添加主窗口封面刷新机制和剪裁图片调试日志

- 添加剪裁图片保存时的调试日志输出 - 添加广播机制通知主窗口刷新封面图片 - 优化剪裁画布的显示和缩放功能 - 添加缩放按钮和ZoomContainerView支持 - 添加新的图标资源(ic_done、ic_zoom_in、ic_zoom_out)
2026-04-27 15:59:12 +08:00
parent e62a907378
commit 31ea5c8fbb
10 changed files with 415 additions and 78 deletions
--- a/gallery/src/main/java/cc/winboll/studio/gallery/ZoomContainerView.java
+++ b/gallery/src/main/java/cc/winboll/studio/gallery/ZoomContainerView.java
@@ -0,0 +1,124 @@
+package cc.winboll.studio.gallery;
+
+import android.content.Context;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.Paint;
+import android.util.AttributeSet;
+import android.view.GestureDetector;
+import android.view.MotionEvent;
+import android.view.ScaleGestureDetector;
+import android.view.View;
+import android.widget.FrameLayout;
+
+public class ZoomContainerView extends FrameLayout {
+    private float scaleFactor = 1.0f;
+    private float minScale = 0.5f;
+    private float maxScale = 5.0f;
+    private static final float ZOOM_STEP = 0.25f;
+    
+    private ScaleGestureDetector scaleGestureDetector;
+    private GestureDetector gestureDetector;
+    private Paint borderPaint;
+    
+    public ZoomContainerView(Context context) {
+        super(context);
+        init();
+    }
+    
+    public ZoomContainerView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        init();
+    }
+    
+    public ZoomContainerView(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+        init();
+    }
+    
+    private void init() {
+        setWillNotDraw(false);
+        
+        borderPaint = new Paint();
+        borderPaint.setColor(Color.parseColor("#333333"));
+        borderPaint.setStyle(Paint.Style.STROKE);
+        borderPaint.setStrokeWidth(2);
+        
+        scaleGestureDetector = new ScaleGestureDetector(getContext(), new ScaleGestureDetector.SimpleOnScaleGestureListener() {
+            @Override
+            public boolean onScale(ScaleGestureDetector detector) {
+                scaleFactor *= detector.getScaleFactor();
+                scaleFactor = Math.max(minScale, Math.min(scaleFactor, maxScale));
+                invalidate();
+                requestLayout();
+                return true;
+            }
+        });
+        
+        gestureDetector = new GestureDetector(getContext(), new GestureDetector.SimpleOnGestureListener() {
+            @Override
+            public boolean onDoubleTap(MotionEvent e) {
+                if (scaleFactor > 1.5f) {
+                    scaleFactor = 1.0f;
+                } else {
+                    scaleFactor = 2.0f;
+                }
+                invalidate();
+                requestLayout();
+                return true;
+            }
+        });
+    }
+    
+    public void zoomIn() {
+        scaleFactor = Math.min(maxScale, scaleFactor + ZOOM_STEP);
+        invalidate();
+        requestLayout();
+    }
+    
+    public void zoomOut() {
+        scaleFactor = Math.max(minScale, scaleFactor - ZOOM_STEP);
+        invalidate();
+        requestLayout();
+    }
+    
+    public float getScaleFactor() {
+        return scaleFactor;
+    }
+    
+    public void resetZoom() {
+        scaleFactor = 1.0f;
+        invalidate();
+        requestLayout();
+    }
+    
+    @Override
+    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+        int childCount = getChildCount();
+        if (childCount > 0) {
+            View child = getChildAt(0);
+            measureChild(child, widthMeasureSpec, heightMeasureSpec);
+            int childW = (int) (child.getMeasuredWidth() * scaleFactor);
+            int childH = (int) (child.getMeasuredHeight() * scaleFactor);
+            setMeasuredDimension(
+                MeasureSpec.getSize(widthMeasureSpec),
+                MeasureSpec.getSize(heightMeasureSpec)
+            );
+        }
+    }
+    
+    @Override
+    protected void onDraw(Canvas canvas) {
+        super.onDraw(canvas);
+    }
+    
+    @Override
+    public boolean onTouchEvent(MotionEvent event) {
+        boolean handled = scaleGestureDetector.onTouchEvent(event);
+        if (!scaleGestureDetector.isInProgress()) {
+            handled = gestureDetector.onTouchEvent(event) || handled;
+        }
+        return handled || super.onTouchEvent(event);
+    }
+}