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Add TextEditor::IsSaved(...) #153

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9ac7396
Added GetUndoIndex()
NothingSpecific Jan 30, 2024
682e768
Added `IsSaved()`
NothingSpecific Jan 30, 2024
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58 changes: 58 additions & 0 deletions TextEditor.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -52,6 +52,8 @@ TextEditor::TextEditor()
SetPalette(GetDarkPalette());
SetLanguageDefinition(LanguageDefinition::HLSL());
mLines.push_back(Line());

MarkSaved();
}

TextEditor::~TextEditor()
Expand Down Expand Up @@ -318,7 +320,13 @@ void TextEditor::AddUndo(UndoRecord& aValue)

mUndoBuffer.resize((size_t)(mUndoIndex + 1));
mUndoBuffer.back() = aValue;

if(mUndoIndex < mUndoIndexFirstEdit)
mUndoIndexFirstEdit = mUndoIndex;

++mUndoIndex;

mSaveState = false;
}

TextEditor::Coordinates TextEditor::ScreenPosToCoordinates(const ImVec2& aPosition) const
Expand Down Expand Up @@ -1172,6 +1180,7 @@ void TextEditor::SetText(const std::string & aText)
}

mTextChanged = true;
MarkSaved();
mScrollToTop = true;

mUndoBuffer.clear();
Expand Down Expand Up @@ -1203,6 +1212,7 @@ void TextEditor::SetTextLines(const std::vector<std::string> & aLines)
}

mTextChanged = true;
MarkSaved();
mScrollToTop = true;

mUndoBuffer.clear();
Expand Down Expand Up @@ -1985,6 +1995,14 @@ bool TextEditor::CanUndo() const
{
return !mReadOnly && mUndoIndex > 0;
}
int TextEditor::GetUndoIndex() const
{
return mUndoIndex;
}
size_t TextEditor::GetUndoBufferSize() const
{
return mUndoBuffer.size();
}

bool TextEditor::CanRedo() const
{
Expand All @@ -1995,12 +2013,52 @@ void TextEditor::Undo(int aSteps)
{
while (CanUndo() && aSteps-- > 0)
mUndoBuffer[--mUndoIndex].Undo(this);

if(mUndoIndex == mUndoIndexLastSave){
if(mUndoIndexFirstEdit >= mUndoIndexLastSave && !mMarkedUnsaved)
mSaveState = true;
} else
mSaveState = false;
}

void TextEditor::Redo(int aSteps)
{
while (CanRedo() && aSteps-- > 0)
mUndoBuffer[mUndoIndex++].Redo(this);

if(mUndoIndex == mUndoIndexLastSave){
if(mUndoIndexFirstEdit >= mUndoIndexLastSave && !mMarkedUnsaved)
mSaveState = true;
} else
mSaveState = false;
}

void TextEditor::MarkSaved()
{
mSaveState = true;
mMarkedUnsaved = false;
mUndoIndexLastSave = mUndoIndex;
mUndoIndexFirstEdit = mUndoIndex;
}

// Marks the file changed in a way that can't be reverted with undo/redo
void TextEditor::MarkUnsaved()
{
mSaveState = false;
mMarkedUnsaved = true;
}
void TextEditor::MarkSaved(bool saveState)
{
if(saveState){
mUndoIndexLastSave = mUndoIndex;
mUndoIndexFirstEdit = mUndoIndex;
} else
mMarkedUnsaved = true;
mSaveState = saveState;
mMarkedUnsaved = !saveState;
}
bool TextEditor::IsSaved() const{
return mSaveState;
}

const TextEditor::Palette & TextEditor::GetDarkPalette()
Expand Down
13 changes: 13 additions & 0 deletions TextEditor.h
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Original file line number Diff line number Diff line change
Expand Up @@ -262,6 +262,14 @@ class TextEditor
void Undo(int aSteps = 1);
void Redo(int aSteps = 1);

int GetUndoIndex() const;
size_t GetUndoBufferSize() const;

void MarkSaved();
void MarkUnsaved();
void MarkSaved(bool saveState);
bool IsSaved() const;

static const Palette& GetDarkPalette();
static const Palette& GetLightPalette();
static const Palette& GetRetroBluePalette();
Expand Down Expand Up @@ -386,4 +394,9 @@ class TextEditor
uint64_t mStartTime;

float mLastClick;

bool mSaveState;
bool mMarkedUnsaved;
int mUndoIndexFirstEdit;
int mUndoIndexLastSave;
};