2024-03-30

doc/31_painting.md

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+# Painting
+
+```java
+@Override
+public void paint(Graphics g) {
+    final Graphics2D graphics2D = (Graphics2D) g;
+	
+}
+```
+
+* `component.paint(Graphics)`
+* `paintComponent(Graphics)` -> `paintBorder(Graphics)` -> `paintChildren(Graphics)`
+
+
+## Graphics2D
+
+
+* `drawString()`
+* `drawImage()`
+* `drawLine()`
+* `drawArc()` / `drawRect()` / `drawOval()` / `drawPolygon()`
+* `draw()`
+* `fillArc()` / `fillRect()` / `fillOval()` / `fillPolygon()`
+* `fill()`
+
+* `rotate()`
+* `scale()`
+* `shear()`
+* `translate()`
+
+### Stroke
+
+```java
+import java.awt.*;
+
+Graphics2D graphics2D = (Graphics2D) g;
+BasicStroke stroke = new BasicStroke(1.f,BasicStroke.CAP_BUTT,BasicStroke.JOIN_MITER,10.f,{10.f},0.f);
+graphics2D.setStroke(stroke);
+```
+#### Join style
+* JOIN_BEVEL
+* JOIN_MITER
+* JOIN_ROUND
+
+#### End-cap style
+* CAP_BUTT
+* CAP_ROUND
+* CAP_SQUARE
+
+### Paint
+* `Color`, `GradientPaint`, `TexturePaint`
+
+```java
+import java.awt.*;
+
+Paint paint = new GradientPaint(x1,y1,color1,x2,y2,color2);
+graphics2D.setPaint(paint);
+```
+
+
+### AffineTransform
+
+* `AffineTransform.getRotateTransform()`
+* `AffineTransform.getScaleTransform()`
+* `AffineTransform.getShearTransform()`
+* `AffineTransform.getTranslateTransform()`