gtk3

问题 I'm using a Gtk3 TreeView that looks like above. The model is a Gtk.TreeStore Gtk.TreeStore(str, GdkPixbuf.Pixbuf) For the picture I could add to the model the correctly sized images via: pixbuf.scale_simple(48,48,GdkPixbuf.InterpType.BILINEAR) However I'm also using the model elsewhere showing the pixbufs in a different manner and the pixbufs can also be a variety of sizes. What I would like to do is force the size of the picture displayed at run-time. The question is - how do I do that? I

问题 Context In GTK 3, people can set their own themes. Even the default theme (Adwaita) is provided with two variants: a light one and a dark one. As I am writing my own widget (in python), I need to get these colors in order to avoid drawing black on black or white on white. Question How can I access the default colors of the user GTK theme? Things that don't work GtkSettings used to provide an acceptable gtk-theme-color property, but it is not there anymore and there is no reference in the doc

问题 Context In GTK 3, people can set their own themes. Even the default theme (Adwaita) is provided with two variants: a light one and a dark one. As I am writing my own widget (in python), I need to get these colors in order to avoid drawing black on black or white on white. Question How can I access the default colors of the user GTK theme? Things that don't work GtkSettings used to provide an acceptable gtk-theme-color property, but it is not there anymore and there is no reference in the doc

问题 Context In GTK 3, people can set their own themes. Even the default theme (Adwaita) is provided with two variants: a light one and a dark one. As I am writing my own widget (in python), I need to get these colors in order to avoid drawing black on black or white on white. Question How can I access the default colors of the user GTK theme? Things that don't work GtkSettings used to provide an acceptable gtk-theme-color property, but it is not there anymore and there is no reference in the doc

问题 I had this following code pull from one of the tutorials on line. When I use gtk+-2.0, the following code works fine. But when I try compile with gtk+-3.0, the code gives this error: signal 'expose-event' is invalid for instance of type 'GtkWindow' So I try to do the following, but still doesn't help. And it gives another error: signal 'expose-event' is invalid for instance of type 'GdkX11Window' gtk_widget_realize(window); GdkWindow *gdkwin = gtk_widget_get_window(Gwindow); int main(int argc

问题 I am trying to add an image to a button with label, but the image doesn't show and the broken image doesn't display either. stop_button = gtk_button_new_with_label("stop"); image = gtk_image_new_from_file ("/home/cendit/Escritorio/index.jpeg"); gtk_button_set_image (GTK_BUTTON(stop_button),image); I tried a different path "file:///home/cendit/Escritorio/index.jpeg" but it was not successful. 回答1: Images inside buttons are not visible by default, as we transitioned from GTK+ 2.x to 3.x. Sadly,

问题 I am trying to add an image to a button with label, but the image doesn't show and the broken image doesn't display either. stop_button = gtk_button_new_with_label("stop"); image = gtk_image_new_from_file ("/home/cendit/Escritorio/index.jpeg"); gtk_button_set_image (GTK_BUTTON(stop_button),image); I tried a different path "file:///home/cendit/Escritorio/index.jpeg" but it was not successful. 回答1: Images inside buttons are not visible by default, as we transitioned from GTK+ 2.x to 3.x. Sadly,

问题 I am trying to add an image to a button with label, but the image doesn't show and the broken image doesn't display either. stop_button = gtk_button_new_with_label("stop"); image = gtk_image_new_from_file ("/home/cendit/Escritorio/index.jpeg"); gtk_button_set_image (GTK_BUTTON(stop_button),image); I tried a different path "file:///home/cendit/Escritorio/index.jpeg" but it was not successful. 回答1: Images inside buttons are not visible by default, as we transitioned from GTK+ 2.x to 3.x. Sadly,

问题 I am trying to add an image to a button with label, but the image doesn't show and the broken image doesn't display either. stop_button = gtk_button_new_with_label("stop"); image = gtk_image_new_from_file ("/home/cendit/Escritorio/index.jpeg"); gtk_button_set_image (GTK_BUTTON(stop_button),image); I tried a different path "file:///home/cendit/Escritorio/index.jpeg" but it was not successful. 回答1: Images inside buttons are not visible by default, as we transitioned from GTK+ 2.x to 3.x. Sadly,

问题 I have a GtkEntry that's I'd like to allow users to style with their choice of font (or system default). I end up with a Pango description string like "Monospace 10" to describe the font. I'm currently using override_font , which is deprecated in favour of CSS styling. I'd like to at least attempt to do it "right", but it seems like a pretty convoluted and fragile workflow now to get the CSS from the Pango string. Here's an example from Github: def _get_editor_font_css(): """Return CSS for