Re-add minwin gtk example

samples/minwin_gtk/minwin/listbox.d

@@ -0,0 +1,140 @@
+/* MinWin ListBox class
+ *
+ * Display a list of items to choose from.
+ *
+ * Written by Ben Hinkle and released to the public domain, as
+ * explained at http://creativecommons.org/licenses/publicdomain
+ * Report comments and bugs at dsource: http://www.dsource.org/projects/minwin
+ */
+
+module minwin.listbox;
+
+// TODO: multi-select
+
+public import minwin.component;
+
+private {
+    import minwin.app;
+    import minwin.window;
+    import minwin.peerimpl;
+    import std.string;
+    import minwin.logging;
+}
+
+version (MinWin32) {
+
+    private import minwin.mswindows;
+
+    class ListBox : WindowChild {
+
+        this(Component parent, char[][] text, char[] name = "") {
+            PeerForAdd parentp = parent.getPeerForAdd();
+            this.name = name;
+            HINSTANCE hInst = GetModuleHandleA(null);
+            peer = CreateWindowA("LISTBOX","",
+                 WS_CHILD | WS_VISIBLE,
+                 0,0,10,10,parentp,
+                 cast(HMENU)0,hInst,null);
+            sysAssert(peer !is null, "Failed to create peer ListBox");
+            foreach (char[] s; text) {
+                SendMessageX(peer,LB_ADDSTRING,0,s);
+            }
+            Font f = standardFont(StandardFont.Gui);
+            SendMessageA(peer,WM_SETFONT,cast(WPARAM)f.peer,0);
+            setWindowChildPeer(this,peer,OWNS_PEER);
+            parent.addChild(this);
+        }
+        mixin WindowChildImpl!();
+        Point preferredSize() {
+            //            width = SendMessageA(peer,CB_GETDROPPEDWIDTH,0,0);
+            int height = SendMessageA(peer,LB_GETITEMHEIGHT,cast(WPARAM)-1,0)*
+                SendMessageA(peer,LB_GETCOUNT,0,0);
+            int width = 75;
+            return XY(width,height);
+        }
+        // -1 for custom text
+        int selection() {
+            return SendMessageA(peer,LB_GETCURSEL,0,0);
+        }
+        void selection(int n) {
+            SendMessageA(peer,LB_SETCURSEL,n,0);
+            version (LOG) log.writefln("number of item is %d",
+                        SendMessageA(peer,CB_GETCOUNT,0,0));
+        }
+    }
+
+} else version (GTK) {
+
+    private import minwin.gtk;
+    private import std.c.string;
+
+    class ListBox : WindowChild {
+
+        this(Component parent, char[][] text, char[] name = "") {
+            PeerForAdd parentp = parent.getPeerForAdd();
+            this.name = name;
+            GType the_type = g_type_fundamental(16); // means string
+            GtkListStore* model = gtk_list_store_newv(1,&the_type);
+            GtkTreeIter iter;
+            foreach (char[] s; text) {
+                gtk_list_store_append(model,&iter);
+                int[3] args;
+                args[0] = 0;
+                args[1] = cast(int)toStringz(s);
+                args[2] = -1;
+                gtk_list_store_set_valist(model,&iter,&args);
+            }
+            peer = gtk_tree_view_new_with_model(cast(GtkTreeModel*)model);
+            g_object_unref(cast(GObject*)model);
+            gtk_container_add(cast(GtkContainer*)parentp,peer);
+            setWindowChildPeer(this,peer,OWNS_PEER);
+            parent.addChild(this);
+            gtk_widget_realize(peer);
+            visible = true;
+            gtk_tree_view_columns_autosize(cast(GtkTreeView*)peer);
+            gtk_tree_view_expand_all(cast(GtkTreeView*)peer);
+            GList* objs = gtk_tree_view_get_columns(cast(GtkTreeView*)peer);
+            //            printf("len %d\n",g_list_length(objs));
+            //            printf("cols %d\n",gtk_tree_model_get_n_columns(cast(GtkTreeModel*)model));
+            g_list_free(objs);
+        }
+
+        // -1 for custom text
+        int selection() {
+            //            GtkComboBox* box = cast(GtkComboBox*)peer;
+            //            return gtk_combo_box_get_active(box);
+            return 0;
+        }
+        void selection(int n) {
+            //            GtkComboBox* box = cast(GtkComboBox*)peer;
+            //            gtk_combo_box_set_active(box,n);
+        }
+
+        char[] text() {
+            char* str;
+            GtkTreeView* list = cast(GtkTreeView*)peer;
+            GtkTreeModel* model = gtk_tree_view_get_model(list);
+            GtkTreeIter iter;
+            if (gtk_tree_model_get_iter_first(model,&iter)) {
+                int n = selection();
+                GValue* val;
+                while (n--) {
+                    gtk_tree_model_iter_next(model,&iter);
+                }
+                gtk_tree_model_get_value(model,&iter,0,val);
+                str = *(cast(char**)val);
+                g_value_unset(val);
+            }
+            if (str is null)
+                return "";
+            else
+                return str[0..strlen(str)].dup;
+        }
+
+        void text(char[] s) {
+            assert(false);
+        }
+
+        mixin WindowChildImpl!();
+    }
+}