GitBucket
Newer
using UnityEngine;
using UnityEngine.Events;
using UnityEngine.EventSystems;
using System.Collections;
using System.Collections.Generic;
#pragma warning disable 0618 // Disabled warning due to SetVertices being deprecated until new release with SetMesh() is available.
namespace TMPro.Examples
{
public class TMP_TextSelector_B : MonoBehaviour, IPointerEnterHandler, IPointerExitHandler, IPointerClickHandler, IPointerUpHandler
{
public RectTransform TextPopup_Prefab_01;
private RectTransform m_TextPopup_RectTransform;
private TextMeshProUGUI m_TextPopup_TMPComponent;
private const string k_LinkText = "You have selected link <#ffff00>";
private const string k_WordText = "Word Index: <#ffff00>";
private TextMeshProUGUI m_TextMeshPro;
private Canvas m_Canvas;
private Camera m_Camera;
// Flags
private bool isHoveringObject;
private int m_selectedWord = -1;
private int m_selectedLink = -1;
private int m_lastIndex = -1;
private Matrix4x4 m_matrix;
private TMP_MeshInfo[] m_cachedMeshInfoVertexData;
void Awake()
{
m_TextMeshPro = gameObject.GetComponent<TextMeshProUGUI>();
m_Canvas = gameObject.GetComponentInParent<Canvas>();
// Get a reference to the camera if Canvas Render Mode is not ScreenSpace Overlay.
if (m_Canvas.renderMode == RenderMode.ScreenSpaceOverlay)
m_Camera = null;
else
m_Camera = m_Canvas.worldCamera;
// Create pop-up text object which is used to show the link information.
m_TextPopup_RectTransform = Instantiate(TextPopup_Prefab_01) as RectTransform;
m_TextPopup_RectTransform.SetParent(m_Canvas.transform, false);
m_TextPopup_TMPComponent = m_TextPopup_RectTransform.GetComponentInChildren<TextMeshProUGUI>();
m_TextPopup_RectTransform.gameObject.SetActive(false);
}
void OnEnable()
{
// Subscribe to event fired when text object has been regenerated.
TMPro_EventManager.TEXT_CHANGED_EVENT.Add(ON_TEXT_CHANGED);
}
void OnDisable()
{
// UnSubscribe to event fired when text object has been regenerated.
TMPro_EventManager.TEXT_CHANGED_EVENT.Remove(ON_TEXT_CHANGED);
}
void ON_TEXT_CHANGED(Object obj)
{
if (obj == m_TextMeshPro)
{
// Update cached vertex data.
m_cachedMeshInfoVertexData = m_TextMeshPro.textInfo.CopyMeshInfoVertexData();
}
}
void LateUpdate()
{
if (isHoveringObject)
{
// Check if Mouse Intersects any of the characters. If so, assign a random color.
#region Handle Character Selection
int charIndex = TMP_TextUtilities.FindIntersectingCharacter(m_TextMeshPro, Input.mousePosition, m_Camera, true);
// Undo Swap and Vertex Attribute changes.
if (charIndex == -1 || charIndex != m_lastIndex)
{
RestoreCachedVertexAttributes(m_lastIndex);
m_lastIndex = -1;
}
if (charIndex != -1 && charIndex != m_lastIndex && (Input.GetKey(KeyCode.LeftShift) || Input.GetKey(KeyCode.RightShift)))
{
m_lastIndex = charIndex;
// Get the index of the material / sub text object used by this character.
int materialIndex = m_TextMeshPro.textInfo.characterInfo[charIndex].materialReferenceIndex;
// Get the index of the first vertex of the selected character.
int vertexIndex = m_TextMeshPro.textInfo.characterInfo[charIndex].vertexIndex;
// Get a reference to the vertices array.
Vector3[] vertices = m_TextMeshPro.textInfo.meshInfo[materialIndex].vertices;
// Determine the center point of the character.
Vector2 charMidBasline = (vertices[vertexIndex + 0] + vertices[vertexIndex + 2]) / 2;
// Need to translate all 4 vertices of the character to aligned with middle of character / baseline.
// This is needed so the matrix TRS is applied at the origin for each character.
Vector3 offset = charMidBasline;
// Translate the character to the middle baseline.
vertices[vertexIndex + 0] = vertices[vertexIndex + 0] - offset;
vertices[vertexIndex + 1] = vertices[vertexIndex + 1] - offset;
vertices[vertexIndex + 2] = vertices[vertexIndex + 2] - offset;
vertices[vertexIndex + 3] = vertices[vertexIndex + 3] - offset;
float zoomFactor = 1.5f;
// Setup the Matrix for the scale change.
m_matrix = Matrix4x4.TRS(Vector3.zero, Quaternion.identity, Vector3.one * zoomFactor);
// Apply Matrix operation on the given character.
vertices[vertexIndex + 0] = m_matrix.MultiplyPoint3x4(vertices[vertexIndex + 0]);
vertices[vertexIndex + 1] = m_matrix.MultiplyPoint3x4(vertices[vertexIndex + 1]);
vertices[vertexIndex + 2] = m_matrix.MultiplyPoint3x4(vertices[vertexIndex + 2]);
vertices[vertexIndex + 3] = m_matrix.MultiplyPoint3x4(vertices[vertexIndex + 3]);
// Translate the character back to its original position.
vertices[vertexIndex + 0] = vertices[vertexIndex + 0] + offset;
vertices[vertexIndex + 1] = vertices[vertexIndex + 1] + offset;
vertices[vertexIndex + 2] = vertices[vertexIndex + 2] + offset;
vertices[vertexIndex + 3] = vertices[vertexIndex + 3] + offset;
// Change Vertex Colors of the highlighted character
Color32 c = new Color32(255, 255, 192, 255);
// Get a reference to the vertex color
Color32[] vertexColors = m_TextMeshPro.textInfo.meshInfo[materialIndex].colors32;
vertexColors[vertexIndex + 0] = c;
vertexColors[vertexIndex + 1] = c;
vertexColors[vertexIndex + 2] = c;
vertexColors[vertexIndex + 3] = c;
// Get a reference to the meshInfo of the selected character.
TMP_MeshInfo meshInfo = m_TextMeshPro.textInfo.meshInfo[materialIndex];
// Get the index of the last character's vertex attributes.
int lastVertexIndex = vertices.Length - 4;
// Swap the current character's vertex attributes with those of the last element in the vertex attribute arrays.
// We do this to make sure this character is rendered last and over other characters.
meshInfo.SwapVertexData(vertexIndex, lastVertexIndex);
// Need to update the appropriate
m_TextMeshPro.UpdateVertexData(TMP_VertexDataUpdateFlags.All);
}
#endregion
#region Word Selection Handling
//Check if Mouse intersects any words and if so assign a random color to that word.
int wordIndex = TMP_TextUtilities.FindIntersectingWord(m_TextMeshPro, Input.mousePosition, m_Camera);
// Clear previous word selection.
if (m_TextPopup_RectTransform != null && m_selectedWord != -1 && (wordIndex == -1 || wordIndex != m_selectedWord))
{
TMP_WordInfo wInfo = m_TextMeshPro.textInfo.wordInfo[m_selectedWord];
// Iterate through each of the characters of the word.
for (int i = 0; i < wInfo.characterCount; i++)
{
int characterIndex = wInfo.firstCharacterIndex + i;
// Get the index of the material / sub text object used by this character.
int meshIndex = m_TextMeshPro.textInfo.characterInfo[characterIndex].materialReferenceIndex;
// Get the index of the first vertex of this character.
int vertexIndex = m_TextMeshPro.textInfo.characterInfo[characterIndex].vertexIndex;
// Get a reference to the vertex color
Color32[] vertexColors = m_TextMeshPro.textInfo.meshInfo[meshIndex].colors32;
Color32 c = vertexColors[vertexIndex + 0].Tint(1.33333f);
vertexColors[vertexIndex + 0] = c;
vertexColors[vertexIndex + 1] = c;
vertexColors[vertexIndex + 2] = c;
vertexColors[vertexIndex + 3] = c;
}
// Update Geometry
m_TextMeshPro.UpdateVertexData(TMP_VertexDataUpdateFlags.All);
m_selectedWord = -1;
}
// Word Selection Handling
if (wordIndex != -1 && wordIndex != m_selectedWord && !(Input.GetKey(KeyCode.LeftShift) || Input.GetKey(KeyCode.RightShift)))
{
m_selectedWord = wordIndex;
TMP_WordInfo wInfo = m_TextMeshPro.textInfo.wordInfo[wordIndex];
// Iterate through each of the characters of the word.
for (int i = 0; i < wInfo.characterCount; i++)
{
int characterIndex = wInfo.firstCharacterIndex + i;
// Get the index of the material / sub text object used by this character.
int meshIndex = m_TextMeshPro.textInfo.characterInfo[characterIndex].materialReferenceIndex;
int vertexIndex = m_TextMeshPro.textInfo.characterInfo[characterIndex].vertexIndex;
// Get a reference to the vertex color
Color32[] vertexColors = m_TextMeshPro.textInfo.meshInfo[meshIndex].colors32;
Color32 c = vertexColors[vertexIndex + 0].Tint(0.75f);
vertexColors[vertexIndex + 0] = c;
vertexColors[vertexIndex + 1] = c;
vertexColors[vertexIndex + 2] = c;
vertexColors[vertexIndex + 3] = c;
}
// Update Geometry
m_TextMeshPro.UpdateVertexData(TMP_VertexDataUpdateFlags.All);
}
#endregion
#region Example of Link Handling
// Check if mouse intersects with any links.
int linkIndex = TMP_TextUtilities.FindIntersectingLink(m_TextMeshPro, Input.mousePosition, m_Camera);
// Clear previous link selection if one existed.
if ((linkIndex == -1 && m_selectedLink != -1) || linkIndex != m_selectedLink)
{
m_TextPopup_RectTransform.gameObject.SetActive(false);
m_selectedLink = -1;
}
// Handle new Link selection.
if (linkIndex != -1 && linkIndex != m_selectedLink)
{
m_selectedLink = linkIndex;
TMP_LinkInfo linkInfo = m_TextMeshPro.textInfo.linkInfo[linkIndex];
// Debug.Log("Link ID: \"" + linkInfo.GetLinkID() + "\" Link Text: \"" + linkInfo.GetLinkText() + "\""); // Example of how to retrieve the Link ID and Link Text.
Vector3 worldPointInRectangle;
RectTransformUtility.ScreenPointToWorldPointInRectangle(m_TextMeshPro.rectTransform, Input.mousePosition, m_Camera, out worldPointInRectangle);
switch (linkInfo.GetLinkID())
{
case "id_01": // 100041637: // id_01
m_TextPopup_RectTransform.position = worldPointInRectangle;
m_TextPopup_RectTransform.gameObject.SetActive(true);
m_TextPopup_TMPComponent.text = k_LinkText + " ID 01";
break;
case "id_02": // 100041638: // id_02
m_TextPopup_RectTransform.position = worldPointInRectangle;
m_TextPopup_RectTransform.gameObject.SetActive(true);
m_TextPopup_TMPComponent.text = k_LinkText + " ID 02";
break;
}
}
#endregion
}
else
{
// Restore any character that may have been modified
if (m_lastIndex != -1)
{
RestoreCachedVertexAttributes(m_lastIndex);
m_lastIndex = -1;
}
}
}
public void OnPointerEnter(PointerEventData eventData)
{
//Debug.Log("OnPointerEnter()");
isHoveringObject = true;
}
public void OnPointerExit(PointerEventData eventData)
{
//Debug.Log("OnPointerExit()");
isHoveringObject = false;
}
public void OnPointerClick(PointerEventData eventData)
{
//Debug.Log("Click at POS: " + eventData.position + " World POS: " + eventData.worldPosition);
// Check if Mouse Intersects any of the characters. If so, assign a random color.
#region Character Selection Handling
/*
int charIndex = TMP_TextUtilities.FindIntersectingCharacter(m_TextMeshPro, Input.mousePosition, m_Camera, true);
if (charIndex != -1 && charIndex != m_lastIndex)
{
//Debug.Log("Character [" + m_TextMeshPro.textInfo.characterInfo[index].character + "] was selected at POS: " + eventData.position);
m_lastIndex = charIndex;
Color32 c = new Color32((byte)Random.Range(0, 255), (byte)Random.Range(0, 255), (byte)Random.Range(0, 255), 255);
int vertexIndex = m_TextMeshPro.textInfo.characterInfo[charIndex].vertexIndex;
UIVertex[] uiVertices = m_TextMeshPro.textInfo.meshInfo.uiVertices;
uiVertices[vertexIndex + 0].color = c;
uiVertices[vertexIndex + 1].color = c;
uiVertices[vertexIndex + 2].color = c;
uiVertices[vertexIndex + 3].color = c;
m_TextMeshPro.canvasRenderer.SetVertices(uiVertices, uiVertices.Length);
}
*/
#endregion
#region Word Selection Handling
//Check if Mouse intersects any words and if so assign a random color to that word.
/*
int wordIndex = TMP_TextUtilities.FindIntersectingWord(m_TextMeshPro, Input.mousePosition, m_Camera);
// Clear previous word selection.
if (m_TextPopup_RectTransform != null && m_selectedWord != -1 && (wordIndex == -1 || wordIndex != m_selectedWord))
{
TMP_WordInfo wInfo = m_TextMeshPro.textInfo.wordInfo[m_selectedWord];
// Get a reference to the uiVertices array.
UIVertex[] uiVertices = m_TextMeshPro.textInfo.meshInfo.uiVertices;
// Iterate through each of the characters of the word.
for (int i = 0; i < wInfo.characterCount; i++)
{
int vertexIndex = m_TextMeshPro.textInfo.characterInfo[wInfo.firstCharacterIndex + i].vertexIndex;
Color32 c = uiVertices[vertexIndex + 0].color.Tint(1.33333f);
uiVertices[vertexIndex + 0].color = c;
uiVertices[vertexIndex + 1].color = c;
uiVertices[vertexIndex + 2].color = c;
uiVertices[vertexIndex + 3].color = c;
}
m_TextMeshPro.canvasRenderer.SetVertices(uiVertices, uiVertices.Length);
m_selectedWord = -1;
}
// Handle word selection
if (wordIndex != -1 && wordIndex != m_selectedWord)
{
m_selectedWord = wordIndex;
TMP_WordInfo wInfo = m_TextMeshPro.textInfo.wordInfo[wordIndex];
// Get a reference to the uiVertices array.
UIVertex[] uiVertices = m_TextMeshPro.textInfo.meshInfo.uiVertices;
// Iterate through each of the characters of the word.
for (int i = 0; i < wInfo.characterCount; i++)
{
int vertexIndex = m_TextMeshPro.textInfo.characterInfo[wInfo.firstCharacterIndex + i].vertexIndex;
Color32 c = uiVertices[vertexIndex + 0].color.Tint(0.75f);
uiVertices[vertexIndex + 0].color = c;
uiVertices[vertexIndex + 1].color = c;
uiVertices[vertexIndex + 2].color = c;
uiVertices[vertexIndex + 3].color = c;
}
m_TextMeshPro.canvasRenderer.SetVertices(uiVertices, uiVertices.Length);
}
*/
#endregion
#region Link Selection Handling
/*
// Check if Mouse intersects any words and if so assign a random color to that word.
int linkIndex = TMP_TextUtilities.FindIntersectingLink(m_TextMeshPro, Input.mousePosition, m_Camera);
if (linkIndex != -1)
{
TMP_LinkInfo linkInfo = m_TextMeshPro.textInfo.linkInfo[linkIndex];
int linkHashCode = linkInfo.hashCode;
//Debug.Log(TMP_TextUtilities.GetSimpleHashCode("id_02"));
switch (linkHashCode)
{
case 291445: // id_01
if (m_LinkObject01 == null)
m_LinkObject01 = Instantiate(Link_01_Prefab);
else
{
m_LinkObject01.gameObject.SetActive(true);
}
break;
case 291446: // id_02
break;
}
// Example of how to modify vertex attributes like colors
#region Vertex Attribute Modification Example
UIVertex[] uiVertices = m_TextMeshPro.textInfo.meshInfo.uiVertices;
Color32 c = new Color32((byte)Random.Range(0, 255), (byte)Random.Range(0, 255), (byte)Random.Range(0, 255), 255);
for (int i = 0; i < linkInfo.characterCount; i++)
{
TMP_CharacterInfo cInfo = m_TextMeshPro.textInfo.characterInfo[linkInfo.firstCharacterIndex + i];
if (!cInfo.isVisible) continue; // Skip invisible characters.
int vertexIndex = cInfo.vertexIndex;
uiVertices[vertexIndex + 0].color = c;
uiVertices[vertexIndex + 1].color = c;
uiVertices[vertexIndex + 2].color = c;
uiVertices[vertexIndex + 3].color = c;
}
m_TextMeshPro.canvasRenderer.SetVertices(uiVertices, uiVertices.Length);
#endregion
}
*/
#endregion
}
public void OnPointerUp(PointerEventData eventData)
{
//Debug.Log("OnPointerUp()");
}
void RestoreCachedVertexAttributes(int index)
{
if (index == -1 || index > m_TextMeshPro.textInfo.characterCount - 1) return;
// Get the index of the material / sub text object used by this character.
int materialIndex = m_TextMeshPro.textInfo.characterInfo[index].materialReferenceIndex;
// Get the index of the first vertex of the selected character.
int vertexIndex = m_TextMeshPro.textInfo.characterInfo[index].vertexIndex;
// Restore Vertices
// Get a reference to the cached / original vertices.
Vector3[] src_vertices = m_cachedMeshInfoVertexData[materialIndex].vertices;
// Get a reference to the vertices that we need to replace.
Vector3[] dst_vertices = m_TextMeshPro.textInfo.meshInfo[materialIndex].vertices;
// Restore / Copy vertices from source to destination
dst_vertices[vertexIndex + 0] = src_vertices[vertexIndex + 0];
dst_vertices[vertexIndex + 1] = src_vertices[vertexIndex + 1];
dst_vertices[vertexIndex + 2] = src_vertices[vertexIndex + 2];
dst_vertices[vertexIndex + 3] = src_vertices[vertexIndex + 3];
// Restore Vertex Colors
// Get a reference to the vertex colors we need to replace.
Color32[] dst_colors = m_TextMeshPro.textInfo.meshInfo[materialIndex].colors32;
// Get a reference to the cached / original vertex colors.
Color32[] src_colors = m_cachedMeshInfoVertexData[materialIndex].colors32;
// Copy the vertex colors from source to destination.
dst_colors[vertexIndex + 0] = src_colors[vertexIndex + 0];
dst_colors[vertexIndex + 1] = src_colors[vertexIndex + 1];
dst_colors[vertexIndex + 2] = src_colors[vertexIndex + 2];
dst_colors[vertexIndex + 3] = src_colors[vertexIndex + 3];
// Restore UV0S
// UVS0
Vector2[] src_uv0s = m_cachedMeshInfoVertexData[materialIndex].uvs0;
Vector2[] dst_uv0s = m_TextMeshPro.textInfo.meshInfo[materialIndex].uvs0;
dst_uv0s[vertexIndex + 0] = src_uv0s[vertexIndex + 0];
dst_uv0s[vertexIndex + 1] = src_uv0s[vertexIndex + 1];
dst_uv0s[vertexIndex + 2] = src_uv0s[vertexIndex + 2];
dst_uv0s[vertexIndex + 3] = src_uv0s[vertexIndex + 3];
// UVS2
Vector2[] src_uv2s = m_cachedMeshInfoVertexData[materialIndex].uvs2;
Vector2[] dst_uv2s = m_TextMeshPro.textInfo.meshInfo[materialIndex].uvs2;
dst_uv2s[vertexIndex + 0] = src_uv2s[vertexIndex + 0];
dst_uv2s[vertexIndex + 1] = src_uv2s[vertexIndex + 1];
dst_uv2s[vertexIndex + 2] = src_uv2s[vertexIndex + 2];
dst_uv2s[vertexIndex + 3] = src_uv2s[vertexIndex + 3];
// Restore last vertex attribute as we swapped it as well
int lastIndex = (src_vertices.Length / 4 - 1) * 4;
// Vertices
dst_vertices[lastIndex + 0] = src_vertices[lastIndex + 0];
dst_vertices[lastIndex + 1] = src_vertices[lastIndex + 1];
dst_vertices[lastIndex + 2] = src_vertices[lastIndex + 2];
dst_vertices[lastIndex + 3] = src_vertices[lastIndex + 3];
// Vertex Colors
src_colors = m_cachedMeshInfoVertexData[materialIndex].colors32;
dst_colors = m_TextMeshPro.textInfo.meshInfo[materialIndex].colors32;
dst_colors[lastIndex + 0] = src_colors[lastIndex + 0];
dst_colors[lastIndex + 1] = src_colors[lastIndex + 1];
dst_colors[lastIndex + 2] = src_colors[lastIndex + 2];
dst_colors[lastIndex + 3] = src_colors[lastIndex + 3];
// UVS0
src_uv0s = m_cachedMeshInfoVertexData[materialIndex].uvs0;
dst_uv0s = m_TextMeshPro.textInfo.meshInfo[materialIndex].uvs0;
dst_uv0s[lastIndex + 0] = src_uv0s[lastIndex + 0];
dst_uv0s[lastIndex + 1] = src_uv0s[lastIndex + 1];
dst_uv0s[lastIndex + 2] = src_uv0s[lastIndex + 2];
dst_uv0s[lastIndex + 3] = src_uv0s[lastIndex + 3];
// UVS2
src_uv2s = m_cachedMeshInfoVertexData[materialIndex].uvs2;
dst_uv2s = m_TextMeshPro.textInfo.meshInfo[materialIndex].uvs2;
dst_uv2s[lastIndex + 0] = src_uv2s[lastIndex + 0];
dst_uv2s[lastIndex + 1] = src_uv2s[lastIndex + 1];
dst_uv2s[lastIndex + 2] = src_uv2s[lastIndex + 2];
dst_uv2s[lastIndex + 3] = src_uv2s[lastIndex + 3];
// Need to update the appropriate
m_TextMeshPro.UpdateVertexData(TMP_VertexDataUpdateFlags.All);
}
}
}