public void SetText(string text)
{
var ptr = UnsafeHelpers.StringToHGlobalUTF8(text);
igExtTextEditorSetText(textedit, ptr);
Marshal.FreeHGlobal(ptr);
}
public void AddTtfFile(string file)
{
var str = UnsafeHelpers.StringToHGlobalUTF8(file);
pg_addttfglobal(str);
Marshal.FreeHGlobal(str);
}
public void InputTextMultiline(string id, Vector2 size, ImGuiInputTextFlags flags, int sz = -1)
{
var idBytes = UnsafeHelpers.StringToHGlobalUTF8(id);
ImGuiNative.igInputTextMultiline((byte *)idBytes, (byte *)Pointer, (uint)(sz > 0 ? sz : Size), size, flags, Callback, (void *)0);
Marshal.FreeHGlobal(idBytes);
}
public override float LineHeight(string fontName, float size)
{
var fontPtr = UnsafeHelpers.StringToHGlobalUTF8(fontName);
var retval = pg_lineheight(ctx, fontPtr, size * (96.0f / 72.0f));
Marshal.FreeHGlobal(fontPtr);
return(retval);
}
public void Render(string id)
{
ImGui.PushFont(ImGuiHelper.SystemMonospace);
var ptr = UnsafeHelpers.StringToHGlobalUTF8(id);
igExtTextEditorRender(textedit, ptr);
Marshal.FreeHGlobal(ptr);
ImGui.PopFont();
}
public override Point MeasureString(string fontName, float size, string text)
{
var textPtr = UnsafeHelpers.StringToHGlobalUTF8(text);
var fontPtr = UnsafeHelpers.StringToHGlobalUTF8(fontName);
pg_measurestring(ctx, textPtr, fontPtr, size * (96.0f / 72.0f), out var width, out var height);
Marshal.FreeHGlobal(textPtr);
Marshal.FreeHGlobal(fontPtr);
return(new Point((int)width, (int)height));
}
public void AddTtfFile(string file)
{
if (string.IsNullOrEmpty(file))
{
throw new InvalidOperationException();
}
var str = UnsafeHelpers.StringToHGlobalUTF8(file);
pg_addttfglobal(str);
Marshal.FreeHGlobal(str);
}
public override float LineHeight(string fontName, float size)
{
if (string.IsNullOrEmpty(fontName))
{
throw new InvalidOperationException("LineHeight fontName cannot be null");
}
var fontPtr = UnsafeHelpers.StringToHGlobalUTF8(fontName);
var retval = pg_lineheight(ctx, fontPtr, size * (96.0f / 72.0f));
Marshal.FreeHGlobal(fontPtr);
return(retval);
}
public override void DrawStringBaseline(string fontName, float size, string text, float x, float y, float start_x, Color4 color, bool underline = false, TextShadow shadow = default)
{
var pixels = size * (96.0f / 72.0f);
drawX = (int)(start_x);
drawY = (int)y;
int indent = (int)(x - start_x);
var textPtr = UnsafeHelpers.StringToHGlobalUTF8(text);
var fontPtr = UnsafeHelpers.StringToHGlobalUTF8(fontName);
pg_drawstring(ctx, textPtr, fontPtr, pixels, indent, underline ? 1 : 0, color.R, color.G, color.B, color.A, shadow.Enabled ? &shadow.Color : (Color4 *)0);
Marshal.FreeHGlobal(textPtr);
Marshal.FreeHGlobal(fontPtr);
}
public override Point MeasureString(string fontName, float size, string text)
{
if (string.IsNullOrEmpty(fontName))
{
throw new InvalidOperationException("fontName null");
}
var textPtr = UnsafeHelpers.StringToHGlobalUTF8(text);
var fontPtr = UnsafeHelpers.StringToHGlobalUTF8(fontName);
pg_measurestring(ctx, textPtr, fontPtr, size * (96.0f / 72.0f), out var width, out var height);
Marshal.FreeHGlobal(textPtr);
Marshal.FreeHGlobal(fontPtr);
return(new Point((int)width, (int)height));
}
public override unsafe BuiltRichText BuildText(IList <RichTextNode> nodes, int width, float sizeMultiplier = 1f)
{
//Sort into paragraphs
var paragraphs = new List <List <RichTextNode> >();
paragraphs.Add(new List <RichTextNode>());
int first = 0;
while (nodes[first] is RichTextParagraphNode && first < nodes.Count)
{
first++;
}
var ta = (nodes[first] as RichTextTextNode).Alignment;
paragraphs[paragraphs.Count - 1].Add(nodes[first]);
foreach (var node in nodes.Skip(first + 1))
{
if (node is RichTextParagraphNode)
{
paragraphs.Add(new List <RichTextNode>());
}
else
{
var n = (RichTextTextNode)node;
var align = n.Alignment;
if (align != ta && paragraphs[paragraphs.Count - 1].Count > 0)
{
paragraphs.Add(new List <RichTextNode>());
}
paragraphs[paragraphs.Count - 1].Add(node);
ta = align;
}
}
//Build markup
var markups = new List <string>();
var alignments = new List <TextAlignment>();
for (int i = 0; i < paragraphs.Count; i++)
{
//make span
var builder = new StringBuilder();
TextAlignment a = TextAlignment.Left;
foreach (var tn in paragraphs[i])
{
var text = (RichTextTextNode)tn;
a = text.Alignment;
builder.Append("<span ");
if (text.Italic)
{
builder.Append("font_style=\"italic\" ");
}
else
{
builder.Append("font_style=\"normal\" ");
}
if (text.Bold)
{
builder.Append("font_weight=\"bold\" ");
}
else
{
builder.Append("font_weight=\"normal\" ");
}
builder.Append("fgcolor=\"#");
builder.Append(((int)(text.Color.R * 255f)).ToString("X2"));
builder.Append(((int)(text.Color.G * 255f)).ToString("X2"));
builder.Append(((int)(text.Color.B * 255f)).ToString("X2"));
builder.Append("\" underline=\"");
if (text.Underline)
{
builder.Append("single\" ");
}
else
{
builder.Append("none\" ");
}
builder.Append("size=\"");
builder.Append((int)(text.FontSize * 1024));
builder.Append("\" font_family=\"");
builder.Append(text.FontName);
builder.Append("\">");
builder.Append(System.Net.WebUtility.HtmlEncode(text.Contents));
builder.Append("</span>");
}
markups.Add(builder.ToString());
alignments.Add(a);
}
//Pass
IntPtr[] stringPointers = new IntPtr[markups.Count];
for (int i = 0; i < markups.Count; i++)
{
stringPointers[i] = UnsafeHelpers.StringToHGlobalUTF8(markups[i]);
}
var aligns = alignments.ToArray();
PangoBuiltText txt;
fixed(IntPtr *stringPtr = stringPointers)
{
fixed(TextAlignment *alignPtr = aligns)
{
txt = new PangoBuiltText(ctx, pg_buildtext(ctx, (IntPtr)stringPtr, (IntPtr)alignPtr, markups.Count, width));
}
}
for (int i = 0; i < markups.Count; i++)
{
Marshal.FreeHGlobal(stringPointers[i]);
}
return(txt);
}