字体预览工具 v1.0.0 初始版本
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using System;
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using System.Collections.Generic;
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using System.Drawing;
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using System.Windows.Forms;
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namespace FontPreview
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{
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/// <summary>
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/// 字体对比对话框。
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/// 模式一（showList=true）：把已加入对比列表的多个字体纵向滚动排列，同一文字/字号并排渲染。
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/// 模式二（showList=false）：从全部字体里选两个下拉框对比。
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/// </summary>
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public class CompareDialog : Form
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{
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private List<FontItem> items;
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private bool listMode;
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private ComboBox cboA;
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private ComboBox cboB;
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private TextBox txtText;
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private NumericUpDown numSize;
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private PictureBox picA;
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private PictureBox picB;
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private Label lblNameA;
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private Label lblNameB;
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private Panel scrollPanel;
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private List<PictureBox> listPics = new List<PictureBox>();
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private List<Label> listNames = new List<Label>();
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private List<RoundPanel> listCards = new List<RoundPanel>();
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private Action<string> installCallback;
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public CompareDialog(List<FontItem> items, bool showList, Action<string> installCallback = null)
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{
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this.installCallback = installCallback;
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this.items = items;
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this.listMode = showList;
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Text = listMode ? "字体多字体对比（已加入 " + items.Count + " 个）" : "字体并排对比";
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FormBorderStyle = FormBorderStyle.SizableToolWindow;
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StartPosition = FormStartPosition.CenterParent;
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ClientSize = new Size(820, 600);
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Font = new Font("Microsoft YaHei UI", 9f);
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MinimumSize = new Size(620, 460);
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// 顶部：文字 + 字号 + 渲染
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Label lt = new Label { Text = "文字：", Location = new Point(12, 15), Size = new Size(44, 20) };
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txtText = new TextBox { Location = new Point(62, 12), Size = new Size(560, 24), Text = "永字八法 横平竖直 你好世界 ABC 0123" };
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Label ls = new Label { Text = "字号：", Location = new Point(632, 15), Size = new Size(40, 20) };
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numSize = new NumericUpDown { Location = new Point(676, 12), Size = new Size(60, 24), Minimum = 12, Maximum = 120, Value = 36 };
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Button btnGo = new Button { Text = "渲染", Location = new Point(744, 11), Size = new Size(58, 26) };
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btnGo.Click += OnRender;
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numSize.ValueChanged += OnRender;
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txtText.Leave += delegate { OnRender(null, null); };
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txtText.KeyDown += delegate (object s, KeyEventArgs k) { if (k.KeyCode == Keys.Enter) { OnRender(null, null); k.SuppressKeyPress = true; } };
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Controls.Add(lt); Controls.Add(txtText); Controls.Add(ls); Controls.Add(numSize); Controls.Add(btnGo);
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if (listMode)
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{
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scrollPanel = new Panel { Location = new Point(12, 44), Size = new Size(790, 544), AutoScroll = true, BackColor = Color.White };
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Controls.Add(scrollPanel);
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RebuildList();
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}
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else
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{
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Label la = new Label { Text = "字体 A：", Location = new Point(12, 48), Size = new Size(50, 20) };
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cboA = new ComboBox { DropDownStyle = ComboBoxStyle.DropDownList, Location = new Point(62, 45), Size = new Size(360, 24) };
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Label lb = new Label { Text = "字体 B：", Location = new Point(430, 48), Size = new Size(50, 20) };
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cboB = new ComboBox { DropDownStyle = ComboBoxStyle.DropDownList, Location = new Point(480, 45), Size = new Size(268, 24) };
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foreach (FontItem it in items)
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{
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string s = it.DisplayName + " —— " + it.Name;
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cboA.Items.Add(s);
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cboB.Items.Add(s);
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}
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if (cboA.Items.Count > 0) cboA.SelectedIndex = 0;
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if (cboB.Items.Count > 1) cboB.SelectedIndex = 1; else if (cboB.Items.Count > 0) cboB.SelectedIndex = 0;
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lblNameA = new Label { Location = new Point(12, 82), Size = new Size(776, 18), ForeColor = Color.DimGray };
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lblNameB = new Label { Location = new Point(12, 282), Size = new Size(776, 18), ForeColor = Color.DimGray };
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picA = new PictureBox { Location = new Point(12, 102), Size = new Size(776, 176), BackColor = Color.FromArgb(242, 244, 247), SizeMode = PictureBoxSizeMode.Zoom, BorderStyle = BorderStyle.FixedSingle };
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picB = new PictureBox { Location = new Point(12, 302), Size = new Size(776, 176), BackColor = Color.FromArgb(242, 244, 247), SizeMode = PictureBoxSizeMode.Zoom, BorderStyle = BorderStyle.FixedSingle };
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Controls.Add(la); Controls.Add(cboA);
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Controls.Add(lb); Controls.Add(cboB);
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Controls.Add(lblNameA); Controls.Add(lblNameB);
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Controls.Add(picA); Controls.Add(picB);
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}
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Shown += delegate { OnRender(null, null); };
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}
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private void RebuildList()
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{
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scrollPanel.Controls.Clear();
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listPics.Clear();
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listNames.Clear();
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listCards.Clear();
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int w = scrollPanel.ClientSize.Width - 24;
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if (w < 400) w = 400;
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for (int i = 0; i < items.Count; i++)
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{
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FontItem it = items[i];
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RoundPanel card = UiTheme.CreateCard(w, 180);
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Panel accent = UiTheme.CreateAccentBar(14, 16);
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Label name = UiTheme.CreateCardTitle(it.DisplayName, 26, 12, w - 44);
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PictureBox pic = UiTheme.CreatePreviewBox(18, 46, w - 36, 120);
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// 右键：以快捷方式安装
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ContextMenuStrip cm = new ContextMenuStrip();
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ToolStripMenuItem miInstall = new ToolStripMenuItem("以快捷方式安装（复制到左侧目录）");
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miInstall.Click += delegate
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{
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if (installCallback != null) installCallback(it.Path);
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};
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cm.Items.Add(miInstall);
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card.ContextMenuStrip = cm;
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pic.ContextMenuStrip = cm;
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name.ContextMenuStrip = cm;
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// 左键复制字体名
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card.Cursor = Cursors.Hand;
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EventHandler copyClick = delegate { try { Clipboard.SetText(it.Name); } catch { } };
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card.MouseClick += (MouseEventHandler)delegate (object s, MouseEventArgs e) { if (e.Button == MouseButtons.Left) copyClick(s, e); };
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pic.MouseClick += (MouseEventHandler)delegate (object s, MouseEventArgs e) { if (e.Button == MouseButtons.Left) copyClick(s, e); };
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name.MouseClick += (MouseEventHandler)delegate (object s, MouseEventArgs e) { if (e.Button == MouseButtons.Left) copyClick(s, e); };
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card.Controls.Add(accent);
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card.Controls.Add(name);
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card.Controls.Add(pic);
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scrollPanel.Controls.Add(card);
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listCards.Add(card);
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listNames.Add(name);
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listPics.Add(pic);
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}
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}
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private void OnRender(object sender, EventArgs e)
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{
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if (listMode)
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{
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for (int i = 0; i < items.Count; i++)
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{
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RenderOne(i, listPics[i], listNames[i]);
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}
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LayoutList();
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}
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else
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{
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RenderOne(cboA.SelectedIndex, picA, lblNameA);
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RenderOne(cboB.SelectedIndex, picB, lblNameB);
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}
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}
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// 按每张图片实际高度重排卡片纵向位置
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private void LayoutList()
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{
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int y = 8;
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int w = scrollPanel.ClientSize.Width - 24;
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if (w < 400) w = 400;
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for (int i = 0; i < listCards.Count; i++)
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{
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int h = (listPics[i].Image != null) ? listPics[i].Image.Height : 120;
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if (h > 400) h = 400;
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if (h < 60) h = 60;
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listCards[i].Width = w;
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listCards[i].Height = 46 + h + 10;
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listCards[i].Top = y;
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listCards[i].Left = 8;
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listPics[i].Height = h;
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y += listCards[i].Height + 12;
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}
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}
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private void RenderOne(int idx, PictureBox pic, Label nameLbl)
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{
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if (idx < 0 || idx >= items.Count) return;
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FontItem it = items[idx];
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bool failed;
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Bitmap bmp = Worker.RenderFont(it.Path, it.Name, txtText.Text, (int)numSize.Value, Color.Black, Color.White, out failed);
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nameLbl.Text = it.DisplayName;
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if (bmp != null)
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{
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// 新图画好后再一次性替换旧图，避免中间空白闪烁
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Bitmap old = (Bitmap)pic.Image;
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pic.Image = bmp;
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if (old != null) old.Dispose();
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}
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else
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{
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nameLbl.Text = it.DisplayName + "（渲染失败）";
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}
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}
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}
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}
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