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moved out string transforms into CalculateStringTransform in preparation for #18

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Ell 2024-04-10 18:37:14 +02:00
parent e2635bf9b6
commit e00769a4ed
2 changed files with 42 additions and 38 deletions
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73
MLEM/Font/GenericFont.cs
View file

@ -219,37 +219,8 @@ namespace MLEM.Font {
}
private void DrawString(SpriteBatch batch, CodePointSource text, Vector2 position, Color color, float rotation, Vector2 origin, Vector2 scale, SpriteEffects effects, float layerDepth) {
var (flipX, flipY) = (0F, 0F);
var flippedV = (effects & SpriteEffects.FlipVertically) != 0;
var flippedH = (effects & SpriteEffects.FlipHorizontally) != 0;
if (flippedV || flippedH) {
var size = this.MeasureString(text, false);
if (flippedH) {
origin.X *= -1;
flipX = -size.X;
}
if (flippedV) {
origin.Y *= -1;
flipY = this.LineHeight - size.Y;
}
}
var trans = Matrix.Identity;
if (rotation == 0) {
trans.M11 = flippedH ? -scale.X : scale.X;
trans.M22 = flippedV ? -scale.Y : scale.Y;
trans.M41 = (flipX - origin.X) * trans.M11 + position.X;
trans.M42 = (flipY - origin.Y) * trans.M22 + position.Y;
} else {
var sin = (float) Math.Sin(rotation);
var cos = (float) Math.Cos(rotation);
trans.M11 = (flippedH ? -scale.X : scale.X) * cos;
trans.M12 = (flippedH ? -scale.X : scale.X) * sin;
trans.M21 = (flippedV ? -scale.Y : scale.Y) * -sin;
trans.M22 = (flippedV ? -scale.Y : scale.Y) * cos;
trans.M41 = (flipX - origin.X) * trans.M11 + (flipY - origin.Y) * trans.M21 + position.X;
trans.M42 = (flipX - origin.X) * trans.M12 + (flipY - origin.Y) * trans.M22 + position.Y;
}
var flipSize = effects != SpriteEffects.None ? this.MeasureString(text, false) : Vector2.Zero;
var trans = this.CalculateStringTransform(position, rotation, origin, scale, flipSize, effects);
var offset = Vector2.Zero;
var index = 0;
@ -263,11 +234,11 @@ namespace MLEM.Font {
var charSize = this.MeasureString(character);
var charPos = offset;
if (flippedH)
if ((effects & SpriteEffects.FlipHorizontally) != 0)
charPos.X += charSize.X;
if (flippedV)
if ((effects & SpriteEffects.FlipVertically) != 0)
charPos.Y += charSize.Y - this.LineHeight;
Vector2.Transform(ref charPos, ref trans, out charPos);
charPos = Vector2.Transform(charPos, trans);
this.DrawCharacter(batch, codePoint, character, charPos, color, rotation, scale, effects, layerDepth);
offset.X += charSize.X;
@ -396,6 +367,40 @@ namespace MLEM.Font {
}
}
internal Matrix CalculateStringTransform(Vector2 position, float rotation, Vector2 origin, Vector2 scale, Vector2 flipSize, SpriteEffects effects) {
var (flipX, flipY) = (0F, 0F);
var flippedV = (effects & SpriteEffects.FlipVertically) != 0;
var flippedH = (effects & SpriteEffects.FlipHorizontally) != 0;
if (flippedV || flippedH) {
if (flippedH) {
origin.X *= -1;
flipX = -flipSize.X;
}
if (flippedV) {
origin.Y *= -1;
flipY = this.LineHeight - flipSize.Y;
}
}
var trans = Matrix.Identity;
if (rotation == 0) {
trans.M11 = flippedH ? -scale.X : scale.X;
trans.M22 = flippedV ? -scale.Y : scale.Y;
trans.M41 = (flipX - origin.X) * trans.M11 + position.X;
trans.M42 = (flipY - origin.Y) * trans.M22 + position.Y;
} else {
var sin = (float) Math.Sin(rotation);
var cos = (float) Math.Cos(rotation);
trans.M11 = (flippedH ? -scale.X : scale.X) * cos;
trans.M12 = (flippedH ? -scale.X : scale.X) * sin;
trans.M21 = (flippedV ? -scale.Y : scale.Y) * -sin;
trans.M22 = (flippedV ? -scale.Y : scale.Y) * cos;
trans.M41 = (flipX - origin.X) * trans.M11 + (flipY - origin.Y) * trans.M21 + position.X;
trans.M42 = (flipX - origin.X) * trans.M12 + (flipY - origin.Y) * trans.M22 + position.Y;
}
return trans;
}
private static bool IsTrailingSpace(CodePointSource s, int index) {
while (index < s.Length) {
var (codePoint, length) = s.GetCodePoint(index);

7
Sandbox/GameImpl.cs
View file

@ -11,6 +11,7 @@ using MLEM.Data;
using MLEM.Data.Content;
using MLEM.Extended.Font;
using MLEM.Extensions;
using MLEM.Font;
using MLEM.Formatting;
using MLEM.Formatting.Codes;
using MLEM.Graphics;
@ -70,9 +71,7 @@ public class GameImpl : MlemGame {
//var font = new GenericSpriteFont(LoadContent<SpriteFont>("Fonts/TestFont"));
//var font = new GenericBitmapFont(LoadContent<BitmapFont>("Fonts/Regular"));
var font = new GenericStashFont(system.GetFont(32));
/*
var spriteFont = new GenericSpriteFont(MlemGame.LoadContent<SpriteFont>("Fonts/TestFont"));
*/
this.UiSystem.Style = new UntexturedStyle(this.SpriteBatch) {
Font = font,
TextScale = 0.5F,
@ -258,7 +257,7 @@ public class GameImpl : MlemGame {
}).SetData("Ref", "Main");
this.UiSystem.Add("SpillTest", spillPanel);
/* var regularFont = spriteFont.Font;
var regularFont = spriteFont.Font;
var genericFont = spriteFont;
var index = 0;
@ -294,7 +293,7 @@ public class GameImpl : MlemGame {
genericFont.DrawString(this.SpriteBatch, testString, pos, Color.Green, rotation, origin, scale, effects, 0);
}
this.SpriteBatch.End();
};*/
};
/*var viewport = new BoxingViewportAdapter(this.Window, this.GraphicsDevice, 1280, 720);
var newPanel = new Panel(Anchor.TopLeft, new Vector2(200, 100), new Vector2(10, 10));