Arc Text (May 13, 2022)

[VeLC]

Draws text along an arc

 

 

This is basically dpy's Circle Text plugin with a different UI and better math for proportional fonts

Also in Effects > Text Formations

 

Versions:

1.0(20220418) - Initial Release

1.1(20220420) - Now works with selection and slightly shorter UI

1.2(20220421) - Update code to make it compatible with CodeLab v6.1 (and below?). Also, detects if user canceled.

1.3(20220428) - Now works faster if there are multiple selections

1.4(20220506) - Fix space character not rendering when Character Spacing is zero and slightly shorter UI

1.5(20220513) - Code Update and slightly shorter UI

 

CodeLab Code

License: LPGL-3.0

 

Spoiler

// Name: Arc Text
// Submenu: Text Formations
// Author: Louie Velarde
// Title: Arc Text
// Version: 1.5
// Desc: Draws text along an arc
// Keywords: arc text|circle text|circular text
// URL: https://forums.getpaint.net/topic/119904-arc-text/
// Help: https://forums.getpaint.net/topic/119904-arc-text/
// Force Single Render Call
#region UICode
TextboxControl text = ""; // [3600]
IntSliderControl repeat = 1; // [1,360] Repeat
FontFamily fontFamily = new FontFamily("Arial"); // 
IntSliderControl fontSize = 12; // [8,288] 
CheckboxControl bold = false; // Bold
PanSliderControl center = Pair.Create(0.000, 0.000); // Center
ListBoxControl alignment = 0; // |Start Position|Center Position|End Position
AngleControl position = 135; // [0,360] 
CheckboxControl clockwise = true; // Clockwise
CheckboxControl useAngle = true; // Calculate character spacing based on arc angle
CheckboxControl endSpace = false; // Append space after last character
IntSliderControl charSpacing = 0; // [0,100] {!useAngle} Character Spacing
IntSliderControl angle = 90; // [0,360] {useAngle} Arc Angle
IntSliderControl radius = 150; // [1,1000] Arc Radius
#endregion

bool rendered;

void PreRender(Surface dst, Surface src)
{
    rendered = false;
}

void Render(Surface dst, Surface src, Rectangle rect)
{
    if (rendered) return;
    rendered = true;

    rect = EnvironmentParameters.SelectionBounds;
    dst.CopySurface(src, rect.Location, rect);

    if (text == string.Empty) return;
    
    StringBuilder line = new StringBuilder(text);
    for (int i = 2; i <= repeat; ++i)
    {
        if (IsCancelRequested) return;
        line.Append(text);
    }
    using (Graphics g = new RenderArgs(dst).Graphics)
    using (Region gClipRegion = new Region(rect))
    using (Font font = new Font(fontFamily, fontSize, bold ? FontStyle.Bold : FontStyle.Regular))
    using (Brush brush = new SolidBrush(EnvironmentParameters.PrimaryColor))
    {
        g.Clip = gClipRegion;
        g.SmoothingMode = SmoothingMode.AntiAlias;
        g.TextRenderingHint = TextRenderingHint.AntiAlias;

        double translateX = rect.Left + (center.First + 1) / 2 * rect.Width;
        double translateY = rect.Top + (center.Second + 1) / 2 * rect.Height;
        g.TranslateTransform((float) translateX, (float) translateY);

        StringFormat format = new StringFormat(StringFormat.GenericTypographic);
        format.FormatFlags |= StringFormatFlags.MeasureTrailingSpaces;
        format.FormatFlags |= StringFormatFlags.NoFontFallback;

        SizeF[] sizes = new SizeF[line.Length];
        double totalWidths = 0;
        double totalHeights = 0;

        for (int i = 0; i < line.Length; ++i)
        {
            if (IsCancelRequested) return;
            sizes[i] = g.MeasureString(line[i].ToString(), font, short.MaxValue, format);
            totalWidths += sizes[i].Width;
            totalHeights += sizes[i].Height;
        }
        double height = totalHeights / line.Length;

        double arcLength;
        if (useAngle)
        {
            arcLength = Math.PI * radius * angle / 180;
        }
        else
        {
            arcLength = totalWidths + charSpacing * (line.Length - 1);
            if (endSpace) arcLength += charSpacing;
        }
        double arcAngle = arcLength * 180 / Math.PI / radius;
        double spaceLength = (arcLength - totalWidths) / (line.Length - (endSpace ? 0 : 1));
        double spaceAngle = spaceLength * 180 / Math.PI / radius;

        int s = clockwise ? 1 : -1;

        switch (alignment)
        {
            case 0: g.RotateTransform((float) (s * 90 - position)); break;
            case 1: g.RotateTransform((float) (s * 90 - position - s * arcAngle / 2)); break;
            case 2: g.RotateTransform((float) (s * 90 - position - s * arcAngle)); break;
        }
        double halfCharAngle = sizes[0].Width * s * 90 / Math.PI / radius;
        g.RotateTransform((float) (halfCharAngle));

        float y = (float) (clockwise ? -radius : radius - height);
        g.DrawString(line[0].ToString(), font, brush, sizes[0].Width / -2, y, format);

        for (int i = 1; i < line.Length; ++i)
        {
            if (IsCancelRequested) return;
            g.RotateTransform((float) (halfCharAngle + s * spaceAngle));
            halfCharAngle = sizes[i].Width * s * 90 / Math.PI / radius;
            g.RotateTransform((float) (halfCharAngle));
            g.DrawString(line[i].ToString(), font, brush, sizes[i].Width / -2, y, format);
        }
    }
}

 

 

ArcText.zip

 

Edited May 13, 2022 by VeLC
Version 1.5

[Panchdara]

Thanks! Question though. I see that in your ArcText.zip file the velc.ArcText.dll has file size 15872 and the install batch file has size 2842.

 

I copied your code and placed in CodeLab and built the effect to ArcText.zip (on my desktop) and see the file sizes have changed to ArcText.dll == 15360 and the install batch file to 2832.

 

Is there any reason? Is it due to .NET call differences? (version 6.0.3)??

 

Just asking. Works though. 👍

 

edit: figured the batch file sizes (velc.)

Edited April 18, 2022 by Panchdara

[otuncelli]

11 hours ago, Panchdara said:

I copied your code and placed in CodeLab and built the effect to ArcText.zip (on my desktop) and see the file sizes have changed to ArcText.dll == 15360

 

Probably the lack of window icon causes a smaller file.

[Panchdara]

7 hours ago, otuncelli said:

 

Probably the lack of window icon causes a smaller file.

👍👍

[VeLC]

Version 1.1 - Now works with selection and slightly shorter UI

[NSD]

If Repeat>1 the text disappears.

I used another variable (txt) to make it work. (CodeLab v6.1)

 

StringBuilder sb = new StringBuilder(text);
    for (int i = 2; i <= repeat; ++i)
    {
        sb.Append(text);
    }
string txt = sb.ToString();

 

[VeLC]

Version 1.2 - Update code to make it compatible with CodeLab v6.1 (and below?). Also, detects if user canceled.

[VCS]

how do i install the plugin like circle text to paint.net? can any one please help

[Rle]

👓https://forums.getpaint.net/topic/1708-how-to-install-pluginsgeneral-plugin-troubleshooting-thread/

[homebrew]

how many separate text tools do we got? circle; circular and others. maybe we can agree on something

[BoltBait]

29 minutes ago, homebrew said:

how many separate text tools do we got? circle; circular and others. maybe we can agree on something

 

Just use the one you like and don't bother installing the rest.

[VeLC]

Version 1.3 - Now works faster if there are multiple selections

[VeLC]

Version 1.4 - Fix space character not rendering when Character Spacing is zero and slightly shorter UI

[VeLC]

Version 1.5 - Code Update and slightly shorter UI

[TheBlakeBox]

Is there any reason that command prompt tries open when I open the file? Seems pretty suspicious but let me know if there is a reason.

[mimccravey]

This is great for a top rocker, but what about a bottom rocker where the ends are curved up? I want to do two lines of text; one on the top curved down and one on the bottom curved up. Is there a plugin for that?

[AndrewDavid]

@mimccravey Welcome to the forum. Have a look at this one.

 

 

[Pixey]

And there is also this Plugin here.

[AndrewDavid]

@Pixey Do you see what you did? Pointing to yourself?

Codelab now rejects the posted CS script with 4 errors. Could someone take the time to correct it please? I did half.

     double translateX = rect.Left + (center.First + 1) / 2 * rect.Width;
     double translateY = rect.Top + (center.Second + 1) / 2 * rect.Height;

These posted scripts are valuable lessons to demonstrate plugin development.

[Pixey]

37 minutes ago, AndrewDavid said:

Do you see what you did? Pointing to yourself?

 

😁 Silly me - I was jumping between posts and didn't notice 😂

[Zin]

I needed to change three lines (with the help of the following update thread.

PanSliderControl center = new Vector2Double(0.000, 0.000); // Center
        double translateX = rect.Left + (center.X + 1) / 2 * rect.Width;
        double translateY = rect.Top + (center.Y + 1) / 2 * rect.Height;

 

[AndrewDavid]

Thank you @Zin

Although the corrections now allow compiling in codelab, The Pan Slider Control does not function when the plugin is run. The good news is the ops DLL still works.

I am running Codelab 6.9 and the thread link led me to believe this issue was resolved.

[Tabatha]

Hi I just bought paint and i tried to download this plugin however nothing downloads. super confused. I clicked on the zip file under the picture I have registered my account and nothing. please help.

[Pixey]

Hello @Tabatha an welcome to PDN  

I just checked the download and it is downloading alright.  Please check your download file on your computer.

It sounds like you have the Store Bought version of paint.net, so the Plugins are stored (after unzipping) in a new folder that you must generate.

 

Please read halfway down this page:  https://www.getpaint.net/doc/latest/InstallPlugins.html

[Farv]

Would be nice if radius >1000 was supported