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DrawMultiLinedText: add an option to provide an image as background #81

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DrawMultiLinedText: add an option to provide an image as background #81

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68 changes: 62 additions & 6 deletions barraider-sdtools/Tools/GraphicsTools.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -162,6 +162,7 @@ public static Image CreateOpacityImage(Image image, float opacity)
/// <summary>
/// Generates one (or more) images where each one has a few letters drawn on them based on the parameters. You can set number of letters and number of lines per key.
/// Use expandToNextImage to decide if you want only one Image returned or multiple if text is too long for one key
/// Will generate a plain background of the provided color.
/// </summary>
/// <param name="text"></param>
/// <param name="currentTextPosition"></param>
Expand All @@ -172,8 +173,55 @@ public static Image CreateOpacityImage(Image image, float opacity)
/// <param name="textColor"></param>
/// <param name="expandToNextImage"></param>
/// <param name="keyDrawStartingPosition"></param>
/// <returns></returns>
public static Image[] DrawMultiLinedText(string text, int currentTextPosition, int lettersPerLine, int numberOfLines, Font font, Color backgroundColor, Color textColor, bool expandToNextImage, PointF keyDrawStartingPosition)
/// <returns>A list of images generated</returns>
public static Image[] DrawMultiLinedText(string text, int currentTextPosition, int lettersPerLine,
int numberOfLines, Font font, Color backgroundColor, Color textColor, bool expandToNextImage,
PointF keyDrawStartingPosition)
{
return DrawMultiLinedTextCommon(text, currentTextPosition, lettersPerLine, numberOfLines, font, backgroundColor, textColor, expandToNextImage, keyDrawStartingPosition);
}

/// <summary>
/// Generates one (or more) images where each one has a few letters drawn on them based on the parameters. You can set number of letters and number of lines per key.
/// Use expandToNextImage to decide if you want only one Image returned or multiple if text is too long for one key
/// Will use the provided background image to generate the text on top of.
/// </summary>
/// <param name="text"></param>
/// <param name="currentTextPosition"></param>
/// <param name="lettersPerLine"></param>
/// <param name="numberOfLines"></param>
/// <param name="font"></param>
/// <param name="backgroundPath"></param>
/// <param name="textColor"></param>
/// <param name="expandToNextImage"></param>
/// <param name="keyDrawStartingPosition"></param>
/// <returns>A list of images generated.</returns>
public static Image[] DrawMultiLinedTextWithBackground(string text, int currentTextPosition, int lettersPerLine,
int numberOfLines, Font font, String backgroundPath, Color textColor, bool expandToNextImage,
PointF keyDrawStartingPosition)
{
Image myBackground = Image.FromFile(backgroundPath);
return DrawMultiLinedTextCommon(text, currentTextPosition, lettersPerLine, numberOfLines, font, Color.Transparent, textColor, expandToNextImage, keyDrawStartingPosition, myBackground);
}

/// <summary>
/// Centralize the code to generate images with text wrapped:
/// Generates one (or more) images where each one has a few letters drawn on them based on the parameters. You can set number of letters and number of lines per key.
/// Use expandToNextImage to decide if you want only one Image returned or multiple if text is too long for one key
/// Use the background image or generate a plain background of the provided color.
/// </summary>
/// <param name="text"></param>
/// <param name="currentTextPosition"></param>
/// <param name="lettersPerLine"></param>
/// <param name="numberOfLines"></param>
/// <param name="font"></param>
/// <param name="backgroundColor"></param>
/// <param name="textColor"></param>
/// <param name="expandToNextImage"></param>
/// <param name="keyDrawStartingPosition"></param>
/// <param name="background"></param>
/// <returns>A list of images generated.</returns>
private static Image[] DrawMultiLinedTextCommon(string text, int currentTextPosition, int lettersPerLine, int numberOfLines, Font font, Color backgroundColor, Color textColor, bool expandToNextImage, PointF keyDrawStartingPosition, Image background = null)
{
float currentWidth = keyDrawStartingPosition.X;
float currentHeight = keyDrawStartingPosition.Y;
Expand All @@ -182,9 +230,17 @@ public static Image[] DrawMultiLinedText(string text, int currentTextPosition, i
Bitmap img = Tools.GenerateGenericKeyImage(out Graphics graphics);
images.Add(img);

// Draw Background
var bgBrush = new SolidBrush(backgroundColor);
graphics.FillRectangle(bgBrush, 0, 0, img.Width, img.Height);
if (background != null)
{
// Use the provided background
graphics.DrawImage(background, 0, 0, img.Width, img.Height);
}
else
{
// Draw Background
var bgBrush = new SolidBrush(backgroundColor);
graphics.FillRectangle(bgBrush, 0, 0, img.Width, img.Height);
}

float lineHeight = img.Height / numberOfLines;
if (numberOfLines == 1)
Expand All @@ -203,7 +259,7 @@ public static Image[] DrawMultiLinedText(string text, int currentTextPosition, i
{
if (expandToNextImage)
{
images.AddRange(DrawMultiLinedText(text, letter, lettersPerLine, numberOfLines, font, backgroundColor, textColor, expandToNextImage, keyDrawStartingPosition));
images.AddRange(DrawMultiLinedTextCommon(text, letter, lettersPerLine, numberOfLines, font, backgroundColor, textColor, expandToNextImage, keyDrawStartingPosition, background));
}
break;
}
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