drawingarea

问题 How to bring a widget to the front of another widget? I want to put the timeLeft Label in front of the box DrawingArea My Code : box.SetSizeRequest((int)Math.Floor(size*2.5), size); box.ExposeEvent += boxExpose; theMainWindow.winFix.Put(box, x, y); box.Show(); Pango.FontDescription fontdesc = Pango.FontDescription.FromString("Lucida Console " + (size - 6)); timeLeft.ModifyFont(fontdesc); timeLeft.SetSizeRequest((int)Math.Floor(size*2.5)-6, size-6); theMainWindow.winFix.Put(timeLeft, x+3, y+3)

问题 (This is my first post, sorry if I do something wrong...) I am writing a program in Vala with which one can design a classroom. I have decided to use GTK for the GUI (Vala integrates well with this), and Cairo to draw the classroom diagram (GTK comes with this by default). I have created a 'classroom' class (a subclass of Gtk.DrawingArea), which currently should just display a square: public class Classroom : DrawingArea { private delegate void DrawMethod(); public Classroom() { this.draw

问题 I'm not able to draw, i've already read tutorials, i can't find the problem. I simply have a correct UI drawed by Glade. Then i want to draw, for example 50 drawing areas. So i create a Grid with 50 cells; for each cell there is a vertical box (with a drawing area and a label inside each one). But i can't seen anything drawed. class collega_GUI: def __init__(self): try: self.__builder = Gtk.Builder() self.__builder.add_from_file('UI2.glade') self.__Grid = Gtk.Grid() self.__Grid.set_margin

问题 I have a GTK drawing area and I want to have an image display as the background for it, while other things can be drawn over it. My first attempt at this involved me simply taking the image, putting it into a pixmap, and drawing it before I draw other objects. This resulted in the objects backgrounds completely covering my background image. Now I am thinking I need to change the object's pixmap's gtk.gdk.GC so the background color it has is transparent. Here is where I am having problems. I