I have the following code in my PyGTK application:
scroll = gtk.ScrolledWindow()
scroll.set_policy(gtk.POLICY_NEVER, gtk.POLICY_AUTOMATIC)
scroll.modify_bg(gtk.STATE_NORMAL,gtk.gdk.Color("#FFFFFF"))
scroll.add_with_viewport(self.movieView)
layout = gtk.VBox()
layout.pack_start(top,False,False)
layout.pack_start(scroll)
But the background of the scroll area still shows up gray, instead of white
Is this a known bug, or am I doing something wrong?
Related
#Shai According to the image below got from CleanMordern Project.
how can I style my radio buttons using CSS to look exactly as Shai did his,
and also make actions on each button to show different container when pressed
ButtonGroup barGroup = new ButtonGroup();
RadioButton all = RadioButton.createToggle("All", barGroup);
all.setUIID("SelectBar");
RadioButton featured = RadioButton.createToggle("Featured", barGroup);
featured.setUIID("SelectBar");
RadioButton popular = RadioButton.createToggle("Popular", barGroup);
popular.setUIID("SelectBar");
RadioButton myFavorite = RadioButton.createToggle("My Favorites", barGroup);
myFavorite.setUIID("SelectBar");
Label arrow = new Label(res.getImage("news-tab-down-arrow.png"), "Container");
add(LayeredLayout.encloseIn(
GridLayout.encloseIn(4, all, featured, popular, myFavorite),
FlowLayout.encloseBottom(arrow)
));
You can open the theme file in the designer tool and just copy the styling from there. I implemented this using image backgrounds to keep some pixels free for the arrow on the bottom.
If you look at the theme you will see I just placed a background image that's solid red on top and has a white bottom. Then I have a separate "arrow" image which is animated with the code to the selected button on every click. Everything else is just colors and fonts which is trivial.
I'm trying to set the screen background to transparent using this navigator property:
screenBackgroundColor: 'transparent'
In addition, I changed the root view background color to Green in XCode like this:
self.window.backgroundColor = [UIColor greenColor];
I'm expecting to see the Green background without any interference . When running in Simulator I see a black rectangle with some opacity and a gradient toward the green color on the margins... (please see screenshot below) how to fix that? Maybe I'm missing some flag??
black rectangle instead of green background
I'm also using these other navigator style properties:
navBarTranslucent: true
navBarTransparent: true,
navBarNoBorder: true,
drawUnderNavBar: true
navBarTranslucent:true,
navBarBlur: false,
here I try to set the NavBar to Red background color and it still not working:
navbar background color red instead of transparent - still not working
I see from https://vega.github.io/vega-lite/docs/config.html that it is possible to change the background color. But i don't see any docs for adding an underlay background image.
vega-lite creates a canvas element.
So adding a background image is explained in a question about how to add a background to a canvas element.
HTML5 Canvas background image
But you can just do it with css:
canvas {
background: url("my_background.png");
}
This is just like any other background image css.
https://developer.mozilla.org/en-US/docs/Web/CSS/background-image
I'm trying to find a way to mark the border of a QGraphicsScene, and make it resizable inside a QGraphicsView, to create something similar to Microsoft Paint.
In other words, my current QGraphicsView looks like this:
But my image is only this big, as indicated by the red box:
I want my QGraphicsView to be like this (the little black boxes are cornergrabbers for resizing the canvas):
Functionally, I want it to be similar to MS Paint:
The canvas (scene) is resizable, and the scrollbars on the window (view) appear when needed. The blue background color (solid gray background) appears behind the canvas.
How would I go about accomplishing this?
To try to get the grey background, I've been experimenting with QGraphicsView.setBackgroundBrush() and QGraphicsScene.setBackgroundBrush(). I've learned that QGraphicsView's background brush completely overrides QGraphicsScene's background brush if one is set. Even if I only set the background brush for QGraphicsScene, that background brush extends over the image's original boundaries.
Here is a link to my test code.
Help is appreciated!
I have to struggle with your constructors...dunno if it works on Windows, but have to make it to work with Linux. Try :
def setPixmap(self, pixmap):
if self.pixmap_item:
self.removeItem(self.pixmap_item)
self.pixmap_item = self.addPixmap(pixmap)
self.setPixBackGround()
def setPixBackGround(self):
# put Background rect for image
pixR = self.pixmap_item.pixmap().rect()
bgRectangle = self.addRect(pixR.x()-10, pixR.y()-10,
pixR.width()+20, pixR.height()+20)
# set color and Z value to put it behind image
bgColor = QColor(58, 176, 176)
bgRectangle.setBrush(bgColor)
bgRectangle.setZValue(-.1)
# take coordinates for brabbers
bgR = bgRectangle.rect()
grab1R = QRect(-5,-5,10,10)
# put grabbers as wish...
grab1 = self.addRect(grab1R)
grab1.setPos(bgR.topLeft())
grab2 = self.addRect(grab1R)
grab2.setPos(bgR.topRight())
# ....etc....
I have drawn one rectangle by using RectangleFigure in draw2d. And I am able to
color the rectangle figure by calling rectangleFigure.setBackgroundColor.
Now the same way I want to color the Image also. For that I used ImageFigure in
draw2d and I gave the background color by calling ImageFigure.setBackgroundColor().
But it does not give any color for me. So How can I give the background color
to the image figure in draw2d?
RectangleFigure extends Shape which draws it's own background by default. ImageFigure directly extends Figure which will only draw the background if you set it as Opaque:
imageFigure.setOpaque(true);