Merge pull request #123 from InkCanvasForClass/beta-PrefacedCorg

合并分支
2025-07-31 15:22:18 +08:00
parent 78f8d9a271 90b85e469d
commit 80d943af23
4 changed files with 394 additions and 108 deletions
@@ -3,6 +3,7 @@ using System.IO;
 using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Controls;
+using System.Windows.Input;
 using System.Windows.Media;
 using System.Windows.Media.Imaging;
 using Ink_Canvas.Helpers;
@@ -219,6 +220,152 @@ namespace Ink_Canvas
            }
        }

+        /// <summary>
+        /// 克隆图片
+        /// </summary>
+        /// <param name="image">要克隆的图片</param>
+        private void CloneImage(Image image)
+        {
+            if (image == null) return;
+
+            try
+            {
+                // 创建图片的副本
+                var clonedImage = new Image
+                {
+                    Source = image.Source,
+                    Width = image.Width,
+                    Height = image.Height,
+                    Stretch = image.Stretch,
+                    RenderTransform = image.RenderTransform?.Clone() as Transform
+                };
+
+                // 设置位置，稍微偏移以避免重叠
+                InkCanvas.SetLeft(clonedImage, InkCanvas.GetLeft(image) + 20);
+                InkCanvas.SetTop(clonedImage, InkCanvas.GetTop(image) + 20);
+
+                // 添加鼠标事件处理，使图片可以被选择
+                clonedImage.MouseDown += UIElement_MouseDown;
+                clonedImage.IsManipulationEnabled = true;
+
+                // 添加到画布
+                inkCanvas.Children.Add(clonedImage);
+
+                // 选择新克隆的图片
+                DeselectUIElement();
+                SelectUIElement(clonedImage);
+
+                // 提交到时间机器以支持撤销
+                timeMachine.CommitElementInsertHistory(clonedImage);
+            }
+            catch (Exception ex)
+            {
+                // 记录错误但不中断程序
+                System.Diagnostics.Debug.WriteLine($"克隆图片时发生错误: {ex.Message}");
+            }
+        }
+
+        /// <summary>
+        /// 克隆图片到新页面
+        /// </summary>
+        /// <param name="image">要克隆的图片</param>
+        private void CloneImageToNewBoard(Image image)
+        {
+            if (image == null) return;
+
+            try
+            {
+                // 创建图片的副本
+                var clonedImage = new Image
+                {
+                    Source = image.Source,
+                    Width = image.Width,
+                    Height = image.Height,
+                    Stretch = image.Stretch,
+                    RenderTransform = image.RenderTransform?.Clone() as Transform
+                };
+
+                // 设置位置，稍微偏移以避免重叠
+                InkCanvas.SetLeft(clonedImage, InkCanvas.GetLeft(image) + 20);
+                InkCanvas.SetTop(clonedImage, InkCanvas.GetTop(image) + 20);
+
+                // 添加鼠标事件处理，使图片可以被选择
+                clonedImage.MouseDown += UIElement_MouseDown;
+                clonedImage.IsManipulationEnabled = true;
+
+                // 创建新页面
+                BtnWhiteBoardAdd_Click(null, null);
+
+                // 添加到新页面的画布
+                inkCanvas.Children.Add(clonedImage);
+
+                // 选择新克隆的图片
+                DeselectUIElement();
+                SelectUIElement(clonedImage);
+
+                // 提交到时间机器以支持撤销
+                timeMachine.CommitElementInsertHistory(clonedImage);
+            }
+            catch (Exception ex)
+            {
+                // 记录错误但不中断程序
+                System.Diagnostics.Debug.WriteLine($"克隆图片到新页面时发生错误: {ex.Message}");
+            }
+        }
+
+        /// <summary>
+        /// 缩放图片
+        /// </summary>
+        /// <param name="image">要缩放的图片</param>
+        /// <param name="scaleFactor">缩放因子（大于1为放大，小于1为缩小）</param>
+        private void ScaleImage(Image image, double scaleFactor)
+        {
+            if (image == null) return;
+
+            try
+            {
+                // 获取当前的变换
+                var transformGroup = image.RenderTransform as TransformGroup ?? new TransformGroup();
+
+                // 查找现有的缩放变换
+                ScaleTransform scaleTransform = null;
+                foreach (Transform transform in transformGroup.Children)
+                {
+                    if (transform is ScaleTransform st)
+                    {
+                        scaleTransform = st;
+                        break;
+                    }
+                }
+
+                // 如果没有缩放变换，创建一个新的
+                if (scaleTransform == null)
+                {
+                    scaleTransform = new ScaleTransform();
+                    transformGroup.Children.Add(scaleTransform);
+                }
+
+                // 设置缩放中心为图片中心
+                scaleTransform.CenterX = image.ActualWidth / 2;
+                scaleTransform.CenterY = image.ActualHeight / 2;
+
+                // 应用缩放因子
+                scaleTransform.ScaleX *= scaleFactor;
+                scaleTransform.ScaleY *= scaleFactor;
+
+                // 应用变换
+                image.RenderTransform = transformGroup;
+
+                // 提交到时间机器以支持撤销
+                // 注意：缩放操作目前不支持撤销，因为需要更复杂的历史记录机制
+            }
+            catch (Exception ex)
+            {
+                // 记录错误但不中断程序
+                System.Diagnostics.Debug.WriteLine($"缩放图片时发生错误: {ex.Message}");
+            }
+        }
+
        /// <summary>
        /// 删除图片
        /// </summary>
@@ -166,6 +166,7 @@ namespace Ink_Canvas {
            }
        }

+// ... existing code ...
        private void ImageRotate45_MouseUp(object sender, MouseButtonEventArgs e) {
            if (lastBorderMouseDownObject != sender) return;

@@ -179,7 +180,7 @@ namespace Ink_Canvas {
            center = m.Transform(center); // 转换为矩阵缩放和旋转的中心点

            // Update matrix to reflect translation/rotation
-            m.RotateAt(45, center.X, center.Y); // 旋转
+            m.RotateAt(45, center.X, center.Y); // 顺时针旋转45度

            var targetStrokes = inkCanvas.GetSelectedStrokes();
            foreach (var stroke in targetStrokes) stroke.Transform(m, false);
@@ -471,7 +472,7 @@ namespace Ink_Canvas {

        // 图片工具栏相关
        private Border borderImageSelectionControl;
-        private double BorderImageSelectionControlWidth = 150.0; // 3个按钮 + 分隔线的实际宽度
+        private double BorderImageSelectionControlWidth = 490.0; // 6个按钮 + 分隔线的实际宽度
        private double BorderImageSelectionControlHeight = 80.0;

        // 元素变化监听相关