none;stroke:none\" id=\"rect2\""
+"       width=\"25\" height=\"25\" x=\"0\" y=\"0\" />"
+"  </g>"
+
+"  <g id=\"marker-mid\">"
+"    <path style=\"fill:none;stroke:black;stroke-width:1.7;marker-start:none;marker-mid:url(#sample);marker-end:none\""
+"       d=\"M 0,113 L 12.5,113 L 25,113\" id=\"path11\" />"
+"    <rect style=\"fill:none;stroke:none\" id=\"rect22\""
+"       width=\"25\" height=\"25\" x=\"0\" y=\"100\" />"
+"  </g>"
+
+"  <g id=\"marker-end\">"
+"    <path style=\"fill:none;stroke:black;stroke-width:1.7;marker-start:none;marker-mid:none;marker-end:url(#sample)\""
+"       d=\"M 0,213 L 12.5,213\" id=\"path111\" />"
+"    <rect style=\"fill:none;stroke:none\" id=\"rect222\""
+"       width=\"25\" height=\"25\" x=\"0\" y=\"200\" />"
+"  </g>"
+
+"</svg>";
+
+    return SPDocument::createNewDocFromMem (buffer, strlen(buffer), FALSE);
+}
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :