[gnome-mines/wip/theming-support] Added preview dialog

[Robert Roth <robertroth src gnome org>]

commit a7fb691f0916c788f9cbcb849628fcc9ee22277a
Author: Robert Roth <robert roth off gmail com>
Date:   Sun Jan 4 02:58:55 2015 +0200

    Added preview dialog

 po/POTFILES.in                 |    2 +
 src/Makefile.am                |    3 +-
 src/theme-selector-dialog.vala |   67 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 71 insertions(+), 1 deletions(-)
---
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 18706db..6f4dc93 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -10,3 +10,5 @@ src/history.vala
 src/minefield.vala
 src/minefield-view.vala
 src/score-dialog.vala
+src/tile.vala
+src/theme-selector-dialog.vala
diff --git a/src/Makefile.am b/src/Makefile.am
index 43bdc4d..667aec9 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -7,7 +7,8 @@ gnome_mines_SOURCES =   \
        minefield.vala \
        minefield-view.vala \
        score-dialog.vala \
-       tile.vala
+       tile.vala \
+       theme-selector-dialog.vala
 
 gnome_mines_CFLAGS = \
        -DVERSION=\"$(VERSION)\" \
diff --git a/src/theme-selector-dialog.vala b/src/theme-selector-dialog.vala
new file mode 100644
index 0000000..32a12ee
--- /dev/null
+++ b/src/theme-selector-dialog.vala
@@ -0,0 +1,67 @@
+private class PreviewField : Minefield
+{
+    public PreviewField ()
+    {
+        base (7, 7, 20);
+
+        place_mines (0, 0);
+    }
+
+    protected new void place_mines (uint x, uint y)
+    {
+        for (int i = 0; i < 7; i++)
+            locations[i, 0].has_mine = i >= 5;
+        for (int i = 0; i < 7; i++)
+            locations[i, 1].has_mine = false;
+        for (int i = 0; i < 7; i++)
+            locations[i, 2].has_mine = i == 0 || i == 3;
+        for (int i = 0; i < 7; i++)
+            locations[i, 3].has_mine = i == 0 || i == 2;
+        for (int i = 0; i < 7; i++)
+            locations[i, 4].has_mine = i == 0 || i == 2 || i > 3;
+        for (int i = 0; i < 7; i++)
+            locations[i, 5].has_mine = i % 2 == 0;
+        for (int i = 0; i < 7; i++)
+            locations[i, 6].has_mine = i != 1;
+
+    }
+
+}
+
+public class ThemeSelectorDialog : Gtk.Dialog
+{
+
+    public ThemeSelectorDialog ( )
+    {
+        set_default_size (300, 332);
+        title = _("Select theme");
+        var frame = new Gtk.AspectFrame (null, 0.5f, 0.5f, 1.0f, false);
+        frame.border_width = 6;
+        get_content_area ().pack_start (frame, true, true, 0);
+
+        var settings = new Settings ("org.gnome.mines");
+        settings.delay ();
+
+        var view = new MinefieldView (settings);
+        view.minefield = new PreviewField ();
+        frame.add (view);
+        frame.show_all ();
+
+        reveal_nonmines (view);
+    }
+
+    private void reveal_nonmines (MinefieldView view)
+    {
+        for (int i = 0; i < 7; i ++)
+            for (int j = 0; j < 6; j ++)
+            {
+                if (!view.minefield.has_mine (i, j)) {
+                    view.minefield.clear_mine (i, j);
+                    view.multi_release (i, j);
+                } else {
+                    view.toggle_mark (i, j);
+                }
+            }
+    }
+
+}