在 gtk 工具栏中排列图标
我正在尝试创建一个包含一堆项目的 GTK 工具栏。我的问题是我无法将它们均匀地分开。所有图标都聚集在栏的左侧。我怎样才能让它们散开？出于性能原因，我想避免使用 hbox 等其他小部件。这是我编写的代码：
GtkWidget* navbar = gtk_toolbar_new();
gtk_toolbar_set_style(GTK_TOOLBAR(navbar), GTK_TOOLBAR_ICONS);
gtk_toolbar_set_icon_size(GTK_TOOLBAR(navbar), GTK_ICON_SIZE_SMALL_TOOLBAR);
GtkToolItem* open = gtk_tool_button_new_from_stock(GTK_STOCK_JUMP_TO);
gtk_toolbar_insert(GTK_TOOLBAR(navbar), open, 0);
GtkToolItem* play = gtk_tool_button_new_from_stock(GTK_STOCK_MEDIA_PLAY);
gtk_toolbar_insert(GTK_TOOLBAR(navbar), play, 1);
GtkToolItem* pause = gtk_tool_button_new_from_stock(GTK_STOCK_MEDIA_PAUSE);
gtk_toolbar_insert(GTK_TOOLBAR(navbar), pause, 2);
这是我得到的安排：
I am trying to create a GTK toolbar with a bunch of items. My probelem is that I have not been able to space them out evenly. All icons are bunched together on the left of the bar. How do I get them to spread out? I would like to avoid using additional widgets like hbox, etc for performance reasons. Here's the code I have written:
GtkWidget* navbar = gtk_toolbar_new();
gtk_toolbar_set_style(GTK_TOOLBAR(navbar), GTK_TOOLBAR_ICONS);
gtk_toolbar_set_icon_size(GTK_TOOLBAR(navbar), GTK_ICON_SIZE_SMALL_TOOLBAR);
GtkToolItem* open = gtk_tool_button_new_from_stock(GTK_STOCK_JUMP_TO);
gtk_toolbar_insert(GTK_TOOLBAR(navbar), open, 0);
GtkToolItem* play = gtk_tool_button_new_from_stock(GTK_STOCK_MEDIA_PLAY);
gtk_toolbar_insert(GTK_TOOLBAR(navbar), play, 1);
GtkToolItem* pause = gtk_tool_button_new_from_stock(GTK_STOCK_MEDIA_PAUSE);
gtk_toolbar_insert(GTK_TOOLBAR(navbar), pause, 2);
And here is the arrangement I get:
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您可以在每个项目之间添加一个
GtkSeparatorToolItem；引用 GTK 文档，听听放松怎么说，但不要这样做！甚至不要将它们放在工具栏的中央。 GTK 小部件设计用于各种不同的尺寸、分辨率、桌面主题、语言和配置。你设计应用程序如何工作，GTK 设计它的外观（我向你保证，GTK 团队比你更多地考虑可用性。）用户期望工具按钮位于某个位置。
You can add a
GtkSeparatorToolItemin between each item; quoting from the GTK documentation,Listen to what unwind says though, and don't do it! Don't even place them in the center of the toolbar. GTK widgets are designed to work in all kinds of different sizes, resolutions, desktop themes, languages, and configurations. You design how the application works, GTK designs how it looks (and I assure you, the GTK team has thought more about usability than you have.) Users expect tool buttons to be in a certain place.
我确实相信这是设计使然；工具栏应该紧密排列，以使其更可用。在我个人看来，如果示例图像中的六个按钮均匀分布在整个水平空间上，看起来会更糟。
也就是说，您可以尝试使用
gtk_tool_item_set_expand()将项目添加到工具栏之前。I do believe that this is by design; toolbars are supposed to be packed tightly, to make them more usable. In my personal opinion, the six buttons in the example image would look way worse if spread out evenly over the full horizontal space.
That said, you can try using
gtk_tool_item_set_expand()on your items before adding them to the toolbar.