GTK Gossip: GtkTreeView 與 GtkTreeStrore

有了 GtkTreeView 與 GtkListStore 的基礎，要在GtkTreeView搭配GtkTreeStore就沒什麼好解釋的了，下面這個範例，只是將 GtkTreeView 與 GtkListStore 範例中的createModel()函式，換成 GtkComboBox 與 GtkTreeStore 中的createModel()函式，剩下的都沒有改變，也就是為 GtkComboBox 與 GtkTreeStore 中的Model換上GtkTreeView的外觀顯示 ： gtk_tree_view_with_tree_store.c #include <gtk/gtk.h> enum { PIXBUF_COL, TEXT_COL }; GtkTreeModel* createModel() { const gchar *files[] = {"caterpillar.jpg", "momor.jpg", "hamimi.jpg", "bush.jpg"}; gchar *stocks[] = { GTK_STOCK_DIALOG_WARNING, GTK_STOCK_STOP, GTK_STOCK_NEW, GTK_STOCK_CLEAR, GTK_STOCK_OPEN }; gchar *stockNames[] = { "WARNING", "STOP", "NEW", "GTK_STOCK_CLEAR", "GTK_STOCK_OPEN" }; GtkWidget *cellView; GdkPixbuf *pixbuf; GtkTreeIter iter1, iter2; GtkTreeStore *store; gint i, j, s; store = gtk_tree_store_new(2, GDK_TYPE_PIXBUF, G_TYPE_STRING); cellView = gtk_cell_view_new(); for(i = 0; i < 4; i++) { pixbuf = gdk_pixbuf_new_from_file(files[i], NULL); gtk_tree_store_append(store, &iter1, NULL); gtk_tree_store_set(store, &iter1, PIXBUF_COL, pixbuf, TEXT_COL, files[i], -1); gdk_pixbuf_unref(pixbuf); for(j = 0; j < 3; j++) { s = rand() % 5; pixbuf = gtk_widget_render_icon(cellView, stocks[s], GTK_ICON_SIZE_BUTTON, NULL); gtk_tree_store_append(store, &iter2, &iter1); gtk_tree_store_set(store, &iter2, PIXBUF_COL, pixbuf, TEXT_COL, stockNames[s], -1); gdk_pixbuf_unref(pixbuf); } } return GTK_TREE_MODEL(store); } gboolean selection_changed(GtkTreeSelection *selection, GtkLabel *label) { GtkTreeView *treeView; GtkTreeModel *model; GtkTreeIter iter; gchar *active; treeView = gtk_tree_selection_get_tree_view(selection); model = gtk_tree_view_get_model(treeView); gtk_tree_selection_get_selected(selection, &model, &iter); gtk_tree_model_get(model, &iter, 1, &active, -1); gtk_label_set_text(label, active); } int main(int argc, char *argv[]) { GtkWidget *window; GtkWidget *treeView; GtkCellRenderer *renderer; GtkTreeViewColumn *column; GtkWidget *label; GtkWidget *vbox; GtkTreeSelection *selection; gtk_init(&argc, &argv); window = gtk_window_new(GTK_WINDOW_TOPLEVEL); gtk_window_set_title(GTK_WINDOW(window), "GtkTreeView"); gtk_window_set_default_size(GTK_WINDOW(window), 200, 50); treeView = gtk_tree_view_new_with_model(createModel()); renderer = gtk_cell_renderer_pixbuf_new(); column = gtk_tree_view_column_new_with_attributes( "Icon", renderer, "pixbuf", PIXBUF_COL, NULL); gtk_tree_view_append_column(GTK_TREE_VIEW (treeView), column); renderer = gtk_cell_renderer_text_new(); column = gtk_tree_view_column_new_with_attributes( "Filename", renderer, "text", TEXT_COL, NULL); gtk_tree_view_append_column(GTK_TREE_VIEW (treeView), column); label = gtk_label_new("caterpillar.jpg"); vbox = gtk_vbox_new(FALSE, 5); gtk_box_pack_start(GTK_BOX(vbox), treeView, TRUE, TRUE, 5); gtk_box_pack_start(GTK_BOX(vbox), label, TRUE, TRUE, 5); gtk_container_add(GTK_CONTAINER(window), vbox); selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(treeView)); g_signal_connect(G_OBJECT(selection), "changed", G_CALLBACK(selection_changed), label); g_signal_connect(GTK_OBJECT(window), "destroy", G_CALLBACK(gtk_main_quit), NULL); gtk_widget_show_all(window); gtk_main(); return 0; } 一個執行的結果如下所示：

BloggerAds 廣告 全台最大無障礙生活趨勢館免費入場 有一天我們會變老有些事必須Crowdsourced Security Testing道全台最大無障礙生活趨勢館12/16～19世貿三館。 更多訊息.. Impr