moving trunk for module inkscape

(bzr r1)

1 files changed, 1439 insertions, 0 deletions

diff --git a/src/dialogs/filedialog.cpp b/src/dialogs/filedialog.cpp
new file mode 100644
index 000000000..bf9eaceb5
--- /dev/null
+++ b/src/dialogs/filedialog.cpp
@@ -0,0 +1,1439 @@
+/*
+ * Implementation of the file dialog interfaces defined in filedialog.h
+ *
+ * Authors:
+ *   Bob Jamison
+ *   Other dudes from The Inkscape Organization
+ *
+ * Copyright (C) 2004 The Inkscape Organization
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+
+
+//Temporary ugly hack
+//Remove these after the get_filter() calls in
+//show() on both classes are fixed
+#include <gtk/gtkfilechooser.h>
+
+//Another hack
+#include <gtk/gtkentry.h>
+#include <gtk/gtkexpander.h>
+
+#include <sys/stat.h>
+#include <glibmm/i18n.h>
+#include <gtkmm/box.h>
+#include <gtkmm/filechooserdialog.h>
+#include <gtkmm/menubar.h>
+#include <gtkmm/menu.h>
+#include <gtkmm/entry.h>
+#include <gtkmm/expander.h>
+#include <gtkmm/comboboxtext.h>
+#include <gtkmm/stock.h>
+#include <gdkmm/pixbuf.h>
+
+#include "prefs-utils.h"
+#include <dialogs/dialog-events.h>
+#include <extension/input.h>
+#include <extension/output.h>
+#include <extension/db.h>
+#include "inkscape.h"
+#include "svg-view-widget.h"
+#include "filedialog.h"
+
+#undef INK_DUMP_FILENAME_CONV
+
+#ifdef INK_DUMP_FILENAME_CONV
+void dump_str( const gchar* str, const gchar* prefix );
+void dump_ustr( const Glib::ustring& ustr );
+#endif
+
+namespace Inkscape {
+namespace UI {
+namespace Dialogs {
+
+void FileDialogExtensionToPattern (Glib::ustring &pattern, gchar * in_file_extension);
+
+/*#########################################################################
+### SVG Preview Widget
+#########################################################################*/
+/**
+ * Simple class for displaying an SVG file in the "preview widget."
+ * Currently, this is just a wrapper of the sp_svg_view Gtk widget.
+ * Hopefully we will eventually replace with a pure Gtkmm widget.
+ */
+class SVGPreview : public Gtk::VBox
+{
+public:
+    SVGPreview();
+    ~SVGPreview();
+
+    bool setDocument(SPDocument *doc);
+
+    bool setFileName(Glib::ustring &fileName);
+
+    bool setFromMem(char const *xmlBuffer);
+
+    bool set(Glib::ustring &fileName, int dialogType);
+
+    bool setURI(URI &uri);
+
+    /**
+     * Show image embedded in SVG
+     */
+    void showImage(Glib::ustring &fileName);
+
+    /**
+     * Show the "No preview" image
+     */
+    void showNoPreview();
+
+    /**
+     * Show the "Too large" image
+     */
+    void showTooLarge(long fileLength);
+
+private:
+    /**
+     * The svg document we are currently showing
+     */
+    SPDocument *document;
+
+    /**
+     * The sp_svg_view widget
+     */
+    GtkWidget *viewerGtk;
+
+    /**
+     * are we currently showing the "no preview" image?
+     */
+    bool showingNoPreview;
+
+};
+
+
+bool SVGPreview::setDocument(SPDocument *doc)
+{
+    if (document)
+        sp_document_unref(document);
+
+    sp_document_ref(doc);
+    document = doc;
+
+    //This should remove it from the box, and free resources
+    if (viewerGtk) {
+        gtk_widget_destroy(viewerGtk);
+    }
+
+    viewerGtk  = sp_svg_view_widget_new(doc);
+    GtkWidget *vbox = (GtkWidget *)gobj();
+    gtk_box_pack_start(GTK_BOX(vbox), viewerGtk, TRUE, TRUE, 0);
+    gtk_widget_show(viewerGtk);
+
+    return true;
+}
+
+bool SVGPreview::setFileName(Glib::ustring &theFileName)
+{
+    Glib::ustring fileName = theFileName;
+
+    fileName = Glib::filename_to_utf8(fileName);
+
+    SPDocument *doc = sp_document_new (fileName.c_str(), 0);
+    if (!doc) {
+        g_warning("SVGView: error loading document '%s'\n", fileName.c_str());
+        return false;
+    }
+
+    setDocument(doc);
+
+    sp_document_unref(doc);
+
+    return true;
+}
+
+
+
+bool SVGPreview::setFromMem(char const *xmlBuffer)
+{
+    if (!xmlBuffer)
+        return false;
+
+    gint len = (gint)strlen(xmlBuffer);
+    SPDocument *doc = sp_document_new_from_mem(xmlBuffer, len, 0);
+    if (!doc) {
+        g_warning("SVGView: error loading buffer '%s'\n",xmlBuffer);
+        return false;
+    }
+
+    setDocument(doc);
+
+    sp_document_unref(doc);
+
+    return true;
+}
+
+
+
+void SVGPreview::showImage(Glib::ustring &theFileName)
+{
+    Glib::ustring fileName = theFileName;
+
+
+    /*#####################################
+    # LET'S HAVE SOME FUN WITH SVG!
+    # Instead of just loading an image, why
+    # don't we make a lovely little svg and
+    # display it nicely?
+    #####################################*/
+
+    //Arbitrary size of svg doc -- rather 'portrait' shaped
+    gint previewWidth  = 400;
+    gint previewHeight = 600;
+
+    //Get some image info. Smart pointer does not need to be deleted
+    Glib::RefPtr<Gdk::Pixbuf> img = Gdk::Pixbuf::create_from_file(fileName);
+    gint imgWidth  = img->get_width();
+    gint imgHeight = img->get_height();
+
+    //Find the minimum scale to fit the image inside the preview area
+    double scaleFactorX = (0.9 *(double)previewWidth)  / ((double)imgWidth);
+    double scaleFactorY = (0.9 *(double)previewHeight) / ((double)imgHeight);
+    double scaleFactor = scaleFactorX;
+    if (scaleFactorX > scaleFactorY)
+        scaleFactor = scaleFactorY;
+
+    //Now get the resized values
+    gint scaledImgWidth  = (int) (scaleFactor * (double)imgWidth);
+    gint scaledImgHeight = (int) (scaleFactor * (double)imgHeight);
+
+    //center the image on the area
+    gint imgX = (previewWidth  - scaledImgWidth)  / 2;
+    gint imgY = (previewHeight - scaledImgHeight) / 2;
+
+    //wrap a rectangle around the image
+    gint rectX      = imgX-1;
+    gint rectY      = imgY-1;
+    gint rectWidth  = scaledImgWidth +2;
+    gint rectHeight = scaledImgHeight+2;
+
+    //Our template.  Modify to taste
+    gchar const *xformat =
+          "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
+          "<svg\n"
+          "xmlns=\"http://www.w3.org/2000/svg\"\n"
+          "xmlns:xlink=\"http://www.w3.org/1999/xlink\"\n"
+          "width=\"%d\" height=\"%d\">\n"
+          "<rect\n"
+          "  style=\"fill:#eeeeee;stroke:none\"\n"
+          "  x=\"-100\" y=\"-100\" width=\"4000\" height=\"4000\"/>\n"
+          "<image x=\"%d\" y=\"%d\" width=\"%d\" height=\"%d\"\n"
+          "xlink:href=\"%s\"/>\n"
+          "<rect\n"
+          "  style=\"fill:none;"
+          "    stroke:#000000;stroke-width:1.0;"
+          "    stroke-linejoin:miter;stroke-opacity:1.0000000;"
+          "    stroke-miterlimit:4.0000000;stroke-dasharray:none\"\n"
+          "  x=\"%d\" y=\"%d\" width=\"%d\" height=\"%d\"/>\n"
+          "<text\n"
+          "  style=\"font-size:24.000000;font-style:normal;font-weight:normal;"
+          "    fill:#000000;fill-opacity:1.0000000;stroke:none;"
+          "    font-family:Bitstream Vera Sans\"\n"
+          "  x=\"10\" y=\"26\">%d x %d</text>\n"
+          "</svg>\n\n";
+
+    //if (!Glib::get_charset()) //If we are not utf8
+    fileName = Glib::filename_to_utf8(fileName);
+
+    //Fill in the template
+    /* FIXME: Do proper XML quoting for fileName. */
+    gchar *xmlBuffer = g_strdup_printf(xformat,
+           previewWidth, previewHeight,
+           imgX, imgY, scaledImgWidth, scaledImgHeight,
+           fileName.c_str(),
+           rectX, rectY, rectWidth, rectHeight,
+           imgWidth, imgHeight);
+
+    //g_message("%s\n", xmlBuffer);
+
+    //now show it!
+    setFromMem(xmlBuffer);
+    g_free(xmlBuffer);
+}
+
+
+
+void SVGPreview::showNoPreview()
+{
+    //Are we already showing it?
+    if (showingNoPreview)
+        return;
+
+    //Arbitrary size of svg doc -- rather 'portrait' shaped
+    gint previewWidth  = 300;
+    gint previewHeight = 600;
+
+    //Our template.  Modify to taste
+    gchar const *xformat =
+          "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
+          "<svg\n"
+          "xmlns=\"http://www.w3.org/2000/svg\"\n"
+          "xmlns:xlink=\"http://www.w3.org/1999/xlink\"\n"
+          "width=\"%d\" height=\"%d\">\n"
+          "<g transform=\"translate(-190,24.27184)\" style=\"opacity:0.12\">\n"
+          "<path\n"
+          "style=\"font-size:12;fill:#ffffff;fill-rule:evenodd;stroke:#000000;stroke-width:0.936193pt\"\n"
+          "d=\"M 397.64309 320.25301 L 280.39197 282.517 L 250.74227 124.83447 L 345.08225 "
+          "29.146783 L 393.59996 46.667064 L 483.89679 135.61619 L 397.64309 320.25301 z \"\n"
+          "id=\"whiteSpace\" />\n"
+          "<path\n"
+          "style=\"font-size:12;fill-rule:evenodd;stroke-width:1pt;fill:#000000;fill-opacity:1\"\n"
+          "d=\"M 476.95792 339.17168 C 495.78197 342.93607 499.54842 356.11361 495.78197 359.87802 "
+          "C 492.01856 363.6434 482.6065 367.40781 475.07663 361.76014 C 467.54478 "
+          "356.11361 467.54478 342.93607 476.95792 339.17168 z \"\n"
+          "id=\"droplet01\" />\n"
+          "<path\n"
+          "style=\"font-size:12;fill-rule:evenodd;stroke-width:1pt;fill:#000000;fill-opacity:1\"\n"
+          "d=\"M 286.46194 340.42914 C 284.6277 340.91835 269.30405 327.71337 257.16909 333.8338 "
+          "C 245.03722 339.95336 236.89276 353.65666 248.22676 359.27982 C 259.56184 364.90298 "
+          "267.66433 358.41867 277.60113 351.44119 C 287.53903 344.46477 "
+          "287.18046 343.1206 286.46194 340.42914 z \"\n"
+          "id=\"droplet02\" />\n"
+          "<path\n"
+          "style=\"font-size:12;fill-rule:evenodd;stroke-width:1pt;fill:#000000;fill-opacity:1\"\n"
+          "d=\"M 510.35756 306.92856 C 520.59494 304.36879 544.24333 306.92856 540.47688 321.98634 "
+          "C 536.71354 337.04806 504.71297 331.39827 484.00371 323.87156 C 482.12141 "
+          "308.81083 505.53237 308.13423 510.35756 306.92856 z \"\n"
+          "id=\"droplet03\" />\n"
+          "<path\n"
+          "style=\"font-size:12;fill-rule:evenodd;stroke-width:1pt;fill:#000000;fill-opacity:1\"\n"
+          "d=\"M 359.2403 21.362537 C 347.92693 21.362537 336.6347 25.683095 327.96556 34.35223 "
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+          "378.72118 345.40201 362.67257 337.5908 396.16198 C 354.92909 413.50026 391.10302 "
+          "405.2208 415.32417 387.88252 C 428.16323 375.04345 390.6948 376.17577 403.53397 "
+          "363.33668 C 416.37304 350.49745 448.78128 350.4282 476.08902 319.71589 C 465.09739 "
+          "302.62116 429.10801 295.34136 441.94719 282.50217 C 454.78625 269.66311 479.74708 "
+          "276.18423 533.60644 251.72479 C 559.89837 239.78398 557.72636 230.71459 557.62567 "
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+          "219.04577 C 557.3983 207.95812 553.10345 196.9114 544.60673 188.41466 L 390.54428 "
+          "34.35223 C 381.87515 25.683095 370.55366 21.362537 359.2403 21.362537 z M 357.92378 "
+          "41.402939 C 362.95327 41.533963 367.01541 45.368018 374.98006 50.530832 L 447.76915 "
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+          "109.62808 C 454.08837 110.24052 454.53956 110.86661 454.93688 111.50048 C 455.33532 112.13538 "
+          "455.69164 112.78029 455.9901 113.43137 C 456.28877 114.08363 456.52291 114.75639 456.7215 "
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+          "118.08184 457.33588 118.75535 457.33588 119.42886 L 414.21245 98.598549 L 409.9118 "
+          "131.16055 L 386.18512 120.04324 L 349.55654 144.50131 L 335.54288 96.1703 L 317.4919 "
+          "138.4453 L 267.08369 143.47735 L 267.63956 121.03795 C 267.63956 115.64823 296.69685 "
+          "77.915899 314.39075 68.932902 L 346.77721 45.674327 C 351.55594 42.576634 354.90608 "
+          "41.324327 357.92378 41.402939 z M 290.92738 261.61333 C 313.87149 267.56365 339.40299 "
+          "275.37038 359.88393 275.50997 L 360.76161 284.72563 C 343.2235 282.91785 306.11346 "
+          "274.45012 297.36372 269.98057 L 290.92738 261.61333 z \"\n"
+          "id=\"mountainDroplet\" />\n"
+          "</g> <g transform=\"translate(-20,0)\">\n"
+          "<text xml:space=\"preserve\"\n"
+          "style=\"font-size:32.000000;font-style:normal;font-variant:normal;font-weight:bold;"
+          "font-stretch:normal;fill:#000000;fill-opacity:1.0000000;stroke:none;stroke-width:1.0000000pt;"
+          "stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1.0000000;"
+          "font-family:Bitstream Vera Sans;text-anchor:middle;writing-mode:lr\"\n"
+          "x=\"190\" y=\"240\">%s</text></g>\n"
+          "</svg>\n\n";
+
+    //Fill in the template
+    gchar *xmlBuffer = g_strdup_printf(xformat,
+           previewWidth, previewHeight, _("No preview"));
+
+    //g_message("%s\n", xmlBuffer);
+
+    //now show it!
+    setFromMem(xmlBuffer);
+    g_free(xmlBuffer);
+    showingNoPreview = true;
+
+}
+
+void SVGPreview::showTooLarge(long fileLength)
+{
+
+    //Arbitrary size of svg doc -- rather 'portrait' shaped
+    gint previewWidth  = 300;
+    gint previewHeight = 600;
+
+    //Our template.  Modify to taste
+    gchar const *xformat =
+          "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
+          "<svg\n"
+          "xmlns=\"http://www.w3.org/2000/svg\"\n"
+          "xmlns:xlink=\"http://www.w3.org/1999/xlink\"\n"
+          "width=\"%d\" height=\"%d\">\n"
+          "<g transform=\"translate(-170,24.27184)\" style=\"opacity:0.12\">\n"
+          "<path\n"
+          "style=\"font-size:12;fill:#ffffff;fill-rule:evenodd;stroke:#000000;stroke-width:0.936193pt\"\n"
+          "d=\"M 397.64309 320.25301 L 280.39197 282.517 L 250.74227 124.83447 L 345.08225 "
+          "29.146783 L 393.59996 46.667064 L 483.89679 135.61619 L 397.64309 320.25301 z \"\n"
+          "id=\"whiteSpace\" />\n"
+          "<path\n"
+          "style=\"font-size:12;fill-rule:evenodd;stroke-width:1pt;fill:#000000;fill-opacity:1\"\n"
+          "d=\"M 476.95792 339.17168 C 495.78197 342.93607 499.54842 356.11361 495.78197 359.87802 "
+          "C 492.01856 363.6434 482.6065 367.40781 475.07663 361.76014 C 467.54478 "
+          "356.11361 467.54478 342.93607 476.95792 339.17168 z \"\n"
+          "id=\"droplet01\" />\n"
+          "<path\n"
+          "style=\"font-size:12;fill-rule:evenodd;stroke-width:1pt;fill:#000000;fill-opacity:1\"\n"
+          "d=\"M 286.46194 340.42914 C 284.6277 340.91835 269.30405 327.71337 257.16909 333.8338 "
+          "C 245.03722 339.95336 236.89276 353.65666 248.22676 359.27982 C 259.56184 364.90298 "
+          "267.66433 358.41867 277.60113 351.44119 C 287.53903 344.46477 "
+          "287.18046 343.1206 286.46194 340.42914 z \"\n"
+          "id=\"droplet02\" />\n"
+          "<path\n"
+          "style=\"font-size:12;fill-rule:evenodd;stroke-width:1pt;fill:#000000;fill-opacity:1\"\n"
+          "d=\"M 510.35756 306.92856 C 520.59494 304.36879 544.24333 306.92856 540.47688 321.98634 "
+          "C 536.71354 337.04806 504.71297 331.39827 484.00371 323.87156 C 482.12141 "
+          "308.81083 505.53237 308.13423 510.35756 306.92856 z \"\n"
+          "id=\"droplet03\" />\n"
+          "<path\n"
+          "style=\"font-size:12;fill-rule:evenodd;stroke-width:1pt;fill:#000000;fill-opacity:1\"\n"
+          "d=\"M 359.2403 21.362537 C 347.92693 21.362537 336.6347 25.683095 327.96556 34.35223 "
+          "L 173.87387 188.41466 C 165.37697 196.9114 161.1116 207.95813 160.94269 219.04577 "
+          "L 160.88418 219.04577 C 160.88418 219.08524 160.94076 219.12322 160.94269 219.16279 "
+          "C 160.94033 219.34888 160.88418 219.53256 160.88418 219.71865 L 161.14748 219.71865 "
+          "C 164.0966 230.93917 240.29699 245.24198 248.79866 253.74346 C 261.63771 266.58263 "
+          "199.5652 276.01151 212.4041 288.85074 C 225.24316 301.68979 289.99433 313.6933 302.8346 "
+          "326.53254 C 315.67368 339.37161 276.5961 353.04289 289.43532 365.88196 C 302.27439 "
+          "378.72118 345.40201 362.67257 337.5908 396.16198 C 354.92909 413.50026 391.10302 "
+          "405.2208 415.32417 387.88252 C 428.16323 375.04345 390.6948 376.17577 403.53397 "
+          "363.33668 C 416.37304 350.49745 448.78128 350.4282 476.08902 319.71589 C 465.09739 "
+          "302.62116 429.10801 295.34136 441.94719 282.50217 C 454.78625 269.66311 479.74708 "
+          "276.18423 533.60644 251.72479 C 559.89837 239.78398 557.72636 230.71459 557.62567 "
+          "219.71865 C 557.62356 219.48727 557.62567 219.27892 557.62567 219.04577 L 557.56716 "
+          "219.04577 C 557.3983 207.95812 553.10345 196.9114 544.60673 188.41466 L 390.54428 "
+          "34.35223 C 381.87515 25.683095 370.55366 21.362537 359.2403 21.362537 z M 357.92378 "
+          "41.402939 C 362.95327 41.533963 367.01541 45.368018 374.98006 50.530832 L 447.76915 "
+          "104.50827 C 448.56596 105.02498 449.32484 105.564 450.02187 106.11735 C 450.7189 106.67062 "
+          "451.3556 107.25745 451.95277 107.84347 C 452.54997 108.42842 453.09281 109.01553 453.59111 "
+          "109.62808 C 454.08837 110.24052 454.53956 110.86661 454.93688 111.50048 C 455.33532 112.13538 "
+          "455.69164 112.78029 455.9901 113.43137 C 456.28877 114.08363 456.52291 114.75639 456.7215 "
+          "115.42078 C 456.92126 116.08419 457.08982 116.73973 457.18961 117.41019 C 457.28949 "
+          "118.08184 457.33588 118.75535 457.33588 119.42886 L 414.21245 98.598549 L 409.9118 "
+          "131.16055 L 386.18512 120.04324 L 349.55654 144.50131 L 335.54288 96.1703 L 317.4919 "
+          "138.4453 L 267.08369 143.47735 L 267.63956 121.03795 C 267.63956 115.64823 296.69685 "
+          "77.915899 314.39075 68.932902 L 346.77721 45.674327 C 351.55594 42.576634 354.90608 "
+          "41.324327 357.92378 41.402939 z M 290.92738 261.61333 C 313.87149 267.56365 339.40299 "
+          "275.37038 359.88393 275.50997 L 360.76161 284.72563 C 343.2235 282.91785 306.11346 "
+          "274.45012 297.36372 269.98057 L 290.92738 261.61333 z \"\n"
+          "id=\"mountainDroplet\" />\n"
+          "</g>\n"
+          "<text xml:space=\"preserve\"\n"
+          "style=\"font-size:32.000000;font-style:normal;font-variant:normal;font-weight:bold;"
+          "font-stretch:normal;fill:#000000;fill-opacity:1.0000000;stroke:none;stroke-width:1.0000000pt;"
+          "stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1.0000000;"
+          "font-family:Bitstream Vera Sans;text-anchor:middle;writing-mode:lr\"\n"
+          "x=\"170\" y=\"215\">%5.1f MB</text>\n"
+          "<text xml:space=\"preserve\"\n"
+          "style=\"font-size:24.000000;font-style:normal;font-variant:normal;font-weight:bold;"
+          "font-stretch:normal;fill:#000000;fill-opacity:1.0000000;stroke:none;stroke-width:1.0000000pt;"
+          "stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1.0000000;"
+          "font-family:Bitstream Vera Sans;text-anchor:middle;writing-mode:lr\"\n"
+          "x=\"180\" y=\"245\">%s</text>\n"
+          "</svg>\n\n";
+
+    //Fill in the template
+    double floatFileLength = ((double)fileLength) / 1048576.0;
+    //printf("%ld %f\n", fileLength, floatFileLength);
+    gchar *xmlBuffer = g_strdup_printf(xformat,
+           previewWidth, previewHeight, floatFileLength,
+           _("too large for preview"));
+
+    //g_message("%s\n", xmlBuffer);
+
+    //now show it!
+    setFromMem(xmlBuffer);
+    g_free(xmlBuffer);
+
+}
+
+static bool
+hasSuffix(Glib::ustring &str, Glib::ustring &ext)
+{
+    int strLen = str.length();
+    int extLen = ext.length();
+    if (extLen > strLen)
+    {
+        return false;
+    }
+    int strpos = strLen-1;
+    for (int extpos = extLen-1 ; extpos>=0 ; extpos--, strpos--)
+    {
+        Glib::ustring::value_type ch = str[strpos];
+        if (ch != ext[extpos])
+        {
+            if ( ((ch & 0xff80) != 0) ||
+                 static_cast<Glib::ustring::value_type>( g_ascii_tolower( static_cast<gchar>(0x07f & ch) ) ) != ext[extpos] )
+            {
+                return false;
+            }
+        }
+    }
+    return true;
+}
+
+
+/**
+ * Return true if the image is loadable by Gdk, else false
+ */
+static bool
+isValidImageFile(Glib::ustring &fileName)
+{
+    std::vector<Gdk::PixbufFormat>formats = Gdk::Pixbuf::get_formats();
+    for (unsigned int i=0; i<formats.size(); i++)
+        {
+        Gdk::PixbufFormat format = formats[i];
+        std::vector<Glib::ustring>extensions = format.get_extensions();
+        for (unsigned int j=0; j<extensions.size(); j++)
+            {
+            Glib::ustring ext = extensions[j];
+            if (hasSuffix(fileName, ext))
+                {
+                return true;
+                }
+            }
+        }
+    return false;
+}
+
+bool SVGPreview::set(Glib::ustring &fileName, int dialogType)
+{
+
+    if (!Glib::file_test(fileName, Glib::FILE_TEST_EXISTS))
+        return false;
+
+    gchar *fName = (gchar *)fileName.c_str();
+    //g_message("fname:%s\n", fName);
+
+
+    if (Glib::file_test(fileName, Glib::FILE_TEST_IS_REGULAR))
+        {
+        struct stat info;
+        if (stat(fName, &info))
+            {
+            return FALSE;
+            }
+        long fileLen = info.st_size;
+        if (fileLen > 0x150000L)
+            {
+            showingNoPreview = false;
+            showTooLarge(fileLen);
+            return FALSE;
+            }
+        }
+
+    Glib::ustring svg = ".svg";
+    Glib::ustring svgz = ".svgz";
+
+    if ((dialogType == SVG_TYPES || dialogType == IMPORT_TYPES) &&
+           (hasSuffix(fileName, svg) || hasSuffix(fileName, svgz)   )
+         )
+        {
+        bool retval = setFileName(fileName);
+        showingNoPreview = false;
+        return retval;
+        }
+    else if (isValidImageFile(fileName))
+        {
+        showImage(fileName);
+        showingNoPreview = false;
+        return true;
+        }
+    else
+        {
+        showNoPreview();
+        return false;
+        }
+}
+
+
+SVGPreview::SVGPreview()
+{
+    if (!INKSCAPE)
+        inkscape_application_init("",false);
+    document = NULL;
+    viewerGtk = NULL;
+    set_size_request(150,150);
+    showingNoPreview = false;
+}
+
+SVGPreview::~SVGPreview()
+{
+
+}
+
+
+
+
+
+/*#########################################################################
+### F I L E    O P E N
+#########################################################################*/
+
+/**
+ * Our implementation class for the FileOpenDialog interface..
+ */
+class FileOpenDialogImpl : public FileOpenDialog, public Gtk::FileChooserDialog
+{
+public:
+    FileOpenDialogImpl(char const *dir,
+                       FileDialogType fileTypes,
+                       char const *title);
+
+    virtual ~FileOpenDialogImpl();
+
+    bool show();
+
+    Inkscape::Extension::Extension *getSelectionType();
+
+    gchar *getFilename();
+
+    Glib::SListHandle<Glib::ustring> getFilenames ();
+protected:
+
+
+
+private:
+
+
+    /**
+     * What type of 'open' are we? (open, import, place, etc)
+     */
+    FileDialogType dialogType;
+
+    /**
+     * Our svg preview widget
+     */
+    SVGPreview svgPreview;
+
+    /**
+     * Callback for seeing if the preview needs to be drawn
+     */
+    void updatePreviewCallback();
+
+    /**
+     * Fix to allow the user to type the file name
+     */
+    Gtk::Entry fileNameEntry;
+
+    /**
+     *  Create a filter menu for this type of dialog
+     */
+    void createFilterMenu();
+
+    /**
+     * Callback for user input into fileNameEntry
+     */
+    void fileNameEntryChangedCallback();
+
+    /**
+     * Callback for user changing which item is selected on the list
+     */
+    void fileSelectedCallback();
+
+
+    /**
+     * Filter name->extension lookup
+     */
+    std::map<Glib::ustring, Inkscape::Extension::Extension *> extensionMap;
+
+    /**
+     * The extension to use to write this file
+     */
+    Inkscape::Extension::Extension *extension;
+
+    /**
+     * Filename that was given
+     */
+    Glib::ustring myFilename;
+
+};
+
+
+
+
+
+/**
+ * Callback for checking if the preview needs to be redrawn
+ */
+void FileOpenDialogImpl::updatePreviewCallback()
+{
+    Glib::ustring fileName = get_preview_filename();
+
+    if (fileName.length() < 1)
+        return;
+
+    svgPreview.set(fileName, dialogType);
+}
+
+
+
+
+
+/**
+ * Callback for fileNameEntry widget
+ */
+void FileOpenDialogImpl::fileNameEntryChangedCallback()
+{
+    Glib::ustring fileName = fileNameEntry.get_text();
+
+    // TODO remove this leak
+    fileName = Glib::filename_from_utf8(fileName);
+
+    //g_message("User hit return.  Text is '%s'\n", fName.c_str());
+
+    if (!Glib::path_is_absolute(fileName)) {
+        //try appending to the current path
+        // not this way: fileName = get_current_folder() + "/" + fName;
+        std::vector<Glib::ustring> pathSegments;
+        pathSegments.push_back( get_current_folder() );
+        pathSegments.push_back( fileName );
+        fileName = Glib::build_filename(pathSegments);
+    }
+
+    //g_message("path:'%s'\n", fName.c_str());
+
+    if (Glib::file_test(fileName, Glib::FILE_TEST_IS_DIR)) {
+        set_current_folder(fileName);
+    } else if (Glib::file_test(fileName, Glib::FILE_TEST_IS_REGULAR)) {
+        //dialog with either (1) select a regular file or (2) cd to dir
+        //simulate an 'OK'
+        set_filename(fileName);
+        response(Gtk::RESPONSE_OK);
+    }
+}
+
+
+
+
+
+/**
+ * Callback for fileNameEntry widget
+ */
+void FileOpenDialogImpl::fileSelectedCallback()
+{
+    Glib::ustring fileName     = get_filename();
+    if (!Glib::get_charset()) //If we are not utf8
+        fileName = Glib::filename_to_utf8(fileName);
+    //g_message("User selected '%s'\n",
+    //       filename().c_str());
+
+#ifdef INK_DUMP_FILENAME_CONV
+    ::dump_ustr( get_filename() );
+#endif
+    fileNameEntry.set_text(fileName);
+}
+
+
+
+
+void FileOpenDialogImpl::createFilterMenu()
+{
+    //patterns added dynamically below
+    Gtk::FileFilter allImageFilter;
+    allImageFilter.set_name(_("All Images"));
+    extensionMap[Glib::ustring(_("All Images"))]=NULL;
+    add_filter(allImageFilter);
+
+    Gtk::FileFilter allFilter;
+    allFilter.set_name(_("All Files"));
+    extensionMap[Glib::ustring(_("All Files"))]=NULL;
+    allFilter.add_pattern("*");
+    add_filter(allFilter);
+
+    //patterns added dynamically below
+    Gtk::FileFilter allInkscapeFilter;
+    allInkscapeFilter.set_name(_("All Inkscape Files"));
+    extensionMap[Glib::ustring(_("All Inkscape Files"))]=NULL;
+    add_filter(allInkscapeFilter);
+
+    Inkscape::Extension::DB::InputList extension_list;
+    Inkscape::Extension::db.get_input_list(extension_list);
+
+    for (Inkscape::Extension::DB::InputList::iterator current_item = extension_list.begin();
+         current_item != extension_list.end(); current_item++)
+    {
+        Inkscape::Extension::Input * imod = *current_item;
+
+        // FIXME: would be nice to grey them out instead of not listing them
+        if (imod->deactivated()) continue;
+
+        Glib::ustring upattern("*");
+        FileDialogExtensionToPattern (upattern, imod->get_extension());
+
+        Gtk::FileFilter filter;
+        Glib::ustring uname(_(imod->get_filetypename()));
+        filter.set_name(uname);
+        filter.add_pattern(upattern);
+        add_filter(filter);
+        extensionMap[uname] = imod;
+
+        //g_message("ext %s:%s '%s'\n", ioext->name, ioext->mimetype, upattern.c_str());
+        allInkscapeFilter.add_pattern(upattern);
+        if ( strncmp("image", imod->get_mimetype(), 5)==0 )
+            allImageFilter.add_pattern(upattern);
+    }
+
+    return;
+}
+
+
+
+/**
+ * Constructor.  Not called directly.  Use the factory.
+ */
+FileOpenDialogImpl::FileOpenDialogImpl(char const *dir,
+                                       FileDialogType fileTypes,
+                                       char const *title) :
+                 Gtk::FileChooserDialog(Glib::ustring(title))
+{
+
+
+    /* One file at a time */
+    /* And also Multiple Files */
+    set_select_multiple(true);
+
+    /* Initalize to Autodetect */
+    extension = NULL;
+    /* No filename to start out with */
+    myFilename = "";
+
+    /* Set our dialog type (open, import, etc...)*/
+    dialogType = fileTypes;
+
+
+    /* Set the pwd and/or the filename */
+    if (dir != NULL)
+    {
+        Glib::ustring udir(dir);
+        Glib::ustring::size_type len = udir.length();
+        // leaving a trailing backslash on the directory name leads to the infamous
+        // double-directory bug on win32
+        if (len != 0 && udir[len - 1] == '\\') udir.erase(len - 1);
+        set_current_folder(udir.c_str());
+    }
+
+    //###### Add the file types menu
+    createFilterMenu();
+
+    //###### Add a preview widget
+    set_preview_widget(svgPreview);
+    set_preview_widget_active(true);
+    set_use_preview_label (false);
+
+    //Catch selection-changed events, so we can adjust the text widget
+    signal_update_preview().connect(
+         sigc::mem_fun(*this, &FileOpenDialogImpl::updatePreviewCallback) );
+
+
+    //###### Add a text entry bar, and tie it to file chooser events
+    fileNameEntry.set_text(get_current_folder());
+    set_extra_widget(fileNameEntry);
+    fileNameEntry.grab_focus();
+
+    //Catch when user hits [return] on the text field
+    fileNameEntry.signal_activate().connect(
+         sigc::mem_fun(*this, &FileOpenDialogImpl::fileNameEntryChangedCallback) );
+
+    //Catch selection-changed events, so we can adjust the text widget
+    signal_selection_changed().connect(
+         sigc::mem_fun(*this, &FileOpenDialogImpl::fileSelectedCallback) );
+
+    add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
+    add_button(Gtk::Stock::OPEN,   Gtk::RESPONSE_OK);
+
+}
+
+
+
+
+
+/**
+ * Public factory.  Called by file.cpp, among others.
+ */
+FileOpenDialog *FileOpenDialog::create(char const *path,
+                                       FileDialogType fileTypes,
+                                       char const *title)
+{
+    FileOpenDialog *dialog = new FileOpenDialogImpl(path, fileTypes, title);
+    return dialog;
+}
+
+
+
+
+/**
+ * Destructor
+ */
+FileOpenDialogImpl::~FileOpenDialogImpl()
+{
+
+}
+
+
+/**
+ * Show this dialog modally.  Return true if user hits [OK]
+ */
+bool
+FileOpenDialogImpl::show()
+{
+    set_current_folder(get_current_folder()); //hack to force initial dir listing
+    set_modal (TRUE);                      //Window
+    sp_transientize((GtkWidget *)gobj());  //Make transient
+    gint b = run();                        //Dialog
+    hide();
+
+    if (b == Gtk::RESPONSE_OK)
+        {
+        //This is a hack, to avoid the warning messages that
+        //Gtk::FileChooser::get_filter() returns
+        //should be:  Gtk::FileFilter *filter = get_filter();
+        GtkFileChooser *gtkFileChooser = Gtk::FileChooser::gobj();
+        GtkFileFilter *filter = gtk_file_chooser_get_filter(gtkFileChooser);
+        if (filter)
+            {
+            //Get which extension was chosen, if any
+            extension = extensionMap[gtk_file_filter_get_name(filter)];
+            }
+        myFilename = get_filename();
+        return TRUE;
+        }
+    else
+       {
+       return FALSE;
+       }
+}
+
+
+
+
+/**
+ * Get the file extension type that was selected by the user. Valid after an [OK]
+ */
+Inkscape::Extension::Extension *
+FileOpenDialogImpl::getSelectionType()
+{
+    return extension;
+}
+
+
+/**
+ * Get the file name chosen by the user.   Valid after an [OK]
+ */
+gchar *
+FileOpenDialogImpl::getFilename (void)
+{
+    return g_strdup(myFilename.c_str());
+}
+
+
+/**
+ * To Get Multiple filenames selected at-once.
+ */
+Glib::SListHandle<Glib::ustring>FileOpenDialogImpl::getFilenames()
+{    
+    return get_filenames();
+}
+
+
+
+
+
+
+/*#########################################################################
+# F I L E    S A V E
+#########################################################################*/
+
+class FileType
+{
+    public:
+    FileType() {}
+    ~FileType() {}
+    Glib::ustring name;
+    Glib::ustring pattern;
+    Inkscape::Extension::Extension *extension;
+};
+
+/**
+ * Our implementation of the FileSaveDialog interface.
+ */
+class FileSaveDialogImpl : public FileSaveDialog, public Gtk::FileChooserDialog
+{
+
+public:
+    FileSaveDialogImpl(char const *dir,
+                       FileDialogType fileTypes,
+                       char const *title,
+                       char const *default_key);
+
+    virtual ~FileSaveDialogImpl();
+
+    bool show();
+
+    Inkscape::Extension::Extension *getSelectionType();
+
+    gchar *getFilename();
+
+
+private:
+
+    /**
+     * What type of 'open' are we? (save, export, etc)
+     */
+    FileDialogType dialogType;
+
+    /**
+     * Our svg preview widget
+     */
+    SVGPreview svgPreview;
+
+    /**
+     * Fix to allow the user to type the file name
+     */
+    Gtk::Entry *fileNameEntry;
+
+    /**
+     * Callback for seeing if the preview needs to be drawn
+     */
+    void updatePreviewCallback();
+
+
+
+    /**
+     * Allow the specification of the output file type
+     */
+    Gtk::HBox fileTypeBox;
+
+    /**
+     * Allow the specification of the output file type
+     */
+    Gtk::ComboBoxText fileTypeComboBox;
+
+
+    /**
+     *  Data mirror of the combo box
+     */
+    std::vector<FileType> fileTypes;
+
+    //# Child widgets
+    Gtk::CheckButton fileTypeCheckbox;
+
+
+    /**
+     * Callback for user input into fileNameEntry
+     */
+    void fileTypeChangedCallback();
+
+    /**
+     *  Create a filter menu for this type of dialog
+     */
+    void createFileTypeMenu();
+
+
+    bool append_extension;
+
+    /**
+     * The extension to use to write this file
+     */
+    Inkscape::Extension::Extension *extension;
+
+    /**
+     * Callback for user input into fileNameEntry
+     */
+    void fileNameEntryChangedCallback();
+
+    /**
+     * Filename that was given
+     */
+    Glib::ustring myFilename;
+};
+
+
+
+
+
+
+/**
+ * Callback for checking if the preview needs to be redrawn
+ */
+void FileSaveDialogImpl::updatePreviewCallback()
+{
+    Glib::ustring fileName = get_preview_filename();
+    if (!fileName.c_str())
+        return;
+    bool retval = svgPreview.set(fileName, dialogType);
+    set_preview_widget_active(retval);
+}
+
+
+
+/**
+ * Callback for fileNameEntry widget
+ */
+void FileSaveDialogImpl::fileNameEntryChangedCallback()
+{
+    if (!fileNameEntry)
+        return;
+
+    Glib::ustring fileName = fileNameEntry->get_text();
+    if (!Glib::get_charset()) //If we are not utf8
+        fileName = Glib::filename_to_utf8(fileName);
+
+    //g_message("User hit return.  Text is '%s'\n", fileName.c_str());
+
+    if (!Glib::path_is_absolute(fileName)) {
+        //try appending to the current path
+        // not this way: fileName = get_current_folder() + "/" + fileName;
+        std::vector<Glib::ustring> pathSegments;
+        pathSegments.push_back( get_current_folder() );
+        pathSegments.push_back( fileName );
+        fileName = Glib::build_filename(pathSegments);
+    }
+
+    //g_message("path:'%s'\n", fileName.c_str());
+
+    if (Glib::file_test(fileName, Glib::FILE_TEST_IS_DIR)) {
+        set_current_folder(fileName);
+    } else if (/*Glib::file_test(fileName, Glib::FILE_TEST_IS_REGULAR)*/1) {
+        //dialog with either (1) select a regular file or (2) cd to dir
+        //simulate an 'OK'
+        set_filename(fileName);
+        response(Gtk::RESPONSE_OK);
+    }
+}
+
+
+
+/**
+ * Callback for fileNameEntry widget
+ */
+void FileSaveDialogImpl::fileTypeChangedCallback()
+{
+    int sel = fileTypeComboBox.get_active_row_number();
+    if (sel<0 || sel >= (int)fileTypes.size())
+        return;
+    FileType type = fileTypes[sel];
+    //g_message("selected: %s\n", type.name.c_str());
+    Gtk::FileFilter filter;
+    filter.add_pattern(type.pattern);
+    set_filter(filter);
+}
+
+
+
+void FileSaveDialogImpl::createFileTypeMenu()
+{
+    Inkscape::Extension::DB::OutputList extension_list;
+    Inkscape::Extension::db.get_output_list(extension_list);
+
+    for (Inkscape::Extension::DB::OutputList::iterator current_item = extension_list.begin();
+         current_item != extension_list.end(); current_item++)
+    {
+        Inkscape::Extension::Output * omod = *current_item;
+
+        // FIXME: would be nice to grey them out instead of not listing them
+        if (omod->deactivated()) continue;
+
+        FileType type;
+        type.name     = (_(omod->get_filetypename()));
+        type.pattern  = "*";
+        FileDialogExtensionToPattern (type.pattern, omod->get_extension());
+        type.extension= omod;
+        fileTypeComboBox.append_text(type.name);
+        fileTypes.push_back(type);
+    }
+
+    //#Let user choose
+    FileType guessType;
+    guessType.name = _("Guess from extension");
+    guessType.pattern = "*";
+    guessType.extension = NULL;
+    fileTypeComboBox.append_text(guessType.name);
+    fileTypes.push_back(guessType);
+
+
+    fileTypeComboBox.set_active(0);
+    fileTypeChangedCallback(); //call at least once to set the filter
+}
+
+
+void findEntryWidgets(Gtk::Container *parent, std::vector<Gtk::Entry *> &result)
+{
+    if (!parent)
+        return;
+    std::vector<Gtk::Widget *> children = parent->get_children();
+    for (unsigned int i=0; i<children.size() ; i++)
+        {
+        Gtk::Widget *child = children[i];
+        GtkWidget *wid = child->gobj();
+        if (GTK_IS_ENTRY(wid))
+           result.push_back((Gtk::Entry *)child);
+        else if (GTK_IS_CONTAINER(wid))
+            findEntryWidgets((Gtk::Container *)child, result);
+        }
+
+}
+
+void findExpanderWidgets(Gtk::Container *parent, std::vector<Gtk::Expander *> &result)
+{
+    if (!parent)
+        return;
+    std::vector<Gtk::Widget *> children = parent->get_children();
+    for (unsigned int i=0; i<children.size() ; i++)
+        {
+        Gtk::Widget *child = children[i];
+        GtkWidget *wid = child->gobj();
+        if (GTK_IS_EXPANDER(wid))
+           result.push_back((Gtk::Expander *)child);
+        else if (GTK_IS_CONTAINER(wid))
+            findExpanderWidgets((Gtk::Container *)child, result);
+        }
+
+}
+
+
+/**
+ * Constructor
+ */
+FileSaveDialogImpl::FileSaveDialogImpl(char const *dir,
+                                       FileDialogType fileTypes,
+                                       char const *title,
+                                       char const *default_key) :
+                                       Gtk::FileChooserDialog(Glib::ustring(title),
+                                           Gtk::FILE_CHOOSER_ACTION_SAVE)
+{
+    append_extension = (bool)prefs_get_int_attribute("dialogs.save_as", "append_extension", 1);
+
+    /* One file at a time */
+    set_select_multiple(false);
+
+    /* Initalize to Autodetect */
+    extension = NULL;
+    /* No filename to start out with */
+    myFilename = "";
+
+    /* Set our dialog type (save, export, etc...)*/
+    dialogType = fileTypes;
+
+    /* Set the pwd and/or the filename */
+    if (dir != NULL)
+    {
+        Glib::ustring udir(dir);
+        Glib::ustring::size_type len = udir.length();
+        // leaving a trailing backslash on the directory name leads to the infamous
+        // double-directory bug on win32
+        if (len != 0 && udir[len - 1] == '\\') udir.erase(len - 1);
+        set_current_folder(udir.c_str());
+    }
+
+    //###### Add the file types menu
+    //createFilterMenu();
+
+    //###### Do we want the .xxx extension automatically added?
+    fileTypeCheckbox.set_label(Glib::ustring(_("Append filename extension automatically")));
+    fileTypeCheckbox.set_active(append_extension);
+
+    fileTypeBox.pack_start(fileTypeCheckbox);
+    createFileTypeMenu();
+    fileTypeComboBox.set_size_request(200,40);
+    fileTypeComboBox.signal_changed().connect(
+         sigc::mem_fun(*this, &FileSaveDialogImpl::fileTypeChangedCallback) );
+
+    fileTypeBox.pack_start(fileTypeComboBox);
+
+    set_extra_widget(fileTypeBox);
+    //get_vbox()->pack_start(fileTypeBox, false, false, 0);
+    //get_vbox()->reorder_child(fileTypeBox, 2);
+
+    //###### Add a preview widget
+    set_preview_widget(svgPreview);
+    set_preview_widget_active(true);
+    set_use_preview_label (false);
+
+    //Catch selection-changed events, so we can adjust the text widget
+    signal_update_preview().connect(
+         sigc::mem_fun(*this, &FileSaveDialogImpl::updatePreviewCallback) );
+
+
+    //Let's do some customization
+    fileNameEntry = NULL;
+    Gtk::Container *cont = get_toplevel();
+    std::vector<Gtk::Entry *> entries;
+    findEntryWidgets(cont, entries);
+    //g_message("Found %d entry widgets\n", entries.size());
+    if (entries.size() >=1 )
+        {
+        //Catch when user hits [return] on the text field
+        fileNameEntry = entries[0];
+        fileNameEntry->signal_activate().connect(
+             sigc::mem_fun(*this, &FileSaveDialogImpl::fileNameEntryChangedCallback) );
+        }
+
+    //Let's do more customization
+    std::vector<Gtk::Expander *> expanders;
+    findExpanderWidgets(cont, expanders);
+    //g_message("Found %d expander widgets\n", expanders.size());
+    if (expanders.size() >=1 )
+        {
+        //Always show the file list
+        Gtk::Expander *expander = expanders[0];
+        expander->set_expanded(true);
+        }
+
+
+    //if (extension == NULL)
+    //    checkbox.set_sensitive(FALSE);
+
+    add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
+    add_button(Gtk::Stock::SAVE,   Gtk::RESPONSE_OK);
+
+    show_all_children();
+}
+
+
+
+/**
+ * Public factory method.  Used in file.cpp
+ */
+FileSaveDialog *FileSaveDialog::create(char const *path,
+                                       FileDialogType fileTypes,
+                                       char const *title,
+                                       char const *default_key)
+{
+    FileSaveDialog *dialog = new FileSaveDialogImpl(path, fileTypes, title, default_key);
+    return dialog;
+}
+
+
+
+
+
+/**
+ * Destructor
+ */
+FileSaveDialogImpl::~FileSaveDialogImpl()
+{
+}
+
+
+
+
+/**
+ * Show this dialog modally.  Return true if user hits [OK]
+ */
+bool
+FileSaveDialogImpl::show()
+{
+    set_current_folder(get_current_folder()); //hack to force initial dir listing
+    set_modal (TRUE);                      //Window
+    sp_transientize((GtkWidget *)gobj());  //Make transient
+    gint b = run();                        //Dialog
+    hide();
+
+    if (b == Gtk::RESPONSE_OK)
+        {
+        int sel = fileTypeComboBox.get_active_row_number ();
+        if (sel>=0 && sel< (int)fileTypes.size())
+            {
+            FileType &type = fileTypes[sel];
+            extension = type.extension;
+            }
+        myFilename = get_filename();
+
+        /*
+
+        // FIXME: Why do we have more code
+
+        append_extension = checkbox.get_active();
+        prefs_set_int_attribute("dialogs.save_as", "append_extension", append_extension);
+        prefs_set_string_attribute("dialogs.save_as", "default",
+                  ( extension != NULL ? extension->get_id() : "" ));
+        */
+        return TRUE;
+        }
+    else
+        {
+        return FALSE;
+        }
+}
+
+
+/**
+ * Get the file extension type that was selected by the user. Valid after an [OK]
+ */
+Inkscape::Extension::Extension *
+FileSaveDialogImpl::getSelectionType()
+{
+    return extension;
+}
+
+
+/**
+ * Get the file name chosen by the user.   Valid after an [OK]
+ */
+gchar *
+FileSaveDialogImpl::getFilename()
+{
+    return g_strdup(myFilename.c_str());
+}
+
+/**
+    \brief  A quick function to turn a standard extension into a searchable
+            pattern for the file dialogs
+    \param  pattern  The patter that the extension should be written to
+    \param  in_file_extension  The C string that represents the extension
+
+    This function just goes through the string, and takes all characters
+    and puts a [<upper><lower>] so that both are searched and shown in
+    the file dialog.  This function edits the pattern string to make
+    this happen.
+*/
+void
+FileDialogExtensionToPattern (Glib::ustring &pattern, gchar * in_file_extension)
+{
+    Glib::ustring tmp(in_file_extension);
+
+    for ( guint i = 0; i < tmp.length(); i++ ) {
+        Glib::ustring::value_type ch = tmp.at(i);
+        if ( Glib::Unicode::isalpha(ch) ) {
+            pattern += '[';
+            pattern += Glib::Unicode::toupper(ch);
+            pattern += Glib::Unicode::tolower(ch);
+            pattern += ']';
+        } else {
+            pattern += ch;
+        }
+    }
+}
+
+} //namespace Dialogs
+} //namespace UI
+} //namespace Inkscape
+
+
+/*
+  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 :