I'm trying to write text inside circle (not centered by rectangle) alignment must be from line to line inside circle.
I have successfully drawn the circle and text. I did research on Stack Overflow and Google without success about putting text inside this circle.
private void Button1_Click(object sender, EventArgs e)
{
System.Drawing.Graphics graphicsObj;
graphicsObj = this.CreateGraphics();
// Create font and brush.
Font drawFont = new Font("Arial", 5);
SolidBrush drawBrush = new SolidBrush(Color.Black);
// Create point for upper-left corner of drawing.
float x = 150.0F;
float y = 50.0F;
// Set format of string.
StringFormat drawFormat = new StringFormat();
drawFormat.FormatFlags = StringFormatFlags.FitBlackBox;
graphicsObj.DrawEllipse(Pens.Red, 20, 20, 350, 350);
graphicsObj.DrawString(richTextBox1.Text.ToString(), drawFont, drawBrush, x, y, drawFormat);
}
Looking for advise, not for exact code..
-> How to establish connection for text alignment based on rectangle.
Expected output like in this image : https://imge.to/i/miFif
exactly same but I need in C# Win.Form -> Wrap text inside a circular div
DrawString has an overload with format options:
...
DrawString(e.Cache, text, rect,
new StringFormat() {
LineAlignment = StringAlignment.Center,
Alignment = StringAlignment.Center
});
Related
I'm drawing strings on an image and saving it as a TIFF. I need to orient the text like this:
desired output
I'm using this code to create the string format:
formatFlags = (StringFormatFlags.NoClip | StringFormatFlags.DirectionVertical | StringFormatFlags.DirectionRightToLeft);
And this is the output:
actual output
How can I simply flip the orientation around?
Update: Based on the comment, I tried this, but it is place my text way up in the corner instead of where it would be if I didn't add in that sample code. I commented out my original DrawString.
protected virtual void AddTextToBackground(Graphics backgroundGfx, FeatureLocation featureLocation, TextFeature textFeature, int equator) {
Font font = CreateFont(textFeature);
Color fontColor = ColorTranslator.FromHtml(textFeature.FontColor);
Brush textBrush = new SolidBrush(fontColor);
// Determine postion of text box
int xPos = featureLocation.XPos - TEXT_RECT_WIDTH / 2;
int adjustedEquatorOffset = CalculateTextEquatorOffset(featureLocation.EquatorOffset);
//int adjustedEquatorOffset = featureLocation.EquatorOffset;
int yPos = CalculateYPos(equator, adjustedEquatorOffset, TEXT_RECT_WIDTH);
// Rectangle is necessary to create centered text using StringFormat in the DrawString call
Rectangle rect = new Rectangle(xPos, yPos, TEXT_RECT_WIDTH, TEXT_RECT_WIDTH);
// Set up alignment
StringFormat stringFormat = new StringFormat {
Alignment = StringAlignment.Center,
LineAlignment = FindStringAlignment(featureLocation.EquatorOffset)
};
// Determine rotation and set format flags
stringFormat.FormatFlags = GetTextFormatFlags(featureLocation.DefaultRotation, textFeature.Rotation);
// Draw text
SizeF sz = backgroundGfx.VisibleClipBounds.Size;
backgroundGfx.TranslateTransform(sz.Width / 2, sz.Height / 2);
backgroundGfx.RotateTransform(45);
//backgroundGfx.DrawString(textFeature.Text, font, textBrush, rect, stringFormat);
backgroundGfx.DrawString(textFeature.Text, font, textBrush, -(sz.Width/2), -(sz.Height/2), stringFormat);
backgroundGfx.ResetTransform();
}
I'm trying to draw a box around a label which has been aligned using StringAlignment.Far for example. I can find the Size of text using g.MeasureString but I can't find a method to translate the origin point such that I can find a Rectangle which bounds the text.
Say I have a Point origin at which to draw from, and a StringFormat format with what alignment I wish my string to have. I can find the Size of the string using g.MeasureString(text, font). How do I translate this Point/Size pair into a rectangle which overlaps the g.DrawString(text, font, brush, origin, format) call.
It's difficult to convert c to managed code. You should use .Net code directly if it's available.
For MeasureString, see link Graphics.MeasureString Method
Example:
using System.Diagnostics;
...
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
Graphics g = e.Graphics;
Font font = new Font("Arial", 16);
SizeF sz = g.MeasureString("Text...", font);
Rectangle rc = new Rectangle(0,0, (int)sz.Width, (int)sz.Height);
Debug.WriteLine(rc.Width.ToString());
Debug.WriteLine(rc.Height.ToString());
//change top/left origin of rectangle
rc.X = 10;
rc.Y = 20;
}
You just need the width and height of text. You can change left/top corner of rectangle.
By the way, the C method gives a rectangle with top/left coordinates at zero, so it's the same information as Size
Edit
This will fit text with word-break flag in to a rectangle whose width is 100. The height of the rectangle is not known. TextRenderer.MeasureText will tell us the height of the rectangle. Top/left corner can be changed, alignment can be changed.
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
Font font = new Font("Arial", 10);
string text = "I'm trying to draw a box around a label which has been aligned.";
Size layout = new Size(100, 0);
Size sz = TextRenderer.MeasureText(e.Graphics, text, font, layout,
TextFormatFlags.WordBreak);
Rectangle rc = new Rectangle(new Point(0,0), sz);
e.Graphics.DrawRectangle(Pens.Black, rc);
TextRenderer.DrawText(e.Graphics, text, font, rc,
SystemColors.ControlText, SystemColors.Control, TextFormatFlags.WordBreak);
}
My way is use SetMeasurableCharacterRanges to obtain the region of the whole text.
Consider into OnPaint:
protected override void OnPaint(PaintEventArgs e)
{
Graphics g = e.Graphics;
Font font = new Font("Arial", 16);
string text = "Border of this text";
StringFormat sf = new StringFormat();
sf.Alignment = StringAlignment.Center;
sf.LineAlignment = StringAlignment.Center;
RectangleF area = new RectangleF(0, 0, 246, 84);
sf.SetMeasurableCharacterRanges(new CharacterRange[] { new CharacterRange(0, text.Length) });
Region[] r = g.MeasureCharacterRanges(text, font, area, sf);
Rectangle rf = new Rectangle((int)r[0].GetBounds(g).X, (int)r[0].GetBounds(g).Y, (int)r[0].GetBounds(g).Width, (int)r[0].GetBounds(g).Height);
g.DrawString(text, font, Brushes.Black, area, sf);
g.DrawRectangle(new Pen(Color.Red, 1), rf);
}
Is to possible to stretch Font in WinForms? What I am trying to accomplish is to stretch font to maximum available RichTextBox width. It should be something like viewbox in WPF.
My goal is to stretch font NOT TO resize it. All fonts I am using are mono spaced fonts.
yes it's possible to do this
private void button1_Click(object sender, EventArgs e)
{
Graphics gr = richTextBox1.CreateGraphics();
Brush brush = new SolidBrush(Color.Red);
float x = 0.0F;
float y = 0.0F;
float width = 200.0F;
float height = 50.0F;
Font drawFont = new Font("Arial", 18);
RectangleF drawRect = new RectangleF(x, y, width, height);
//here you can shrink as you want
gr.ScaleTransform(3, 1);
gr.DrawString("your text", drawFont, brush, drawRect);
}
Hope this help
I have the following code. Is there an easy way to put an outline on the text I am writing?
var imageEncoder = Encoder.Quality;
var imageEncoderParameters = new EncoderParameters(1);
imageEncoderParameters.Param[0] = new EncoderParameter(imageEncoder, 100L);
var productImage = GetImageFromByteArray(myViewModel.ProductImage.DatabaseFile.FileContents);
var graphics = Graphics.FromImage(productImage);
var font = new Font("Segoe Script", 24);
var brush = Brushes.Orange;
var container = new Rectangle(myViewModel.ContainerX, myViewModel.ContainerY, myViewModel.ContainerWidth, myViewModel.ContainerHeight);
var stringFormat = new StringFormat {Alignment = StringAlignment.Center, LineAlignment = StringAlignment.Center};
graphics.DrawString(customizationText, font, brush, container, stringFormat);
Yes. Instead of DrawString, use the following sequence of calls:
new GraphicsPath (creates an empty GraphicsPath)
GraphicsPath.AddString (the GraphicsPath object now represents the outline of the text)
Graphics.DrawPath (draws the outline in any Pen you want)
If you need to use GraphicsPath.AddString alongside Graphics.DrawString, you need to convert the font sizes, because Graphics.DrawString expects “point size” while GraphicsPath.AddString expects “em size”. The conversion formula is simply emSize = g.DpiY * pointSize / 72.
Here's a code example:
// assuming g is the Graphics object on which you want to draw the text
GraphicsPath p = new GraphicsPath();
p.AddString(
"My Text String", // text to draw
FontFamily.GenericSansSerif, // or any other font family
(int) FontStyle.Regular, // font style (bold, italic, etc.)
g.DpiY * fontSize / 72, // em size
new Point(0, 0), // location where to draw text
new StringFormat()); // set options here (e.g. center alignment)
g.DrawPath(Pens.Black, p);
// + g.FillPath if you want it filled as well
I'm creating a custom control, part of which is using the Graphics class to draw text to the form. Currently I'm using the following code to display it:
private float _lineHeight { get { return this.Font.Size + 5; } }
private void Control_Paint(object sender, PaintEventArgs e)
{
Graphics g = this.CreateGraphics();
Brush b = new SolidBrush(Colors[7]);
g.DrawString("Hello World!", this.Font, b, 0, 2);
g.DrawString("This has been a test of the emergency drawing system!",
this.Font, b, 0, 2 + _lineHeight);
}
I'm currently using fixedwidth fonts, and I'd like to know how wide the font will display, but there doesn't appear to be any properties for this sort of information. Is there some way of obtaining it? I want it so I can wrap lines properly when displayed.
Yes, you can use MeasureString from the Graphics class
This method returns a SizeF structure that represents
the size, in the units specified by
the PageUnit property, of the string
specified by the text parameter as
drawn with the font parameter.
private void MeasureStringMin(PaintEventArgs e)
{
// Set up string.
string measureString = "Measure String";
Font stringFont = new Font("Arial", 16);
// Measure string.
SizeF stringSize = new SizeF();
stringSize = e.Graphics.MeasureString(measureString, stringFont);
// Draw rectangle representing size of string.
e.Graphics.DrawRectangle(new Pen(Color.Red, 1), 0.0F, 0.0F, stringSize.Width, stringSize.Height);
// Draw string to screen.
e.Graphics.DrawString(measureString, stringFont, Brushes.Black, new PointF(0, 0));
}