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vn/code/vn_workspace_text_editor.cpp

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////////////////////////////////
//~ sixten: Mutable String Functions
static mutable_string MutableStringAllocate(u64 Size)
{
mutable_string Result = {};
Result.Arena = ArenaAlloc(Size);
ArenaSetAlign(Result.Arena, 1);
Result.String = MakeString(PushArray(Result.Arena, u8, 1), 0LL);
return(Result);
}
static void MutableStringRelease(mutable_string *String)
{
ArenaRelease(String->Arena);
}
static void MutableStringReplaceRange(mutable_string *MutString, string ReplaceString, range1_s64 Range)
{
Range = Intersection(Range, Range1S64(0, MutString->String.Count));
s64 NewCount = MutString->String.Count+ReplaceString.Count-DimOfRange(Range);
if(NewCount > MutString->String.Count)
{
s64 ToAllocate = NewCount-MutString->String.Count;
PushArrayNoClear(MutString->Arena, u8, ToAllocate);
}
else if(NewCount < MutString->String.Count)
{
ArenaPopTo(MutString->Arena, sizeof(arena)+NewCount+1);
}
Move(MutString->String.Data+Range.Min+ReplaceString.Count, MutString->String.Data+Range.Max, MutString->String.Count-Range.Min-DimOfRange(Range));
Copy(MutString->String.Data+Range.Min, ReplaceString.Data, ReplaceString.Count);
MutString->String.Count = NewCount;
MutString->String.Data[NewCount] = 0;
}
////////////////////////////////
//~ sixten: History & Undo Functions
static history_entry HistoryEntry(arena *Arena, string ReplaceString, range1_s64 Range)
{
// sixten(TODO): proper memory management, right now we just keep appending to the arena, which works but never frees any memory
history_entry Entry = {};
Entry.ReplaceString = PushString(Arena, ReplaceString);
Entry.Range = Range;
return(Entry);
}
static void AppendToHistory(arena *Arena, history_list *List, history_entry Forward, history_entry Backward)
{
// sixten(TODO): proper memory management, right now we just keep appending to the arena, which works but never frees any memory
history_node *Node = PushStructNoClear(Arena, history_node);
Node->Forward = Forward;
Node->Backward = Backward;
SenDLLInsertLast(&List->Sentinel, Node);
}
////////////////////////////////
//~ sixten: Workspace Text Editing Functions
static workspace_text_data W_TextDataFromString(arena *Arena, string Text)
{
temporary_memory Scratch = GetScratch(&Arena, 1);
//- sixten: clear the target arena
ArenaClear(Arena);
//- sixten: tokenize the text
tokenize_result TokenizeResult = T_TokenizeFromText(Arena, Text);
token_array Tokens = TokenizeResult.Tokens;
//- sixten: gather all line ranges
range1_s64_list Lines = {};
{
u8 *TextBegin = Text.Data;
u8 *TextEnd = TextBegin + Text.Count;
range1_s64 Range = Range1S64(0, 0);
for(u8 *Char = TextBegin; Char <= TextEnd; Char += 1)
{
Range.Max += 1;
//- sixten: push line range on newline and EOF
if(Char == TextEnd || *Char == '\n')
{
Range1S64ListPush(Scratch.Arena, &Lines, Range);
Range = Range1S64(Range.Max, Range.Max);
}
}
}
//- sixten: fill & return
workspace_text_data Result = {};
{
Result.Tokens = Tokens;
Result.Lines = Range1S64ArrayFromList(Arena, &Lines);;
}
ReleaseScratch(Scratch);
return(Result);
}
static void W_TextEditorApplyChanges(workspace_view_text_editor *Editor)
{
workspace_text_data TextData = W_TextDataFromString(Editor->ProcessingArena, Editor->Text.String);
Editor->Tokens = TextData.Tokens;
Editor->Lines = TextData.Lines;
Editor->Compiled = S_ScriptFromText(Editor->ProcessingArena, Editor->Text.String);
if(Editor->Compiled.IsValid)
{
SV_SetCurrentSource(&Editor->Compiled);
}
}
static void W_SaveTextEditorToFile(workspace_view_text_editor *Editor)
{
temporary_memory Scratch = GetScratch();
if(Editor->SavePoint != Editor->History.At)
{
string Path = PushFormat(Scratch.Arena, "%S/%S", Editor->FilePath, Editor->FileName);
platform_file_handle Handle = Platform.OpenFile(Path, PlatformAccess_Write);
if(Handle.IsValid)
{
Platform.WriteFile(Handle, Editor->Text.String.Data, 0, Editor->Text.String.Count);
Platform.CloseFile(Handle);
}
Editor->SavePoint = Editor->History.At;
}
ReleaseScratch(Scratch);
}
////////////////////////////////
//~ sixten: Workspace Text Editor Builder Functions
static UI_CUSTOM_DRAW_CALLBACK(W_TextEditorDrawCallback)
{
temporary_memory Scratch = GetScratch();
workspace_view_text_editor *Editor = (workspace_view_text_editor *)Data;
//- sixten: get dimensions & scroll offset from container
ui_box *ContainerBox = Editor->ContainerBox;
range2_r32 ParentRect = ContainerBox->Rect;
v2 ParentDim = DimOfRange(ParentRect);
v2 Offset = Box->Parent->Offset;
//- sixten: rendering properties
r32 FontSize = Editor->FontSize;
r32 LineHeight = FontSize + 4.0f;
//- sixten: calculate the dimensions of the glyphs
glyph *Glyph = GetGlyph(Atlas, Font_Monospace, 'A', FontSize, 0);
r32 GlyphAdvance = Glyph->Advance;
//- sixten: find the text point
text_point CursorTextP = TextPointFromOffset(Editor->Text.String, Editor->EditState.Cursor);
text_point MarkTextP = TextPointFromOffset(Editor->Text.String, Editor->EditState.Mark);
//- sixten: get the line count
range1_s64_array *Lines = &Editor->Lines;
s64 LineCount = Lines->Count;
//- sixten: calculate the text dim
Editor->TextDim = V2(1900, LineCount*LineHeight);
//- sixten: calculate the line margin dim
s32 LineMarginDigitsRequired = 6;
v2_r32 LineMarginDim = V2((LineMarginDigitsRequired)*GlyphAdvance, ParentRect.Max.y - ParentRect.Min.y);
//- sixten: tokenize text
tokenize_result TokenizeResult = T_TokenizeFromText(Scratch.Arena, Editor->Text.String);
token_array Tokens = TokenizeResult.Tokens;
token *TokensBegin = Tokens.Tokens;
token *TokensEnd = TokensBegin + Tokens.Count;
//- sixten: find the first visible token
token *VisibleTokensBegin = TokensBegin;
s64 TopMostLine = Min((s64)Floor(-Offset.y / LineHeight), LineCount);
for(s64 LinesFound = 0; LinesFound < TopMostLine && VisibleTokensBegin < TokensEnd; VisibleTokensBegin += 1)
{
if(VisibleTokensBegin->Kind == TokenKind_Newline)
{
LinesFound += 1;
}
}
//- sixten: find the last visible token
token *VisibleTokensEnd = VisibleTokensBegin;
s64 LinesOnScreen = Min((s64)Floor(ParentDim.y / LineHeight)+1, LineCount-TopMostLine);
for(s64 LinesFound = 0; LinesFound < LinesOnScreen && VisibleTokensEnd < TokensEnd; VisibleTokensEnd += 1)
{
if(VisibleTokensEnd->Kind == TokenKind_Newline)
{
LinesFound += 1;
}
}
//- sixten: draw line numbers & line highlights
{
//- sixten: draw the background
v4 LineMarginColor = ColorFromHex(0x10203080);
range2_r32 LineMarginBox = Range2R32(ParentRect.Min, ParentRect.Min+LineMarginDim);
PushQuad(Group, LineMarginBox, LineMarginColor, LineMarginColor, LineMarginColor, LineMarginColor, 0, 0, 0);
//- sixten: draw the numbers
v2_r32 LineOffset = Box->Rect.Min;
for(s64 LineIndex = TopMostLine; LineIndex < TopMostLine + LinesOnScreen; LineIndex += 1)
{
r32 LineY = LineOffset.y + LineIndex*LineHeight;
PushTextF(Group, Atlas, Font_Monospace, V2(0, LineY), FontSize, Color_Grey, "%*.i", LineMarginDigitsRequired, LineIndex+1);
if(LineIndex + 1 == CursorTextP.Line)
{
v4_r32 LineHighlightColor = ColorFromHex(0x10204080);
range2_r32 LineHighlightBox = Range2R32(V2(LineMarginBox.Max.x, LineY), V2(Box->Rect.Max.x, LineY+LineHeight));
PushQuad(Group, LineHighlightBox, LineHighlightColor, LineHighlightColor, LineHighlightColor, LineHighlightColor, 0, 0, 0);
}
}
}
//- sixten: render tokens
v2 BaseTokenP = Box->Rect.Min+V2(LineMarginDim.x, TopMostLine*LineHeight);
v2 TokenP = BaseTokenP;
for(token *Token = VisibleTokensBegin; Token < VisibleTokensEnd; Token += 1)
{
string TokenString = T_StringFromToken(Editor->Text.String, *Token);
//- sixten: get color & font from token
font_id Font = Font_Monospace;
v4 Color = Color_Magenta;
if(Token->Kind == TokenKind_Comment) { Color = Color_Grey; Font = Font_MonospaceOblique; }
else if(Token->Kind > TokenKind_SymbolsBegin && Token->Kind < TokenKind_SymbolsEnd) { Color = Color_Grey; }
else if(Token->Kind == TokenKind_StringLiteral) { Color = ColorFromHex(0xffa900ff); }
else if(Token->Kind == TokenKind_Numeric) { Color = ColorFromHex(0xffa900ff); }
else if(Token->Kind > TokenKind_KeywordsBegin && Token->Kind < TokenKind_KeywordsEnd)
{
if(Token->Kind == TokenKind_True || Token->Kind == TokenKind_False)
{
Color = ColorFromHex(0xffa900ff);
}
else
{
Color = ColorFromHex(0xf0c674ff);
}
}
else if(Token->Kind == TokenKind_Identifier)
{
Color = Theme_TextColor;
}
//- sixten: check for errors
b32 ConsideredError = false;
for(scene_compile_error *Error = Editor->Compiled.Errors.First; Error != 0; Error = Error->Next)
{
if(Error->Token.Range.Min == Token->Range.Min &&
Error->Token.Range.Max == Token->Range.Max)
{
ConsideredError = true;
break;
}
}
//- sixten: render & advance by token
if(!(T_IsWhitespace(Token->Kind)))
{
if(Token->Kind == TokenKind_Comment)
{
//- sixten: advance to newline and push text
// sixten(TODO): proper multiline comment rendering.
u8 *TextBegin = TokenString.Data;
u8 *TextEnd = TextBegin+TokenString.Count;
u8 *Marker = TextBegin;
for(u8 *Byte = TextBegin; Byte <= TextEnd; Byte += 1)
{
if(*Byte == '\n' || Byte == TextEnd)
{
PushText(Group, Atlas, Font, TokenP, FontSize, Color, MakeString(Marker, Byte-Marker));
Marker = Byte+1;
if(*Byte == '\n' && Byte != TextEnd)
{
TokenP.x = BaseTokenP.x;
TokenP.y += LineHeight;
}
}
}
}
else
{
r32 TokenWidth = PushText(Group, Atlas, Font, TokenP, FontSize, Color, TokenString);
//- sixten: render error highlight
if(ConsideredError)
{
range2_r32 Dest = Range2R32(TokenP+V2R32(0, LineHeight-3), TokenP+V2R32(TokenWidth, LineHeight));
v4_r32 ErrorColor = V4R32(0.9f, 0.3f, 0.3f, 0.8f);
PushQuad(Group, Dest, ErrorColor, ErrorColor, ErrorColor, ErrorColor, 3, 0.4, 0);
}
TokenP.x += TokenWidth;
}
}
else
{
if(Token->Kind == TokenKind_Newline)
{
TokenP.x = BaseTokenP.x;
TokenP.y += LineHeight;
}
else
{
u8 *StringBegin = TokenString.Data;
u8 *StringEnd = StringBegin + TokenString.Count;
for(u8 *Char = StringBegin; Char < StringEnd; Char += 1)
{
if(*Char == ' ' || *Char == '\t')
{
TokenP.x += GlyphAdvance;
}
}
}
}
}
//- sixten: render cursor
{
s64 LineIndex = CursorTextP.Line-1;
string Line = Substring(Editor->Text.String, Editor->Lines.Ranges[LineIndex]);
s64 ColumnIndex = CursorTextP.Column-1;
s64 ColumnOffset = UTF8OffsetFromIndex(Line, ColumnIndex);
v2 TargetCursorP = Box->Rect.Min+V2(LineMarginDim.x+ColumnOffset*GlyphAdvance, LineIndex*LineHeight);
v2 CursorP = V2(AC_AnimateValueF(TargetCursorP.x, TargetCursorP.x, 0.1, "Workspace Text Editor Cursor X %p", Editor),
AC_AnimateValueF(TargetCursorP.y, TargetCursorP.y, 0.1, "Workspace Text Editor Cursor Y %p", Editor));
v2 CursorDim = V2(2, LineHeight);
range2_r32 CursorRect = Range2R32(CursorP, CursorP+CursorDim);
v4 CursorColor = ColorFromHex(0x10FF20FF);
PushQuad(Group, CursorRect, CursorColor, CursorColor, CursorColor, CursorColor, 2, 0.4, 0);
}
//- sixten: render the selection
{
text_range Selection = TextRange(CursorTextP, MarkTextP);
range1_s64 LineRange = Range1S64(Selection.Min.Line, Selection.Max.Line);
for(s64 LineIndex = TopMostLine; LineIndex < TopMostLine + LinesOnScreen; LineIndex += 1)
{
if(Contains(LineRange, LineIndex + 1))
{
range1_s64 ColumnRange = Lines->Ranges[LineIndex];
range1_s64 NormalizedColumnRange = Range1S64(0, DimOfRange(ColumnRange));
if(LineIndex+1 == LineRange.Min && LineIndex+1 == LineRange.Max)
{
NormalizedColumnRange = Range1S64(Editor->EditState.Cursor - ColumnRange.Min, Editor->EditState.Mark - ColumnRange.Min);
}
else if(LineIndex+1 == LineRange.Min)
{
NormalizedColumnRange = Range1S64(Min(Editor->EditState.Mark, Editor->EditState.Cursor) - ColumnRange.Min, DimOfRange(ColumnRange));
}
else if(LineIndex+1 == LineRange.Max)
{
NormalizedColumnRange = Range1S64(0, Max(Editor->EditState.Mark, Editor->EditState.Cursor) - ColumnRange.Min);
}
string Line = Substring(Editor->Text.String, ColumnRange);
range1_s64 ColumnOffsetRange = Range1S64(UTF8OffsetFromIndex(Line, NormalizedColumnRange.Min),
UTF8OffsetFromIndex(Line, NormalizedColumnRange.Max));
r32 LineY = LineIndex*LineHeight;
v4_r32 LineHighlightColor = ColorFromHex(0x66B3CC4C);
range2_r32 LineHighlightBox = Range2R32(Box->Rect.Min+V2(LineMarginDim.x+ColumnOffsetRange.Min*GlyphAdvance, LineY),
Box->Rect.Min+V2(LineMarginDim.x+ColumnOffsetRange.Max*GlyphAdvance, LineY+LineHeight));
PushQuad(Group, LineHighlightBox, LineHighlightColor, LineHighlightColor, LineHighlightColor, LineHighlightColor, 4, 1.4, 0);
}
}
}
ReleaseScratch(Scratch);
}
UI_CUSTOM_DRAW_CALLBACK(W_TextEditorListerInputCallback)
{
workspace_view_text_editor *Editor = (workspace_view_text_editor *)Data;
s64 ClampedCursor = Clamp(0, Box->String.Count, Editor->ListerInputEditState.Cursor);
s64 ClampedMark = Clamp(0, Box->String.Count, Editor->ListerInputEditState.Mark);
string ToCursor = MakeString(Box->String.Data, ClampedCursor);
string ToMark = MakeString(Box->String.Data, ClampedMark);
r32 TargetCursorX = CalculateRasterizedTextWidth(Atlas, Box->Font, Box->FontSize, ToCursor);
r32 TargetMarkerX = CalculateRasterizedTextWidth(Atlas, Box->Font, Box->FontSize, ToMark);
r32 CursorX = AC_AnimateValueF(TargetCursorX, 0, 0.175, "Workspace View Input Cursor %p", Box);
r32 MarkerX = AC_AnimateValueF(TargetMarkerX, 0, 0.175, "Workspace View Input Mark %p", Box);
v2 BoxDim = DimOfRange(Box->Rect);
// sixten: Draw selection
{
v2 Offset = V2(7.5, (BoxDim.y - Box->FontSize) / 2);
v2 Dim = V2(0, Box->FontSize);
if(CursorX > MarkerX)
{
Offset.x += MarkerX;
Dim.x = CursorX - MarkerX;
}
else
{
Offset.x += CursorX;
Dim.x = MarkerX - CursorX;
}
v2 P = Box->Rect.Min + Offset;
v4 Color = V4(0.4, 0.7, 0.8, 0.3);
PushQuad(Group, Range2R32(P, P+Dim), Color, 0, 0, 0);
}
// sixten: Draw cursor
{
range1_r32 CursorSpan = Range1R32(CursorX, TargetCursorX);
r32 Height = Box->FontSize + 4;
v2 Offset = V2(7.5F + CursorSpan.Min, (BoxDim.y - Height) / 2);
v2 Dim = V2(1.25F + CursorSpan.Max - CursorSpan.Min, Height);
v2 P = Box->Rect.Min + Offset;
v4 Color = V4(0.3, 1, 0.3, 0.7);
PushQuad(Group, Range2R32(P, P+Dim), Color, 0, 0, 0);
}
}
static b32 W_BuildTextEditorListerItem(string Text, u32 Icon, b32 Selected, b32 EnterPressed)
{
b32 Result = false;
UI_SetNextLayoutAxis(Axis2_X);
UI_SetNextHoverCursor(PlatformCursor_Hand);
r32 SelectedT = AC_AnimateValueF(Selected, 0, 0.3f, "Lister Item %S", Text);
UI_SetNextBackgroundColor(LinearBlend(Theme_BackgroundColor, Theme_HighlightBorderColor, SelectedT*0.5));
UI_SetNextBorderColor(LinearBlend(Theme_BorderColor, Theme_HighlightBorderColor, SelectedT));
ui_box *Container = UI_MakeBoxF(UI_BoxFlag_DrawBorder |
UI_BoxFlag_DrawBackground |
UI_BoxFlag_Clickable |
UI_BoxFlag_HotAnimation |
UI_BoxFlag_ActiveAnimation|
UI_BoxFlag_DrawDropShadow,
"File Lister %S", Text);
UI_Parent(Container)
{
UI_Width(UI_Em(2, 1)) UI_Font(Font_Icons) UI_LabelF("%U", Icon);
UI_Width(UI_TextContent(0, 1)) UI_Label(Text);
}
ui_signal Signal = UI_SignalFromBox(Container);
if(Signal.Clicked || Selected&&EnterPressed)
{
Result = true;
}
return(Result);
}
static workspace_text_editor_lister_action W_BuildTextEditorLister(workspace_view *View, workspace_view_text_editor *Editor)
{
workspace_text_editor_lister_action ListerAction = {};
temporary_memory Scratch = GetScratch();
UI_Size(UI_Percent(1, 1), UI_Percent(1, 1)) UI_Scroll(0, &Editor->ListerScroll)
{
UI_Height(UI_Em(2, 1))
{
b32 EnterPressed = Platform_KeyPress(UI_EventList(), Key_Return);
s32 SelectedItemDelta = 0;
//- sixten: filename input field
if(W_ViewIsCurrent(View))
{
for(platform_event *Event = UI_EventList()->First; Event != 0; Event = Event->Next)
{
if((Event->Type == PlatformEvent_Press || Event->Type == PlatformEvent_Text) && (Event->Codepoint != '/' && Event->Codepoint != '\\'))
{
text_action Action = SingleLineTextActionFromEvent(Event);
if(IsValid(&Action))
{
text_op Op = TextOpFromAction(Scratch.Arena, MakeString(Editor->ListerInput, Editor->ListerInputUsed), &Editor->ListerInputEditState, &Action);
if(Op.NewCursor >= 0 && Op.NewMark >= 0)
{
string Left = MakeString(Editor->ListerInput, Op.Range.Min);
string Right = MakeString(Editor->ListerInput + Op.Range.Max, Editor->ListerInputUsed - Op.Range.Max);
u64 NewStringSize = Left.Count + Right.Count + Op.ReplaceString.Count;
char *NewString = PushArray(Scratch.Arena, char, NewStringSize);
Copy(NewString, Left.Data, Left.Count);
Copy(NewString + Left.Count, Op.ReplaceString.Data, Op.ReplaceString.Count);
Copy(NewString + Left.Count + Op.ReplaceString.Count, Right.Data, Right.Count);
Editor->ListerInputUsed = Minimum(ArrayCount(Editor->ListerInput), NewStringSize);
Copy(Editor->ListerInput, NewString, Editor->ListerInputUsed);
Editor->ListerInputEditState.Cursor = Minimum(Op.NewCursor, Editor->ListerInputUsed);
Editor->ListerInputEditState.Mark = Minimum(Op.NewMark, Editor->ListerInputUsed);
Platform_ConsumeEvent(UI_EventList(), Event);
}
}
}
if(Event->Type == PlatformEvent_Press && (Event->Key == Key_Up || Event->Key == Key_Down))
{
SelectedItemDelta = Event->Key == Key_Up ? -1 : 1;
}
}
}
//- sixten: build navbar
UI_Row(UI_BoxFlag_DrawBorder)
{
UI_SetNextBackgroundColor(ColorFromHex(0x2D5790FF));
UI_SetNextWidth(UI_TextContent(20, 1));
UI_MakeBox(UI_BoxFlag_DrawBackground|UI_BoxFlag_DrawText, Editor->Path);
UI_SetNextWidth(UI_TextContent(15, 1));
ui_box *InputBox = UI_MakeBox(UI_BoxFlag_DrawText, StrLit("Text Editor Lister Input"));
UI_EquipBoxText(InputBox, MakeString(Editor->ListerInput, Editor->ListerInputUsed));
UI_EquipBoxCustomDrawCallback(InputBox, W_TextEditorListerInputCallback, Editor);
UI_Padding(UI_Percent(1, 0));
UI_SetNextWidth(UI_TextContent(20, 1));
if(UI_ButtonF("Open/Create").Clicked || EnterPressed)
{
ListerAction.HasRequestedFile = true;
ListerAction.Name = MakeString(Editor->ListerInput, Editor->ListerInputUsed);
ListerAction.Path = Editor->Path;
}
}
s32 ListerCount = 0;
//- sixten: display "parent directory button"
s64 LastSlash = LastIndexOf(Editor->Path, '/');
if(LastSlash != -1)
{
b32 BackspacePressed = Editor->ListerInputUsed == 0 && Platform_KeyPress(UI_EventList(), Key_Backspace);
if(W_BuildTextEditorListerItem(StrLit("Parent Directory"), FontIcon_Reply, Editor->SelectedItem == ListerCount, EnterPressed) ||
BackspacePressed)
{
Editor->Path = Prefix(Editor->Path, LastSlash);
Editor->ListerInputUsed = 0;
Editor->SelectedItem = -1;
}
ListerCount += 1;
}
platform_file_info FileInfo;
platform_file_iter *FileIter;
string Name = MakeString(Editor->ListerInput, Editor->ListerInputUsed);
string FullPath = PushFormat(Scratch.Arena, "%S/%S", Editor->Path, Name);
//- sixten: display directories
{
FileIter = Platform.BeginFileIter(Scratch.Arena, FullPath);
for(;Platform.AdvanceFileIter(Scratch.Arena, FileIter, &FileInfo);)
{
if(FileInfo.IsDirectory)
{
if(W_BuildTextEditorListerItem(FileInfo.Name, FontIcon_Folder, Editor->SelectedItem == ListerCount, EnterPressed))
{
Editor->Path = PushFormat(View->Arena, "%S/%S", Editor->Path, FileInfo.Name);
Editor->ListerInputUsed = 0;
Editor->SelectedItem = -1;
ListerAction.HasRequestedFile = false; // sixten: if we have selected a folder, but typed a name we want to open the folder.
}
ListerCount += 1;
}
}
}
Platform.EndFileIter(FileIter);
//- sixten: display files
{
FileIter = Platform.BeginFileIter(Scratch.Arena, FullPath);
for(;Platform.AdvanceFileIter(Scratch.Arena, FileIter, &FileInfo);)
{
if(!FileInfo.IsDirectory)
{
if(W_BuildTextEditorListerItem(FileInfo.Name, FontIcon_Document, Editor->SelectedItem == ListerCount, EnterPressed))
{
ListerAction.HasRequestedFile = true;
Editor->SelectedItem = -1;
ListerAction.Name = PushString(View->Arena, FileInfo.Name);
ListerAction.Path = Editor->Path;
}
ListerCount += 1;
}
}
}
//- sixten: update selected item
if(SelectedItemDelta != 0)
{
Editor->SelectedItem += SelectedItemDelta;
if(Editor->SelectedItem < 0)
{
Editor->SelectedItem += ListerCount;
}
else if(Editor->SelectedItem >= ListerCount)
{
Editor->SelectedItem -= ListerCount;
}
}
Platform.EndFileIter(FileIter);
}
}
ReleaseScratch(Scratch);
return(ListerAction);
}
static b32 W_ProcessTextEditorEvent(workspace_view_text_editor *Editor, platform_event *Event)
{
b32 CursorHasBeenModified = false;
temporary_memory Scratch = GetScratch();
text_action Action = MultiLineTextActionFromEvent(Event);
if(IsValid(&Action))
{
text_op Op = TextOpFromAction(Scratch.Arena, Editor->Text.String, &Editor->EditState, &Action, &Editor->Lines, Editor->LastTextPoint.Column - 1);
if(DimOfRange(Op.Range) != 0 || !AreEqual(StrLit(""), Op.ReplaceString))
{
//- sixten: append to the history
{
history_list *List = &Editor->History;
//- sixten: remove the pre-existing history if needed
if(List->Sentinel.Prev != List->At)
{
// sixten(TODO): instead of just removing the links to the old memory, find some way to manage it.
List->Sentinel.Prev->Next = List->At;
List->Sentinel.Prev = List->At;
}
range1_s64 Selection = Range1S64(Editor->EditState.Cursor, Editor->EditState.Mark);
AppendToHistory(Editor->HistoryArena, List,
HistoryEntry(Editor->HistoryArena, Op.ReplaceString, Op.Range),
HistoryEntry(Editor->HistoryArena, Substring(Editor->Text.String, Op.Range), Range1S64(Op.Range.Min, Op.Range.Min+Op.ReplaceString.Count)));
List->At = List->Sentinel.Prev;
}
//- sixten: apply the text action
string ReplaceString = RemoveAll(Scratch.Arena, Op.ReplaceString, '\r');
MutableStringReplaceRange(&Editor->Text, ReplaceString, Op.Range);
W_TextEditorApplyChanges(Editor);
}
CursorHasBeenModified = true;
Editor->EditState.Cursor = Op.NewCursor;
Editor->EditState.Mark = Op.NewMark;
}
ReleaseScratch(Scratch);
return(CursorHasBeenModified);
}
static void W_BuildTextEditorInfoBar(workspace_view_text_editor *Editor)
{
UI_SetNextLayoutAxis(Axis2_X);
UI_WidthFill UI_Height(UI_Em(1.75f, 1)) UI_Parent(UI_MakeBoxF(UI_BoxFlag_DrawDropShadow, "")) UI_Padding(UI_Em(1, 1))
{
UI_Width(UI_TextContent(0, 1))
{
UI_Font(Font_Icons) UI_LabelF("%U", FontIcon_Attention);
UI_Spacer(UI_Em(0.5f, 1));
UI_LabelF("%i", Editor->Compiled.Errors.Count);
}
}
}
static void W_BuildTextEditor(workspace_view *View)
{
workspace_view_text_editor *Editor = (workspace_view_text_editor *)View->Data;
temporary_memory Scratch = GetScratch();
//- sixten: rendering properties
r32 FontSize = Editor->FontSize = 13.0f;
r32 LineHeight = FontSize + 4.0f;
//- sixten: calculate the dimensions of the glyphs
glyph *Glyph = GetGlyph(UI_GlyphAtlas(), Font_Monospace, 'A', FontSize, 0);
r32 GlyphAdvance = Glyph->Advance;
//- sixten: calculate the line margin dim
s32 LineMarginDigitsRequired = 6;
r32 LineMarginWidth = (LineMarginDigitsRequired)*GlyphAdvance;
b32 InFileListMode = AreEqual(Editor->FileName, StrLit(""));
if(InFileListMode)
{
//- sixten: handle esc to close
if(Platform_KeyPress(UI_EventList(), Key_Escape))
{
W_IssueCommand(W_Command_CloseView, PointerToU64(View));
}
//- sixten: build & handle file lister
workspace_text_editor_lister_action Action = W_BuildTextEditorLister(View, Editor);
if(Action.HasRequestedFile)
{
//- sixten: try to load file
string FullPath = PushFormat(Scratch.Arena, "%S/%S", Action.Path, Action.Name);
platform_file_handle File = Platform.OpenFile(FullPath, PlatformAccess_Read);
if(File.IsValid)
{
s64 FileSize = Platform.GetFileSize(File);
string ReplaceString = MakeString(PushArray(Scratch.Arena, u8, FileSize+1), FileSize);
Platform.ReadFile(File, ReplaceString.Data, 0, ReplaceString.Count);
ReplaceString = RemoveAll(Scratch.Arena, ReplaceString, '\r');
MutableStringReplaceRange(&Editor->Text, ReplaceString, Range1S64(0, 0));
W_TextEditorApplyChanges(Editor);
Editor->FileName = Action.Name;
Editor->FilePath = Action.Path;
Platform.CloseFile(File);
}
else
{
Editor->FileName = Action.Name;
Editor->FilePath = Action.Path;
Editor->SelectedItem = -1;
}
}
}
else
{
//- sixten: build & handle the text editor
ui_box *EditorBox = 0;
UI_SetNextSize(UI_Percent(1, 1), UI_Percent(1, 0));
UI_Scroll(0, &Editor->Offset.y)
{
//- sixten: find the container box for the scrollable region
Editor->ContainerBox = UI_TopParent()->Parent->Parent;
UI_SetNextSize(UI_Pixels(Editor->TextDim.x, 1), UI_Pixels(Editor->TextDim.y, 1));
EditorBox = UI_MakeBoxF(UI_BoxFlag_DrawBackground|UI_BoxFlag_Clickable, "Workspace Text Editor %p", View);
UI_EquipBoxCustomDrawCallback(EditorBox, W_TextEditorDrawCallback, Editor);
}
//- sixten: build footer
W_BuildTextEditorInfoBar(Editor);
r32 TargetFooterHeightEm = 2.25f*Min(Editor->Compiled.Errors.Count, 10LL);
UI_Size(UI_Percent(1, 0), UI_Em(AC_AnimateValueF(TargetFooterHeightEm, TargetFooterHeightEm, 0.3, "Error Lister %p", Editor), 1)) UI_Column() UI_Height(UI_TextContent(0, 1))
{
s64 Index = 0;
for(scene_compile_error *Error = Editor->Compiled.Errors.First; Error != 0; Error = Error->Next, Index += 1)
{
UI_SetNextHeight(UI_ChildrenSum(1, 1));
UI_SetNextLayoutAxis(Axis2_X);
UI_Parent(UI_MakeBoxF(0, "Editor Error Lister Container %p", Error)) UI_Padding(UI_Em(1, 1)) UI_Height(UI_Em(1.75f, 1))
{
UI_SetNextBackgroundColor(SetAlpha(Theme_BorderColor, 0.8f));
UI_SetNextCornerRadius(4);
UI_SetNextLayoutAxis(Axis2_X);
UI_SetNextHoverCursor(PlatformCursor_Hand);
ui_box *ContainerBox = UI_MakeBoxF(UI_BoxFlag_Clickable|UI_BoxFlag_DrawDropShadow|UI_BoxFlag_DrawBorder, "Container Box");
UI_Parent(ContainerBox) UI_Padding(UI_Em(1, 1)) UI_Width(UI_TextContent(0, 1))
{
UI_Font(Font_Icons) UI_LabelF("%U", FontIcon_Attention);
UI_Spacer(UI_Em(0.5f, 1));
// sixten(TODO): this is dumb, slow and downright stupid.
text_point Point = TextPointFromOffset(Editor->Text.String, Error->Token.Range.Min);
UI_LabelF("%i:%i", Point.Line, Point.Column);
UI_Spacer(UI_Em(0.5f, 1));
UI_Label(Error->Message);
UI_Spacer(UI_Percent(1, 0));
}
ui_signal Signal = UI_SignalFromBox(ContainerBox);
if(Signal.Hovering)
{
UI_TooltipLabel(StrLit("Goto in source"), UI_MouseP());
}
}
UI_Spacer(UI_Em(0.5, 1));
}
}
b32 CursorHasBeenModified = false;
if(W_ViewIsCurrent(View))
{
//- sixten: handle history
{
history_list *List = &Editor->History;
//- sixten: undo
if(Platform_KeyPress(UI_EventList(), Key_Z, PlatformModifier_Ctrl))
{
history_node *Node = List->At;
if(Node != &List->Sentinel)
{
//- sixten: get entry & apply
history_entry Entry = Node->Backward;
MutableStringReplaceRange(&Editor->Text, Entry.ReplaceString, Entry.Range);
W_TextEditorApplyChanges(Editor);
Editor->EditState.Cursor = Editor->EditState.Mark = Entry.Range.Min+Entry.ReplaceString.Count;
CursorHasBeenModified = true;
List->At = Node->Prev;
}
}
//- sixten: redo
if(Platform_KeyPress(UI_EventList(), Key_Y, PlatformModifier_Ctrl))
{
history_node *Node = List->At->Next;
if(Node != &List->Sentinel)
{
//- sixten: get entry & apply
history_entry Entry = Node->Forward;
MutableStringReplaceRange(&Editor->Text, Entry.ReplaceString, Entry.Range);
W_TextEditorApplyChanges(Editor);
Editor->EditState.Cursor = Editor->EditState.Mark = Entry.Range.Min+Entry.ReplaceString.Count;
CursorHasBeenModified = true;
List->At = Node;
}
}
}
//- sixten: save
if(Platform_KeyPress(UI_EventList(), Key_S, PlatformModifier_Ctrl))
{
W_SaveTextEditorToFile(Editor);
}
//- sixten: select all
if(Platform_KeyPress(UI_EventList(), Key_A, PlatformModifier_Ctrl))
{
Editor->EditState.Mark = 0;
Editor->EditState.Cursor = Editor->Text.String.Count;
}
//- sixten: keyboard input -> text op
for(platform_event *Event = UI_EventList()->First;
Event != 0;
Event = Event->Next)
{
if(Event->Type == PlatformEvent_Press || Event->Type == PlatformEvent_Text)
{
//- sixten: auto-indent
s64 Indent = 0;
if(Event->Codepoint == '\n')
{
string Line = Substring(Editor->Text.String, Editor->Lines.Ranges[Editor->LastTextPoint.Line-1]);
if(Line.Data[Line.Count-1] == '\n')
{
Line.Count -= 1;
}
for(u8 *Data = Line.Data; *Data == '\t' && Data < Line.Data+Line.Count; Data += 1)
{
Indent += 1;
}
}
//- sixten: auto close bracket
if(Event->Codepoint == '{')
{
platform_event FakeEvent = {};
FakeEvent.Codepoint = '}';
FakeEvent.Type = PlatformEvent_Text;
CursorHasBeenModified |= W_ProcessTextEditorEvent(Editor, &FakeEvent);
FakeEvent.Key = Key_Left;;
FakeEvent.Type = PlatformEvent_Press;
CursorHasBeenModified |= W_ProcessTextEditorEvent(Editor, &FakeEvent);
}
//- sixten: auto close string literal
if(Event->Codepoint == '"')
{
platform_event FakeEvent = {};
FakeEvent.Codepoint = '"';
FakeEvent.Type = PlatformEvent_Text;
CursorHasBeenModified |= W_ProcessTextEditorEvent(Editor, &FakeEvent);
FakeEvent.Key = Key_Left;;
FakeEvent.Type = PlatformEvent_Press;
CursorHasBeenModified |= W_ProcessTextEditorEvent(Editor, &FakeEvent);
}
CursorHasBeenModified |= W_ProcessTextEditorEvent(Editor, Event);
//- sixten: apply indent
{
platform_event FakeTab = {};
FakeTab.Codepoint = '\t';
FakeTab.Type = PlatformEvent_Text;
for(s64 IndentIndex = 0; IndentIndex < Indent; IndentIndex += 1)
{
CursorHasBeenModified |= W_ProcessTextEditorEvent(Editor, &FakeTab);
}
}
}
}
}
//- sixten: right-click dropdown
{
if(Editor->DropdownActive)
{
UI_Tooltip
{
UI_SetNextFixedP(Editor->DropdownP);
UI_SetNextWidth(UI_Em(20, 1));
UI_SetNextHeight(UI_ChildrenSum(AC_AnimateValueDirect(1, 0.2, &Editor->DropdownTransition), 1));
UI_SetNextCornerRadius(4);
UI_Parent(UI_MakeBox(UI_BoxFlag_DrawBackground |
UI_BoxFlag_DrawDropShadow |
UI_BoxFlag_Clip |
UI_BoxFlag_FloatingX |
UI_BoxFlag_FloatingY, StrLit("Text Editor Dropdown")))
UI_Width(UI_Percent(1, 1)) UI_Height(UI_Em(1.66, 1))
UI_BackgroundColor(V4(0.25, 0.25, 0.25, 1))
UI_BorderColor(V4(0.45, 0.45, 0.45, 1))
UI_CornerRadius(2)
{
if(W_BuildMenuItem(FontIcon_Gamepad, "Run in scene view", "").Clicked)
{
SV_SetCurrentSource(&Editor->Compiled);
Editor->DropdownActive = false;
}
if(Editor->EditState.Cursor != Editor->EditState.Mark)
{
if(W_BuildMenuItem(FontIcon_Document, "Copy", "Ctrl+C").Clicked)
{
Editor->DropdownActive = false;
}
if(W_BuildMenuItem(FontIcon_Cut, "Cut", "Ctrl+X").Clicked)
{
Editor->DropdownActive = false;
}
}
if(W_BuildMenuItem(FontIcon_Paste, "Paste", "Ctrl+V").Clicked)
{
Editor->DropdownActive = false;
}
if(W_BuildMenuItem(FontIcon_Floppy, "Save", "Ctrl+S").Clicked)
{
W_SaveTextEditorToFile(Editor);
Editor->DropdownActive = false;
}
}
}
}
}
ui_signal Signal = UI_SignalFromBox(EditorBox);
if(Signal.Pressed || (Signal.PressedRight && (Editor->EditState.Cursor == Editor->EditState.Mark)))
{
//- sixten: translate mouse position to text point
v2 MouseOffset = Signal.MouseP - EditorBox->Rect.Min - V2(LineMarginWidth, 0);
s64 LineIndex = Clamp((s64)(MouseOffset.y / LineHeight), 0, Editor->Lines.Count);
string Line = Substring(Editor->Text.String, Editor->Lines.Ranges[LineIndex]);
s64 ColumnOffset = (s64)(MouseOffset.x / GlyphAdvance);
s64 ColumnIndex = UTF8IndexFromOffset(Line, ColumnOffset);
text_point Point = {LineIndex + 1, ColumnIndex + 1};
Editor->EditState.Cursor = Editor->EditState.Mark = OffsetFromTextPoint(Editor->Text.String, Editor->Lines, Point);
}
if(Signal.Dragging)
{
//- sixten: translate mouse position to text point
v2 MouseOffset = Signal.MouseP - EditorBox->Rect.Min - V2(LineMarginWidth, 0);
s64 LineIndex = Clamp((s64)(MouseOffset.y / LineHeight), 0, Editor->Lines.Count);
string Line = Substring(Editor->Text.String, Editor->Lines.Ranges[LineIndex]);
s64 ColumnOffset = (s64)(MouseOffset.x / GlyphAdvance);
s64 ColumnIndex = UTF8IndexFromOffset(Line, ColumnOffset);
text_point Point = {LineIndex + 1, ColumnIndex + 1};
Editor->EditState.Cursor = OffsetFromTextPoint(Editor->Text.String, Editor->Lines, Point);
CursorHasBeenModified = true;
Editor->DropdownActive = false;
}
if(Signal.PressedRight)
{
Editor->DropdownActive = true;
Editor->DropdownP = UI_MouseP();
Editor->DropdownTransition = 0;
}
//- sixten: update eventual text point extents
if(CursorHasBeenModified)
{
text_point Point = TextPointFromOffset(Editor->Text.String, Editor->EditState.Cursor);
if(Editor->LastTextPoint.Line == Point.Line)
{
Editor->LastTextPoint = Point;
}
else
{
Editor->LastTextPoint.Line = Point.Line;
Editor->LastTextPoint.Column = Max(Editor->LastTextPoint.Column, Point.Column);
}
}
}
ReleaseScratch(Scratch);
}
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