DrawTreeViewEmptyState.cs
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using UnityEngine;
namespace Unity.PlasticSCM.Editor.UI.Tree
{
internal static class DrawTreeViewEmptyState
{
internal static void For(
Rect rect,
string text)
{
GUIContent content = new GUIContent(text);
Vector2 contentSize = GetContentSize(content);
GUI.BeginGroup(rect);
DrawLabel(
content,
contentSize,
(rect.width - contentSize.x) / 2,
rect.height / 2);
GUI.EndGroup();
}
internal static void For(
Rect rect,
string text,
Images.Name iconName)
{
GUIContent content = new GUIContent(text);
Vector2 contentSize = GetContentSize(content);
GUI.BeginGroup(rect);
DrawLabelWithIcon(
content,
contentSize,
(rect.width - contentSize.x) / 2,
rect.height / 2,
iconName);
GUI.EndGroup();
}
static void DrawLabel(
GUIContent content,
Vector2 contentSize,
float offsetX,
float offsetY)
{
GUI.Label(
new Rect(offsetX, offsetY, contentSize.x, contentSize.y),
content,
UnityStyles.Tree.StatusLabel);
}
static void DrawLabelWithIcon(
GUIContent content,
Vector2 contentSize,
float offsetX,
float offsetY,
Images.Name iconName)
{
int iconSize = UnityConstants.TREEVIEW_STATUS_ICON_SIZE;
int padding = UnityConstants.TREEVIEW_STATUS_CONTENT_PADDING;
float iconOffsetX = offsetX - iconSize + padding;
float contentOffsetX = offsetX + iconSize - padding;
GUI.DrawTexture(
new Rect(iconOffsetX, offsetY + padding, iconSize, iconSize),
Images.GetImage(iconName),
ScaleMode.ScaleToFit);
DrawLabel(
content,
contentSize,
contentOffsetX,
offsetY);
}
static Vector2 GetContentSize(GUIContent content)
{
return ((GUIStyle)UnityStyles.Tree.StatusLabel).CalcSize(content);
}
}
}