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refactor CropTool.HandleInput a bit

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This commit is contained in:
Colin McMillen 2023-08-04 00:17:11 -04:00
parent 1793fee616
commit c953fa2b47
1 changed files with 29 additions and 26 deletions
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53
Program.cs
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@ -50,7 +50,7 @@ public class CameraInfo {
}
public enum ToolState {
public enum ToolStatus {
Active,
Done,
Canceled
@ -58,15 +58,15 @@ public enum ToolState {
public interface ITool {
ToolState HandleInput(UiGeometry geometry, KeyboardState input, MouseState mouse, Game game);
ToolStatus HandleInput(KeyboardState input, MouseState mouse, Game game);
string Status();
void Draw(UiGeometry geometry, Game game);
}
public class ViewTool : ITool {
public ToolState HandleInput(UiGeometry geometry, KeyboardState input, MouseState mouse, Game game) {
return ToolState.Active;
public ToolStatus HandleInput(KeyboardState input, MouseState mouse, Game game) {
return ToolStatus.Active;
}
public string Status() {
@ -84,6 +84,7 @@ public class CropTool : ITool {
Photo activePhoto;
Vector2i mouseDragStart;
Vector2i mouseDragEnd;
bool dragging;
string status = "";
public CropTool(Photo photo) {
@ -92,50 +93,52 @@ public class CropTool : ITool {
mouseDragEnd = new(photo.CropRectangle.Right, photo.CropRectangle.Bottom);
}
public ToolState HandleInput(UiGeometry geometry, KeyboardState input, MouseState mouse, Game game) {
public ToolStatus HandleInput(KeyboardState input, MouseState mouse, Game game) {
Vector2i mousePosition = (Vector2i) mouse.Position;
Vector2i imagePosition = game.ScreenToImage(mousePosition);
if (mouse.IsButtonPressed(MouseButton.Button1)) {
if (geometry.PhotoBox.ContainsInclusive(mousePosition)) {
mouseDragStart = imagePosition;
}
dragging = activePhoto.CropRectangle.Contains(imagePosition.X, imagePosition.Y);
}
if (mouse.IsButtonDown(MouseButton.Button1)) {
if (geometry.PhotoBox.ContainsInclusive(mousePosition)) {
mouseDragEnd = imagePosition;
if (!dragging) {
if (mouse.IsButtonPressed(MouseButton.Button1)) {
mouseDragStart = imagePosition;
}
if (mouse.IsButtonDown(MouseButton.Button1)) {
mouseDragEnd = imagePosition;
}
var (left, right, top, bottom) = GetCrop();
Vector2i size = new(right - left, bottom - top);
status = $"({left}, {top}) {size.X}x{size.Y}";
Rectangle crop = Rectangle.Empty;
if (size.X > 0 && size.Y > 0) {
crop = Rectangle.FromLTRB(left, top, right, bottom);
if (left != right && top != bottom) {
activePhoto.CropRectangle = Rectangle.FromLTRB(left, top, right, bottom);
} else {
activePhoto.CropRectangle = Rectangle.Empty;
}
activePhoto.CropRectangle = crop;
} else {
// FIXME
}
Rectangle r = activePhoto.CropRectangle;
status = $"({r.Left}, {r.Top}) {r.Width}x{r.Height}";
if (input.IsKeyPressed(Keys.Enter)) {
return ToolState.Done;
return ToolStatus.Done;
}
if (input.IsKeyPressed(Keys.Escape)) {
activePhoto.CropRectangle = Rectangle.Empty;
return ToolState.Canceled;
return ToolStatus.Canceled;
}
return ToolState.Active;
return ToolStatus.Active;
}
// left, right, top, bottom
(int, int, int, int) GetCrop() {
// FIXME: this expects the start point in the top left and the end point
// in the bottom right; some sign flipping needs to occur to make anchors
// in other direction work well.
// in other directions work well.
Vector2i start = mouseDragStart;
Vector2i end = mouseDragEnd;
// FIXME: choose the aspect ratio based on the original image aspect ratio.
@ -553,10 +556,10 @@ public class Game : GameWindow {
}
// Delegate input to the active tool.
ToolState state = activeTool.HandleInput(geometry, KeyboardState, MouseState, this);
ToolStatus status = activeTool.HandleInput(KeyboardState, MouseState, this);
// Change back to the default tool if the active tool is done.
if (state != ToolState.Active) {
if (status != ToolStatus.Active) {
activeTool = viewTool;
}
}