From 1529fa5b420cc0b6edf3321e694182fcef42b092 Mon Sep 17 00:00:00 2001 From: Bartosz Taudul Date: Fri, 17 Aug 2018 14:31:33 +0200 Subject: [PATCH] Add ImGuiColorTextEdit. https://github.com/BalazsJako/ImGuiColorTextEdit.git 1fbba2fe8da83139a39789ea4ef8ca3077143b79 --- imguicolortextedit/LICENSE | 21 + imguicolortextedit/TextEditor.cpp | 2126 +++++++++++++++++++++++++++++ imguicolortextedit/TextEditor.h | 323 +++++ 3 files changed, 2470 insertions(+) create mode 100644 imguicolortextedit/LICENSE create mode 100644 imguicolortextedit/TextEditor.cpp create mode 100644 imguicolortextedit/TextEditor.h diff --git a/imguicolortextedit/LICENSE b/imguicolortextedit/LICENSE new file mode 100644 index 00000000..d0e3543c --- /dev/null +++ b/imguicolortextedit/LICENSE @@ -0,0 +1,21 @@ +MIT License + +Copyright (c) 2017 BalazsJako + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/imguicolortextedit/TextEditor.cpp b/imguicolortextedit/TextEditor.cpp new file mode 100644 index 00000000..25d84835 --- /dev/null +++ b/imguicolortextedit/TextEditor.cpp @@ -0,0 +1,2126 @@ +#include +#include +#include +#include +#include + +#include "TextEditor.h" + +static const int cTextStart = 7; + +// TODO +// - multiline comments vs single-line: latter is blocking start of a ML +// - handle non-monospace fonts +// - handle unicode/utf +// - testing + +template +bool equals(InputIt1 first1, InputIt1 last1, + InputIt2 first2, InputIt2 last2, BinaryPredicate p) +{ + for (; first1 != last1 && first2 != last2; ++first1, ++first2) + { + if (!p(*first1, *first2)) + return false; + } + return first1 == last1 && first2 == last2; +} + +TextEditor::TextEditor() + : mLineSpacing(0.0f) + , mUndoIndex(0) + , mTabSize(4) + , mOverwrite(false) + , mReadOnly(false) + , mWithinRender(false) + , mScrollToCursor(false) + , mTextChanged(false) + , mColorRangeMin(0) + , mColorRangeMax(0) + , mSelectionMode(SelectionMode::Normal) + , mCheckMultilineComments(true) +{ + SetPalette(GetDarkPalette()); + SetLanguageDefinition(LanguageDefinition::HLSL()); + mLines.push_back(Line()); +} + + +TextEditor::~TextEditor() +{ +} + +void TextEditor::SetLanguageDefinition(const LanguageDefinition & aLanguageDef) +{ + mLanguageDefinition = aLanguageDef; + mRegexList.clear(); + + for (auto& r : mLanguageDefinition.mTokenRegexStrings) + mRegexList.push_back(std::make_pair(std::regex(r.first, std::regex_constants::optimize), r.second)); +} + +void TextEditor::SetPalette(const Palette & aValue) +{ + mPalette = aValue; +} + +int TextEditor::AppendBuffer(std::string& aBuffer, char chr, int aIndex) +{ + if (chr != '\t') + { + aBuffer.push_back(chr); + return aIndex + 1; + } + else + { + auto num = mTabSize - aIndex % mTabSize; + for (int j = num; j > 0; --j) + aBuffer.push_back(' '); + return aIndex + num; + } +} + +std::string TextEditor::GetText(const Coordinates & aStart, const Coordinates & aEnd) const +{ + std::string result; + + int prevLineNo = aStart.mLine; + for (auto it = aStart; it <= aEnd; Advance(it)) + { + if (prevLineNo != it.mLine && it.mLine < (int) mLines.size()) + result.push_back('\n'); + + if (it == aEnd) + break; + + prevLineNo = it.mLine; + const auto& line = mLines[it.mLine]; + if (!line.empty() && it.mColumn < (int)line.size()) + result.push_back(line[it.mColumn].mChar); + } + + return result; +} + +TextEditor::Coordinates TextEditor::GetActualCursorCoordinates() const +{ + return SanitizeCoordinates(mState.mCursorPosition); +} + +TextEditor::Coordinates TextEditor::SanitizeCoordinates(const Coordinates & aValue) const +{ + auto line = aValue.mLine; + auto column = aValue.mColumn; + + if (line >= (int)mLines.size()) + { + line = (int)mLines.size() - 1; + column = mLines.empty() ? 0 : (int)mLines[line].size(); + } + else + { + column = mLines.empty() ? 0 : std::min((int)mLines[line].size(), aValue.mColumn); + } + + return Coordinates(line, column); +} + +void TextEditor::Advance(Coordinates & aCoordinates) const +{ + if (aCoordinates.mLine < (int)mLines.size()) + { + auto& line = mLines[aCoordinates.mLine]; + + if (aCoordinates.mColumn + 1 < (int)line.size()) + ++aCoordinates.mColumn; + else + { + ++aCoordinates.mLine; + aCoordinates.mColumn = 0; + } + } +} + +void TextEditor::DeleteRange(const Coordinates & aStart, const Coordinates & aEnd) +{ + assert(aEnd >= aStart); + assert(!mReadOnly); + + if (aEnd == aStart) + return; + + if (aStart.mLine == aEnd.mLine) + { + auto& line = mLines[aStart.mLine]; + if (aEnd.mColumn >= (int)line.size()) + line.erase(line.begin() + aStart.mColumn, line.end()); + else + line.erase(line.begin() + aStart.mColumn, line.begin() + aEnd.mColumn); + } + else + { + auto& firstLine = mLines[aStart.mLine]; + auto& lastLine = mLines[aEnd.mLine]; + + firstLine.erase(firstLine.begin() + aStart.mColumn, firstLine.end()); + lastLine.erase(lastLine.begin(), lastLine.begin() + aEnd.mColumn); + + if (aStart.mLine < aEnd.mLine) + firstLine.insert(firstLine.end(), lastLine.begin(), lastLine.end()); + + if (aStart.mLine < aEnd.mLine) + RemoveLine(aStart.mLine + 1, aEnd.mLine + 1); + } + + mTextChanged = true; +} + +int TextEditor::InsertTextAt(Coordinates& /* inout */ aWhere, const char * aValue) +{ + assert(!mReadOnly); + + int totalLines = 0; + auto chr = *aValue; + while (chr != '\0') + { + if (mLines.empty()) + mLines.push_back(Line()); + + if (chr == '\r') + { + // skip + } + else if (chr == '\n') + { + if (aWhere.mColumn < (int)mLines[aWhere.mLine].size()) + { + auto& newLine = InsertLine(aWhere.mLine + 1); + auto& line = mLines[aWhere.mLine]; + newLine.insert(newLine.begin(), line.begin() + aWhere.mColumn, line.end()); + line.erase(line.begin() + aWhere.mColumn, line.end()); + } + else + { + InsertLine(aWhere.mLine + 1); + } + ++aWhere.mLine; + aWhere.mColumn = 0; + ++totalLines; + } + else + { + auto& line = mLines[aWhere.mLine]; + line.insert(line.begin() + aWhere.mColumn, Glyph(chr, PaletteIndex::Default)); + ++aWhere.mColumn; + } + chr = *(++aValue); + + mTextChanged = true; + } + + return totalLines; +} + +void TextEditor::AddUndo(UndoRecord& aValue) +{ + assert(!mReadOnly); + + mUndoBuffer.resize(mUndoIndex + 1); + mUndoBuffer.back() = aValue; + ++mUndoIndex; +} + +TextEditor::Coordinates TextEditor::ScreenPosToCoordinates(const ImVec2& aPosition) const +{ + ImVec2 origin = ImGui::GetCursorScreenPos(); + ImVec2 local(aPosition.x - origin.x, aPosition.y - origin.y); + + int lineNo = std::max(0, (int)floor(local.y / mCharAdvance.y)); + int columnCoord = std::max(0, (int)floor(local.x / mCharAdvance.x) - cTextStart); + + int column = 0; + if (lineNo >= 0 && lineNo < (int)mLines.size()) + { + auto& line = mLines[lineNo]; + auto distance = 0; + while (distance < columnCoord && column < (int)line.size()) + { + if (line[column].mChar == '\t') + distance = (distance / mTabSize) * mTabSize + mTabSize; + else + ++distance; + ++column; + } + } + return Coordinates(lineNo, column); +} + +TextEditor::Coordinates TextEditor::FindWordStart(const Coordinates & aFrom) const +{ + Coordinates at = aFrom; + if (at.mLine >= (int)mLines.size()) + return at; + + auto& line = mLines[at.mLine]; + + if (at.mColumn >= (int)line.size()) + return at; + + auto cstart = (PaletteIndex)line[at.mColumn].mColorIndex; + while (at.mColumn > 0) + { + if (cstart != (PaletteIndex)line[at.mColumn - 1].mColorIndex) + break; + --at.mColumn; + } + return at; +} + +TextEditor::Coordinates TextEditor::FindWordEnd(const Coordinates & aFrom) const +{ + Coordinates at = aFrom; + if (at.mLine >= (int)mLines.size()) + return at; + + auto& line = mLines[at.mLine]; + + if (at.mColumn >= (int)line.size()) + return at; + + auto cstart = (PaletteIndex)line[at.mColumn].mColorIndex; + while (at.mColumn < (int)line.size()) + { + if (cstart != (PaletteIndex)line[at.mColumn].mColorIndex) + break; + ++at.mColumn; + } + return at; +} + +bool TextEditor::IsOnWordBoundary(const Coordinates & aAt) const +{ + if (aAt.mLine >= (int)mLines.size() || aAt.mColumn == 0) + return true; + + auto& line = mLines[aAt.mLine]; + if (aAt.mColumn >= (int)line.size()) + return true; + + return line[aAt.mColumn].mColorIndex != line[aAt.mColumn - 1].mColorIndex; +} + +void TextEditor::RemoveLine(int aStart, int aEnd) +{ + assert(!mReadOnly); + + ErrorMarkers etmp; + for (auto& i : mErrorMarkers) + { + ErrorMarkers::value_type e(i.first >= aStart ? i.first - 1 : i.first, i.second); + if (e.first >= aStart && e.first <= aEnd) + continue; + etmp.insert(e); + } + mErrorMarkers = std::move(etmp); + + Breakpoints btmp; + for (auto i : mBreakpoints) + { + if (i >= aStart && i <= aEnd) + continue; + btmp.insert(i >= aStart ? i - 1 : i); + } + mBreakpoints = std::move(btmp); + + mLines.erase(mLines.begin() + aStart, mLines.begin() + aEnd); + + mTextChanged = true; +} + +void TextEditor::RemoveLine(int aIndex) +{ + assert(!mReadOnly); + + ErrorMarkers etmp; + for (auto& i : mErrorMarkers) + { + ErrorMarkers::value_type e(i.first >= aIndex ? i.first - 1 : i.first, i.second); + if (e.first == aIndex) + continue; + etmp.insert(e); + } + mErrorMarkers = std::move(etmp); + + Breakpoints btmp; + for (auto i : mBreakpoints) + { + if (i == aIndex) + continue; + btmp.insert(i >= aIndex ? i - 1 : i); + } + mBreakpoints = std::move(btmp); + + mLines.erase(mLines.begin() + aIndex); + + mTextChanged = true; +} + +TextEditor::Line& TextEditor::InsertLine(int aIndex) +{ + assert(!mReadOnly); + + auto& result = *mLines.insert(mLines.begin() + aIndex, Line()); + + ErrorMarkers etmp; + for (auto& i : mErrorMarkers) + etmp.insert(ErrorMarkers::value_type(i.first >= aIndex ? i.first + 1 : i.first, i.second)); + mErrorMarkers = std::move(etmp); + + Breakpoints btmp; + for (auto i : mBreakpoints) + btmp.insert(i >= aIndex ? i + 1 : i); + mBreakpoints = std::move(btmp); + + return result; +} + +std::string TextEditor::GetWordUnderCursor() const +{ + auto c = GetCursorPosition(); + return GetWordAt(c); +} + +std::string TextEditor::GetWordAt(const Coordinates & aCoords) const +{ + auto start = FindWordStart(aCoords); + auto end = FindWordEnd(aCoords); + + std::string r; + + for (auto it = start; it < end; Advance(it)) + r.push_back(mLines[it.mLine][it.mColumn].mChar); + + return r; +} + +void TextEditor::Render(const char* aTitle, const ImVec2& aSize, bool aBorder) +{ + mWithinRender = true; + mTextChanged = false; + + ImGuiIO& io = ImGui::GetIO(); + auto xadv = (io.Fonts->Fonts[0]->IndexAdvanceX['X']); + mCharAdvance = ImVec2(io.FontGlobalScale * xadv, io.FontGlobalScale * io.Fonts->Fonts[0]->FontSize + mLineSpacing); + + ImGui::PushStyleColor(ImGuiCol_ChildWindowBg, ImGui::ColorConvertU32ToFloat4(mPalette[(int)PaletteIndex::Background])); + ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(0.0f, 0.0f)); + ImGui::BeginChild(aTitle, aSize, aBorder, ImGuiWindowFlags_HorizontalScrollbar | ImGuiWindowFlags_NoMove); + + ImGui::PushAllowKeyboardFocus(true); + + auto shift = io.KeyShift; + auto ctrl = io.KeyCtrl; + auto alt = io.KeyAlt; + + if (ImGui::IsWindowFocused()) + { + if (ImGui::IsWindowHovered()) + ImGui::SetMouseCursor(ImGuiMouseCursor_TextInput); + //ImGui::CaptureKeyboardFromApp(true); + + io.WantCaptureKeyboard = true; + io.WantTextInput = true; + + if (!IsReadOnly() && ImGui::IsKeyPressed('Z')) + if (ctrl && !shift && !alt) + Undo(); + if (!IsReadOnly() && ImGui::IsKeyPressed(ImGui::GetKeyIndex(ImGuiKey_Backspace))) + if (!ctrl && !shift && alt) + Undo(); + if (!IsReadOnly() && ctrl && !shift && !alt && ImGui::IsKeyPressed('Y')) + Redo(); + + if (!ctrl && !alt && ImGui::IsKeyPressed(ImGui::GetKeyIndex(ImGuiKey_UpArrow))) + MoveUp(1, shift); + else if (!ctrl && !alt && ImGui::IsKeyPressed(ImGui::GetKeyIndex(ImGuiKey_DownArrow))) + MoveDown(1, shift); + else if (!alt && ImGui::IsKeyPressed(ImGui::GetKeyIndex(ImGuiKey_LeftArrow))) + MoveLeft(1, shift, ctrl); + else if (!alt && ImGui::IsKeyPressed(ImGui::GetKeyIndex(ImGuiKey_RightArrow))) + MoveRight(1, shift, ctrl); + else if (!alt && ImGui::IsKeyPressed(ImGui::GetKeyIndex(ImGuiKey_PageUp))) + MoveUp(GetPageSize() - 4, shift); + else if (!alt && ImGui::IsKeyPressed(ImGui::GetKeyIndex(ImGuiKey_PageDown))) + MoveDown(GetPageSize() - 4, shift); + else if (!alt && ctrl && ImGui::IsKeyPressed(ImGui::GetKeyIndex(ImGuiKey_Home))) + MoveTop(shift); + else if (ctrl && !alt && ImGui::IsKeyPressed(ImGui::GetKeyIndex(ImGuiKey_End))) + MoveBottom(shift); + else if (!ctrl && !alt && ImGui::IsKeyPressed(ImGui::GetKeyIndex(ImGuiKey_Home))) + MoveHome(shift); + else if (!ctrl && !alt && ImGui::IsKeyPressed(ImGui::GetKeyIndex(ImGuiKey_End))) + MoveEnd(shift); + else if (!IsReadOnly() && !ctrl && !shift && !alt && ImGui::IsKeyPressed(ImGui::GetKeyIndex(ImGuiKey_Delete))) + Delete(); + else if (!IsReadOnly() && !ctrl && !shift && !alt && ImGui::IsKeyPressed(ImGui::GetKeyIndex(ImGuiKey_Backspace))) + BackSpace(); + else if (!ctrl && !shift && !alt && ImGui::IsKeyPressed(45)) + mOverwrite ^= true; + else if (ctrl && !shift && !alt && ImGui::IsKeyPressed(45)) + Copy(); + else if (ctrl && !shift && !alt && ImGui::IsKeyPressed('C')) + Copy(); + else if (!IsReadOnly() && !ctrl && shift && !alt && ImGui::IsKeyPressed(45)) + Paste(); + else if (!IsReadOnly() && ctrl && !shift && !alt && ImGui::IsKeyPressed('V')) + Paste(); + else if (ctrl && !shift && !alt && ImGui::IsKeyPressed('X')) + Cut(); + else if (!ctrl && shift && !alt && ImGui::IsKeyPressed(ImGui::GetKeyIndex(ImGuiKey_Delete))) + Cut(); + else if (ctrl && !shift && !alt && ImGui::IsKeyPressed(ImGui::GetKeyIndex(ImGuiKey_A))) + SelectAll(); + + if (!IsReadOnly()) + { + for (size_t i = 0; i < sizeof(io.InputCharacters) / sizeof(io.InputCharacters[0]); i++) + { + auto c = (unsigned char)io.InputCharacters[i]; + if (c != 0) + { + if (isprint(c) || isspace(c)) + { + if (c == '\r') + c = '\n'; + EnterCharacter((char)c); + } + } + } + } + } + + if (ImGui::IsWindowHovered()) + { + static float lastClick = -1.0f; + if (!shift && !alt) + { + auto click = ImGui::IsMouseClicked(0); + auto doubleClick = ImGui::IsMouseDoubleClicked(0); + auto t = ImGui::GetTime(); + auto tripleClick = click && !doubleClick && t - lastClick < io.MouseDoubleClickTime; + if (tripleClick) + { + printf("triple\n"); + if (!ctrl) + { + mState.mCursorPosition = mInteractiveStart = mInteractiveEnd = SanitizeCoordinates(ScreenPosToCoordinates(ImGui::GetMousePos())); + mSelectionMode = SelectionMode::Line; + SetSelection(mInteractiveStart, mInteractiveEnd, mSelectionMode); + } + + lastClick = -1.0f; + } + else if (doubleClick) + { + printf("double\n"); + if (!ctrl) + { + mState.mCursorPosition = mInteractiveStart = mInteractiveEnd = SanitizeCoordinates(ScreenPosToCoordinates(ImGui::GetMousePos())); + if (mSelectionMode == SelectionMode::Line) + mSelectionMode = SelectionMode::Normal; + else + mSelectionMode = SelectionMode::Word; + SetSelection(mInteractiveStart, mInteractiveEnd, mSelectionMode); + } + + lastClick = ImGui::GetTime(); + } + else if (click) + { + printf("single\n"); + mState.mCursorPosition = mInteractiveStart = mInteractiveEnd = SanitizeCoordinates(ScreenPosToCoordinates(ImGui::GetMousePos())); + if (ctrl) + mSelectionMode = SelectionMode::Word; + else + mSelectionMode = SelectionMode::Normal; + SetSelection(mInteractiveStart, mInteractiveEnd, mSelectionMode); + + lastClick = ImGui::GetTime(); + } + else if (ImGui::IsMouseDragging(0) && ImGui::IsMouseDown(0)) + { + io.WantCaptureMouse = true; + mState.mCursorPosition = mInteractiveEnd = SanitizeCoordinates(ScreenPosToCoordinates(ImGui::GetMousePos())); + SetSelection(mInteractiveStart, mInteractiveEnd, mSelectionMode); + } + else + { + } + } + + //if (!ImGui::IsMouseDown(0)) + // mWordSelectionMode = false; + } + + ColorizeInternal(); + + static std::string buffer; + auto contentSize = ImGui::GetWindowContentRegionMax(); + auto drawList = ImGui::GetWindowDrawList(); + int appendIndex = 0; + int longest = cTextStart; + + ImVec2 cursorScreenPos = ImGui::GetCursorScreenPos(); + auto scrollX = ImGui::GetScrollX(); + auto scrollY = ImGui::GetScrollY(); + + auto lineNo = (int)floor(scrollY / mCharAdvance.y); + auto lineMax = std::max(0, std::min((int)mLines.size() - 1, lineNo + (int)floor((scrollY + contentSize.y) / mCharAdvance.y))); + if (!mLines.empty()) + { + while (lineNo <= lineMax) + { + ImVec2 lineStartScreenPos = ImVec2(cursorScreenPos.x, cursorScreenPos.y + lineNo * mCharAdvance.y); + ImVec2 textScreenPos = ImVec2(lineStartScreenPos.x + mCharAdvance.x * cTextStart, lineStartScreenPos.y); + + auto& line = mLines[lineNo]; + longest = std::max(cTextStart + TextDistanceToLineStart(Coordinates(lineNo, (int) line.size())), longest); + auto columnNo = 0; + Coordinates lineStartCoord(lineNo, 0); + Coordinates lineEndCoord(lineNo, (int)line.size()); + + int sstart = -1; + int ssend = -1; + + assert(mState.mSelectionStart <= mState.mSelectionEnd); + if (mState.mSelectionStart <= lineEndCoord) + sstart = mState.mSelectionStart > lineStartCoord ? TextDistanceToLineStart(mState.mSelectionStart) : 0; + if (mState.mSelectionEnd > lineStartCoord) + ssend = TextDistanceToLineStart(mState.mSelectionEnd < lineEndCoord ? mState.mSelectionEnd : lineEndCoord); + + if (mState.mSelectionEnd.mLine > lineNo) + ++ssend; + + if (sstart != -1 && ssend != -1 && sstart < ssend) + { + ImVec2 vstart(lineStartScreenPos.x + (mCharAdvance.x) * (sstart + cTextStart), lineStartScreenPos.y); + ImVec2 vend(lineStartScreenPos.x + (mCharAdvance.x) * (ssend + cTextStart), lineStartScreenPos.y + mCharAdvance.y); + drawList->AddRectFilled(vstart, vend, mPalette[(int)PaletteIndex::Selection]); + } + + static char buf[16]; + auto start = ImVec2(lineStartScreenPos.x + scrollX, lineStartScreenPos.y); + + if (mBreakpoints.find(lineNo + 1) != mBreakpoints.end()) + { + auto end = ImVec2(lineStartScreenPos.x + contentSize.x + 2.0f * scrollX, lineStartScreenPos.y + mCharAdvance.y); + drawList->AddRectFilled(start, end, mPalette[(int)PaletteIndex::Breakpoint]); + } + + auto errorIt = mErrorMarkers.find(lineNo + 1); + if (errorIt != mErrorMarkers.end()) + { + auto end = ImVec2(lineStartScreenPos.x + contentSize.x + 2.0f * scrollX, lineStartScreenPos.y + mCharAdvance.y); + drawList->AddRectFilled(start, end, mPalette[(int)PaletteIndex::ErrorMarker]); + + if (ImGui::IsMouseHoveringRect(lineStartScreenPos, end)) + { + ImGui::BeginTooltip(); + ImGui::PushStyleColor(ImGuiCol_Text, ImVec4(1.0f, 0.2f, 0.2f, 1.0f)); + ImGui::Text("Error at line %d:", errorIt->first); + ImGui::PopStyleColor(); + ImGui::Separator(); + ImGui::PushStyleColor(ImGuiCol_Text, ImVec4(1.0f, 1.0f, 0.2f, 1.0f)); + ImGui::Text("%s", errorIt->second.c_str()); + ImGui::PopStyleColor(); + ImGui::EndTooltip(); + } + } + + auto chars = snprintf(buf, 16, "%6d", lineNo + 1); + assert(chars >= 0 && chars < 16); + drawList->AddText(ImVec2(lineStartScreenPos.x /*+ mCharAdvance.x * 1*/, lineStartScreenPos.y), mPalette[(int)PaletteIndex::LineNumber], buf); + + if (mState.mCursorPosition.mLine == lineNo) + { + auto focused = ImGui::IsWindowFocused(); + + if (!HasSelection()) + { + auto end = ImVec2(start.x + contentSize.x + scrollX, start.y + mCharAdvance.y); + drawList->AddRectFilled(start, end, mPalette[(int)(focused ? PaletteIndex::CurrentLineFill : PaletteIndex::CurrentLineFillInactive)]); + drawList->AddRect(start, end, mPalette[(int)PaletteIndex::CurrentLineEdge], 1.0f); + } + + int cx = TextDistanceToLineStart(mState.mCursorPosition); + + if (focused) + { + static auto timeStart = std::chrono::system_clock::now(); + auto timeEnd = std::chrono::system_clock::now(); + auto diff = timeEnd - timeStart; + auto elapsed = std::chrono::duration_cast(diff).count(); + if (elapsed > 400) + { + ImVec2 cstart(lineStartScreenPos.x + mCharAdvance.x * (cx + cTextStart), lineStartScreenPos.y); + ImVec2 cend(lineStartScreenPos.x + mCharAdvance.x * (cx + cTextStart) + (mOverwrite ? mCharAdvance.x : 1.0f), lineStartScreenPos.y + mCharAdvance.y); + drawList->AddRectFilled(cstart, cend, mPalette[(int)PaletteIndex::Cursor]); + if (elapsed > 800) + timeStart = timeEnd; + } + } + } + + appendIndex = 0; + auto prevColor = line.empty() ? PaletteIndex::Default : (line[0].mMultiLineComment ? PaletteIndex::MultiLineComment : line[0].mColorIndex); + + for (auto& glyph : line) + { + auto color = glyph.mMultiLineComment ? PaletteIndex::MultiLineComment : glyph.mColorIndex; + + if (color != prevColor && !buffer.empty()) + { + drawList->AddText(textScreenPos, mPalette[(uint8_t)prevColor], buffer.c_str()); + textScreenPos.x += mCharAdvance.x * buffer.length(); + buffer.clear(); + prevColor = color; + } + appendIndex = AppendBuffer(buffer, glyph.mChar, appendIndex); + ++columnNo; + } + + if (!buffer.empty()) + { + drawList->AddText(textScreenPos, mPalette[(uint8_t)prevColor], buffer.c_str()); + buffer.clear(); + } + appendIndex = 0; + lineStartScreenPos.y += mCharAdvance.y; + textScreenPos.x = lineStartScreenPos.x + mCharAdvance.x * cTextStart; + textScreenPos.y = lineStartScreenPos.y; + ++lineNo; + } + + auto id = GetWordAt(ScreenPosToCoordinates(ImGui::GetMousePos())); + if (!id.empty()) + { + auto it = mLanguageDefinition.mIdentifiers.find(id); + if (it != mLanguageDefinition.mIdentifiers.end()) + { + ImGui::BeginTooltip(); + ImGui::TextUnformatted(it->second.mDeclaration.c_str()); + ImGui::EndTooltip(); + } + else + { + auto pi = mLanguageDefinition.mPreprocIdentifiers.find(id); + if (pi != mLanguageDefinition.mPreprocIdentifiers.end()) + { + ImGui::BeginTooltip(); + ImGui::TextUnformatted(pi->second.mDeclaration.c_str()); + ImGui::EndTooltip(); + } + } + } + } + + + ImGui::Dummy(ImVec2((longest + 2) * mCharAdvance.x, mLines.size() * mCharAdvance.y)); + + if (mScrollToCursor) + { + EnsureCursorVisible(); + ImGui::SetWindowFocus(); + mScrollToCursor = false; + } + + ImGui::PopAllowKeyboardFocus(); + ImGui::EndChild(); + ImGui::PopStyleVar(); + ImGui::PopStyleColor(); + + mWithinRender = false; +} + +void TextEditor::SetText(const std::string & aText) +{ + mLines.clear(); + for (auto chr : aText) + { + if (mLines.empty()) + mLines.push_back(Line()); + if (chr == '\n') + mLines.push_back(Line()); + else + { + mLines.back().push_back(Glyph(chr, PaletteIndex::Default)); + } + + mTextChanged = true; + } + + mUndoBuffer.clear(); + + Colorize(); +} + +void TextEditor::EnterCharacter(Char aChar) +{ + assert(!mReadOnly); + + UndoRecord u; + + u.mBefore = mState; + + if (HasSelection()) + { + u.mRemoved = GetSelectedText(); + u.mRemovedStart = mState.mSelectionStart; + u.mRemovedEnd = mState.mSelectionEnd; + DeleteSelection(); + } + + auto coord = GetActualCursorCoordinates(); + u.mAddedStart = coord; + + if (mLines.empty()) + mLines.push_back(Line()); + + if (aChar == '\n') + { + InsertLine(coord.mLine + 1); + auto& line = mLines[coord.mLine]; + auto& newLine = mLines[coord.mLine + 1]; + newLine.insert(newLine.begin(), line.begin() + coord.mColumn, line.end()); + line.erase(line.begin() + coord.mColumn, line.begin() + line.size()); + mState.mCursorPosition = Coordinates(coord.mLine + 1, 0); + } + else + { + auto& line = mLines[coord.mLine]; + if (mOverwrite && (int)line.size() > coord.mColumn) + line[coord.mColumn] = Glyph(aChar, PaletteIndex::Default); + else + line.insert(line.begin() + coord.mColumn, Glyph(aChar, PaletteIndex::Default)); + mState.mCursorPosition = coord; + ++mState.mCursorPosition.mColumn; + } + + mTextChanged = true; + + u.mAdded = aChar; + u.mAddedEnd = GetActualCursorCoordinates(); + u.mAfter = mState; + + AddUndo(u); + + Colorize(coord.mLine - 1, 3); + EnsureCursorVisible(); +} + +void TextEditor::SetReadOnly(bool aValue) +{ + mReadOnly = aValue; +} + +void TextEditor::SetCursorPosition(const Coordinates & aPosition) +{ + if (mState.mCursorPosition != aPosition) + { + mState.mCursorPosition = aPosition; + EnsureCursorVisible(); + } +} + +void TextEditor::SetSelectionStart(const Coordinates & aPosition) +{ + mState.mSelectionStart = SanitizeCoordinates(aPosition); + if (mState.mSelectionStart > mState.mSelectionEnd) + std::swap(mState.mSelectionStart, mState.mSelectionEnd); +} + +void TextEditor::SetSelectionEnd(const Coordinates & aPosition) +{ + mState.mSelectionEnd = SanitizeCoordinates(aPosition); + if (mState.mSelectionStart > mState.mSelectionEnd) + std::swap(mState.mSelectionStart, mState.mSelectionEnd); +} + +void TextEditor::SetSelection(const Coordinates & aStart, const Coordinates & aEnd, SelectionMode aMode) +{ + mState.mSelectionStart = SanitizeCoordinates(aStart); + mState.mSelectionEnd = SanitizeCoordinates(aEnd); + if (aStart > aEnd) + std::swap(mState.mSelectionStart, mState.mSelectionEnd); + + switch (aMode) + { + case TextEditor::SelectionMode::Normal: + break; + case TextEditor::SelectionMode::Word: + { + mState.mSelectionStart = FindWordStart(mState.mSelectionStart); + if (!IsOnWordBoundary(mState.mSelectionEnd)) + mState.mSelectionEnd = FindWordEnd(FindWordStart(mState.mSelectionEnd)); + break; + } + case TextEditor::SelectionMode::Line: + { + const auto lineNo = mState.mSelectionEnd.mLine; + const auto lineSize = lineNo < mLines.size() ? mLines[lineNo].size() : 0; + mState.mSelectionStart = Coordinates(mState.mSelectionStart.mLine, 0); + mState.mSelectionEnd = Coordinates(lineNo, (int) lineSize); + break; + } + default: + break; + } +} + +void TextEditor::InsertText(const std::string & aValue) +{ + InsertText(aValue.c_str()); +} + +void TextEditor::InsertText(const char * aValue) +{ + if (aValue == nullptr) + return; + + auto pos = GetActualCursorCoordinates(); + auto start = std::min(pos, mState.mSelectionStart); + int totalLines = pos.mLine - start.mLine; + + totalLines += InsertTextAt(pos, aValue); + + SetSelection(pos, pos); + SetCursorPosition(pos); + Colorize(start.mLine - 1, totalLines + 2); +} + +void TextEditor::DeleteSelection() +{ + assert(mState.mSelectionEnd >= mState.mSelectionStart); + + if (mState.mSelectionEnd == mState.mSelectionStart) + return; + + DeleteRange(mState.mSelectionStart, mState.mSelectionEnd); + + SetSelection(mState.mSelectionStart, mState.mSelectionStart); + SetCursorPosition(mState.mSelectionStart); + Colorize(mState.mSelectionStart.mLine, 1); +} + +void TextEditor::MoveUp(int aAmount, bool aSelect) +{ + auto oldPos = mState.mCursorPosition; + mState.mCursorPosition.mLine = std::max(0, mState.mCursorPosition.mLine - aAmount); + if (oldPos != mState.mCursorPosition) + { + if (aSelect) + { + if (oldPos == mInteractiveStart) + mInteractiveStart = mState.mCursorPosition; + else if (oldPos == mInteractiveEnd) + mInteractiveEnd = mState.mCursorPosition; + else + { + mInteractiveStart = mState.mCursorPosition; + mInteractiveEnd = oldPos; + } + } + else + mInteractiveStart = mInteractiveEnd = mState.mCursorPosition; + SetSelection(mInteractiveStart, mInteractiveEnd); + + EnsureCursorVisible(); + } +} + +void TextEditor::MoveDown(int aAmount, bool aSelect) +{ + assert(mState.mCursorPosition.mColumn >= 0); + auto oldPos = mState.mCursorPosition; + mState.mCursorPosition.mLine = std::max(0, std::min((int)mLines.size() - 1, mState.mCursorPosition.mLine + aAmount)); + + if (mState.mCursorPosition != oldPos) + { + if (aSelect) + { + if (oldPos == mInteractiveEnd) + mInteractiveEnd = mState.mCursorPosition; + else if (oldPos == mInteractiveStart) + mInteractiveStart = mState.mCursorPosition; + else + { + mInteractiveStart = oldPos; + mInteractiveEnd = mState.mCursorPosition; + } + } + else + mInteractiveStart = mInteractiveEnd = mState.mCursorPosition; + SetSelection(mInteractiveStart, mInteractiveEnd); + + EnsureCursorVisible(); + } +} + +void TextEditor::MoveLeft(int aAmount, bool aSelect, bool aWordMode) +{ + if (mLines.empty()) + return; + + auto oldPos = mState.mCursorPosition; + mState.mCursorPosition = GetActualCursorCoordinates(); + + while (aAmount-- > 0) + { + if (mState.mCursorPosition.mColumn == 0) + { + if (mState.mCursorPosition.mLine > 0) + { + --mState.mCursorPosition.mLine; + mState.mCursorPosition.mColumn = (int)mLines[mState.mCursorPosition.mLine].size(); + } + } + else + { + mState.mCursorPosition.mColumn = std::max(0, mState.mCursorPosition.mColumn - 1); + if (aWordMode) + mState.mCursorPosition = FindWordStart(mState.mCursorPosition); + } + } + + assert(mState.mCursorPosition.mColumn >= 0); + if (aSelect) + { + if (oldPos == mInteractiveStart) + mInteractiveStart = mState.mCursorPosition; + else if (oldPos == mInteractiveEnd) + mInteractiveEnd = mState.mCursorPosition; + else + { + mInteractiveStart = mState.mCursorPosition; + mInteractiveEnd = oldPos; + } + } + else + mInteractiveStart = mInteractiveEnd = mState.mCursorPosition; + SetSelection(mInteractiveStart, mInteractiveEnd, aSelect && aWordMode ? SelectionMode::Word : SelectionMode::Normal); + + EnsureCursorVisible(); +} + +void TextEditor::MoveRight(int aAmount, bool aSelect, bool aWordMode) +{ + auto oldPos = mState.mCursorPosition; + + if (mLines.empty()) + return; + + while (aAmount-- > 0) + { + auto& line = mLines[mState.mCursorPosition.mLine]; + if (mState.mCursorPosition.mColumn >= (int)line.size()) + { + if (mState.mCursorPosition.mLine < (int)mLines.size() - 1) + { + mState.mCursorPosition.mLine = std::max(0, std::min((int)mLines.size() - 1, mState.mCursorPosition.mLine + 1)); + mState.mCursorPosition.mColumn = 0; + } + } + else + { + mState.mCursorPosition.mColumn = std::max(0, std::min((int)line.size(), mState.mCursorPosition.mColumn + 1)); + if (aWordMode) + mState.mCursorPosition = FindWordEnd(mState.mCursorPosition); + } + } + + if (aSelect) + { + if (oldPos == mInteractiveEnd) + mInteractiveEnd = SanitizeCoordinates(mState.mCursorPosition); + else if (oldPos == mInteractiveStart) + mInteractiveStart = mState.mCursorPosition; + else + { + mInteractiveStart = oldPos; + mInteractiveEnd = mState.mCursorPosition; + } + } + else + mInteractiveStart = mInteractiveEnd = mState.mCursorPosition; + SetSelection(mInteractiveStart, mInteractiveEnd, aSelect && aWordMode ? SelectionMode::Word : SelectionMode::Normal); + + EnsureCursorVisible(); +} + +void TextEditor::MoveTop(bool aSelect) +{ + auto oldPos = mState.mCursorPosition; + SetCursorPosition(Coordinates(0, 0)); + + if (mState.mCursorPosition != oldPos) + { + if (aSelect) + { + mInteractiveEnd = oldPos; + mInteractiveStart = mState.mCursorPosition; + } + else + mInteractiveStart = mInteractiveEnd = mState.mCursorPosition; + SetSelection(mInteractiveStart, mInteractiveEnd); + } +} + +void TextEditor::TextEditor::MoveBottom(bool aSelect) +{ + auto oldPos = GetCursorPosition(); + auto newPos = Coordinates((int)mLines.size() - 1, 0); + SetCursorPosition(newPos); + if (aSelect) + { + mInteractiveStart = oldPos; + mInteractiveEnd = newPos; + } + else + mInteractiveStart = mInteractiveEnd = newPos; + SetSelection(mInteractiveStart, mInteractiveEnd); +} + +void TextEditor::MoveHome(bool aSelect) +{ + auto oldPos = mState.mCursorPosition; + SetCursorPosition(Coordinates(mState.mCursorPosition.mLine, 0)); + + if (mState.mCursorPosition != oldPos) + { + if (aSelect) + { + if (oldPos == mInteractiveStart) + mInteractiveStart = mState.mCursorPosition; + else if (oldPos == mInteractiveEnd) + mInteractiveEnd = mState.mCursorPosition; + else + { + mInteractiveStart = mState.mCursorPosition; + mInteractiveEnd = oldPos; + } + } + else + mInteractiveStart = mInteractiveEnd = mState.mCursorPosition; + SetSelection(mInteractiveStart, mInteractiveEnd); + } +} + +void TextEditor::MoveEnd(bool aSelect) +{ + auto oldPos = mState.mCursorPosition; + SetCursorPosition(Coordinates(mState.mCursorPosition.mLine, (int)mLines[oldPos.mLine].size())); + + if (mState.mCursorPosition != oldPos) + { + if (aSelect) + { + if (oldPos == mInteractiveEnd) + mInteractiveEnd = mState.mCursorPosition; + else if (oldPos == mInteractiveStart) + mInteractiveStart = mState.mCursorPosition; + else + { + mInteractiveStart = oldPos; + mInteractiveEnd = mState.mCursorPosition; + } + } + else + mInteractiveStart = mInteractiveEnd = mState.mCursorPosition; + SetSelection(mInteractiveStart, mInteractiveEnd); + } +} + +void TextEditor::Delete() +{ + assert(!mReadOnly); + + if (mLines.empty()) + return; + + UndoRecord u; + u.mBefore = mState; + + if (HasSelection()) + { + u.mRemoved = GetSelectedText(); + u.mRemovedStart = mState.mSelectionStart; + u.mRemovedEnd = mState.mSelectionEnd; + + DeleteSelection(); + } + else + { + auto pos = GetActualCursorCoordinates(); + SetCursorPosition(pos); + auto& line = mLines[pos.mLine]; + + if (pos.mColumn == (int)line.size()) + { + if (pos.mLine == (int)mLines.size() - 1) + return; + + u.mRemoved = '\n'; + u.mRemovedStart = u.mRemovedEnd = GetActualCursorCoordinates(); + Advance(u.mRemovedEnd); + + auto& nextLine = mLines[pos.mLine + 1]; + line.insert(line.end(), nextLine.begin(), nextLine.end()); + RemoveLine(pos.mLine + 1); + } + else + { + u.mRemoved = line[pos.mColumn].mChar; + u.mRemovedStart = u.mRemovedEnd = GetActualCursorCoordinates(); + u.mRemovedEnd.mColumn++; + + line.erase(line.begin() + pos.mColumn); + } + + mTextChanged = true; + + Colorize(pos.mLine, 1); + } + + u.mAfter = mState; + AddUndo(u); +} + +void TextEditor::BackSpace() +{ + assert(!mReadOnly); + + if (mLines.empty()) + return; + + + UndoRecord u; + u.mBefore = mState; + + if (HasSelection()) + { + u.mRemoved = GetSelectedText(); + u.mRemovedStart = mState.mSelectionStart; + u.mRemovedEnd = mState.mSelectionEnd; + + DeleteSelection(); + } + else + { + auto pos = GetActualCursorCoordinates(); + SetCursorPosition(pos); + + if (mState.mCursorPosition.mColumn == 0) + { + if (mState.mCursorPosition.mLine == 0) + return; + + u.mRemoved = '\n'; + u.mRemovedStart = u.mRemovedEnd = GetActualCursorCoordinates(); + Advance(u.mRemovedEnd); + + auto& line = mLines[mState.mCursorPosition.mLine]; + auto& prevLine = mLines[mState.mCursorPosition.mLine - 1]; + auto prevSize = (int)prevLine.size(); + prevLine.insert(prevLine.end(), line.begin(), line.end()); + RemoveLine(mState.mCursorPosition.mLine); + --mState.mCursorPosition.mLine; + mState.mCursorPosition.mColumn = prevSize; + } + else + { + auto& line = mLines[mState.mCursorPosition.mLine]; + + u.mRemoved = line[pos.mColumn - 1].mChar; + u.mRemovedStart = u.mRemovedEnd = GetActualCursorCoordinates(); + --u.mRemovedStart.mColumn; + + --mState.mCursorPosition.mColumn; + if (mState.mCursorPosition.mColumn < (int)line.size()) + line.erase(line.begin() + mState.mCursorPosition.mColumn); + } + + mTextChanged = true; + + EnsureCursorVisible(); + Colorize(mState.mCursorPosition.mLine, 1); + } + + u.mAfter = mState; + AddUndo(u); +} + +void TextEditor::SelectWordUnderCursor() +{ + auto c = GetCursorPosition(); + SetSelection(FindWordStart(c), FindWordEnd(c)); +} + +void TextEditor::SelectAll() +{ + SetSelection(Coordinates(0, 0), Coordinates((int)mLines.size(), 0)); +} + +bool TextEditor::HasSelection() const +{ + return mState.mSelectionEnd > mState.mSelectionStart; +} + +void TextEditor::Copy() +{ + if (HasSelection()) + { + ImGui::SetClipboardText(GetSelectedText().c_str()); + } + else + { + if (!mLines.empty()) + { + std::string str; + auto& line = mLines[GetActualCursorCoordinates().mLine]; + for (auto& g : line) + str.push_back(g.mChar); + ImGui::SetClipboardText(str.c_str()); + } + } +} + +void TextEditor::Cut() +{ + if (IsReadOnly()) + { + Copy(); + } + else + { + if (HasSelection()) + { + UndoRecord u; + u.mBefore = mState; + u.mRemoved = GetSelectedText(); + u.mRemovedStart = mState.mSelectionStart; + u.mRemovedEnd = mState.mSelectionEnd; + + Copy(); + DeleteSelection(); + + u.mAfter = mState; + AddUndo(u); + } + } +} + +void TextEditor::Paste() +{ + auto clipText = ImGui::GetClipboardText(); + if (clipText != nullptr && strlen(clipText) > 0) + { + UndoRecord u; + u.mBefore = mState; + + if (HasSelection()) + { + u.mRemoved = GetSelectedText(); + u.mRemovedStart = mState.mSelectionStart; + u.mRemovedEnd = mState.mSelectionEnd; + DeleteSelection(); + } + + u.mAdded = clipText; + u.mAddedStart = GetActualCursorCoordinates(); + + InsertText(clipText); + + u.mAddedEnd = GetActualCursorCoordinates(); + u.mAfter = mState; + AddUndo(u); + } +} + +bool TextEditor::CanUndo() const +{ + return mUndoIndex > 0; +} + +bool TextEditor::CanRedo() const +{ + return mUndoIndex < (int)mUndoBuffer.size(); +} + +void TextEditor::Undo(int aSteps) +{ + while (CanUndo() && aSteps-- > 0) + mUndoBuffer[--mUndoIndex].Undo(this); +} + +void TextEditor::Redo(int aSteps) +{ + while (CanRedo() && aSteps-- > 0) + mUndoBuffer[mUndoIndex++].Redo(this); +} + +const TextEditor::Palette & TextEditor::GetDarkPalette() +{ + static Palette p = { { + 0xffffffff, // None + 0xffd69c56, // Keyword + 0xff00ff00, // Number + 0xff7070e0, // String + 0xff70a0e0, // Char literal + 0xffffffff, // Punctuation + 0xff409090, // Preprocessor + 0xffaaaaaa, // Identifier + 0xff9bc64d, // Known identifier + 0xffc040a0, // Preproc identifier + 0xff206020, // Comment (single line) + 0xff406020, // Comment (multi line) + 0xff101010, // Background + 0xffe0e0e0, // Cursor + 0x80a06020, // Selection + 0x800020ff, // ErrorMarker + 0x40f08000, // Breakpoint + 0xff707000, // Line number + 0x40000000, // Current line fill + 0x40808080, // Current line fill (inactive) + 0x40a0a0a0, // Current line edge + } }; + return p; +} + +const TextEditor::Palette & TextEditor::GetLightPalette() +{ + static Palette p = { { + 0xff000000, // None + 0xffff0c06, // Keyword + 0xff008000, // Number + 0xff2020a0, // String + 0xff304070, // Char literal + 0xff000000, // Punctuation + 0xff409090, // Preprocessor + 0xff404040, // Identifier + 0xff606010, // Known identifier + 0xffc040a0, // Preproc identifier + 0xff205020, // Comment (single line) + 0xff405020, // Comment (multi line) + 0xffffffff, // Background + 0xff000000, // Cursor + 0x80600000, // Selection + 0xa00010ff, // ErrorMarker + 0x80f08000, // Breakpoint + 0xff505000, // Line number + 0x40000000, // Current line fill + 0x40808080, // Current line fill (inactive) + 0x40000000, // Current line edge + } }; + return p; +} + +const TextEditor::Palette & TextEditor::GetRetroBluePalette() +{ + static Palette p = { { + 0xff00ffff, // None + 0xffffff00, // Keyword + 0xff00ff00, // Number + 0xff808000, // String + 0xff808000, // Char literal + 0xffffffff, // Punctuation + 0xff008000, // Preprocessor + 0xff00ffff, // Identifier + 0xffffffff, // Known identifier + 0xffff00ff, // Preproc identifier + 0xff808080, // Comment (single line) + 0xff404040, // Comment (multi line) + 0xff800000, // Background + 0xff0080ff, // Cursor + 0x80ffff00, // Selection + 0xa00000ff, // ErrorMarker + 0x80ff8000, // Breakpoint + 0xff808000, // Line number + 0x40000000, // Current line fill + 0x40808080, // Current line fill (inactive) + 0x40000000, // Current line edge + } }; + return p; +} + + +std::string TextEditor::GetText() const +{ + return GetText(Coordinates(), Coordinates((int)mLines.size(), 0)); +} + +std::string TextEditor::GetSelectedText() const +{ + return GetText(mState.mSelectionStart, mState.mSelectionEnd); +} + +void TextEditor::ProcessInputs() +{ +} + +void TextEditor::Colorize(int aFromLine, int aLines) +{ + int toLine = aLines == -1 ? (int)mLines.size() : std::min((int)mLines.size(), aFromLine + aLines); + mColorRangeMin = std::min(mColorRangeMin, aFromLine); + mColorRangeMax = std::max(mColorRangeMax, toLine); + mColorRangeMin = std::max(0, mColorRangeMin); + mColorRangeMax = std::max(mColorRangeMin, mColorRangeMax); + mCheckMultilineComments = true; +} + +void TextEditor::ColorizeRange(int aFromLine, int aToLine) +{ + if (mLines.empty() || aFromLine >= aToLine) + return; + + std::string buffer; + int endLine = std::max(0, std::min((int)mLines.size(), aToLine)); + for (int i = aFromLine; i < endLine; ++i) + { + bool preproc = false; + auto& line = mLines[i]; + buffer.clear(); + for (auto g : mLines[i]) + { + buffer.push_back(g.mChar); + g.mColorIndex = PaletteIndex::Default; + } + + std::match_results results; + auto last = buffer.cend(); + for (auto first = buffer.cbegin(); first != last; ++first) + { + for (auto& p : mRegexList) + { + if (std::regex_search(first, last, results, p.first, std::regex_constants::match_continuous)) + { + auto v = *results.begin(); + auto start = v.first - buffer.begin(); + auto end = v.second - buffer.begin(); + auto id = buffer.substr(start, end - start); + auto color = p.second; + if (color == PaletteIndex::Identifier) + { + if (!mLanguageDefinition.mCaseSensitive) + std::transform(id.begin(), id.end(), id.begin(), ::toupper); + + if (!preproc) + { + if (mLanguageDefinition.mKeywords.find(id) != mLanguageDefinition.mKeywords.end()) + color = PaletteIndex::Keyword; + else if (mLanguageDefinition.mIdentifiers.find(id) != mLanguageDefinition.mIdentifiers.end()) + color = PaletteIndex::KnownIdentifier; + else if (mLanguageDefinition.mPreprocIdentifiers.find(id) != mLanguageDefinition.mPreprocIdentifiers.end()) + color = PaletteIndex::PreprocIdentifier; + } + else + { + if (mLanguageDefinition.mPreprocIdentifiers.find(id) != mLanguageDefinition.mPreprocIdentifiers.end()) + color = PaletteIndex::PreprocIdentifier; + else + color = PaletteIndex::Identifier; + } + } + else if (color == PaletteIndex::Preprocessor) + { + preproc = true; + } + for (int j = (int)start; j < (int)end; ++j) + line[j].mColorIndex = color; + first += end - start - 1; + break; + } + } + } + } +} + +void TextEditor::ColorizeInternal() +{ + if (mLines.empty()) + return; + + if (mCheckMultilineComments) + { + auto end = Coordinates((int)mLines.size(), 0); + auto commentStart = end; + auto withinString = false; + for (auto i = Coordinates(0, 0); i < end; Advance(i)) + { + auto& line = mLines[i.mLine]; + if (!line.empty()) + { + auto g = line[i.mColumn]; + auto c = g.mChar; + + bool inComment = commentStart <= i; + + if (withinString) + { + line[i.mColumn].mMultiLineComment = inComment; + + if (c == '\"') + { + if (i.mColumn + 1 < (int)line.size() && line[i.mColumn + 1].mChar == '\"') + { + Advance(i); + if (i.mColumn < (int)line.size()) + line[i.mColumn].mMultiLineComment = inComment; + } + else + withinString = false; + } + else if (c == '\\') + { + Advance(i); + if (i.mColumn < (int)line.size()) + line[i.mColumn].mMultiLineComment = inComment; + } + } + else + { + if (c == '\"') + { + withinString = true; + line[i.mColumn].mMultiLineComment = inComment; + } + else + { + auto pred = [](const char& a, const Glyph& b) { return a == b.mChar; }; + auto from = line.begin() + i.mColumn; + auto& startStr = mLanguageDefinition.mCommentStart; + if (i.mColumn + startStr.size() <= line.size() && + equals(startStr.begin(), startStr.end(), from, from + startStr.size(), pred)) + commentStart = i; + + inComment = commentStart <= i; + + line[i.mColumn].mMultiLineComment = inComment; + + auto& endStr = mLanguageDefinition.mCommentEnd; + if (i.mColumn + 1 >= (int)endStr.size() && + equals(endStr.begin(), endStr.end(), from + 1 - endStr.size(), from + 1, pred)) + commentStart = end; + } + } + } + } + mCheckMultilineComments = false; + return; + } + + if (mColorRangeMin < mColorRangeMax) + { + int to = std::min(mColorRangeMin + 10, mColorRangeMax); + ColorizeRange(mColorRangeMin, to); + mColorRangeMin = to; + + if (mColorRangeMax == mColorRangeMin) + { + mColorRangeMin = std::numeric_limits::max(); + mColorRangeMax = 0; + } + return; + } +} + +int TextEditor::TextDistanceToLineStart(const Coordinates& aFrom) const +{ + auto& line = mLines[aFrom.mLine]; + auto len = 0; + for (size_t it = 0u; it < line.size() && it < (unsigned)aFrom.mColumn; ++it) + len = line[it].mChar == '\t' ? (len / mTabSize) * mTabSize + mTabSize : len + 1; + return len; +} + +void TextEditor::EnsureCursorVisible() +{ + if (!mWithinRender) + { + mScrollToCursor = true; + return; + } + + float scrollX = ImGui::GetScrollX(); + float scrollY = ImGui::GetScrollY(); + + auto height = ImGui::GetWindowHeight(); + auto width = ImGui::GetWindowWidth(); + + auto top = 1 + (int)ceil(scrollY / mCharAdvance.y); + auto bottom = (int)ceil((scrollY + height) / mCharAdvance.y); + + auto left = (int)ceil(scrollX / mCharAdvance.x); + auto right = (int)ceil((scrollX + width) / mCharAdvance.x); + + auto pos = GetActualCursorCoordinates(); + auto len = TextDistanceToLineStart(pos); + + if (pos.mLine < top) + ImGui::SetScrollY(std::max(0.0f, (pos.mLine - 1) * mCharAdvance.y)); + if (pos.mLine > bottom - 4) + ImGui::SetScrollY(std::max(0.0f, (pos.mLine + 4) * mCharAdvance.y - height)); + if (len + cTextStart < left + 4) + ImGui::SetScrollX(std::max(0.0f, (len + cTextStart - 4) * mCharAdvance.x)); + if (len + cTextStart > right - 4) + ImGui::SetScrollX(std::max(0.0f, (len + cTextStart + 4) * mCharAdvance.x - width)); +} + +int TextEditor::GetPageSize() const +{ + auto height = ImGui::GetWindowHeight() - 20.0f; + return (int)floor(height / mCharAdvance.y); +} + +TextEditor::UndoRecord::UndoRecord( + const std::string& aAdded, + const TextEditor::Coordinates aAddedStart, + const TextEditor::Coordinates aAddedEnd, + const std::string& aRemoved, + const TextEditor::Coordinates aRemovedStart, + const TextEditor::Coordinates aRemovedEnd, + TextEditor::EditorState& aBefore, + TextEditor::EditorState& aAfter) + : mAdded(aAdded) + , mAddedStart(aAddedStart) + , mAddedEnd(aAddedEnd) + , mRemoved(aRemoved) + , mRemovedStart(aRemovedStart) + , mRemovedEnd(aRemovedEnd) + , mBefore(aBefore) + , mAfter(aAfter) +{ + assert(mAddedStart <= mAddedEnd); + assert(mRemovedStart <= mRemovedEnd); +} + +void TextEditor::UndoRecord::Undo(TextEditor * aEditor) +{ + if (!mAdded.empty()) + { + aEditor->DeleteRange(mAddedStart, mAddedEnd); + aEditor->Colorize(mAddedStart.mLine - 1, mAddedEnd.mLine - mAddedStart.mLine + 2); + } + + if (!mRemoved.empty()) + { + auto start = mRemovedStart; + aEditor->InsertTextAt(start, mRemoved.c_str()); + aEditor->Colorize(mRemovedStart.mLine - 1, mRemovedEnd.mLine - mRemovedStart.mLine + 2); + } + + aEditor->mState = mBefore; + aEditor->EnsureCursorVisible(); + +} + +void TextEditor::UndoRecord::Redo(TextEditor * aEditor) +{ + if (!mRemoved.empty()) + { + aEditor->DeleteRange(mRemovedStart, mRemovedEnd); + aEditor->Colorize(mRemovedStart.mLine - 1, mRemovedEnd.mLine - mRemovedStart.mLine + 1); + } + + if (!mAdded.empty()) + { + auto start = mAddedStart; + aEditor->InsertTextAt(start, mAdded.c_str()); + aEditor->Colorize(mAddedStart.mLine - 1, mAddedEnd.mLine - mAddedStart.mLine + 1); + } + + aEditor->mState = mAfter; + aEditor->EnsureCursorVisible(); +} + +TextEditor::LanguageDefinition TextEditor::LanguageDefinition::CPlusPlus() +{ + static bool inited = false; + static LanguageDefinition langDef; + if (!inited) + { + static const char* const cppKeywords[] = { + "alignas", "alignof", "and", "and_eq", "asm", "atomic_cancel", "atomic_commit", "atomic_noexcept", "auto", "bitand", "bitor", "bool", "break", "case", "catch", "char", "char16_t", "char32_t", "class", + "compl", "concept", "const", "constexpr", "const_cast", "continue", "decltype", "default", "delete", "do", "double", "dynamic_cast", "else", "enum", "explicit", "export", "extern", "false", "float", + "for", "friend", "goto", "if", "import", "inline", "int", "long", "module", "mutable", "namespace", "new", "noexcept", "not", "not_eq", "nullptr", "operator", "or", "or_eq", "private", "protected", "public", + "register", "reinterpret_cast", "requires", "return", "short", "signed", "sizeof", "static", "static_assert", "static_cast", "struct", "switch", "synchronized", "template", "this", "thread_local", + "throw", "true", "try", "typedef", "typeid", "typename", "union", "unsigned", "using", "virtual", "void", "volatile", "wchar_t", "while", "xor", "xor_eq" + }; + for (auto& k : cppKeywords) + langDef.mKeywords.insert(k); + + static const char* const identifiers[] = { + "abort", "abs", "acos", "asin", "atan", "atexit", "atof", "atoi", "atol", "ceil", "clock", "cosh", "ctime", "div", "exit", "fabs", "floor", "fmod", "getchar", "getenv", "isalnum", "isalpha", "isdigit", "isgraph", + "ispunct", "isspace", "isupper", "kbhit", "log10", "log2", "log", "memcmp", "modf", "pow", "printf", "sprintf", "snprintf", "putchar", "putenv", "puts", "rand", "remove", "rename", "sinh", "sqrt", "srand", "strcat", "strcmp", "strerror", "time", "tolower", "toupper", + "std", "string", "vector", "map", "unordered_map", "set", "unordered_set", "min", "max" + }; + for (auto& k : identifiers) + { + Identifier id; + id.mDeclaration = "Built-in function"; + langDef.mIdentifiers.insert(std::make_pair(std::string(k), id)); + } + + langDef.mTokenRegexStrings.push_back(std::make_pair("//.*", PaletteIndex::Comment)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[ \\t]*#[ \\t]*[a-zA-Z_]+", PaletteIndex::Preprocessor)); + langDef.mTokenRegexStrings.push_back(std::make_pair("L?\\\"(\\\\.|[^\\\"])*\\\"", PaletteIndex::String)); + langDef.mTokenRegexStrings.push_back(std::make_pair("\\'\\\\?[^\\']\\'", PaletteIndex::CharLiteral)); + langDef.mTokenRegexStrings.push_back(std::make_pair("0[xX][0-9a-fA-F]+[uU]?[lL]?[lL]?", PaletteIndex::Number)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[+-]?([0-9]+([.][0-9]*)?|[.][0-9]+)([eE][+-]?[0-9]+)?[fF]?", PaletteIndex::Number)); + langDef.mTokenRegexStrings.push_back(std::make_pair("0[0-7]+[Uu]?[lL]?[lL]?", PaletteIndex::Number)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[+-]?[0-9]+[Uu]?[lL]?[lL]?", PaletteIndex::Number)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[a-zA-Z_][a-zA-Z0-9_]*", PaletteIndex::Identifier)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[\\[\\]\\{\\}\\!\\%\\^\\&\\*\\(\\)\\-\\+\\=\\~\\|\\<\\>\\?\\/\\;\\,\\.]", PaletteIndex::Punctuation)); + + langDef.mCommentStart = "/*"; + langDef.mCommentEnd = "*/"; + + langDef.mCaseSensitive = true; + + langDef.mName = "C++"; + + inited = true; + } + return langDef; +} + +TextEditor::LanguageDefinition TextEditor::LanguageDefinition::HLSL() +{ + static bool inited = false; + static LanguageDefinition langDef; + if (!inited) + { + static const char* const keywords[] = { + "AppendStructuredBuffer", "asm", "asm_fragment", "BlendState", "bool", "break", "Buffer", "ByteAddressBuffer", "case", "cbuffer", "centroid", "class", "column_major", "compile", "compile_fragment", + "CompileShader", "const", "continue", "ComputeShader", "ConsumeStructuredBuffer", "default", "DepthStencilState", "DepthStencilView", "discard", "do", "double", "DomainShader", "dword", "else", + "export", "extern", "false", "float", "for", "fxgroup", "GeometryShader", "groupshared", "half", "Hullshader", "if", "in", "inline", "inout", "InputPatch", "int", "interface", "line", "lineadj", + "linear", "LineStream", "matrix", "min16float", "min10float", "min16int", "min12int", "min16uint", "namespace", "nointerpolation", "noperspective", "NULL", "out", "OutputPatch", "packoffset", + "pass", "pixelfragment", "PixelShader", "point", "PointStream", "precise", "RasterizerState", "RenderTargetView", "return", "register", "row_major", "RWBuffer", "RWByteAddressBuffer", "RWStructuredBuffer", + "RWTexture1D", "RWTexture1DArray", "RWTexture2D", "RWTexture2DArray", "RWTexture3D", "sample", "sampler", "SamplerState", "SamplerComparisonState", "shared", "snorm", "stateblock", "stateblock_state", + "static", "string", "struct", "switch", "StructuredBuffer", "tbuffer", "technique", "technique10", "technique11", "texture", "Texture1D", "Texture1DArray", "Texture2D", "Texture2DArray", "Texture2DMS", + "Texture2DMSArray", "Texture3D", "TextureCube", "TextureCubeArray", "true", "typedef", "triangle", "triangleadj", "TriangleStream", "uint", "uniform", "unorm", "unsigned", "vector", "vertexfragment", + "VertexShader", "void", "volatile", "while", + "bool1","bool2","bool3","bool4","double1","double2","double3","double4", "float1", "float2", "float3", "float4", "int1", "int2", "int3", "int4", "in", "out", "inout", + "uint1", "uint2", "uint3", "uint4", "dword1", "dword2", "dword3", "dword4", "half1", "half2", "half3", "half4", + "float1x1","float2x1","float3x1","float4x1","float1x2","float2x2","float3x2","float4x2", + "float1x3","float2x3","float3x3","float4x3","float1x4","float2x4","float3x4","float4x4", + "half1x1","half2x1","half3x1","half4x1","half1x2","half2x2","half3x2","half4x2", + "half1x3","half2x3","half3x3","half4x3","half1x4","half2x4","half3x4","half4x4", + }; + for (auto& k : keywords) + langDef.mKeywords.insert(k); + + static const char* const identifiers[] = { + "abort", "abs", "acos", "all", "AllMemoryBarrier", "AllMemoryBarrierWithGroupSync", "any", "asdouble", "asfloat", "asin", "asint", "asint", "asuint", + "asuint", "atan", "atan2", "ceil", "CheckAccessFullyMapped", "clamp", "clip", "cos", "cosh", "countbits", "cross", "D3DCOLORtoUBYTE4", "ddx", + "ddx_coarse", "ddx_fine", "ddy", "ddy_coarse", "ddy_fine", "degrees", "determinant", "DeviceMemoryBarrier", "DeviceMemoryBarrierWithGroupSync", + "distance", "dot", "dst", "errorf", "EvaluateAttributeAtCentroid", "EvaluateAttributeAtSample", "EvaluateAttributeSnapped", "exp", "exp2", + "f16tof32", "f32tof16", "faceforward", "firstbithigh", "firstbitlow", "floor", "fma", "fmod", "frac", "frexp", "fwidth", "GetRenderTargetSampleCount", + "GetRenderTargetSamplePosition", "GroupMemoryBarrier", "GroupMemoryBarrierWithGroupSync", "InterlockedAdd", "InterlockedAnd", "InterlockedCompareExchange", + "InterlockedCompareStore", "InterlockedExchange", "InterlockedMax", "InterlockedMin", "InterlockedOr", "InterlockedXor", "isfinite", "isinf", "isnan", + "ldexp", "length", "lerp", "lit", "log", "log10", "log2", "mad", "max", "min", "modf", "msad4", "mul", "noise", "normalize", "pow", "printf", + "Process2DQuadTessFactorsAvg", "Process2DQuadTessFactorsMax", "Process2DQuadTessFactorsMin", "ProcessIsolineTessFactors", "ProcessQuadTessFactorsAvg", + "ProcessQuadTessFactorsMax", "ProcessQuadTessFactorsMin", "ProcessTriTessFactorsAvg", "ProcessTriTessFactorsMax", "ProcessTriTessFactorsMin", + "radians", "rcp", "reflect", "refract", "reversebits", "round", "rsqrt", "saturate", "sign", "sin", "sincos", "sinh", "smoothstep", "sqrt", "step", + "tan", "tanh", "tex1D", "tex1D", "tex1Dbias", "tex1Dgrad", "tex1Dlod", "tex1Dproj", "tex2D", "tex2D", "tex2Dbias", "tex2Dgrad", "tex2Dlod", "tex2Dproj", + "tex3D", "tex3D", "tex3Dbias", "tex3Dgrad", "tex3Dlod", "tex3Dproj", "texCUBE", "texCUBE", "texCUBEbias", "texCUBEgrad", "texCUBElod", "texCUBEproj", "transpose", "trunc" + }; + for (auto& k : identifiers) + { + Identifier id; + id.mDeclaration = "Built-in function"; + langDef.mIdentifiers.insert(std::make_pair(std::string(k), id)); + } + + langDef.mTokenRegexStrings.push_back(std::make_pair("//.*", PaletteIndex::Comment)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[ \\t]*#[ \\t]*[a-zA-Z_]+", PaletteIndex::Preprocessor)); + langDef.mTokenRegexStrings.push_back(std::make_pair("L?\\\"(\\\\.|[^\\\"])*\\\"", PaletteIndex::String)); + langDef.mTokenRegexStrings.push_back(std::make_pair("\\'\\\\?[^\\']\\'", PaletteIndex::CharLiteral)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[+-]?([0-9]+([.][0-9]*)?|[.][0-9]+)([eE][+-]?[0-9]+)?[fF]?", PaletteIndex::Number)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[+-]?[0-9]+[Uu]?[lL]?[lL]?", PaletteIndex::Number)); + langDef.mTokenRegexStrings.push_back(std::make_pair("0[0-7]+[Uu]?[lL]?[lL]?", PaletteIndex::Number)); + langDef.mTokenRegexStrings.push_back(std::make_pair("0[xX][0-9a-fA-F]+[uU]?[lL]?[lL]?", PaletteIndex::Number)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[a-zA-Z_][a-zA-Z0-9_]*", PaletteIndex::Identifier)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[\\[\\]\\{\\}\\!\\%\\^\\&\\*\\(\\)\\-\\+\\=\\~\\|\\<\\>\\?\\/\\;\\,\\.]", PaletteIndex::Punctuation)); + + langDef.mCommentStart = "/*"; + langDef.mCommentEnd = "*/"; + + langDef.mCaseSensitive = true; + + langDef.mName = "HLSL"; + + inited = true; + } + return langDef; +} + +TextEditor::LanguageDefinition TextEditor::LanguageDefinition::GLSL() +{ + static bool inited = false; + static LanguageDefinition langDef; + if (!inited) + { + static const char* const keywords[] = { + "auto", "break", "case", "char", "const", "continue", "default", "do", "double", "else", "enum", "extern", "float", "for", "goto", "if", "inline", "int", "long", "register", "restrict", "return", "short", + "signed", "sizeof", "static", "struct", "switch", "typedef", "union", "unsigned", "void", "volatile", "while", "_Alignas", "_Alignof", "_Atomic", "_Bool", "_Complex", "_Generic", "_Imaginary", + "_Noreturn", "_Static_assert", "_Thread_local" + }; + for (auto& k : keywords) + langDef.mKeywords.insert(k); + + static const char* const identifiers[] = { + "abort", "abs", "acos", "asin", "atan", "atexit", "atof", "atoi", "atol", "ceil", "clock", "cosh", "ctime", "div", "exit", "fabs", "floor", "fmod", "getchar", "getenv", "isalnum", "isalpha", "isdigit", "isgraph", + "ispunct", "isspace", "isupper", "kbhit", "log10", "log2", "log", "memcmp", "modf", "pow", "putchar", "putenv", "puts", "rand", "remove", "rename", "sinh", "sqrt", "srand", "strcat", "strcmp", "strerror", "time", "tolower", "toupper" + }; + for (auto& k : identifiers) + { + Identifier id; + id.mDeclaration = "Built-in function"; + langDef.mIdentifiers.insert(std::make_pair(std::string(k), id)); + } + + langDef.mTokenRegexStrings.push_back(std::make_pair("//.*", PaletteIndex::Comment)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[ \\t]*#[ \\t]*[a-zA-Z_]+", PaletteIndex::Preprocessor)); + langDef.mTokenRegexStrings.push_back(std::make_pair("L?\\\"(\\\\.|[^\\\"])*\\\"", PaletteIndex::String)); + langDef.mTokenRegexStrings.push_back(std::make_pair("\\'\\\\?[^\\']\\'", PaletteIndex::CharLiteral)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[+-]?([0-9]+([.][0-9]*)?|[.][0-9]+)([eE][+-]?[0-9]+)?[fF]?", PaletteIndex::Number)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[+-]?[0-9]+[Uu]?[lL]?[lL]?", PaletteIndex::Number)); + langDef.mTokenRegexStrings.push_back(std::make_pair("0[0-7]+[Uu]?[lL]?[lL]?", PaletteIndex::Number)); + langDef.mTokenRegexStrings.push_back(std::make_pair("0[xX][0-9a-fA-F]+[uU]?[lL]?[lL]?", PaletteIndex::Number)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[a-zA-Z_][a-zA-Z0-9_]*", PaletteIndex::Identifier)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[\\[\\]\\{\\}\\!\\%\\^\\&\\*\\(\\)\\-\\+\\=\\~\\|\\<\\>\\?\\/\\;\\,\\.]", PaletteIndex::Punctuation)); + + langDef.mCommentStart = "/*"; + langDef.mCommentEnd = "*/"; + + langDef.mCaseSensitive = true; + + langDef.mName = "GLSL"; + + inited = true; + } + return langDef; +} + +TextEditor::LanguageDefinition TextEditor::LanguageDefinition::C() +{ + static bool inited = false; + static LanguageDefinition langDef; + if (!inited) + { + static const char* const keywords[] = { + "auto", "break", "case", "char", "const", "continue", "default", "do", "double", "else", "enum", "extern", "float", "for", "goto", "if", "inline", "int", "long", "register", "restrict", "return", "short", + "signed", "sizeof", "static", "struct", "switch", "typedef", "union", "unsigned", "void", "volatile", "while", "_Alignas", "_Alignof", "_Atomic", "_Bool", "_Complex", "_Generic", "_Imaginary", + "_Noreturn", "_Static_assert", "_Thread_local" + }; + for (auto& k : keywords) + langDef.mKeywords.insert(k); + + static const char* const identifiers[] = { + "abort", "abs", "acos", "asin", "atan", "atexit", "atof", "atoi", "atol", "ceil", "clock", "cosh", "ctime", "div", "exit", "fabs", "floor", "fmod", "getchar", "getenv", "isalnum", "isalpha", "isdigit", "isgraph", + "ispunct", "isspace", "isupper", "kbhit", "log10", "log2", "log", "memcmp", "modf", "pow", "putchar", "putenv", "puts", "rand", "remove", "rename", "sinh", "sqrt", "srand", "strcat", "strcmp", "strerror", "time", "tolower", "toupper" + }; + for (auto& k : identifiers) + { + Identifier id; + id.mDeclaration = "Built-in function"; + langDef.mIdentifiers.insert(std::make_pair(std::string(k), id)); + } + + langDef.mTokenRegexStrings.push_back(std::make_pair("//.*", PaletteIndex::Comment)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[ \\t]*#[ \\t]*[a-zA-Z_]+", PaletteIndex::Preprocessor)); + langDef.mTokenRegexStrings.push_back(std::make_pair("L?\\\"(\\\\.|[^\\\"])*\\\"", PaletteIndex::String)); + langDef.mTokenRegexStrings.push_back(std::make_pair("\\'\\\\?[^\\']\\'", PaletteIndex::CharLiteral)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[+-]?([0-9]+([.][0-9]*)?|[.][0-9]+)([eE][+-]?[0-9]+)?[fF]?", PaletteIndex::Number)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[+-]?[0-9]+[Uu]?[lL]?[lL]?", PaletteIndex::Number)); + langDef.mTokenRegexStrings.push_back(std::make_pair("0[0-7]+[Uu]?[lL]?[lL]?", PaletteIndex::Number)); + langDef.mTokenRegexStrings.push_back(std::make_pair("0[xX][0-9a-fA-F]+[uU]?[lL]?[lL]?", PaletteIndex::Number)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[a-zA-Z_][a-zA-Z0-9_]*", PaletteIndex::Identifier)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[\\[\\]\\{\\}\\!\\%\\^\\&\\*\\(\\)\\-\\+\\=\\~\\|\\<\\>\\?\\/\\;\\,\\.]", PaletteIndex::Punctuation)); + + langDef.mCommentStart = "/*"; + langDef.mCommentEnd = "*/"; + + langDef.mCaseSensitive = true; + + langDef.mName = "C"; + + inited = true; + } + return langDef; +} + +TextEditor::LanguageDefinition TextEditor::LanguageDefinition::SQL() +{ + static bool inited = false; + static LanguageDefinition langDef; + if (!inited) + { + static const char* const keywords[] = { + "ADD", "EXCEPT", "PERCENT", "ALL", "EXEC", "PLAN", "ALTER", "EXECUTE", "PRECISION", "AND", "EXISTS", "PRIMARY", "ANY", "EXIT", "PRINT", "AS", "FETCH", "PROC", "ASC", "FILE", "PROCEDURE", + "AUTHORIZATION", "FILLFACTOR", "PUBLIC", "BACKUP", "FOR", "RAISERROR", "BEGIN", "FOREIGN", "READ", "BETWEEN", "FREETEXT", "READTEXT", "BREAK", "FREETEXTTABLE", "RECONFIGURE", + "BROWSE", "FROM", "REFERENCES", "BULK", "FULL", "REPLICATION", "BY", "FUNCTION", "RESTORE", "CASCADE", "GOTO", "RESTRICT", "CASE", "GRANT", "RETURN", "CHECK", "GROUP", "REVOKE", + "CHECKPOINT", "HAVING", "RIGHT", "CLOSE", "HOLDLOCK", "ROLLBACK", "CLUSTERED", "IDENTITY", "ROWCOUNT", "COALESCE", "IDENTITY_INSERT", "ROWGUIDCOL", "COLLATE", "IDENTITYCOL", "RULE", + "COLUMN", "IF", "SAVE", "COMMIT", "IN", "SCHEMA", "COMPUTE", "INDEX", "SELECT", "CONSTRAINT", "INNER", "SESSION_USER", "CONTAINS", "INSERT", "SET", "CONTAINSTABLE", "INTERSECT", "SETUSER", + "CONTINUE", "INTO", "SHUTDOWN", "CONVERT", "IS", "SOME", "CREATE", "JOIN", "STATISTICS", "CROSS", "KEY", "SYSTEM_USER", "CURRENT", "KILL", "TABLE", "CURRENT_DATE", "LEFT", "TEXTSIZE", + "CURRENT_TIME", "LIKE", "THEN", "CURRENT_TIMESTAMP", "LINENO", "TO", "CURRENT_USER", "LOAD", "TOP", "CURSOR", "NATIONAL", "TRAN", "DATABASE", "NOCHECK", "TRANSACTION", + "DBCC", "NONCLUSTERED", "TRIGGER", "DEALLOCATE", "NOT", "TRUNCATE", "DECLARE", "NULL", "TSEQUAL", "DEFAULT", "NULLIF", "UNION", "DELETE", "OF", "UNIQUE", "DENY", "OFF", "UPDATE", + "DESC", "OFFSETS", "UPDATETEXT", "DISK", "ON", "USE", "DISTINCT", "OPEN", "USER", "DISTRIBUTED", "OPENDATASOURCE", "VALUES", "DOUBLE", "OPENQUERY", "VARYING","DROP", "OPENROWSET", "VIEW", + "DUMMY", "OPENXML", "WAITFOR", "DUMP", "OPTION", "WHEN", "ELSE", "OR", "WHERE", "END", "ORDER", "WHILE", "ERRLVL", "OUTER", "WITH", "ESCAPE", "OVER", "WRITETEXT" + }; + + for (auto& k : keywords) + langDef.mKeywords.insert(k); + + static const char* const identifiers[] = { + "ABS", "ACOS", "ADD_MONTHS", "ASCII", "ASCIISTR", "ASIN", "ATAN", "ATAN2", "AVG", "BFILENAME", "BIN_TO_NUM", "BITAND", "CARDINALITY", "CASE", "CAST", "CEIL", + "CHARTOROWID", "CHR", "COALESCE", "COMPOSE", "CONCAT", "CONVERT", "CORR", "COS", "COSH", "COUNT", "COVAR_POP", "COVAR_SAMP", "CUME_DIST", "CURRENT_DATE", + "CURRENT_TIMESTAMP", "DBTIMEZONE", "DECODE", "DECOMPOSE", "DENSE_RANK", "DUMP", "EMPTY_BLOB", "EMPTY_CLOB", "EXP", "EXTRACT", "FIRST_VALUE", "FLOOR", "FROM_TZ", "GREATEST", + "GROUP_ID", "HEXTORAW", "INITCAP", "INSTR", "INSTR2", "INSTR4", "INSTRB", "INSTRC", "LAG", "LAST_DAY", "LAST_VALUE", "LEAD", "LEAST", "LENGTH", "LENGTH2", "LENGTH4", + "LENGTHB", "LENGTHC", "LISTAGG", "LN", "LNNVL", "LOCALTIMESTAMP", "LOG", "LOWER", "LPAD", "LTRIM", "MAX", "MEDIAN", "MIN", "MOD", "MONTHS_BETWEEN", "NANVL", "NCHR", + "NEW_TIME", "NEXT_DAY", "NTH_VALUE", "NULLIF", "NUMTODSINTERVAL", "NUMTOYMINTERVAL", "NVL", "NVL2", "POWER", "RANK", "RAWTOHEX", "REGEXP_COUNT", "REGEXP_INSTR", + "REGEXP_REPLACE", "REGEXP_SUBSTR", "REMAINDER", "REPLACE", "ROUND", "ROWNUM", "RPAD", "RTRIM", "SESSIONTIMEZONE", "SIGN", "SIN", "SINH", + "SOUNDEX", "SQRT", "STDDEV", "SUBSTR", "SUM", "SYS_CONTEXT", "SYSDATE", "SYSTIMESTAMP", "TAN", "TANH", "TO_CHAR", "TO_CLOB", "TO_DATE", "TO_DSINTERVAL", "TO_LOB", + "TO_MULTI_BYTE", "TO_NCLOB", "TO_NUMBER", "TO_SINGLE_BYTE", "TO_TIMESTAMP", "TO_TIMESTAMP_TZ", "TO_YMINTERVAL", "TRANSLATE", "TRIM", "TRUNC", "TZ_OFFSET", "UID", "UPPER", + "USER", "USERENV", "VAR_POP", "VAR_SAMP", "VARIANCE", "VSIZE " + }; + for (auto& k : identifiers) + { + Identifier id; + id.mDeclaration = "Built-in function"; + langDef.mIdentifiers.insert(std::make_pair(std::string(k), id)); + } + + langDef.mTokenRegexStrings.push_back(std::make_pair("\\-\\-.*", PaletteIndex::Comment)); + langDef.mTokenRegexStrings.push_back(std::make_pair("L?\\\"(\\\\.|[^\\\"])*\\\"", PaletteIndex::String)); + langDef.mTokenRegexStrings.push_back(std::make_pair("\\\'[^\\\']*\\\'", PaletteIndex::String)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[+-]?([0-9]+([.][0-9]*)?|[.][0-9]+)([eE][+-]?[0-9]+)?[fF]?", PaletteIndex::Number)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[+-]?[0-9]+[Uu]?[lL]?[lL]?", PaletteIndex::Number)); + langDef.mTokenRegexStrings.push_back(std::make_pair("0[0-7]+[Uu]?[lL]?[lL]?", PaletteIndex::Number)); + langDef.mTokenRegexStrings.push_back(std::make_pair("0[xX][0-9a-fA-F]+[uU]?[lL]?[lL]?", PaletteIndex::Number)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[a-zA-Z_][a-zA-Z0-9_]*", PaletteIndex::Identifier)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[\\[\\]\\{\\}\\!\\%\\^\\&\\*\\(\\)\\-\\+\\=\\~\\|\\<\\>\\?\\/\\;\\,\\.]", PaletteIndex::Punctuation)); + + langDef.mCommentStart = "/*"; + langDef.mCommentEnd = "*/"; + + langDef.mCaseSensitive = false; + + langDef.mName = "SQL"; + + inited = true; + } + return langDef; +} + +TextEditor::LanguageDefinition TextEditor::LanguageDefinition::AngelScript() +{ + static bool inited = false; + static LanguageDefinition langDef; + if (!inited) + { + static const char* const keywords[] = { + "and", "abstract", "auto", "bool", "break", "case", "cast", "class", "const", "continue", "default", "do", "double", "else", "enum", "false", "final", "float", "for", + "from", "funcdef", "function", "get", "if", "import", "in", "inout", "int", "interface", "int8", "int16", "int32", "int64", "is", "mixin", "namespace", "not", + "null", "or", "out", "override", "private", "protected", "return", "set", "shared", "super", "switch", "this ", "true", "typedef", "uint", "uint8", "uint16", "uint32", + "uint64", "void", "while", "xor" + }; + + for (auto& k : keywords) + langDef.mKeywords.insert(k); + + static const char* const identifiers[] = { + "cos", "sin", "tab", "acos", "asin", "atan", "atan2", "cosh", "sinh", "tanh", "log", "log10", "pow", "sqrt", "abs", "ceil", "floor", "fraction", "closeTo", "fpFromIEEE", "fpToIEEE", + "complex", "opEquals", "opAddAssign", "opSubAssign", "opMulAssign", "opDivAssign", "opAdd", "opSub", "opMul", "opDiv" + }; + for (auto& k : identifiers) + { + Identifier id; + id.mDeclaration = "Built-in function"; + langDef.mIdentifiers.insert(std::make_pair(std::string(k), id)); + } + + langDef.mTokenRegexStrings.push_back(std::make_pair("//.*", PaletteIndex::Comment)); + langDef.mTokenRegexStrings.push_back(std::make_pair("L?\\\"(\\\\.|[^\\\"])*\\\"", PaletteIndex::String)); + langDef.mTokenRegexStrings.push_back(std::make_pair("\\'\\\\?[^\\']\\'", PaletteIndex::String)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[+-]?([0-9]+([.][0-9]*)?|[.][0-9]+)([eE][+-]?[0-9]+)?[fF]?", PaletteIndex::Number)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[+-]?[0-9]+[Uu]?[lL]?[lL]?", PaletteIndex::Number)); + langDef.mTokenRegexStrings.push_back(std::make_pair("0[0-7]+[Uu]?[lL]?[lL]?", PaletteIndex::Number)); + langDef.mTokenRegexStrings.push_back(std::make_pair("0[xX][0-9a-fA-F]+[uU]?[lL]?[lL]?", PaletteIndex::Number)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[a-zA-Z_][a-zA-Z0-9_]*", PaletteIndex::Identifier)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[\\[\\]\\{\\}\\!\\%\\^\\&\\*\\(\\)\\-\\+\\=\\~\\|\\<\\>\\?\\/\\;\\,\\.]", PaletteIndex::Punctuation)); + + langDef.mCommentStart = "/*"; + langDef.mCommentEnd = "*/"; + + langDef.mCaseSensitive = true; + + langDef.mName = "AngelScript"; + + inited = true; + } + return langDef; +} + +TextEditor::LanguageDefinition TextEditor::LanguageDefinition::Lua() +{ + static bool inited = false; + static LanguageDefinition langDef; + if (!inited) + { + static const char* const keywords[] = { + "and", "break", "do", "", "else", "elseif", "end", "false", "for", "function", "if", "in", "", "local", "nil", "not", "or", "repeat", "return", "then", "true", "until", "while" + }; + + for (auto& k : keywords) + langDef.mKeywords.insert(k); + + static const char* const identifiers[] = { + "assert", "collectgarbage", "dofile", "error", "getmetatable", "ipairs", "loadfile", "load", "loadstring", "next", "pairs", "pcall", "print", "rawequal", "rawlen", "rawget", "rawset", + "select", "setmetatable", "tonumber", "tostring", "type", "xpcall", "_G", "_VERSION","arshift", "band", "bnot", "bor", "bxor", "btest", "extract", "lrotate", "lshift", "replace", + "rrotate", "rshift", "create", "resume", "running", "status", "wrap", "yield", "isyieldable", "debug","getuservalue", "gethook", "getinfo", "getlocal", "getregistry", "getmetatable", + "getupvalue", "upvaluejoin", "upvalueid", "setuservalue", "sethook", "setlocal", "setmetatable", "setupvalue", "traceback", "close", "flush", "input", "lines", "open", "output", "popen", + "read", "tmpfile", "type", "write", "close", "flush", "lines", "read", "seek", "setvbuf", "write", "__gc", "__tostring", "abs", "acos", "asin", "atan", "ceil", "cos", "deg", "exp", "tointeger", + "floor", "fmod", "ult", "log", "max", "min", "modf", "rad", "random", "randomseed", "sin", "sqrt", "string", "tan", "type", "atan2", "cosh", "sinh", "tanh", + "pow", "frexp", "ldexp", "log10", "pi", "huge", "maxinteger", "mininteger", "loadlib", "searchpath", "seeall", "preload", "cpath", "path", "searchers", "loaded", "module", "require", "clock", + "date", "difftime", "execute", "exit", "getenv", "remove", "rename", "setlocale", "time", "tmpname", "byte", "char", "dump", "find", "format", "gmatch", "gsub", "len", "lower", "match", "rep", + "reverse", "sub", "upper", "pack", "packsize", "unpack", "concat", "maxn", "insert", "pack", "unpack", "remove", "move", "sort", "offset", "codepoint", "char", "len", "codes", "charpattern", + "coroutine", "table", "io", "os", "string", "utf8", "bit32", "math", "debug", "package" + }; + for (auto& k : identifiers) + { + Identifier id; + id.mDeclaration = "Built-in function"; + langDef.mIdentifiers.insert(std::make_pair(std::string(k), id)); + } + + langDef.mTokenRegexStrings.push_back(std::make_pair("\\-\\-.*", PaletteIndex::Comment)); + langDef.mTokenRegexStrings.push_back(std::make_pair("L?\\\"(\\\\.|[^\\\"])*\\\"", PaletteIndex::String)); + langDef.mTokenRegexStrings.push_back(std::make_pair("\\\'[^\\\']*\\\'", PaletteIndex::String)); + langDef.mTokenRegexStrings.push_back(std::make_pair("0[xX][0-9a-fA-F]+[uU]?[lL]?[lL]?", PaletteIndex::Number)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[+-]?([0-9]+([.][0-9]*)?|[.][0-9]+)([eE][+-]?[0-9]+)?[fF]?", PaletteIndex::Number)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[+-]?[0-9]+[Uu]?[lL]?[lL]?", PaletteIndex::Number)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[a-zA-Z_][a-zA-Z0-9_]*", PaletteIndex::Identifier)); + langDef.mTokenRegexStrings.push_back(std::make_pair("[\\[\\]\\{\\}\\!\\%\\^\\&\\*\\(\\)\\-\\+\\=\\~\\|\\<\\>\\?\\/\\;\\,\\.]", PaletteIndex::Punctuation)); + + langDef.mCommentStart = "\\-\\-\\[\\["; + langDef.mCommentEnd = "\\]\\]"; + + langDef.mCaseSensitive = true; + + langDef.mName = "Lua"; + + inited = true; + } + return langDef; +} diff --git a/imguicolortextedit/TextEditor.h b/imguicolortextedit/TextEditor.h new file mode 100644 index 00000000..f8ba7a16 --- /dev/null +++ b/imguicolortextedit/TextEditor.h @@ -0,0 +1,323 @@ +#pragma once + +#include +#include +#include +#include +#include +#include +#include +#include +#include "imgui.h" + +class TextEditor +{ +public: + enum class PaletteIndex + { + Default, + Keyword, + Number, + String, + CharLiteral, + Punctuation, + Preprocessor, + Identifier, + KnownIdentifier, + PreprocIdentifier, + Comment, + MultiLineComment, + Background, + Cursor, + Selection, + ErrorMarker, + Breakpoint, + LineNumber, + CurrentLineFill, + CurrentLineFillInactive, + CurrentLineEdge, + Max + }; + + enum class SelectionMode + { + Normal, + Word, + Line + }; + + struct Breakpoint + { + int mLine; + bool mEnabled; + std::string mCondition; + + Breakpoint() + : mLine(-1) + , mEnabled(false) + {} + }; + + struct Coordinates + { + int mLine, mColumn; + Coordinates() : mLine(0), mColumn(0) {} + Coordinates(int aLine, int aColumn) : mLine(aLine), mColumn(aColumn) + { + assert(aLine >= 0); + assert(aColumn >= 0); + } + static Coordinates Invalid() { static Coordinates invalid(-1, -1); return invalid; } + + bool operator ==(const Coordinates& o) const + { + return + mLine == o.mLine && + mColumn == o.mColumn; + } + + bool operator !=(const Coordinates& o) const + { + return + mLine != o.mLine || + mColumn != o.mColumn; + } + + bool operator <(const Coordinates& o) const + { + if (mLine != o.mLine) + return mLine < o.mLine; + return mColumn < o.mColumn; + } + + bool operator >(const Coordinates& o) const + { + if (mLine != o.mLine) + return mLine > o.mLine; + return mColumn > o.mColumn; + } + + bool operator <=(const Coordinates& o) const + { + if (mLine != o.mLine) + return mLine < o.mLine; + return mColumn <= o.mColumn; + } + + bool operator >=(const Coordinates& o) const + { + if (mLine != o.mLine) + return mLine > o.mLine; + return mColumn >= o.mColumn; + } + }; + + struct Identifier + { + Coordinates mLocation; + std::string mDeclaration; + }; + + typedef std::string String; + typedef std::unordered_map Identifiers; + typedef std::unordered_set Keywords; + typedef std::map ErrorMarkers; + typedef std::unordered_set Breakpoints; + typedef std::array Palette; + typedef char Char; + + struct Glyph + { + Char mChar; + PaletteIndex mColorIndex : 7; + bool mMultiLineComment : 1; + + Glyph(Char aChar, PaletteIndex aColorIndex) : mChar(aChar), mColorIndex(aColorIndex), mMultiLineComment(false) {} + }; + + typedef std::vector Line; + typedef std::vector Lines; + + struct LanguageDefinition + { + typedef std::pair TokenRegexString; + typedef std::vector TokenRegexStrings; + + std::string mName; + Keywords mKeywords; + Identifiers mIdentifiers; + Identifiers mPreprocIdentifiers; + std::string mCommentStart, mCommentEnd; + + TokenRegexStrings mTokenRegexStrings; + + bool mCaseSensitive; + + static LanguageDefinition CPlusPlus(); + static LanguageDefinition HLSL(); + static LanguageDefinition GLSL(); + static LanguageDefinition C(); + static LanguageDefinition SQL(); + static LanguageDefinition AngelScript(); + static LanguageDefinition Lua(); + }; + + TextEditor(); + ~TextEditor(); + + void SetLanguageDefinition(const LanguageDefinition& aLanguageDef); + const LanguageDefinition& GetLanguageDefinition() const { return mLanguageDefinition; } + + const Palette& GetPalette() const { return mPalette; } + void SetPalette(const Palette& aValue); + + void SetErrorMarkers(const ErrorMarkers& aMarkers) { mErrorMarkers = aMarkers; } + void SetBreakpoints(const Breakpoints& aMarkers) { mBreakpoints = aMarkers; } + + void Render(const char* aTitle, const ImVec2& aSize = ImVec2(), bool aBorder = false); + void SetText(const std::string& aText); + std::string GetText() const; + std::string GetSelectedText() const; + + int GetTotalLines() const { return (int)mLines.size(); } + bool IsOverwrite() const { return mOverwrite; } + + void SetReadOnly(bool aValue); + bool IsReadOnly() const { return mReadOnly; } + bool IsTextChanged() const { return mTextChanged; } + + Coordinates GetCursorPosition() const { return GetActualCursorCoordinates(); } + void SetCursorPosition(const Coordinates& aPosition); + + void InsertText(const std::string& aValue); + void InsertText(const char* aValue); + + void MoveUp(int aAmount = 1, bool aSelect = false); + void MoveDown(int aAmount = 1, bool aSelect = false); + void MoveLeft(int aAmount = 1, bool aSelect = false, bool aWordMode = false); + void MoveRight(int aAmount = 1, bool aSelect = false, bool aWordMode = false); + void MoveTop(bool aSelect = false); + void MoveBottom(bool aSelect = false); + void MoveHome(bool aSelect = false); + void MoveEnd(bool aSelect = false); + + void SetSelectionStart(const Coordinates& aPosition); + void SetSelectionEnd(const Coordinates& aPosition); + void SetSelection(const Coordinates& aStart, const Coordinates& aEnd, SelectionMode aMode = SelectionMode::Normal); + void SelectWordUnderCursor(); + void SelectAll(); + bool HasSelection() const; + + void Copy(); + void Cut(); + void Paste(); + void Delete(); + + bool CanUndo() const; + bool CanRedo() const; + void Undo(int aSteps = 1); + void Redo(int aSteps = 1); + + static const Palette& GetDarkPalette(); + static const Palette& GetLightPalette(); + static const Palette& GetRetroBluePalette(); + +private: + typedef std::vector> RegexList; + + struct EditorState + { + Coordinates mSelectionStart; + Coordinates mSelectionEnd; + Coordinates mCursorPosition; + }; + + class UndoRecord + { + public: + UndoRecord() {} + ~UndoRecord() {} + + UndoRecord( + const std::string& aAdded, + const TextEditor::Coordinates aAddedStart, + const TextEditor::Coordinates aAddedEnd, + + const std::string& aRemoved, + const TextEditor::Coordinates aRemovedStart, + const TextEditor::Coordinates aRemovedEnd, + + TextEditor::EditorState& aBefore, + TextEditor::EditorState& aAfter); + + void Undo(TextEditor* aEditor); + void Redo(TextEditor* aEditor); + + std::string mAdded; + Coordinates mAddedStart; + Coordinates mAddedEnd; + + std::string mRemoved; + Coordinates mRemovedStart; + Coordinates mRemovedEnd; + + EditorState mBefore; + EditorState mAfter; + }; + + typedef std::vector UndoBuffer; + + void ProcessInputs(); + void Colorize(int aFromLine = 0, int aCount = -1); + void ColorizeRange(int aFromLine = 0, int aToLine = 0); + void ColorizeInternal(); + int TextDistanceToLineStart(const Coordinates& aFrom) const; + void EnsureCursorVisible(); + int GetPageSize() const; + int AppendBuffer(std::string& aBuffer, char chr, int aIndex); + std::string GetText(const Coordinates& aStart, const Coordinates& aEnd) const; + Coordinates GetActualCursorCoordinates() const; + Coordinates SanitizeCoordinates(const Coordinates& aValue) const; + void Advance(Coordinates& aCoordinates) const; + void DeleteRange(const Coordinates& aStart, const Coordinates& aEnd); + int InsertTextAt(Coordinates& aWhere, const char* aValue); + void AddUndo(UndoRecord& aValue); + Coordinates ScreenPosToCoordinates(const ImVec2& aPosition) const; + Coordinates FindWordStart(const Coordinates& aFrom) const; + Coordinates FindWordEnd(const Coordinates& aFrom) const; + bool IsOnWordBoundary(const Coordinates& aAt) const; + void RemoveLine(int aStart, int aEnd); + void RemoveLine(int aIndex); + Line& InsertLine(int aIndex); + void EnterCharacter(Char aChar); + void BackSpace(); + void DeleteSelection(); + std::string GetWordUnderCursor() const; + std::string GetWordAt(const Coordinates& aCoords) const; + + float mLineSpacing; + Lines mLines; + EditorState mState; + UndoBuffer mUndoBuffer; + int mUndoIndex; + + int mTabSize; + bool mOverwrite; + bool mReadOnly; + bool mWithinRender; + bool mScrollToCursor; + bool mTextChanged; + int mColorRangeMin, mColorRangeMax; + SelectionMode mSelectionMode; + + Palette mPalette; + LanguageDefinition mLanguageDefinition; + RegexList mRegexList; + + bool mCheckMultilineComments; + Breakpoints mBreakpoints; + ErrorMarkers mErrorMarkers; + ImVec2 mCharAdvance; + Coordinates mInteractiveStart, mInteractiveEnd; +}; +