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Initial checkin

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Brian Fiete 2019-08-23 11:56:54 -07:00
parent c74712dad9
commit 078564ac9e
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IDE/src/HistoryManager.bf Normal file
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using System;
using System.Collections.Generic;
using System.Text;
using System.Threading.Tasks;
using IDE.ui;
using Beefy;
using System.IO;
namespace IDE
{
public class HistoryEntry : TrackedTextElement
{
//public String mNotes ~ delete _;
public bool mNoMerge;
public this()
{
mSnapToLineStart = false;
}
public ~this()
{
}
}
public class HistoryManager
{
const int32 LINE_MERGE_MAX_DELTA = 8;
const int32 MAX_ENTRIES = 24;
public List<HistoryEntry> mHistoryList = new List<HistoryEntry>() ~
{
for (var entry in _)
entry.Deref();
delete _;
};
public int32 mHistoryIdx = -1;
public HistoryEntry CreateHistory(SourceViewPanel sourceViewPanel, String fileName, int wantLineNum, int wantColumn, bool ignoreIfClose)
{
// If we are backwards in history, try to update the current entry if we're close to it.
// Otherwise we truncate the history from the current location and append a new entry
HistoryEntry historyEntry;
if (mHistoryIdx >= 0)
{
historyEntry = mHistoryList[mHistoryIdx];
if ((!historyEntry.mNoMerge) && (historyEntry.mFileName == fileName) && (Math.Abs(historyEntry.mLineNum - wantLineNum) <= LINE_MERGE_MAX_DELTA))
{
if (ignoreIfClose)
return null;
historyEntry.mMoveIdx++;
historyEntry.mLineNum = (int32)wantLineNum;
historyEntry.mColumn = (int32)wantColumn;
bool foundExistingTrackedElement = false;
if ((sourceViewPanel != null) && (sourceViewPanel.mTrackedTextElementViewList != null))
{
for (var trackedElement in sourceViewPanel.mTrackedTextElementViewList)
{
if (trackedElement.mTrackedElement == historyEntry)
{
sourceViewPanel.UpdateTrackedElementView(trackedElement);
foundExistingTrackedElement = true;
break;
}
}
}
if (!foundExistingTrackedElement)
IDEApp.sApp.mDebugger.mBreakpointsChangedDelegate();
return historyEntry;
}
}
int32 removeIdx = mHistoryIdx + 1;
while (removeIdx < mHistoryList.Count)
DeleteHistory(mHistoryList[removeIdx]);
while (mHistoryList.Count > MAX_ENTRIES)
{
var entry = mHistoryList.PopFront();
entry.Kill();
}
mHistoryIdx = (int32)mHistoryList.Count;
historyEntry = new HistoryEntry();
historyEntry.mFileName = new String(fileName);
historyEntry.mLineNum = (int32)wantLineNum;
historyEntry.mColumn = (int32)wantColumn;
mHistoryList.Add(historyEntry);
IDEApp.sApp.mDebugger.mBreakpointsChangedDelegate();
return historyEntry;
}
public void DeleteHistory(HistoryEntry history)
{
mHistoryList.Remove(history);
if (mHistoryIdx >= mHistoryList.Count)
mHistoryIdx = (int32)mHistoryList.Count - 1;
IDEApp.sApp.mDebugger.mBreakpointsChangedDelegate();
history.Kill();
}
public bool IsAtCurrentHistory(SourceViewPanel sourceViewPanel, String fileName, int wantLineNum, int wantColumn, bool ignoreIfClose)
{
if (mHistoryIdx >= 0)
{
HistoryEntry historyEntry = mHistoryList[mHistoryIdx];
if ((Path.Equals(historyEntry.mFileName, fileName)) && (Math.Abs(historyEntry.mLineNum - wantLineNum) == 0))
{
return true;
}
}
return false;
}
public void GoToCurrentHistory()
{
if (mHistoryIdx == -1)
return;
var History = mHistoryList[mHistoryIdx];
IDEApp.sApp.ShowSourceFileLocation(History.mFileName, -1, -1, History.mLineNum, History.mColumn, LocatorType.Smart);
}
public void PrevHistory()
{
if (mHistoryList.Count == 0)
return;
mHistoryIdx--;
if (mHistoryIdx < 0)
mHistoryIdx = 0;
GoToCurrentHistory();
}
public void NextHistory()
{
if (mHistoryList.Count == 0)
return;
mHistoryIdx++;
if (mHistoryIdx >= mHistoryList.Count)
mHistoryIdx = (int32)mHistoryList.Count - 1;
GoToCurrentHistory();
}
}
}