463 lines
15 KiB
C#
463 lines
15 KiB
C#
using DrawFigureLibrary;
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using DrawFigureLibrary.Figures;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Input;
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using System.Windows.Media;
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using System.Windows.Media.Imaging;
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namespace Main
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{
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public partial class MainWindow : Window
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{
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private RenderTargetBitmap? _renderTarget ;
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private int _polyExpected ;
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private List<Point> _polyPoints = new List<Point>() ;
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private DrawFigureLibrary.Figure? _mouseSelected ;
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private bool _isDragging ;
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private Point _lastMouse ;
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private int CanvasW => _renderTarget?.PixelWidth ?? 800;
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private int CanvasH => _renderTarget?.PixelHeight ?? 400;
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private void ClickAddRectangle(object sender, RoutedEventArgs e)
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{
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try
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{
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if (!TryReadName(RectName, out string name)) return;
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if (!TryReadInt(RectX.Text, "X", 0, CanvasW - 1, out int x)) return;
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if (!TryReadInt(RectY.Text, "Y", 0, CanvasH - 1, out int y)) return;
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if (!TryReadInt(RectW.Text, "W", 1, CanvasW, out int w)) return;
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if (!TryReadInt(RectH.Text, "H", 1, CanvasH, out int h)) return;
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ShapeContainer.AddFigure(new RectangleFigure(name, x, y, w, h));
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Upd();
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}
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catch (FormatException)
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{
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MessageBox.Show("Некорректный формат числа");
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}
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catch (Exception ex)
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{
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MessageBox.Show(ex.Message);
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}
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}
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private void ClickAddSquare(object sender, RoutedEventArgs e)
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{
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try
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{
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if (!TryReadName(SquareName, out string name)) return;
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if (!TryReadInt(SquareX.Text, "X", 0, CanvasW - 1, out int x)) return;
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if (!TryReadInt(SquareY.Text, "Y", 0, CanvasH - 1, out int y)) return;
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if (!TryReadInt(SquareSide.Text, "Side", 1, Math.Min(CanvasW, CanvasH), out int side)) return;
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ShapeContainer.AddFigure(new SquareFigure(name, x, y, side));
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Upd();
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}
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catch (FormatException)
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{
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MessageBox.Show("Некорректный формат числа");
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}
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catch (Exception ex)
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{
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MessageBox.Show(ex.Message);
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}
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}
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private void ClickAddEllipse(object sender, RoutedEventArgs e)
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{
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try
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{
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if (!TryReadName(EllipseName, out string name)) return;
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if (!TryReadInt(EllipseX.Text, "X", 0, CanvasW - 1, out int x)) return;
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if (!TryReadInt(EllipseY.Text, "Y", 0, CanvasH - 1, out int y)) return;
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if (!TryReadInt(EllipseW.Text, "W", 1, CanvasW, out int w)) return;
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if (!TryReadInt(EllipseH.Text, "H", 1, CanvasH, out int h)) return;
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ShapeContainer.AddFigure(new EllipseFigure(name, x, y, w, h));
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Upd();
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}
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catch (FormatException)
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{
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MessageBox.Show("Некорректный формат числа");
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}
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catch (Exception ex)
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{
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MessageBox.Show(ex.Message);
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}
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}
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private void ClickAddCircle(object sender, RoutedEventArgs e)
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{
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try
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{
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if (!TryReadName(CircleName, out string name)) return;
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if (!TryReadInt(CircleX.Text, "X", 0, CanvasW - 1, out int x)) return;
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if (!TryReadInt(CircleY.Text, "Y", 0, CanvasH - 1, out int y)) return;
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if (!TryReadInt(CircleD.Text, "Диаметр", 1, Math.Min(CanvasW, CanvasH), out int d)) return;
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ShapeContainer.AddFigure(new CircleFigure(name, x, y, d));
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Upd();
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}
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catch (FormatException)
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{
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MessageBox.Show("Некорректный формат числа");
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}
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catch (Exception ex)
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{
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MessageBox.Show(ex.Message);
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}
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}
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private void ClickPolyStart(object sender, RoutedEventArgs e)
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{
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try
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{
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string name = PolyName.Text.Trim();
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if (!NameIsValid(name)) throw new Exception("Имя пустое или уже занято.");
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_polyExpected = int.Parse(PolyCount.Text);
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if (_polyExpected < 3) throw new Exception("Минимум 3 вершины.");
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_polyPoints = new List<Point>();
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PolyCount.IsEnabled = false;
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PolyX.IsEnabled = true;
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PolyY.IsEnabled = true;
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PolyAddPointBtn.IsEnabled = true;
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PolyFinishBtn.IsEnabled = false;
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PolyStatus.Text = $"Точек: 0 / {_polyExpected}";
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}
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catch (FormatException)
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{
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MessageBox.Show("Некорректный формат числа");
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}
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catch (Exception ex) {
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MessageBox.Show(ex.Message);
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}
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}
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private void ClickPolyAddPoint(object sender, RoutedEventArgs e)
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{
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try
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{
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int x = int.Parse(PolyX.Text);
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int y = int.Parse(PolyY.Text);
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if (_polyPoints.Count >= _polyExpected) throw new Exception("Все точки уже введены.");
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_polyPoints.Add(new Point(x, y));
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PolyStatus.Text = $"Точек: {_polyPoints.Count} / {_polyExpected}";
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if (_polyPoints.Count == _polyExpected)
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{
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PolyAddPointBtn.IsEnabled = false;
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PolyFinishBtn.IsEnabled = true;
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}
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}
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catch (FormatException)
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{
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MessageBox.Show("Некорректный формат числа");
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}
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catch (Exception ex) {
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MessageBox.Show(ex.Message);
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}
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}
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private void ClickPolyFinish(object sender, RoutedEventArgs e)
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{
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try
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{
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string name = PolyName.Text.Trim();
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if (!NameIsValid(name)) throw new Exception("Имя пустое или уже занято.");
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if (_polyPoints.Count != _polyExpected) throw new Exception("Не все точки введены.");
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ShapeContainer.AddFigure(new PolygonFigure(name, _polyPoints.ToArray()));
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Upd();
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PolyCount.IsEnabled = true;
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PolyX.IsEnabled = false;
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PolyY.IsEnabled = false;
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PolyAddPointBtn.IsEnabled = false;
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PolyFinishBtn.IsEnabled = false;
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PolyStatus.Text = "";
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}
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catch (Exception ex)
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{
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MessageBox.Show(ex.Message);
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}
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}
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private void ClickAddTriangle(object sender, RoutedEventArgs e)
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{
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try
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{
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string name = TriName.Text.Trim();
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if (!NameIsValid(name)) throw new Exception("Имя пустое или уже занято.");
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var a = new Point(int.Parse(Ax.Text), int.Parse(Ay.Text));
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var b = new Point(int.Parse(Bx.Text), int.Parse(By.Text));
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var c = new Point(int.Parse(Cx.Text), int.Parse(Cy.Text));
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ShapeContainer.AddFigure(new Triangle(name, a, b, c));
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Upd();
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}
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catch (FormatException)
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{
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MessageBox.Show("Некорректный формат числа");
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}
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catch (Exception ex)
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{
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MessageBox.Show(ex.Message);
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}
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}
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private void ClickAddTerrainPointSunPointHumanPointText(object sender, RoutedEventArgs e)
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{
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try
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{
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string name = SceneName.Text.Trim();
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if (!NameIsValid(name)) throw new Exception("Имя пустое или уже занято.");
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int x = int.Parse(SceneX.Text);
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int y = int.Parse(SceneY.Text);
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int sceneW = int.Parse(SceneW.Text);
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int sceneH = int.Parse(SceneH.Text);
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ShapeContainer.AddFigure(new TerrainPointSunPointHumanPointText(name, x, y, sceneW, sceneH));
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Upd();
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}
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catch (FormatException)
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{
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MessageBox.Show("Некорректный формат числа");
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}
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catch (Exception ex)
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{
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MessageBox.Show(ex.Message);
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}
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}
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private void ClickMoveSelected(object sender, RoutedEventArgs e)
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{
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try
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{
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var fig = GetSelectedFigureOrThrow();
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int dx = int.Parse(MoveDx.Text);
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int dy = int.Parse(MoveDy.Text);
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fig.MoveBy(dx, dy);
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Redraw();
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}
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catch (FormatException)
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{
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MessageBox.Show("Некорректный формат числа");
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}
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catch (Exception ex)
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{
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MessageBox.Show(ex.Message);
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}
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}
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private void ClickDeleteSelected(object sender, RoutedEventArgs e)
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{
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try
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{
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var fig = GetSelectedFigureOrThrow();
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bool ok = ShapeContainer.RemoveFigure(fig);
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if (!ok) throw new Exception("Фигура для удаления не найдена.");
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Upd();
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}
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catch (Exception ex)
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{
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MessageBox.Show(ex.Message);
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}
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}
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public MainWindow()
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{
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InitializeComponent();
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}
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private void Window_Loaded(object sender, RoutedEventArgs e)
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{
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Init.DrawingImage = DrawingImage;
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int width = (int)DrawingImage.Width;
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int height = (int)DrawingImage.Height;
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if (width <= 0) width = 800;
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if (height <= 0) height = 400;
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_renderTarget = new RenderTargetBitmap(width, height, 96, 96, PixelFormats.Pbgra32);
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DrawingImage.Source = _renderTarget;
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ImgBorder.Width = width;
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ImgBorder.Height = height;
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Upd();
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}
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private void Redraw()
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{
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if (_renderTarget == null) return;
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DrawingVisual drawVis = new DrawingVisual();
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using (var ctx = drawVis.RenderOpen())
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{
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foreach (var fig in ShapeContainer.FigureList)
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{
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fig.Draw(ctx);
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}
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}
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_renderTarget.Clear();
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_renderTarget.Render(drawVis);
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DrawingImage.Source = _renderTarget;
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}
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private void RefreshCombo()
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{
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FigureCombo.ItemsSource = null;
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FigureCombo.ItemsSource = ShapeContainer.FigureList.Select(f => f.Name);
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if (FigureCombo.Items.Count > 0 && FigureCombo.SelectedIndex < 0)
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{
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FigureCombo.SelectedIndex = 0;
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}
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}
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private void Upd()
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{
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Redraw();
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RefreshCombo();
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}
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private bool NameIsValid(string? name)
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{
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if (string.IsNullOrWhiteSpace(name)) return false;
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if (ShapeContainer.FigureList.Any(f => f.Name == name)) return false;
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return true;
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}
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private Figure GetSelectedFigureOrThrow()
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{
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if (FigureCombo.SelectedItem == null) throw new Exception("Фигура не выбрана.");
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string name = FigureCombo.SelectedItem.ToString()!;
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var fig = ShapeContainer.FindByName(name);
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if (fig == null) throw new Exception("Фигура для операции не найдена.");
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return fig;
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}
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private void MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
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{
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var p = e.GetPosition(DrawingImage);
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_mouseSelected =
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ShapeContainer.FigureList
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.AsEnumerable()
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.Reverse()
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.FirstOrDefault(f => f.HitTest(p));
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if (_mouseSelected != null)
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{
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FigureCombo.SelectedItem = _mouseSelected.Name;
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_isDragging = true;
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_lastMouse = p;
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DrawingImage.CaptureMouse();
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e.Handled = true;
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}
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}
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private void MouseMove(object sender, MouseEventArgs e)
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{
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if (!_isDragging || _mouseSelected == null) return;
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if (e.LeftButton != MouseButtonState.Pressed) return;
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var p = e.GetPosition(DrawingImage);
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int dx = (int)Math.Round(p.X - _lastMouse.X);
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int dy = (int)Math.Round(p.Y - _lastMouse.Y);
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if (dx == 0 && dy == 0) return;
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if (_mouseSelected.MoveByChecked(dx, dy))
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{
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_lastMouse = p;
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Redraw();
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}
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e.Handled = true;
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}
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private void MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
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{
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if (!_isDragging) return;
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_isDragging = false;
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_mouseSelected = null;
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DrawingImage.ReleaseMouseCapture();
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e.Handled = true;
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}
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private bool TryReadInt(string raw, string field, int min, int max, out int value)
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{
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if (!int.TryParse(raw?.Trim(), out value))
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{
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MessageBox.Show($"Поле \"{field}\": нужно целое число.");
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return false;
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}
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if (value < min || value > max)
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{
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MessageBox.Show($"Поле \"{field}\": допустимо [{min}..{max}].");
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return false;
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}
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return true;
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}
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private bool TryReadName(TextBox tb, out string name)
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{
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name = (tb.Text ?? "").Trim();
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if (string.IsNullOrWhiteSpace(name))
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{
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MessageBox.Show("Имя фигуры не должно быть пустым.");
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return false;
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}
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if (name.Length > 40)
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{
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MessageBox.Show("Имя фигуры слишком длинное (максимум 40 символов).");
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return false;
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}
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string kostil = name;
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if (ShapeContainer.FigureList.Any(f => string.Equals(f.Name, kostil, StringComparison.OrdinalIgnoreCase)))
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{
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MessageBox.Show("Фигура с таким именем уже существует.");
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return false;
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}
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return true;
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}
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}
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} |