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Refactor/rewrite form translation

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1. faster control retrieval (fetch all once rather than search for each)
1. smaller methods & added comments (ez understanding)
3. easier to dump control list (ez translation file updates, future)
This commit is contained in:
Kurt 2017-10-01 10:50:00 -07:00
parent 44c0b53852
commit c28575aad7
1 changed files with 128 additions and 73 deletions
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201
PKHeX.WinForms/Util/WinFormsUtil.cs
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@ -11,106 +11,161 @@ namespace PKHeX.WinForms
public static class WinFormsUtil
{
#region Form Translation
private static readonly string[] Splitter = {" = "};
private const char Comment = '-';
private const char FormStart = '!';
internal static void TranslateInterface(Control form, string lang)
{
// Check to see if a the translation file exists in the same folder as the executable
string externalLangPath = $"lang_{lang}.txt";
string[] rawlist;
if (File.Exists(externalLangPath))
rawlist = File.ReadAllLines(externalLangPath);
else
{
var file = $"lang_{lang}";
rawlist = Util.GetStringList(file);
if (rawlist.Length == 0)
{
// Translation file does not exist as a resource; abort this function and don't translate UI.
return;
}
}
if (!TryGetTranslationFile(lang, out string[] rawlist))
return; // no translation data retrieved
List<string> stringdata = new List<string>();
int start = -1;
for (int i = 0; i < rawlist.Length; i++)
{
// Find our starting point
if (!rawlist[i].Contains($"! {form.Name}")) continue;
start = i;
break;
}
if (start < 0)
// Find Starting Point
int start = GetTranslationStart(rawlist, form.Name);
if (start < 0) // no form info found
return;
// Rename Window Title
string[] WindowName = rawlist[start].Split(new[] { " = " }, StringSplitOptions.None);
if (WindowName.Length > 1) form.Text = WindowName[1];
string[] WindowName = rawlist[start].Split(Splitter, StringSplitOptions.None);
if (WindowName.Length > 1) // window title is specified
form.Text = WindowName[1];
// Fetch controls to rename
for (int i = start + 1; i < rawlist.Length; i++)
var stringdata = GetTranslationList(rawlist, start);
if (stringdata.Count == 0) // no translation data available
return;
// Execute Translation
form.SuspendLayout();
TranslateForm(form, stringdata);
form.ResumeLayout();
}
private static bool TryGetTranslationFile(string lang, out string[] rawlist)
{
var file = $"lang_{lang}";
// Check to see if a the translation file exists in the same folder as the executable
string externalLangPath = $"{file}.txt";
if (File.Exists(externalLangPath))
{
if (rawlist[i].Length == 0) continue; // Skip Over Empty Lines, errhandled
if (rawlist[i][0] == '-') continue; // Keep translating if line is a comment line
if (rawlist[i][0] == '!') // Stop if we have reached the end of translation
try
{
rawlist = File.ReadAllLines(externalLangPath);
return true;
}
catch { /* In use? Just return the internal resource. */ }
}
rawlist = Util.GetStringList(file);
// If there's no strings (or null), the translation file does not exist.
// No file => abort this function and don't translate UI.
return rawlist?.Length > 0;
}
private static int GetTranslationStart(IReadOnlyList<string> rawlist, string name)
{
for (int i = 0; i < rawlist.Count; i++)
if (rawlist[i].StartsWith($"{FormStart} {name}"))
return i;
return -1;
}
private static List<string> GetTranslationList(IReadOnlyList<string> rawlist, int start)
{
List<string> stringdata = new List<string>();
for (int i = start + 1; i < rawlist.Count; i++)
{
var line = rawlist[i];
if (line.Length == 0) continue; // Skip Over Empty Lines
if (line[0] == Comment) continue; // Keep translating if line is a comment line
if (line[0] == FormStart) // Stop if we have reached the end of translation
break;
stringdata.Add(rawlist[i]); // Add the entry to process later.
}
return stringdata;
}
if (stringdata.Count == 0)
return;
// Find control then change display Text.
form.SuspendLayout();
private static void TranslateForm(Control form, IEnumerable<string> stringdata)
{
// Only fetch the list of controls once; store in dictionary for faster translation
var controls = GetControlDictionary(form);
foreach (string str in stringdata)
{
string[] SplitString = str.Split(new[] { " = " }, StringSplitOptions.None);
if (SplitString.Length < 2)
string[] SplitString = str.Split(Splitter, StringSplitOptions.None);
if (SplitString.Length != 2)
continue;
object c = FindControl(SplitString[0], form.Controls); // Find control within Form's controls
if (c == null) // Not found
continue;
var controlName = SplitString[0];
if (!controls.TryGetValue(controlName, out object c))
continue; // control not found
string text = SplitString[1]; // Text to set Control.Text to...
if (c is Control)
(c as Control).Text = text;
else if (c is ToolStripItem)
(c as ToolStripItem).Text = text;
string text = SplitString[1];
if (c is Control r)
r.Text = text;
else if (c is ToolStripItem t)
t.Text = text;
}
form.ResumeLayout();
}
private static object FindControl(string name, Control.ControlCollection c)
private static Dictionary<string, object> GetControlDictionary(Control form)
{
Control control = c.Find(name, true).FirstOrDefault();
if (control != null)
return control;
foreach (MenuStrip menu in c.OfType<MenuStrip>())
{
var item = menu.Items.Find(name, true).FirstOrDefault();
if (item != null)
return item;
}
foreach (ContextMenuStrip strip in FindContextMenuStrips(c.OfType<Control>()))
{
var item = strip.Items.Find(name, true).FirstOrDefault();
if (item != null)
return item;
}
return null;
return GetTranslatableControls(form)
.GroupBy(p => p.Key, StringComparer.OrdinalIgnoreCase)
.ToDictionary(g => g.Key, g => g.First().Value, StringComparer.OrdinalIgnoreCase);
}
private static List<ContextMenuStrip> FindContextMenuStrips(IEnumerable<Control> c)
private static IEnumerable<KeyValuePair<string, object>> GetTranslatableControls(Control f)
{
List<ContextMenuStrip> cs = new List<ContextMenuStrip>();
foreach (Control control in c)
foreach (var z in f.GetChildrenOfType<Control>())
{
if (control.ContextMenuStrip != null)
cs.Add(control.ContextMenuStrip);
switch (z)
{
case ToolStrip menu:
foreach (var pair in GetToolStripMenuItems(menu))
yield return pair;
else if (control.Controls.Count > 0)
cs.AddRange(FindContextMenuStrips(control.Controls.OfType<Control>()));
break;
default:
if (string.IsNullOrWhiteSpace(z.Name))
break;
yield return new KeyValuePair<string, object>(z.Name, z);
if (z.ContextMenuStrip != null) // control has attached menustrip
foreach (var pair in GetToolStripMenuItems(z.ContextMenuStrip))
yield return pair;
break;
}
}
return cs;
}
private static IEnumerable<T> GetChildrenOfType<T>(this Control control) where T : class
{
foreach (Control child in control.Controls)
{
T childOfT = child as T;
if (childOfT != null)
yield return childOfT;
if (!child.HasChildren) continue;
foreach (T descendant in GetChildrenOfType<T>(child))
yield return descendant;
}
}
private static IEnumerable<KeyValuePair<string, object>> GetToolStripMenuItems(ToolStrip menu)
{
foreach (var i in menu.Items.OfType<ToolStripMenuItem>())
{
yield return new KeyValuePair<string, object>(i.Name, i);
foreach (var sub in GetToolsStripDropDownItems(i))
yield return new KeyValuePair<string, object>(sub.Name, sub);
}
}
private static IEnumerable<ToolStripMenuItem> GetToolsStripDropDownItems(ToolStripDropDownItem item)
{
foreach (var dropDownItem in item.DropDownItems.OfType<ToolStripMenuItem>())
{
if (dropDownItem.HasDropDownItems)
foreach (ToolStripMenuItem subItem in GetToolsStripDropDownItems(dropDownItem))
yield return subItem;
yield return dropDownItem;
}
}
internal static void CenterToForm(this Control child, Control parent)
{
int x = parent.Location.X + (parent.Width - child.Width) / 2;