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451 lines
12 KiB
451 lines
12 KiB
// Amplify Shader Editor - Visual Shader Editing Tool
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// Copyright (c) Amplify Creations, Lda <info@amplify.pt>
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using UnityEngine;
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using UnityEditor;
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namespace AmplifyShaderEditor
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{
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public enum MenuAnchor
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{
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TOP_LEFT = 0,
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TOP_CENTER,
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TOP_RIGHT,
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MIDDLE_LEFT,
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MIDDLE_CENTER,
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MIDDLE_RIGHT,
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BOTTOM_LEFT,
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BOTTOM_CENTER,
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BOTTOM_RIGHT,
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NONE
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}
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public enum MenuAutoSize
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{
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MATCH_VERTICAL = 0,
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MATCH_HORIZONTAL,
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NONE
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}
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public class MenuParent
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{
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protected AmplifyShaderEditorWindow m_parentWindow = null;
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protected const float MinimizeButtonXSpacing = 5;
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protected const float MinimizeButtonYSpacing = 5.5f;
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protected const float ResizeAreaWidth = 5;
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protected const float MinimizeCollisionAdjust = 5;
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protected GUIStyle m_style;
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protected GUIContent m_content;
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protected Rect m_maximizedArea;
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protected Rect m_transformedArea;
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protected Rect m_resizeArea;
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protected MenuAnchor m_anchor;
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protected MenuAutoSize m_autoSize;
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protected bool m_isActive = true;
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protected bool m_isMaximized = true;
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protected bool m_lockOnMinimize = false;
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protected bool m_preLockState = false;
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protected Rect m_minimizedArea;
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protected Rect m_minimizeButtonPos;
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protected float m_realWidth;
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protected GUIStyle m_empty = new GUIStyle();
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protected float m_resizeDelta;
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protected bool m_isResizing = false;
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protected bool m_resizable = false;
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protected GUIStyle m_resizeAreaStyle;
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protected bool m_isMouseInside = false;
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protected Vector2 m_currentScrollPos;
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public MenuParent( AmplifyShaderEditorWindow parentWindow, float x, float y, float width, float height, string name, MenuAnchor anchor = MenuAnchor.NONE, MenuAutoSize autoSize = MenuAutoSize.NONE )
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{
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m_parentWindow = parentWindow;
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m_anchor = anchor;
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m_autoSize = autoSize;
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m_maximizedArea = new Rect( x, y, width, height );
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m_content = new GUIContent( GUIContent.none );
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m_content.text = name;
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m_transformedArea = new Rect();
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m_resizeArea = new Rect();
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m_resizeArea.width = ResizeAreaWidth;
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m_resizeAreaStyle = GUIStyle.none;
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m_currentScrollPos = Vector2.zero;
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}
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public void SetMinimizedArea( float x, float y, float width, float height )
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{
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m_minimizedArea = new Rect( x, y, width, height );
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}
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protected void InitDraw( Rect parentPosition, Vector2 mousePosition, int mouseButtonId )
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{
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if ( m_style == null )
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{
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m_style = new GUIStyle( UIUtils.TextArea );
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#if UNITY_2019_3_OR_NEWER
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m_style.normal.background = m_style.normal.scaledBackgrounds[ 0 ];
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m_style.normal.scaledBackgrounds = null;
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m_style.border = new RectOffset( 4, 4, 4, 4 );
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#endif
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m_style.stretchHeight = true;
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m_style.stretchWidth = true;
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m_style.fontSize = ( int ) Constants.DefaultTitleFontSize;
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m_style.fontStyle = FontStyle.Normal;
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Texture minimizeTex = UIUtils.GetCustomStyle( CustomStyle.MaximizeButton ).normal.background;
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m_minimizeButtonPos = new Rect( 0, 0, minimizeTex.width, minimizeTex.height );
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}
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Rect currentArea = m_isMaximized ? m_maximizedArea : m_minimizedArea;
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if ( m_isMaximized )
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{
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if ( m_resizable )
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{
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if ( m_isResizing )
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{
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if ( m_anchor == MenuAnchor.TOP_LEFT )
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m_resizeDelta = ( ParentWindow.CurrentEvent.mousePosition.x - m_maximizedArea.width );
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else if ( m_anchor == MenuAnchor.TOP_RIGHT )
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m_resizeDelta = ParentWindow.CurrentEvent.mousePosition.x - ( parentPosition.width - m_maximizedArea.width);
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}
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}
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m_realWidth = m_maximizedArea.width;
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if ( m_resizable )
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{
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if ( m_anchor == MenuAnchor.TOP_LEFT )
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{
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currentArea.width += m_resizeDelta;
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m_realWidth += m_resizeDelta;
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}
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else if ( m_anchor == MenuAnchor.TOP_RIGHT )
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{
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currentArea.width -= m_resizeDelta;
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m_realWidth -= m_resizeDelta;
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}
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}
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}
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else
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{
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if ( currentArea.x < 0 )
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{
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m_realWidth = currentArea.width + currentArea.x;
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}
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else if ( ( currentArea.x + currentArea.width ) > parentPosition.width )
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{
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m_realWidth = parentPosition.width - currentArea.x;
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}
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if ( m_realWidth < 0 )
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m_realWidth = 0;
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}
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switch ( m_anchor )
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{
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case MenuAnchor.TOP_LEFT:
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{
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m_transformedArea.x = currentArea.x;
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m_transformedArea.y = currentArea.y;
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if ( m_isMaximized )
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{
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m_minimizeButtonPos.x = m_transformedArea.x + m_transformedArea.width - m_minimizeButtonPos.width - MinimizeButtonXSpacing;
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m_minimizeButtonPos.y = m_transformedArea.y + MinimizeButtonYSpacing;
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m_resizeArea.x = m_transformedArea.x + m_transformedArea.width;
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m_resizeArea.y = m_minimizeButtonPos.y;
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m_resizeArea.height = m_transformedArea.height;
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}
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else
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{
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float width = ( m_transformedArea.width - m_transformedArea.x );
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m_minimizeButtonPos.x = m_transformedArea.x + width * 0.5f - m_minimizeButtonPos.width * 0.5f;
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m_minimizeButtonPos.y = m_transformedArea.height * 0.5f - m_minimizeButtonPos.height * 0.5f;
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}
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}
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break;
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case MenuAnchor.TOP_CENTER:
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{
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m_transformedArea.x = parentPosition.width * 0.5f + currentArea.x;
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m_transformedArea.y = currentArea.y;
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}
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break;
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case MenuAnchor.TOP_RIGHT:
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{
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m_transformedArea.x = parentPosition.width - currentArea.x - currentArea.width;
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m_transformedArea.y = currentArea.y;
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if ( m_isMaximized )
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{
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m_minimizeButtonPos.x = m_transformedArea.x + MinimizeButtonXSpacing;
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m_minimizeButtonPos.y = m_transformedArea.y + MinimizeButtonYSpacing;
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m_resizeArea.x = m_transformedArea.x - ResizeAreaWidth;
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m_resizeArea.y = m_minimizeButtonPos.y;
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m_resizeArea.height = m_transformedArea.height;
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}
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else
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{
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float width = ( parentPosition.width - m_transformedArea.x );
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m_minimizeButtonPos.x = m_transformedArea.x + width * 0.5f - m_minimizeButtonPos.width * 0.5f;
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m_minimizeButtonPos.y = m_transformedArea.height * 0.5f - m_minimizeButtonPos.height * 0.5f;
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}
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}
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break;
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case MenuAnchor.MIDDLE_LEFT:
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{
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m_transformedArea.x = currentArea.x;
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m_transformedArea.y = parentPosition.height * 0.5f + currentArea.y;
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}
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break;
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case MenuAnchor.MIDDLE_CENTER:
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{
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m_transformedArea.x = parentPosition.width * 0.5f + currentArea.x;
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m_transformedArea.y = parentPosition.height * 0.5f + currentArea.y;
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}
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break;
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case MenuAnchor.MIDDLE_RIGHT:
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{
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m_transformedArea.x = parentPosition.width - currentArea.x - currentArea.width;
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m_transformedArea.y = parentPosition.height * 0.5f + currentArea.y;
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}
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break;
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case MenuAnchor.BOTTOM_LEFT:
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{
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m_transformedArea.x = currentArea.x;
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m_transformedArea.y = parentPosition.height - currentArea.y - currentArea.height;
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}
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break;
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case MenuAnchor.BOTTOM_CENTER:
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{
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m_transformedArea.x = parentPosition.width * 0.5f + currentArea.x;
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m_transformedArea.y = parentPosition.height - currentArea.y - currentArea.height;
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}
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break;
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case MenuAnchor.BOTTOM_RIGHT:
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{
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m_transformedArea.x = parentPosition.width - currentArea.x - currentArea.width;
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m_transformedArea.y = parentPosition.height - currentArea.y - currentArea.height;
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}
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break;
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case MenuAnchor.NONE:
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{
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m_transformedArea.x = currentArea.x;
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m_transformedArea.y = currentArea.y;
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}
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break;
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}
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switch ( m_autoSize )
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{
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case MenuAutoSize.MATCH_HORIZONTAL:
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{
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m_transformedArea.width = parentPosition.width - m_transformedArea.x;
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m_transformedArea.height = currentArea.height;
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}
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break;
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case MenuAutoSize.MATCH_VERTICAL:
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{
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m_transformedArea.width = currentArea.width;
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m_transformedArea.height = parentPosition.height - m_transformedArea.y;
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}
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break;
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case MenuAutoSize.NONE:
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{
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m_transformedArea.width = currentArea.width;
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m_transformedArea.height = currentArea.height;
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}
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break;
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}
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}
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public virtual void Draw( Rect parentPosition, Vector2 mousePosition, int mouseButtonId, bool hasKeyboadFocus )
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{
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InitDraw( parentPosition, mousePosition, mouseButtonId );
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if ( ParentWindow.CurrentEvent.type == EventType.MouseDrag && ParentWindow.CurrentEvent.button > 0 /*catches both middle and right mouse button*/ )
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{
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m_isMouseInside = IsInside( mousePosition );
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if ( m_isMouseInside )
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{
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m_currentScrollPos.x += Constants.MenuDragSpeed * ParentWindow.CurrentEvent.delta.x;
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if ( m_currentScrollPos.x < 0 )
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m_currentScrollPos.x = 0;
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m_currentScrollPos.y += Constants.MenuDragSpeed * ParentWindow.CurrentEvent.delta.y;
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if ( m_currentScrollPos.y < 0 )
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m_currentScrollPos.y = 0;
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}
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}
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}
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public void PostDraw()
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{
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if ( !m_isMaximized )
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{
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m_transformedArea.height = 35;
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GUI.Label( m_transformedArea, m_content, m_style );
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}
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Color colorBuffer = GUI.color;
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GUI.color = EditorGUIUtility.isProSkin ? Color.white : Color.black;
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bool guiEnabledBuffer = GUI.enabled;
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GUI.enabled = !m_lockOnMinimize;
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Rect buttonArea = m_minimizeButtonPos;
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buttonArea.x -= MinimizeCollisionAdjust;
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buttonArea.width += 2 * MinimizeCollisionAdjust;
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buttonArea.y -= MinimizeCollisionAdjust;
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buttonArea.height += 2 * MinimizeCollisionAdjust;
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if ( m_parentWindow.CameraDrawInfo.CurrentEventType == EventType.Repaint )
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GUI.Label( m_minimizeButtonPos, string.Empty, UIUtils.GetCustomStyle( m_isMaximized ? CustomStyle.MinimizeButton : CustomStyle.MaximizeButton ) );
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if( m_parentWindow.CameraDrawInfo.CurrentEventType == EventType.MouseDown && buttonArea.Contains( m_parentWindow.CameraDrawInfo.MousePosition ) )
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//if ( GUI.Button( buttonArea, string.Empty, m_empty ) )
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{
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m_isMaximized = !m_isMaximized;
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m_resizeDelta = 0;
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}
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if ( m_resizable && m_isMaximized )
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{
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EditorGUIUtility.AddCursorRect( m_resizeArea, MouseCursor.ResizeHorizontal );
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if ( !m_isResizing && GUI.RepeatButton( m_resizeArea, string.Empty, m_resizeAreaStyle ) )
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{
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m_isResizing = true;
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}
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else
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{
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if ( m_isResizing )
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{
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if ( ParentWindow.CurrentEvent.isMouse && ParentWindow.CurrentEvent.type != EventType.MouseDrag )
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{
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m_isResizing = false;
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}
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}
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}
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if ( m_realWidth < buttonArea.width )
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{
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// Auto-minimize
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m_isMaximized = false;
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m_resizeDelta = 0;
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m_isResizing = false;
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}
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else
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{
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float halfSizeWindow = 0.5f * ParentWindow.position.width;
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if ( m_realWidth > halfSizeWindow )
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{
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m_realWidth = 0.5f * ParentWindow.position.width;
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if ( m_resizeDelta > 0 )
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{
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m_resizeDelta = m_realWidth - m_maximizedArea.width;
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}
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else
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{
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m_resizeDelta = m_maximizedArea.width - m_realWidth;
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}
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}
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}
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}
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GUI.enabled = guiEnabledBuffer;
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GUI.color = colorBuffer;
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}
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public void OnLostFocus()
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{
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if ( m_isResizing )
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{
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m_isResizing = false;
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}
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}
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virtual public void Destroy()
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{
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m_empty = null;
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m_resizeAreaStyle = null;
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}
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public float InitialX
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{
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get { return m_maximizedArea.x; }
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set { m_maximizedArea.x = value; }
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}
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public float Width
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{
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get { return m_maximizedArea.width; }
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set { m_maximizedArea.width = value; }
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}
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public float RealWidth
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{
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get { return m_realWidth; }
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}
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public float Height
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{
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get { return m_maximizedArea.height; }
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set { m_maximizedArea.height = value; }
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}
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public Rect Size
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{
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get { return m_maximizedArea; }
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}
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public virtual bool IsInside( Vector2 position )
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{
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if ( !m_isActive )
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return false;
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return m_transformedArea.Contains( position );
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}
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public bool IsMaximized
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{
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get { return m_isMaximized; }
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set { m_isMaximized = value; }
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}
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public Rect TransformedArea
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{
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get { return m_transformedArea; }
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}
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public bool Resizable { set { m_resizable = value; } }
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public bool IsResizing { get { return m_isResizing; } }
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public bool LockOnMinimize
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{
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set
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{
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if ( m_lockOnMinimize == value )
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return;
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m_lockOnMinimize = value;
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if ( value )
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{
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m_preLockState = m_isMaximized;
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m_isMaximized = false;
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}
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else
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{
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m_isMaximized = m_preLockState;
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}
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}
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}
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public bool IsActive
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{
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get { return m_isActive; }
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}
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public AmplifyShaderEditorWindow ParentWindow { get { return m_parentWindow; } set { m_parentWindow = value; } }
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}
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}
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