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);
Related
I'm trying to make a TextField like in the image using Jetpack Compose.
So far no luck in finding a easy way.
The label must stay inside the outline, if I use OutlinedTextField there is no way to customise that. If I use the TextField which has the label on the inside there is no outline when selected, just the line below the textfield.
Also I need to add a shadow/glow effect with a custom color, here seen in gold.
I'm stumped..
Any thoughts?
You can do this by creating a Row with a Modifier.drawBehind that uses native paint to draw blur with color as in this image, the one with pink background has blur with same background color for shadow for instance, you can check the code for drawing colored blur here.
val myColor = color
.copy(alpha = shadow.alpha)
.toArgb()
val transparent = color
.copy(alpha = 0f)
.toArgb()
frameworkPaint.color = transparent
frameworkPaint.setShadowLayer(
radius,
dx,
dy,
myColor
)
it.drawRoundRect(
//...
paint = paint
)
It draws a shape behind you can draw a shape with stroke.
For the label and input create a Column with Modifier.weight() to use space inside row other than space reserved for Icon with close image.
Instead of TextField you can use a BasicTextfield which doesn't have default padding, however you can achieve the same thing with TextField too, but you will need to set colors to transparent to remove indicator line, it has some default padding you might not want to have.
TextField(
colors = TextFieldDefaults.textFieldColors(
focusedIndicatorColor = Color.Transparent,
unfocusedIndicatorColor = Color.Transparent,
disabledIndicatorColor = Color.Transparent
)
)
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 want to change the color of the slider (cursor) and the color of the line on which the slider lies. I also want to make the background transparent.
I used this code in the control's constructor but it still gives me a white background.
Me.SetStyle(ControlStyles.SupportsTransparentBackColor, True)
Me.BackColor = Color.Transparent
Any kind of help is appreciated. Thanks!
I have Button image with Rounded Button image. I am tiling image to get bigger button in QML . I am using parent as rectangle and image as BorderImage. After tiling I am getting rectangle on top image is visible. I need to remove the part of the rectangle so that only rounded button image (Has transparency) is Visible. Even i need to change the color of the behind rectangle so that Color animation is possible.
Please suggest efficient method to remove the behind rectangle and provide the color animation also.
I am attaching the Rounded button border image as attachment and source code for tiling the button image.
Rectangle{
id:outerBorderRect
smooth:true
anchors.fill:parent
//opacity:.25
//border.width:0
BorderImage{
id:innerBorderRect
smooth:true
anchors.fill:parent
border{left:20;top:16;right:17;bottom:20}
horizontalTileMode:BorderImage.Round
verticalTileMode:BorderImage.Round
source:"button_3.png"
}
}
A simple and semi-hack way to do this is to use the radius property in Rectangle to hide the corners of your button.
Or you could use a proper mask by using Qt's OpacityMask.
I'm not sure what kind of animation you're looking for. You'll have to provide more details for me to answer that part.
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....