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Added find and load bitmap feature in PrimitiveDrawingCore.

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Added a PixImage element.
This commit is contained in:
Creeper Lv
2026-01-16 20:14:18 +11:00
parent dce1ff2518
commit 94f557d311
5 changed files with 177 additions and 1 deletions
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135
Progrart.Core/Graphics/PixImage.cs Normal file
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@@ -0,0 +1,135 @@
using Jint;
using Jint.Native;
using Progrart.Core.JSExecution;
using SkiaSharp;
namespace Progrart.Core.Graphics
{
public class PixImage : BaseElement
{
float StrokeWidth;
SKPoint Start;
SKPoint Size;
SKColorF Color;
SKRect sourceRect;
bool useClip = false;
bool IsStroke;
string? imgFile = null;
SKShader? shader = null;
public override void SetupProperties(Engine engine)
{
base.SetupProperties(engine);
if (__object != null)
{
{
JsObject point = new JsObject(engine);
point.Set("x", 0);
point.Set("y", 0);
__object.Set("Position", point);
}
{
JsObject point = new JsObject(engine);
point.Set("x", 0);
point.Set("y", 0);
point.Set("w", 0);
point.Set("h", 0);
__object.Set("Clip", point);
}
__object.Set("StrokeWidth", 1);
__object.Set("IsStroke", true);
__object.Set("UseClip", false);
__object.Set("Source", "");
__object.Set("Color", ProgrartFunctions.color(engine, 1, 1, 1, 1));
{
JsObject point = new JsObject(engine);
point.Set("x", 0);
point.Set("y", 0);
__object.Set("Size", point);
}
}
}
public override void LoadProperties()
{
if (__object is not null)
{
StrokeWidth = (float)__object.Get("StrokeWidth").AsNumber();
IsStroke = (bool)__object.Get("IsStroke").AsBoolean();
useClip = (bool)__object.Get("UseClip").AsBoolean();
{
if (__object.Get("Position") is JsObject Start)
{
this.Start = ProgrartConversion.ObtainSKPointFromJsObject(Start);
}
}
{
if (__object.Get("Size") is JsObject End)
{
this.Size = ProgrartConversion.ObtainSKPointFromJsObject(End);
}
}
{
if (__object.Get("Clip") is JsObject End)
{
this.sourceRect = ProgrartConversion.ObtainSKRectFromJsObject_XYWH_Style(End);
}
}
{
if (__object.Get("Color") is JsObject Color)
{
this.Color = ProgrartConversion.ObtainSKColorFFromJsObject(Color);
}
}
if (__object.Get("Shader") is JsObject shaderObj)
shader = ProgrartConversion.ObtainFromJsObject(shaderObj);
if (__object.Get("Source") is JsString source)
this.imgFile = source.AsString();
}
}
public override void Render(RenderContext context)
{
base.Render(context);
LoadProperties();
SKPoint FinalStartPos = context.TranslatePoint(Start);
SKPoint Size = context.TranslatePoint(this.Size);
if (imgFile == null) return;
var bitmap = context.GetBitmap(imgFile);
if (bitmap == null)
{
return;
}
SKRect dest = new(FinalStartPos.X, FinalStartPos.Y, FinalStartPos.X + Size.X, FinalStartPos.Y + Size.Y);
if (useClip)
{
context.canvas.DrawBitmap(bitmap, sourceRect, dest,
new SKPaint()
{
ColorF = Color,
StrokeWidth = context.TranslateSize(StrokeWidth),
Shader = shader,
IsStroke = IsStroke,
IsAntialias = true
}
);
}
else
{
context.canvas.DrawBitmap(bitmap, new SKRect(0, 0, bitmap.Width, bitmap.Height),
dest,
new SKPaint()
{
ColorF = Color,
StrokeWidth = context.TranslateSize(StrokeWidth),
Shader = shader,
IsStroke = IsStroke,
IsAntialias = true
}
);
}
}
}
}

16
Progrart.Core/JSExecution/ProgrartConversion.cs
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@@ -14,6 +14,22 @@ namespace Progrart.Core.JSExecution
{
return new SKPoint((float)jsObject.Get("x").AsNumber(), (float)jsObject.Get("y").AsNumber());
}
public static SKRect ObtainSKRectFromJsObject(JsObject jsObject)
{
return new SKRect((float)jsObject.Get("x").AsNumber(),
(float)jsObject.Get("y").AsNumber(),
(float)jsObject.Get("w").AsNumber(),
(float)jsObject.Get("h").AsNumber()
);
}
public static SKRect ObtainSKRectFromJsObject_XYWH_Style(JsObject jsObject)
{
float x = (float)jsObject.Get("x").AsNumber();
float y = (float)jsObject.Get("y").AsNumber();
float w = (float)jsObject.Get("w").AsNumber();
float h = (float)jsObject.Get("h").AsNumber();
return new SKRect(x, y, x + w, y + h);
}
public static SKColorF ObtainSKColorFFromJsObject(JsObject jsObject)
{
var r = (float)jsObject.Get("r").AsNumber();

5
Progrart.Core/JSExecution/ProgrartExecutor.cs
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@@ -61,7 +61,9 @@ namespace Progrart.Core.JSExecution
engine.Engine.SetValue("path", path);
engine.Engine.SetValue("path_element", path_element);
engine.Engine.SetValue("circle", circle);
engine.Engine.SetValue("color4", color4);
engine.Engine.SetValue("circle", circle);
engine.Engine.SetValue("piximage", piximage);
engine.Engine.SetValue("piximg", piximage);
engine.Engine.SetValue("color3", color3);
engine.Engine.SetValue("text", text);
engine.Engine.SetValue("color_hex", color_hex);
@@ -124,6 +126,7 @@ namespace Progrart.Core.JSExecution
{
return ProgrartFunctions.CreateVisualRoot(this);
}
public JsObject piximage() => ProgrartFunctions.CreateElement<PixImage>(this);
public JsObject line() => ProgrartFunctions.CreateElement<Line>(this);
public JsObject rectangle() => ProgrartFunctions.CreateElement<Rectangle>(this);
public JsObject roundrect() => ProgrartFunctions.CreateElement<RoundRectangle>(this);

18
Progrart.Core/PrimitiveDrawingCore.cs
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@@ -14,6 +14,24 @@ namespace Progrart.Core
public SKCanvas canvas { get; }
internal IStorageProvider StorageProvider;
Dictionary<string, SKTypeface> Fonts = new Dictionary<string, SKTypeface>();
Dictionary<string, SKBitmap> Bitmaps = new Dictionary<string, SKBitmap>();
public SKBitmap? GetBitmap(string sourceFile)
{
if(Bitmaps.ContainsKey(sourceFile))return Bitmaps[sourceFile];
else
{
var task = StorageProvider.TryOpenRead(sourceFile);
task.Wait();
using var stream = task.Result;
if (stream != null)
{
SKBitmap bitmap = SKBitmap.Decode(stream);
Bitmaps[sourceFile] = bitmap;
return bitmap;
}
return null;
}
}
public SKTypeface? GetFont(string fontName)
{
if (Fonts.ContainsKey(fontName))

4
Progrart.Core/RenderContext.cs
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@@ -14,6 +14,10 @@ namespace Progrart.Core
{
this.DrawingCore = core;
}
public SKBitmap? GetBitmap(string sourceFile)
{
return DrawingCore.GetBitmap(sourceFile);
}
public SKTypeface? GetFont(string fontName)
{
return DrawingCore.GetFont(fontName);