public MainWindow()
{
InitializeComponent();
_paint = new PaintingMediator();
CanvasBackService canvasService = new CanvasBackService();
Canvas canvasNode = this.canvasNode;
canvasNode.MouseDown += _paint.OnCanvasMouseDown;
canvasNode.MouseMove += _paint.OnCanvasMouseMove;
canvasNode.MouseUp += _paint.OnCanvasMouseUp;
canvasService.SetCanvas(canvasNode);
_paint.SetCanvasService(canvasService);
_paint.ChangeToolTo(eTool.Pencil);
_paint.ChangeActiveColor("#000000");
SetButtonAsActive(pencil);
}
public void ShouldDrawWithCurrentToolOnCanvas(eTool currentTool)
{
//Given
PaintingMediator paint = new PaintingMediator();
CanvasBackService canvasService = new CanvasBackService();
Canvas canvasNode = new Canvas();
canvasNode.MouseDown += paint.OnCanvasMouseDown;
canvasService.SetCanvas(canvasNode);
paint.SetCanvasService(canvasService);
paint.ChangeToolTo(currentTool);
int numberOfElementsOnCanvas = canvasNode.Children.Count;
//When
ImitateMouseDownOn(canvasNode);
//Then
Assert.AreNotEqual(numberOfElementsOnCanvas, canvasNode.Children.Count);
}
public void ShouldFloodFillConsistentColorSpace()
{
//Given
PaintingMediator paint = new PaintingMediator();
CanvasBackService canvasService = new CanvasBackService();
Canvas canvasNode = new Canvas();
canvasService.SetCanvas(canvasNode);
paint.SetCanvasService(canvasService);
canvasNode.MouseDown += paint.OnCanvasMouseDown;
paint.ChangeToolTo(eTool.Line);
paint.ChangeActiveColor("#ffffff");
ImitateMouseDownOn(canvasNode);
paint.ChangeToolTo(eTool.Fill);
paint.ChangeActiveColor("#000000");
Line drawedLine = canvasNode.Children[0] as Line;
drawedLine.MouseDown += paint.OnCanvasChildClick;
//When
ImitateMouseDownOn(drawedLine);
//Then
Assert.AreEqual(paint.GetActiveColor().ToString(),drawedLine.Stroke.ToString());
}
public void ShouldUndoChanges(int numberOfChangesToUndo)
{
//Given
PaintingMediator paint = new PaintingMediator();
CanvasBackService canvasService = new CanvasBackService();
Canvas canvasNode = new Canvas();
canvasService.SetCanvas(canvasNode);
paint.SetCanvasService(canvasService);
for (int i = 0; i < numberOfChangesToUndo; i++)
{
paint.Rotate(90);
}
//When
for (int i = 0; i < numberOfChangesToUndo; i++)
{
paint.Undo();
}
//Then
int expectedNumberOfChangesOnStack = 0;
Assert.AreEqual(expectedNumberOfChangesOnStack, paint.GetNumberOfDoneChanges());
}
public void ShouldSaveImageToBmp(string expectedSaveLocationString)
{
//Given
PaintingMediator paint = new PaintingMediator();
CanvasBackService canvasService = new CanvasBackService();
Canvas canvasNode = new Canvas();
canvasService.SetCanvas(canvasNode);
paint.SetCanvasService(canvasService);
paint.LoadImage("g:\\test.bmp");
//When
paint.Save(expectedSaveLocationString);
//Then
Uri saveLocation = new Uri(expectedSaveLocationString);
BitmapImage expectedImage = new BitmapImage(saveLocation);
Assert.IsNotNull(expectedImage);
}
public void ShouldRotateCanvas(int degrees)
{
//Given
PaintingMediator paint = new PaintingMediator();
CanvasBackService canvasService = new CanvasBackService();
Canvas canvasNode = new Canvas();
canvasService.SetCanvas(canvasNode);
paint.SetCanvasService(canvasService);
//When
paint.Rotate(degrees);
//Then
Assert.AreEqual(canvasNode.Height, canvasNode.Width);
Assert.AreEqual(canvasNode.Width, canvasNode.Height);
}
public void ShouldReverseCanvas(eDirection direction)
{
//Given
PaintingMediator paint = new PaintingMediator();
CanvasBackService canvasService = new CanvasBackService();
Canvas canvasNode = new Canvas();
canvasService.SetCanvas(canvasNode);
paint.SetCanvasService(canvasService);
//When
paint.Reverse(direction);
//Then
ScaleTransform expectedTransform = new ScaleTransform();
if (direction.Equals(eDirection.Horizontal))
expectedTransform.ScaleY = -1;
else if (direction.Equals(eDirection.Vertical))
expectedTransform.ScaleX = -1;
Assert.AreEqual(expectedTransform.Value, canvasNode.RenderTransform.Value);
}
public void ShouldResizeCanvas(int newWidth, int newHeight)
{
//Given
PaintingMediator paint = new PaintingMediator();
CanvasBackService canvasService = new CanvasBackService();
Canvas canvasNode = new Canvas();
canvasService.SetCanvas(canvasNode);
paint.SetCanvasService(canvasService);
//When
paint.ChangeCanvasSize(newWidth, newHeight);
//Then
Size expectedSize = new Size(newWidth, newHeight);
Assert.AreEqual(expectedSize, canvasService.GetSize());
}
public void ShouldLoadBmpImage(string path)
{
//Given
PaintingMediator paint = new PaintingMediator();
CanvasBackService canvasService = new CanvasBackService();
Canvas canvasNode = new Canvas();
canvasService.SetCanvas(canvasNode);
paint.SetCanvasService(canvasService);
//When
paint.LoadImage(path);
//Then
//Loaded image should be in the background of canvas
Uri pathUri = new Uri(path);
BitmapImage expectedImage = new BitmapImage(pathUri);
ImageBrush expectedBrush = new ImageBrush(expectedImage);
ImageBrush actualBrush = canvasNode.Background as ImageBrush;
Assert.AreEqual(expectedBrush.ImageSource.ToString(), actualBrush.ImageSource.ToString());
}