// Paste
private void btnPaste_Click(object sender, RoutedEventArgs e)
{
// Xóa bỏ ContentControl của các hình đang chọn (nếu có)
UnSelectedTheLastChildrenOfCanvas();
// Lấy hình ảnh từ Clipboard
BitmapSource bmi = Clipboard.GetImage();
if (bmi != null)
{
// Tạo ImageBrush để fill cho Rectangle
ImageBrush imb = new ImageBrush(bmi);
shape = ShapeCreator.CreateNewShape("TRectangle");
shape.FillColorBrush = imb;
shape.StrokeColorBrush = System.Windows.Media.Brushes.Transparent;
shape.StartPoint = new Point(0, 0);
shape.EndPoint = new Point(imb.ImageSource.Width, imb.ImageSource.Height);
Style controlStyle = (Style)FindResource("DesignerItemStyle");
if (controlStyle != null)
{
shape.controlStyle = controlStyle;
}
shape.draw(isShiftKeyDown, PaintCanvas.Children);
// Show control cho ContentControl
SelectedTheLastChildrenOfCanvas();
isSelectShape = true;
ShapeCommand cmd = new ShapeCommand(PaintCanvas.Children, PaintCanvas.Children[PaintCanvas.Children.Count - 1]);
}
// Thoát chế độ Select
isSelectionTool = false;
}
// Mouse Left Up Event
private void PaintCanvas_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
isMouseDown = false;
EndPoint = e.GetPosition(PaintCanvas);
// Chèn hình
if (shape != null && StartPoint != EndPoint && DrawType == (int)DrawElementType.Shape)
{
// Xóa bỏ hình đã vé trước đó
shape.removeShape(PaintCanvas.Children);
// Vẽ lại hình mới
shape.EndPoint = EndPoint;
shape.draw(isShiftKeyDown, PaintCanvas.Children);
// Đang chọn shape
isSelectShape = true;
SelectedTheLastChildrenOfCanvas();
// Shape này là SelectionTool
isSelectionTool = (CurrentTool == (int)DrawElementType.SelectionTool) ? true : false;
// Tạo một ShapeCommand cho Undo, Redo
if (!isSelectionTool)
{
ShapeCommand cmd = new ShapeCommand(PaintCanvas.Children, PaintCanvas.Children[PaintCanvas.Children.Count - 1]);
}
}
// Chèn văn bản
if (DrawType == (int)DrawElementType.Text)
{
InsertNewTextBox();
}
}
// Open file
private void btnOpenImage_Click(object sender, RoutedEventArgs e)
{
Microsoft.Win32.OpenFileDialog openFileDialog = new Microsoft.Win32.OpenFileDialog();
openFileDialog.Filter = "Png Image|*.png|Jpg Image|*.jpg|Bitmap Image|*.bmp";
openFileDialog.FileName = "MyPaint";
openFileDialog.DefaultExt = ".png";
if ((bool)openFileDialog.ShowDialog())
{
ImageBrush image = new ImageBrush();
image.ImageSource = new BitmapImage(new Uri(@openFileDialog.FileName, UriKind.Relative));
shape = ShapeCreator.CreateNewShape("TRectangle");
shape.FillColorBrush = image;
shape.StrokeColorBrush = System.Windows.Media.Brushes.Transparent;
shape.StartPoint = new Point(0, 0);
shape.EndPoint = new Point(image.ImageSource.Width, image.ImageSource.Height);
shape.draw(isShiftKeyDown, PaintCanvas.Children);
ShapeCommand cmd = new ShapeCommand(PaintCanvas.Children, PaintCanvas.Children[PaintCanvas.Children.Count - 1]);
}
}
// Cut
private void btnCut_Click(object sender, RoutedEventArgs e)
{
if (isSelectionTool)
{
// Xóa ContentControl của Select
removeLastChildren();
shape = ShapeCreator.CreateNewShape("TRectangle");
shape.StartPoint = StartPoint;
shape.EndPoint = EndPoint;
shape.FillColorBrush = System.Windows.Media.Brushes.White;
shape.StrokeColorBrush = System.Windows.Media.Brushes.Transparent;
shape.draw(isShiftKeyDown, PaintCanvas.Children);
// Lưu CroppedBitmapImage vào Clipboard
saveCroppedBitmapToClipboard();
ShapeCommand cmd = new ShapeCommand(PaintCanvas.Children, PaintCanvas.Children[PaintCanvas.Children.Count - 1]);
}
// Thoát chế độ Select
isSelectionTool = false;
}