In a form I have a picturebox and Rectangle structure,
Dim RcDraw As Rectangle
I fill the x and y property of this structure
RcDraw.X = 10
RcDraw.Y = 10
and I need to execute the paint event of the picturebox in order to see the rectangle in the picturebox, how I can do this?
Use the Invalidate Method of the PictureBox, you also need to assign the Height and Width to your rectangle
PictureBox1.Invalidate()
Then in your Picturebox's Paint EventHandler you would do something like this.
e.Graphics.DrawRectangle(Pens.Black, RcDraw)
or if you want it filled.
e.Graphics.FillRectangle(Brushes.Black, RcDraw)
Related
I am just making an Treeview in JavaFX. And i want to make Treeview Icon as rectangle shape just filled with color.
How can i make Rectangle shaped imageview for Treeview`s icon?
I just want to do like this...
Rectangle r = new Rectangle(20,20,20,20);
r.setFill(Color.BLACK);
Image mImage = new Image("I want to use r object here..");
ImageView mImageView = new ImageView(mImage);
Or the other way to make Rectangle shaped Imageview in code.
When I set the textbox's anchor to top,bottom,left,right the textbox still stays on the top. I don't understand, this seems to work for labels and buttons. I kinda need this anchor property for it to adapt well to a form resize.
I'm sorry if I'm missing something incredibly obvious.
If I understand your question, you want a single line textbox to appear centered vertically and horizontally in your form. Still without showing more than one line. In this case you could set just the Anchor Left and Right property to have you textbox centered horizontally on the form, but for the vertical position you need to work with code adjusting the Iop property of the textbox in the Resize event of the form
For example, after the call to InitializeCompoment of your form you could add the following code to center your textbox (C# but easily convertible to VB.NET)
textBox1.Left = 10;
textBox1.Width = yourForm.ClientSize.Width - 20;
textBox1.Top = (yourForm.ClientSize.Height / 2) - yourForm.Height / 2;
textBox1.Anchor = AnchorStyles.Left | AnchorStyles.Right;
and then add the event handler for the resize event of your form where you could call again the vertical repositioning of the textbox
protected void yourForm_Resize(object sender, EventArgs e)
{
textBox1.Top = (this.ClientSize.Height / 2) - textBox1.Height / 2;
}
I have a problem with the my picturebox.
I want to place it on my map which i got in my program.
That works when i put my img in a Picturebox and then BringToFront();
i wanted to add a picture with the problem, but i just started at StackOverflow and doesnt have enough reputation yet... :(
Anyway my img got displayed but with the white fields around it. The img I use doenst have these white stuff around it.
How can i make my Picturebox transparent so that the white fields get removed.
LogoBox.Location = new Point(size.Width - 340, size.Height - 100);
LogoBox.Image = Properties.Resources.Troepoet;
LogoBox.Size = new System.Drawing.Size(250, 40);
LogoBox.SizeMode = PictureBoxSizeMode.StretchImage;
LogoBox.BackColor = Color.Transparent;
I tried to do it with only drawing a bitmap aswell but then i cant see any possibility to place it on the map. The map is a 'dominant' control.
Any help/suggestions?
Thx.
You don't need to put a picturebox on the map to draw your logo.
The easy way is to override the Map OnPainOverlays() and draw whatever you want (Logo, Text, any shape) on the map or another way if you don't want to inherit the GmapControl and work with the GMapControl by drag & drop it over a form to handle the Paint() Event:
Private Sub GMapControl1_Paint(sender As Object, e As PaintEventArgs) Handles GMapControl1.Paint
Dim logo As Image = image.FromFile("C:\transparentLogo.png")
e.Graphics.DrawImage(logo, GMapControl1.Width - logo.Width - 5, 5, logo.Width, logo.Height)
End Sub
Make sure you make image transparent and save it as PNG format.
How do I make the corners of a TextField round?
I'm using Javax.swing.*;
Here's my code for BlueJ:
inputLine = new JTextField();
inputLine.setBounds(480, 350, 150, 30);
contentPane.add(inputLine);
inputLine.setForeground(Color.black);
inputLine.setBackground(Color.white);
inputLine.setBorder(BorderFactory.createLineBorder(Color.black));
inputLine.setFont(new Font("Tahoma", Font.BOLD, 13));
inputLine.setHorizontalAlignment(JTextField.CENTER);
inputLine.setEditable(true);
contentPane.add(inputLine);
inputLine.addActionListener(this);
inputLine.setText("ID Number");
what you can do, is first create a Jframe window.
If you want only a text Field, make the dimensions of the j Frame a bit bigger than the preferred text Field size.
Then, set the layout of the jFrame to absolute.
Create a Jlabel that covers the whole screen Jframe.
Create the text Field only after this step.
Then create the text Field at the preferred location in the j Frame.
Design a graphic / picture for the background and set the icon of the background jLabel to the graphic you have designed.
The graphic you have designed must have a rounded rectangular picture in it and the text Field must be exactly positioned on top of that.
Once that is done set the opacity of the Text Field to 0.0. This should work very well...
JFrame frame = new JFrame("FrameDemo");
jframe.setPreferredSize(new Dimension(x, y));
[please add the other methods to create a jframe window...these are only the basic commands]
pane.setLayout(null);//makes it an absolute layout so that it does not reshape itself
frame.setVisible(true);
after doing this, design your graphics.
then:
import it into the current working directory, where this program has been written.
then:
create a jLabel inside the jFrame.
JLabel label1 = new JLabel("JLabel Set Icon Example.");
set its icon to the graphic you have designed.
label1.setIcon(new ImageIcon("full path of the image _ with the proper file extension"));
then
textField = new JTextField(desired value);//please add the desired value into the brackets
//set its location and all the other thing that are required
set the location of the textField exactly over the the rounded rectangle in the graphic.
then:
textField.isOpaque("false");
jTextField1.setBorder(null);//this should work
and there you go...the user will think that the textField is a rounded rectangle but actually it is like a rectangle which has a transparent background...
let me know if there are any problems.
thanks.
I am using FabricJS to create an application. I am finding that scrolling a parent div/container offsets the selectable area of an object to the right in direct relation to amount scrolled.
So, if I have a canvas that is 1200x600 and a container div that is 600x600 and I add a rect to that canvas at 400, 120; when I scroll 200px, I can't click on the rect to select it. Rather, I have to move my mouse to 600, 120 (empty space) to get the cross bar and select the rect.
Not sure if this is known, or has a work around - but I would appreciate any help possible.
You'll have to modify FabricJs code to make it work.
The problem is in the getPointer function, if you search for it in all.js you'll notice the comment "this method needs fixing" from kangax.
A workaround can be substituting this function with
function getPointer(event) {
// TODO (kangax): this method needs fixing
return { x: pointerX(event) + document.getElementById("container").scrollLeft, y: pointerY(event) + document.getElementById("container").scrollTop };
}
where "container" is the wrapper div of you canvas. It's not nice, since you have to put the exact id, but it works.
Hope this helps.