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Making the path editor able to zoom and pan

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This commit is contained in:
Lars Brubaker 2023-11-02 18:26:31 -07:00
parent 09798eb4f7
commit 17107dbf14
5 changed files with 335 additions and 187 deletions
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245
MatterControlLib/DesignTools/Operations/PathEditorWidget.cs Normal file
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/*
Copyright (c) 2018, Lars Brubaker, John Lewin
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
The views and conclusions contained in the software and documentation are those
of the authors and should not be interpreted as representing official policies,
either expressed or implied, of the FreeBSD Project.
*/
using MatterHackers.Agg;
using MatterHackers.Agg.Platform;
using MatterHackers.Agg.Transform;
using MatterHackers.Agg.UI;
using MatterHackers.Agg.VertexSource;
using MatterHackers.ImageProcessing;
using MatterHackers.Localizations;
using MatterHackers.VectorMath;
using System;
using static MatterHackers.MatterControl.PartPreviewWindow.GCode2DWidget;
namespace MatterHackers.MatterControl.DesignTools
{
public class PathEditorWidget : GuiWidget
{
private Vector2 lastMousePosition = new Vector2(0, 0);
private Vector2 mouseDownPosition = new Vector2(0, 0);
private double pinchStartScale = 1;
private double startDistanceBetweenPoints = 1;
private ThemeConfig theme;
private Vector2 unscaledRenderOffset = new Vector2(0, 0);
private Action vertexChanged;
private VertexStorage vertexStorage;
public PathEditorWidget(VertexStorage vertexStorage, UndoBuffer undoBuffer, ThemeConfig theme, Action vertexChanged)
{
HAnchor = HAnchor.Stretch;
BackgroundOutlineWidth = 1;
BackgroundColor = theme.BackgroundColor;
BorderColor = theme.TextColor;
Margin = 1;
var topToBottom = this;
SizeChanged += (s, e) =>
{
Height = Width / 2;
};
this.vertexChanged = vertexChanged;
this.theme = theme;
this.vertexStorage = vertexStorage;
var toolBar = new FlowLayoutWidget()
{
HAnchor = HAnchor.Stretch,
VAnchor = VAnchor.Bottom
};
this.AddChild(toolBar);
var menuTheme = ApplicationController.Instance.MenuTheme;
var homeButton = new ThemedTextIconButton("Home".Localize(), StaticData.Instance.LoadIcon("fa-home_16.png", 16, 16).GrayToColor(menuTheme.TextColor), theme)
{
BackgroundColor = theme.SlightShade,
HoverColor = theme.SlightShade.WithAlpha(75),
Margin = new BorderDouble(3, 3, 6, 3),
ToolTipText = "Reset Zoom".Localize()
};
toolBar.AddChild(homeButton);
homeButton.Click += (s, e) =>
{
UiThread.RunOnIdle(() =>
{
ApplicationController.LaunchBrowser("https://www.matterhackers.com/store/c/3d-printer-filament");
});
};
}
public override void OnSizeChanged(EventArgs e)
{
base.OnSizeChanged(e);
}
public ETransformState TransformState { get; set; }
private double layerScale { get; set; } = 1;
private Affine ScalingTransform => Affine.NewScaling(layerScale, layerScale);
private Affine TotalTransform => Affine.NewTranslation(unscaledRenderOffset) * ScalingTransform * Affine.NewTranslation(Width / 2, Height / 2);
public override void OnMouseDown(MouseEventArgs mouseEvent)
{
base.OnMouseDown(mouseEvent);
if (MouseCaptured)
{
if (mouseEvent.NumPositions == 1)
{
mouseDownPosition.X = mouseEvent.X;
mouseDownPosition.Y = mouseEvent.Y;
}
else
{
Vector2 centerPosition = (mouseEvent.GetPosition(1) + mouseEvent.GetPosition(0)) / 2;
mouseDownPosition = centerPosition;
}
lastMousePosition = mouseDownPosition;
if (mouseEvent.NumPositions > 1)
{
startDistanceBetweenPoints = (mouseEvent.GetPosition(1) - mouseEvent.GetPosition(0)).Length;
pinchStartScale = layerScale;
}
}
}
public override void OnMouseMove(MouseEventArgs mouseEvent)
{
base.OnMouseMove(mouseEvent);
Vector2 mousePos = new Vector2();
if (mouseEvent.NumPositions == 1)
{
mousePos = new Vector2(mouseEvent.X, mouseEvent.Y);
}
else
{
Vector2 centerPosition = (mouseEvent.GetPosition(1) + mouseEvent.GetPosition(0)) / 2;
mousePos = centerPosition;
}
if (MouseCaptured)
{
Vector2 mouseDelta = mousePos - lastMousePosition;
switch (TransformState)
{
case ETransformState.Scale:
double zoomDelta = 1;
if (mouseDelta.Y < 0)
{
zoomDelta = 1 - (-1 * mouseDelta.Y / 100);
}
else if (mouseDelta.Y > 0)
{
zoomDelta = 1 + (1 * mouseDelta.Y / 100);
}
Vector2 mousePreScale = mouseDownPosition;
TotalTransform.inverse_transform(ref mousePreScale);
layerScale *= zoomDelta;
Vector2 mousePostScale = mouseDownPosition;
TotalTransform.inverse_transform(ref mousePostScale);
unscaledRenderOffset += (mousePostScale - mousePreScale);
break;
case ETransformState.Move:
default: // also treat everything else like a move
ScalingTransform.inverse_transform(ref mouseDelta);
unscaledRenderOffset += mouseDelta;
break;
}
Invalidate();
}
lastMousePosition = mousePos;
// check if we should do some scaling
if (TransformState == ETransformState.Move
&& mouseEvent.NumPositions > 1
&& startDistanceBetweenPoints > 0)
{
double curDistanceBetweenPoints = (mouseEvent.GetPosition(1) - mouseEvent.GetPosition(0)).Length;
double scaleAmount = pinchStartScale * curDistanceBetweenPoints / startDistanceBetweenPoints;
ScalePartAndFixPosition(mouseEvent, scaleAmount);
}
}
public override void OnMouseWheel(MouseEventArgs mouseEvent)
{
base.OnMouseWheel(mouseEvent);
if (FirstWidgetUnderMouse) // TODO: find a good way to decide if you are what the wheel is trying to do
{
const double deltaFor1Click = 120;
double scaleAmount = (mouseEvent.WheelDelta / deltaFor1Click) * .1;
ScalePartAndFixPosition(mouseEvent, layerScale + layerScale * scaleAmount);
mouseEvent.Handled = true;
Invalidate();
}
}
public override void OnDraw(Graphics2D graphics2D)
{
new VertexSourceApplyTransform(vertexStorage, TotalTransform).RenderCurve(graphics2D, theme.TextColor, 2, true, theme.PrimaryAccentColor.Blend(theme.TextColor, .5), theme.PrimaryAccentColor);
base.OnDraw(graphics2D);
}
public void Zoom(double scaleAmount)
{
ScalePartAndFixPosition(new MouseEventArgs(MouseButtons.None, 0, Width / 2, Height / 2, 0), layerScale * scaleAmount);
Invalidate();
}
private void ScalePartAndFixPosition(MouseEventArgs mouseEvent, double scaleAmount)
{
Vector2 mousePreScale = new Vector2(mouseEvent.X, mouseEvent.Y);
TotalTransform.inverse_transform(ref mousePreScale);
layerScale = scaleAmount;
Vector2 mousePostScale = new Vector2(mouseEvent.X, mouseEvent.Y);
TotalTransform.inverse_transform(ref mousePostScale);
unscaledRenderOffset += (mousePostScale - mousePreScale);
}
}
}