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Taiko2k
2022-02-01 12:18:05 +13:00
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@@ -599,8 +599,8 @@ Here we use:
colour.parse("#e80e0e") colour.parse("#e80e0e")
rect = Graphene.Rect() # Add Graphene to your imports. i.e. from gi import Graphene rect = Graphene.Rect() # Add Graphene to your imports. i.e. from gi import Graphene
rect.__init__(10, 10, 40, 60) # x, y, w, h. # todo/help this seems like a hacky way of initiating, rect.__init__(10, 10, 40, 60) # x, y, w, h. # todo/help this seems like a hacky way
# is there a better way?
s.append_color(colour, rect) s.append_color(colour, rect)
``` ```
@@ -635,20 +635,22 @@ Fairly straightforward, see [append_border](https://docs.gtk.org/gtk4/method.Sna
```python ```python
texture = Gdk.Texture.new_from_filename("example.png") texture = Gdk.Texture.new_from_filename("example.png")
# Warning: For the purposes of demonstration ive shown this declared in our drawing function, but of course # Warning: For the purposes of demonstration ive shown this declared in our drawing function,
# you would REALLY need to define this somewhere else so that its only called once as we don't want to # but of course you would REALLY need to define this somewhere else so that its only called
# reload/upload the data every draw call. # once as we don't want to reload/upload the data every draw call.
# Tip: There are other functions to load image data from in memory pixel data # Tip: There are other functions to load image data from in memory pixel data
rect = Graphene.Rect() rect = Graphene.Rect()
rect.__init__(50, 50, texture.get_width(), texture.get_height()) # Warning: On a HiDPI display the logical and rect.__init__(50, 50, texture.get_width(), texture.get_height()) # See warning below
s.append_texture(texture, rect) # physical measurements may differ in scale, s.append_texture(texture, rect)
# typically, by a factor of 2. In most places
# we're dealing in logical units, but these
# methods give physical units.
``` ```
Warning: On a HiDPI display the logical and physical measurements may differ in scale, typically by a factor of 2. In most places
we're dealing in logical units but these methods give physical units. So... you might not want to define the size of the rectangle
by the texture.
### Text ### Text
Text is drawn using Pango layouts. Pango is quite powerful and really needs a whole tutorial on its own, but here's Text is drawn using Pango layouts. Pango is quite powerful and really needs a whole tutorial on its own, but here's