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TextPic.cs Added Fix for href tag, which was not working. 

--HG--
branch : sushanta1991/textpiccs-was-not-working-for-href-unit-1474979920532
pull/413/head
sushanta chakraborty 2016-09-28 05:29:33 +00:00
parent 292fb39c93
commit b75a03963e
1 changed files with 371 additions and 377 deletions
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748
Scripts/Controls/TextPic.cs
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@ -10,334 +10,328 @@ using UnityEngine.EventSystems;
namespace UnityEngine.UI.Extensions namespace UnityEngine.UI.Extensions
{ {
// Image according to the label inside the name attribute to load, read from the Resources directory. The size of the image is controlled by the size property. // Image according to the label inside the name attribute to load, read from the Resources directory. The size of the image is controlled by the size property.
// Use: <quad name=NAME size=25 width=1 /> // Use: <quad name=NAME size=25 width=1 />
[AddComponentMenu("UI/Extensions/TextPic")] [AddComponentMenu("UI/Extensions/TextPic")]
[ExecuteInEditMode] // Needed for culling images that are not used //
public class TextPic : Text, IPointerClickHandler, IPointerExitHandler, IPointerEnterHandler, ISelectHandler
{
/// <summary>
/// Image Pool
/// </summary>
private readonly List<Image> m_ImagesPool = new List<Image>();
private readonly List<GameObject> culled_ImagesPool = new List<GameObject>();
private bool clearImages = false;
[ExecuteInEditMode] // Needed for culling images that are not used // /// <summary>
public class TextPic : Text, IPointerClickHandler, IPointerExitHandler, IPointerEnterHandler, ISelectHandler /// Vertex Index
{ /// </summary>
/// <summary> private readonly List<int> m_ImagesVertexIndex = new List<int>();
/// Image Pool
/// </summary>
private readonly List<Image> m_ImagesPool = new List<Image>();
private readonly List<GameObject> culled_ImagesPool = new List<GameObject>();
private bool clearImages = false;
/// <summary> /// <summary>
/// Vertex Index /// Regular expression to replace
/// </summary> /// </summary>
private readonly List<int> m_ImagesVertexIndex = new List<int>(); private static readonly Regex s_Regex =
new Regex(@"<quad name=(.+?) size=(\d*\.?\d+%?) width=(\d*\.?\d+%?) />", RegexOptions.Singleline);
/// <summary> private string fixedString;
/// Regular expression to replace
/// </summary>
private static readonly Regex s_Regex =
new Regex(@"<quad name=(.+?) size=(\d*\.?\d+%?) width=(\d*\.?\d+%?) />", RegexOptions.Singleline);
private string fixedString; public override void SetVerticesDirty()
{
base.SetVerticesDirty();
UpdateQuadImage();
}
public override void SetVerticesDirty() #if UNITY_EDITOR
{ protected override void OnValidate()
base.SetVerticesDirty(); {
UpdateQuadImage(); base.OnValidate();
} UpdateQuadImage();
}
#endif
#if UNITY_EDITOR /// <summary>
protected override void OnValidate() /// After parsing the final text
{ /// </summary>
base.OnValidate(); private string m_OutputText;
UpdateQuadImage();
}
#endif
/// <summary> [System.Serializable]
/// After parsing the final text public struct IconName
/// </summary> {
private string m_OutputText; public string name;
public Sprite sprite;
}
public IconName[] inspectorIconList;
[System.Serializable] private Dictionary<string, Sprite> iconList = new Dictionary<string, Sprite>();
public struct IconName
{
public string name;
public Sprite sprite;
}
public IconName[] inspectorIconList;
private Dictionary<string, Sprite> iconList = new Dictionary<string, Sprite>(); public float ImageScalingFactor = 1;
public float ImageScalingFactor = 1; // Write the name or hex value of the hyperlink color
public string hyperlinkColor = "blue";
// Write the name or hex value of the hyperlink color // Offset image by x, y
public string hyperlinkColor = "blue"; [SerializeField]
public Vector2 imageOffset = Vector2.zero;
// Offset image by x, y private Button button;
[SerializeField]
public Vector2 imageOffset = Vector2.zero;
private Button button; //Commented out as private and not used.. Yet?
//private bool selected = false;
//Commented out as private and not used.. Yet? private List<Vector2> positions = new List<Vector2>();
//private bool selected = false;
private List<Vector2> positions = new List<Vector2>(); /**
/**
* Unity Inspector cant display Dictionary vars, * Unity Inspector cant display Dictionary vars,
* so we use this little hack to setup the iconList * so we use this little hack to setup the iconList
*/ */
new void Start() new void Start()
{ {
button = GetComponent<Button>(); button = GetComponent<Button>();
if (inspectorIconList != null && inspectorIconList.Length > 0) if (inspectorIconList != null && inspectorIconList.Length > 0)
{ {
foreach (IconName icon in inspectorIconList) foreach (IconName icon in inspectorIconList)
{ {
// Debug.Log(icon.sprite.name); // Debug.Log(icon.sprite.name);
iconList.Add(icon.name, icon.sprite); iconList.Add(icon.name, icon.sprite);
} }
} }
} }
protected void UpdateQuadImage() protected void UpdateQuadImage()
{ {
#if UNITY_EDITOR #if UNITY_EDITOR
if (UnityEditor.PrefabUtility.GetPrefabType(this) == UnityEditor.PrefabType.Prefab) if (UnityEditor.PrefabUtility.GetPrefabType(this) == UnityEditor.PrefabType.Prefab)
{ {
return; return;
} }
#endif #endif
m_OutputText = GetOutputText(); m_OutputText = GetOutputText();
m_ImagesVertexIndex.Clear(); m_ImagesVertexIndex.Clear();
foreach (Match match in s_Regex.Matches(m_OutputText)) foreach (Match match in s_Regex.Matches(m_OutputText))
{ {
var picIndex = match.Index; var picIndex = match.Index;
var endIndex = picIndex * 4 + 3; var endIndex = picIndex * 4 + 3;
m_ImagesVertexIndex.Add(endIndex); m_ImagesVertexIndex.Add(endIndex);
m_ImagesPool.RemoveAll(image => image == null); m_ImagesPool.RemoveAll(image => image == null);
if (m_ImagesPool.Count == 0) if (m_ImagesPool.Count == 0)
{ {
GetComponentsInChildren<Image>(m_ImagesPool); GetComponentsInChildren<Image>(m_ImagesPool);
} }
if (m_ImagesVertexIndex.Count > m_ImagesPool.Count) if (m_ImagesVertexIndex.Count > m_ImagesPool.Count)
{ {
var resources = new DefaultControls.Resources(); var resources = new DefaultControls.Resources();
var go = DefaultControls.CreateImage(resources); var go = DefaultControls.CreateImage(resources);
go.layer = gameObject.layer; go.layer = gameObject.layer;
var rt = go.transform as RectTransform; var rt = go.transform as RectTransform;
if (rt) if (rt)
{ {
rt.SetParent(rectTransform); rt.SetParent(rectTransform);
rt.localPosition = Vector3.zero; rt.localPosition = Vector3.zero;
rt.localRotation = Quaternion.identity; rt.localRotation = Quaternion.identity;
rt.localScale = Vector3.one; rt.localScale = Vector3.one;
} }
m_ImagesPool.Add(go.GetComponent<Image>()); m_ImagesPool.Add(go.GetComponent<Image>());
} }
var spriteName = match.Groups[1].Value; var spriteName = match.Groups[1].Value;
//var size = float.Parse(match.Groups[2].Value); //var size = float.Parse(match.Groups[2].Value);
var img = m_ImagesPool[m_ImagesVertexIndex.Count - 1]; var img = m_ImagesPool[m_ImagesVertexIndex.Count - 1];
if (img.sprite == null || img.sprite.name != spriteName) if (img.sprite == null || img.sprite.name != spriteName)
{ {
// img.sprite = Resources.Load<Sprite>(spriteName); // img.sprite = Resources.Load<Sprite>(spriteName);
if (inspectorIconList != null && inspectorIconList.Length > 0) if (inspectorIconList != null && inspectorIconList.Length > 0)
{ {
foreach (IconName icon in inspectorIconList) foreach (IconName icon in inspectorIconList)
{ {
if (icon.name == spriteName) if (icon.name == spriteName)
{ {
img.sprite = icon.sprite; img.sprite = icon.sprite;
break; break;
} }
} }
} }
} }
img.rectTransform.sizeDelta = new Vector2(fontSize * ImageScalingFactor, fontSize * ImageScalingFactor); img.rectTransform.sizeDelta = new Vector2(fontSize * ImageScalingFactor, fontSize * ImageScalingFactor);
img.enabled = true; img.enabled = true;
if (positions.Count == m_ImagesPool.Count) if (positions.Count == m_ImagesPool.Count)
{ {
img.rectTransform.anchoredPosition = positions[m_ImagesVertexIndex.Count - 1]; img.rectTransform.anchoredPosition = positions[m_ImagesVertexIndex.Count - 1];
} }
} }
for (var i = m_ImagesVertexIndex.Count; i < m_ImagesPool.Count; i++) for (var i = m_ImagesVertexIndex.Count; i < m_ImagesPool.Count; i++)
{ {
if (m_ImagesPool[i]) if (m_ImagesPool[i])
{ {
/* TEMPORARY FIX REMOVE IMAGES FROM POOL DELETE LATER SINCE CANNOT DESTROY */ /* TEMPORARY FIX REMOVE IMAGES FROM POOL DELETE LATER SINCE CANNOT DESTROY */
// m_ImagesPool[i].enabled = false; // m_ImagesPool[i].enabled = false;
m_ImagesPool[i].gameObject.SetActive(false); m_ImagesPool[i].gameObject.SetActive(false);
m_ImagesPool[i].gameObject.hideFlags = HideFlags.HideAndDontSave; m_ImagesPool[i].gameObject.hideFlags = HideFlags.HideAndDontSave;
culled_ImagesPool.Add(m_ImagesPool[i].gameObject); culled_ImagesPool.Add(m_ImagesPool[i].gameObject);
m_ImagesPool.Remove(m_ImagesPool[i]); m_ImagesPool.Remove(m_ImagesPool[i]);
} }
} }
if (culled_ImagesPool.Count > 1) { if (culled_ImagesPool.Count > 1) {
clearImages = true; clearImages = true;
} }
} }
protected override void OnPopulateMesh(VertexHelper toFill) protected override void OnPopulateMesh(VertexHelper toFill)
{ {
var orignText = m_Text; var orignText = m_Text;
m_Text = m_OutputText; m_Text = m_OutputText;
base.OnPopulateMesh(toFill); base.OnPopulateMesh(toFill);
m_Text = orignText; m_Text = orignText;
positions.Clear(); positions.Clear();
UIVertex vert = new UIVertex(); UIVertex vert = new UIVertex();
for (var i = 0; i < m_ImagesVertexIndex.Count; i++) for (var i = 0; i < m_ImagesVertexIndex.Count; i++)
{ {
var endIndex = m_ImagesVertexIndex[i]; var endIndex = m_ImagesVertexIndex[i];
var rt = m_ImagesPool[i].rectTransform; var rt = m_ImagesPool[i].rectTransform;
var size = rt.sizeDelta; var size = rt.sizeDelta;
if (endIndex < toFill.currentVertCount) if (endIndex < toFill.currentVertCount)
{ {
toFill.PopulateUIVertex(ref vert, endIndex); toFill.PopulateUIVertex(ref vert, endIndex);
positions.Add(new Vector2((vert.position.x + size.x / 2), (vert.position.y + size.y / 2)) + imageOffset); positions.Add(new Vector2((vert.position.x + size.x / 2), (vert.position.y + size.y / 2)) + imageOffset);
// Erase the lower left corner of the black specks // Erase the lower left corner of the black specks
toFill.PopulateUIVertex(ref vert, endIndex - 3); toFill.PopulateUIVertex(ref vert, endIndex - 3);
var pos = vert.position; var pos = vert.position;
for (int j = endIndex, m = endIndex - 3; j > m; j--) for (int j = endIndex, m = endIndex - 3; j > m; j--)
{ {
toFill.PopulateUIVertex(ref vert, endIndex); toFill.PopulateUIVertex(ref vert, endIndex);
vert.position = pos; vert.position = pos;
toFill.SetUIVertex(vert, j); toFill.SetUIVertex(vert, j);
} }
} }
} }
if (m_ImagesVertexIndex.Count != 0) if (m_ImagesVertexIndex.Count != 0)
{ {
m_ImagesVertexIndex.Clear(); m_ImagesVertexIndex.Clear();
} }
// Hyperlinks surround processing box // Hyperlinks surround processing box
foreach (var hrefInfo in m_HrefInfos) foreach (var hrefInfo in m_HrefInfos)
{ {
hrefInfo.boxes.Clear(); hrefInfo.boxes.Clear();
if (hrefInfo.startIndex >= toFill.currentVertCount) if (hrefInfo.startIndex >= toFill.currentVertCount)
{ {
continue; continue;
} }
// Hyperlink inside the text is added to surround the vertex index coordinate frame // Hyperlink inside the text is added to surround the vertex index coordinate frame
toFill.PopulateUIVertex(ref vert, hrefInfo.startIndex); toFill.PopulateUIVertex(ref vert, hrefInfo.startIndex);
var pos = vert.position; var pos = vert.position;
var bounds = new Bounds(pos, Vector3.zero); var bounds = new Bounds(pos, Vector3.zero);
for (int i = hrefInfo.startIndex, m = hrefInfo.endIndex; i < m; i++) for (int i = hrefInfo.startIndex, m = hrefInfo.endIndex; i < m; i++)
{ {
if (i >= toFill.currentVertCount) if (i >= toFill.currentVertCount)
{ {
break; break;
} }
toFill.PopulateUIVertex(ref vert, i); toFill.PopulateUIVertex(ref vert, i);
pos = vert.position; pos = vert.position;
if (pos.x < bounds.min.x) // Wrap re-add surround frame if (pos.x < bounds.min.x) // Wrap re-add surround frame
{ {
hrefInfo.boxes.Add(new Rect(bounds.min, bounds.size)); hrefInfo.boxes.Add(new Rect(bounds.min, bounds.size));
bounds = new Bounds(pos, Vector3.zero); bounds = new Bounds(pos, Vector3.zero);
} }
else else
{ {
bounds.Encapsulate(pos); // Extended enclosed box bounds.Encapsulate(pos); // Extended enclosed box
} }
} }
hrefInfo.boxes.Add(new Rect(bounds.min, bounds.size)); hrefInfo.boxes.Add(new Rect(bounds.min, bounds.size));
}
UpdateQuadImage();
}
} /// <summary>
/// Hyperlink List
/// </summary>
private readonly List<HrefInfo> m_HrefInfos = new List<HrefInfo>();
/// <summary>
/// Text Builder
/// </summary>
private static readonly StringBuilder s_TextBuilder = new StringBuilder();
UpdateQuadImage(); /// <summary>
/// Hyperlink Regular Expression
/// </summary>
private static readonly Regex s_HrefRegex =
new Regex(@"<a href=([^>\n\s]+)>(.*?)(</a>)", RegexOptions.Singleline);
} [Serializable]
public class HrefClickEvent : UnityEvent<string> { }
/// <summary> [SerializeField]
/// Hyperlink List private HrefClickEvent m_OnHrefClick = new HrefClickEvent();
/// </summary>
private readonly List<HrefInfo> m_HrefInfos = new List<HrefInfo>();
/// <summary> /// <summary>
/// Text Builder /// Hyperlink Click Event
/// </summary> /// </summary>
private static readonly StringBuilder s_TextBuilder = new StringBuilder(); public HrefClickEvent onHrefClick
{
get { return m_OnHrefClick; }
set { m_OnHrefClick = value; }
}
/// <summary> /// <summary>
/// Hyperlink Regular Expression /// Finally, the output text hyperlinks get parsed
/// </summary> /// </summary>
private static readonly Regex s_HrefRegex = /// <returns></returns>
new Regex(@"<a href=([^>\n\s]+)>(.*?)(</a>)", RegexOptions.Singleline); protected string GetOutputText()
{
s_TextBuilder.Length = 0;
//m_HrefInfos.Clear();
var indexText = 0;
fixedString = this.text;
if (inspectorIconList != null && inspectorIconList.Length > 0)
{
foreach (IconName icon in inspectorIconList)
{
if (icon.name != null && icon.name != "")
{
fixedString = fixedString.Replace(icon.name, "<quad name=" + icon.name + " size=" + fontSize + " width=1 />");
}
}
}
foreach (Match match in s_HrefRegex.Matches(fixedString))
{
s_TextBuilder.Append(fixedString.Substring(indexText, match.Index - indexText));
s_TextBuilder.Append("<color=" + hyperlinkColor + ">"); // Hyperlink color
[Serializable] var group = match.Groups[1];
public class HrefClickEvent : UnityEvent<string> { }
[SerializeField]
private HrefClickEvent m_OnHrefClick = new HrefClickEvent();
/// <summary>
/// Hyperlink Click Event
/// </summary>
public HrefClickEvent onHrefClick
{
get { return m_OnHrefClick; }
set { m_OnHrefClick = value; }
}
/// <summary>
/// Finally, the output text hyperlinks get parsed
/// </summary>
/// <returns></returns>
protected string GetOutputText()
{
s_TextBuilder.Length = 0;
// This also clears the list of boxes in m_HrefInfos created by OnPopulateMesh function, without boxes href wont work, so i commented this
//m_HrefInfos.Clear();
var indexText = 0;
fixedString = this.text;
if (inspectorIconList != null && inspectorIconList.Length > 0)
{
foreach (IconName icon in inspectorIconList)
{
if (icon.name != null && icon.name != "")
{
fixedString = fixedString.Replace(icon.name, "<quad name=" + icon.name + " size=" + fontSize + " width=1 />");
}
}
}
foreach (Match match in s_HrefRegex.Matches(fixedString))
{
s_TextBuilder.Append(fixedString.Substring(indexText, match.Index - indexText));
s_TextBuilder.Append("<color=" + hyperlinkColor + ">"); // Hyperlink color
var group = match.Groups[1];
int foundAtIndex = -1; int foundAtIndex = -1;
// checking if m_HrefInfos element with same name already exists than just updating it with new values, instead of recreating it without bound data (which is important for href tag)
if(HrefInfosDoesExists(group.Value,out foundAtIndex)) { if(HrefInfosDoesExists(group.Value,out foundAtIndex)) {
m_HrefInfos[foundAtIndex].startIndex = s_TextBuilder.Length * 4; // Hyperlinks in text starting vertex indices; m_HrefInfos[foundAtIndex].startIndex = s_TextBuilder.Length * 4; // Hyperlinks in text starting vertex indices;
m_HrefInfos[foundAtIndex].endIndex = (s_TextBuilder.Length + match.Groups[2].Length - 1) * 4 + 3; m_HrefInfos[foundAtIndex].endIndex = (s_TextBuilder.Length + match.Groups[2].Length - 1) * 4 + 3;
} else { } else {
var hrefInfo = new HrefInfo var hrefInfo = new HrefInfo
{ {
startIndex = s_TextBuilder.Length * 4, // Hyperlinks in text starting vertex indices startIndex = s_TextBuilder.Length * 4, // Hyperlinks in text starting vertex indices
endIndex = (s_TextBuilder.Length + match.Groups[2].Length - 1) * 4 + 3, endIndex = (s_TextBuilder.Length + match.Groups[2].Length - 1) * 4 + 3,
name = group.Value name = group.Value
}; };
m_HrefInfos.Add(hrefInfo); m_HrefInfos.Add(hrefInfo);
} }
s_TextBuilder.Append(match.Groups[2].Value); s_TextBuilder.Append(match.Groups[2].Value);
s_TextBuilder.Append("</color>"); s_TextBuilder.Append("</color>");
indexText = match.Index + match.Length; indexText = match.Index + match.Length;
} }
s_TextBuilder.Append(fixedString.Substring(indexText, fixedString.Length - indexText)); s_TextBuilder.Append(fixedString.Substring(indexText, fixedString.Length - indexText));
return s_TextBuilder.ToString(); return s_TextBuilder.ToString();
} }
/// <summary> /// <summary>
/// If Href exists than just modify its startIndex and endIndex, dont clear the whole array of m_HrefInfos which also clears the previously created boxes for href. /// If Href exists than just modify its startIndex and endIndex, dont clear the whole array of m_HrefInfos which also clears the previously created boxes for href.
@ -361,105 +355,105 @@ namespace UnityEngine.UI.Extensions
return flag; return flag;
} }
/// <summary> /// <summary>
/// Click event is detected whether to click a hyperlink text /// Click event is detected whether to click a hyperlink text
/// </summary> /// </summary>
/// <param name="eventData"></param> /// <param name="eventData"></param>
public void OnPointerClick(PointerEventData eventData) public void OnPointerClick(PointerEventData eventData)
{ {
Vector2 lp; Vector2 lp;
RectTransformUtility.ScreenPointToLocalPointInRectangle( RectTransformUtility.ScreenPointToLocalPointInRectangle(
rectTransform, eventData.position, eventData.pressEventCamera, out lp); rectTransform, eventData.position, eventData.pressEventCamera, out lp);
foreach (var hrefInfo in m_HrefInfos) foreach (var hrefInfo in m_HrefInfos)
{ {
var boxes = hrefInfo.boxes; var boxes = hrefInfo.boxes;
for (var i = 0; i < boxes.Count; ++i) for (var i = 0; i < boxes.Count; ++i)
{ {
if (boxes[i].Contains(lp)) if (boxes[i].Contains(lp))
{ {
m_OnHrefClick.Invoke(hrefInfo.name); m_OnHrefClick.Invoke(hrefInfo.name);
return; return;
} }
} }
} }
} }
public void OnPointerEnter(PointerEventData eventData) public void OnPointerEnter(PointerEventData eventData)
{ {
//do your stuff when highlighted //do your stuff when highlighted
//selected = true; //selected = true;
if (m_ImagesPool.Count >= 1) if (m_ImagesPool.Count >= 1)
{ {
foreach (Image img in m_ImagesPool) foreach (Image img in m_ImagesPool)
{ {
if (button != null && button.isActiveAndEnabled) if (button != null && button.isActiveAndEnabled)
{ {
img.color = button.colors.highlightedColor; img.color = button.colors.highlightedColor;
} }
} }
} }
} }
public void OnPointerExit(PointerEventData eventData) public void OnPointerExit(PointerEventData eventData)
{ {
//do your stuff when highlighted //do your stuff when highlighted
//selected = false; //selected = false;
if (m_ImagesPool.Count >= 1) if (m_ImagesPool.Count >= 1)
{ {
foreach (Image img in m_ImagesPool) foreach (Image img in m_ImagesPool)
{ {
if (button != null && button.isActiveAndEnabled) if (button != null && button.isActiveAndEnabled)
{ {
img.color = button.colors.normalColor; img.color = button.colors.normalColor;
} }
else else
{ {
img.color = color; img.color = color;
} }
} }
} }
} }
public void OnSelect(BaseEventData eventData) public void OnSelect(BaseEventData eventData)
{ {
//do your stuff when selected //do your stuff when selected
//selected = true; //selected = true;
if (m_ImagesPool.Count >= 1) if (m_ImagesPool.Count >= 1)
{ {
foreach (Image img in m_ImagesPool) foreach (Image img in m_ImagesPool)
{ {
if (button != null && button.isActiveAndEnabled) if (button != null && button.isActiveAndEnabled)
{ {
img.color = button.colors.highlightedColor; img.color = button.colors.highlightedColor;
} }
} }
} }
} }
/// <summary> /// <summary>
/// Hyperlinks Info /// Hyperlinks Info
/// </summary> /// </summary>
private class HrefInfo private class HrefInfo
{ {
public int startIndex; public int startIndex;
public int endIndex; public int endIndex;
public string name; public string name;
public readonly List<Rect> boxes = new List<Rect>(); public readonly List<Rect> boxes = new List<Rect>();
} }
/* TEMPORARY FIX REMOVE IMAGES FROM POOL DELETE LATER SINCE CANNOT DESTROY */ /* TEMPORARY FIX REMOVE IMAGES FROM POOL DELETE LATER SINCE CANNOT DESTROY */
void Update() { void Update() {
if (clearImages) { if (clearImages) {
for (int i = 0; i < culled_ImagesPool.Count; i++){ for (int i = 0; i < culled_ImagesPool.Count; i++){
DestroyImmediate(culled_ImagesPool[i]); DestroyImmediate(culled_ImagesPool[i]);
} }
culled_ImagesPool.Clear(); culled_ImagesPool.Clear();
clearImages = false; clearImages = false;
} }
} }
} }
} }