commit 6b5e6e89966cd1c2e6455a1a922343dedb7f9c9e Author: EnumDev Date: Tue Jun 3 16:59:39 2025 +0300 Initial Commit diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..5c95367 --- /dev/null +++ b/.gitignore @@ -0,0 +1,5 @@ +# Build directory +/build/ + +# IDE files +.idea diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..782710c --- /dev/null +++ b/LICENSE @@ -0,0 +1,21 @@ +MIT License + +Copyright (c) 2025 EnumDev + +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. \ No newline at end of file diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..f8eb227 --- /dev/null +++ b/Makefile @@ -0,0 +1,25 @@ +# Installation paths +PREFIX ?= /usr/local +BINDIR ?= $(PREFIX)/bin +SYSCONFDIR := $(PREFIX)/etc + +# Compilers and tools +GO ?= $(shell which go) + +build: + mkdir -p build + cd src/; $(GO) build -ldflags "-w" -o ../build/typer + +install: build/typer + # Create directories + install -dm755 $(DESTDIR)$(BINDIR) + # Install files + install -Dm755 build/typer $(DESTDIR)$(BINDIR)/typer + +uninstall: + rm $(DESTDIR)$(BINDIR)/typer + +clean: + rm -r build/ + +.PHONY: build \ No newline at end of file diff --git a/src/buffer.go b/src/buffer.go new file mode 100644 index 0000000..fe35e0d --- /dev/null +++ b/src/buffer.go @@ -0,0 +1,87 @@ +package main + +import ( + "fmt" + "os" + "path/filepath" + "strings" +) + +type Buffer struct { + Id int + Name string + Contents string + LoadFunc func(buffer *Buffer) error + SaveFunc func(buffer *Buffer) error +} + +var Buffers = make(map[int]*Buffer) +var LastBufferId int + +func CreateFileBuffer(filename string) (*Buffer, error) { + // Replace tilde with home directory + if filename != "~" && strings.HasPrefix(filename, "~/") { + homedir, err := os.UserHomeDir() + + if err != nil { + return nil, err + } + + filename = filepath.Join(homedir, filename[2:]) + } + + stat, err := os.Stat(filename) + if err != nil { + return nil, err + } + + if !stat.Mode().IsRegular() { + return nil, fmt.Errorf("%s is not a regular file", filename) + } + + buffer := Buffer{ + Id: LastBufferId + 1, + Name: filename, + Contents: "", + LoadFunc: func(buffer *Buffer) error { + content, err := os.ReadFile(filename) + if err != nil { + return err + } + + buffer.Contents = string(content) + return nil + }, + SaveFunc: func(buffer *Buffer) error { + err := os.WriteFile(filename, []byte(buffer.Contents), 0644) + if err != nil { + return err + } + + return nil + }, + } + + err = buffer.LoadFunc(&buffer) + if err != nil { + return nil, err + } + + Buffers[buffer.Id] = &buffer + + return &buffer, nil +} + +func CreateBuffer(bufferName string) *Buffer { + buffer := Buffer{ + Id: LastBufferId + 1, + Name: bufferName, + Contents: "\n", + LoadFunc: func(buffer *Buffer) error { return nil }, + SaveFunc: func(buffer *Buffer) error { return nil }, + } + + Buffers[buffer.Id] = &buffer + + return &buffer +} diff --git a/src/go.mod b/src/go.mod new file mode 100644 index 0000000..9398d53 --- /dev/null +++ b/src/go.mod @@ -0,0 +1,13 @@ +module Typer + +go 1.24 + +require ( + github.com/gdamore/encoding v1.0.1 // indirect + github.com/gdamore/tcell v1.4.0 // indirect + github.com/lucasb-eyer/go-colorful v1.2.0 // indirect + github.com/mattn/go-runewidth v0.0.16 // indirect + github.com/rivo/uniseg v0.4.7 // indirect + golang.org/x/sys v0.33.0 // indirect + golang.org/x/text v0.25.0 // indirect +) diff --git a/src/go.sum b/src/go.sum new file mode 100644 index 0000000..56259f9 --- /dev/null +++ b/src/go.sum @@ -0,0 +1,59 @@ +github.com/gdamore/encoding v1.0.0 h1:+7OoQ1Bc6eTm5niUzBa0Ctsh6JbMW6Ra+YNuAtDBdko= +github.com/gdamore/encoding v1.0.0/go.mod h1:alR0ol34c49FCSBLjhosxzcPHQbf2trDkoo5dl+VrEg= +github.com/gdamore/encoding v1.0.1 h1:YzKZckdBL6jVt2Gc+5p82qhrGiqMdG/eNs6Wy0u3Uhw= +github.com/gdamore/encoding v1.0.1/go.mod h1:0Z0cMFinngz9kS1QfMjCP8TY7em3bZYeeklsSDPivEo= +github.com/gdamore/tcell v1.4.0 h1:vUnHwJRvcPQa3tzi+0QI4U9JINXYJlOz9yiaiPQ2wMU= +github.com/gdamore/tcell v1.4.0/go.mod h1:vxEiSDZdW3L+Uhjii9c3375IlDmR05bzxY404ZVSMo0= +github.com/lucasb-eyer/go-colorful v1.0.3 h1:QIbQXiugsb+q10B+MI+7DI1oQLdmnep86tWFlaaUAac= +github.com/lucasb-eyer/go-colorful v1.0.3/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0= +github.com/lucasb-eyer/go-colorful v1.2.0 h1:1nnpGOrhyZZuNyfu1QjKiUICQ74+3FNCN69Aj6K7nkY= +github.com/lucasb-eyer/go-colorful v1.2.0/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0= +github.com/mattn/go-runewidth v0.0.7 h1:Ei8KR0497xHyKJPAv59M1dkC+rOZCMBJ+t3fZ+twI54= +github.com/mattn/go-runewidth v0.0.7/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI= +github.com/mattn/go-runewidth v0.0.16 h1:E5ScNMtiwvlvB5paMFdw9p4kSQzbXFikJ5SQO6TULQc= +github.com/mattn/go-runewidth v0.0.16/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w= +github.com/rivo/uniseg v0.2.0 h1:S1pD9weZBuJdFmowNwbpi7BJ8TNftyUImj/0WQi72jY= +github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc= +github.com/rivo/uniseg v0.4.7 h1:WUdvkW8uEhrYfLC4ZzdpI2ztxP1I582+49Oc5Mq64VQ= +github.com/rivo/uniseg v0.4.7/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88= +github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY= +golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= +golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc= +golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4= +golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs= +golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= +golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg= +golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c= +golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs= +golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= +golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= +golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= +golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= +golang.org/x/sys v0.0.0-20190626150813-e07cf5db2756 h1:9nuHUbU8dRnRRfj9KjWUVrJeoexdbeMjttk6Oh1rD10= +golang.org/x/sys v0.0.0-20190626150813-e07cf5db2756/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f h1:v4INt8xihDGvnrfjMDVXGxw9wrfxYyCjk0KbXjhR55s= +golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.33.0 h1:q3i8TbbEz+JRD9ywIRlyRAQbM0qF7hu24q3teo2hbuw= +golang.org/x/sys v0.33.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k= +golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo= +golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8= +golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k= +golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg= +golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ= +golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= +golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ= +golang.org/x/text v0.3.8 h1:nAL+RVCQ9uMn3vJZbV+MRnydTJFPf8qqY42YiA6MrqY= +golang.org/x/text v0.3.8/go.mod h1:E6s5w1FMmriuDzIBO73fBruAKo1PCIq6d2Q6DHfQ8WQ= +golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8= +golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU= +golang.org/x/text v0.25.0 h1:qVyWApTSYLk/drJRO5mDlNYskwQznZmkpV2c8q9zls4= +golang.org/x/text v0.25.0/go.mod h1:WEdwpYrmk1qmdHvhkSTNPm3app7v4rsT8F2UD6+VHIA= +golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= +golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= +golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc= +golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU= +golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= diff --git a/src/line_index.go b/src/line_index.go new file mode 100644 index 0000000..741f1cb --- /dev/null +++ b/src/line_index.go @@ -0,0 +1,26 @@ +package main + +import ( + "github.com/gdamore/tcell" + "strconv" + "strings" +) + +func drawLineIndex(window *Window) { + screen := window.screen + buffer := window.textArea.CurrentBuffer + + lineIndexStyle := tcell.StyleDefault.Foreground(tcell.ColorDimGray).Background(tcell.Color236) + + _, sizeY := screen.Size() + + y := 0 + if window.ShowTopMenu { + y = 1 + } + + for lineIndex := 1; lineIndex <= strings.Count(buffer.Contents, "\n") && lineIndex < sizeY; lineIndex++ { + drawText(screen, 0, y, 3, y, lineIndexStyle, strconv.Itoa(lineIndex)+". ") + y++ + } +} diff --git a/src/main.go b/src/main.go new file mode 100644 index 0000000..f252ff2 --- /dev/null +++ b/src/main.go @@ -0,0 +1,16 @@ +package main + +import ( + "log" +) + +func main() { + window, err := CreateWindow(nil) + if err != nil { + log.Fatalf("Failed to create window: %v", err) + } + + for window.screen != nil { + window.Draw() + } +} diff --git a/src/message_bar.go b/src/message_bar.go new file mode 100644 index 0000000..0ad56c0 --- /dev/null +++ b/src/message_bar.go @@ -0,0 +1,53 @@ +package main + +import ( + "github.com/gdamore/tcell" + "time" +) + +type TyperMessage struct { + timestamp int64 + message string +} + +var messageLog = make([]TyperMessage, 0) + +func PrintMessage(window *Window, message string) { + messageLog = append(messageLog, TyperMessage{timestamp: time.Now().UnixMilli(), message: message}) + + err := window.screen.PostEvent(tcell.NewEventInterrupt(nil)) + if err != nil { + return + } + + go func() { + time.Sleep(5 * time.Second) + + err := window.screen.PostEvent(tcell.NewEventInterrupt(nil)) + if err != nil { + return + } + }() +} + +func drawMessageBar(window *Window) { + screen := window.screen + + messageBarStyle := tcell.StyleDefault.Foreground(tcell.ColorBlack).Background(tcell.ColorWhite) + + sizeX, sizeY := screen.Size() + + messageToPrint := "" + if len(messageLog) > 0 && time.Since(time.UnixMilli(messageLog[len(messageLog)-1].timestamp)).Seconds() < 5 { + messageToPrint = messageLog[len(messageLog)-1].message + } + + for x := 0; x < sizeX; x++ { + char := ' ' + if x < len(messageToPrint) { + char = int32(messageToPrint[x]) + } + + screen.SetContent(x, sizeY-1, char, nil, messageBarStyle) + } +} diff --git a/src/top_menu.go b/src/top_menu.go new file mode 100644 index 0000000..65526db --- /dev/null +++ b/src/top_menu.go @@ -0,0 +1,46 @@ +package main + +import ( + "github.com/gdamore/tcell" +) + +type TopMenuButton struct { + Name string +} + +var TopMenuButtons = make([]TopMenuButton, 0) + +func initTopMenu() { + // Buttons + fileButton := TopMenuButton{ + Name: "File", + } + EditButton := TopMenuButton{ + Name: "Edit", + } + Buffers := TopMenuButton{ + Name: "Buffers", + } + + // Append buttons + TopMenuButtons = append(TopMenuButtons, fileButton, EditButton, Buffers) +} + +func drawTopMenu(window *Window) { + screen := window.screen + + topMenuStyle := tcell.StyleDefault.Foreground(tcell.ColorBlack).Background(tcell.ColorWhite) + + sizeX, _ := screen.Size() + + for x := 0; x < sizeX; x++ { + screen.SetContent(x, 0, ' ', nil, topMenuStyle) + } + + currentX := 1 + for _, button := range TopMenuButtons { + drawText(screen, currentX, 0, currentX+len(button.Name), 0, topMenuStyle, button.Name) + currentX += len(button.Name) + 1 + } + +} diff --git a/src/utils.go b/src/utils.go new file mode 100644 index 0000000..869e2a3 --- /dev/null +++ b/src/utils.go @@ -0,0 +1,19 @@ +package main + +import "github.com/gdamore/tcell" + +func drawText(s tcell.Screen, x1, y1, x2, y2 int, style tcell.Style, text string) { + row := y1 + col := x1 + for _, r := range []rune(text) { + s.SetContent(col, row, r, nil, style) + col++ + if col >= x2 { + row++ + col = x1 + } + if row > y2 { + break + } + } +} diff --git a/src/window.go b/src/window.go new file mode 100644 index 0000000..1ad67e3 --- /dev/null +++ b/src/window.go @@ -0,0 +1,232 @@ +package main + +import ( + "github.com/gdamore/tcell" + "log" +) + +type Window struct { + ShowTopMenu bool + ShowLineIndex bool + + textArea TextArea + + screen tcell.Screen +} + +type TextArea struct { + CursorPos int + CurrentBuffer *Buffer +} + +func CreateWindow(initialBuffer *Buffer) (*Window, error) { + window := Window{ + ShowTopMenu: true, + ShowLineIndex: true, + + textArea: TextArea{ + CursorPos: 0, + CurrentBuffer: initialBuffer, + }, + + screen: nil, + } + + // Create empty buffer if nil + if window.textArea.CurrentBuffer == nil { + window.textArea.CurrentBuffer = CreateBuffer("New File") + } + + // Create tcell screen + screen, err := tcell.NewScreen() + if err != nil { + log.Fatalf("Failed to initialize tcell: %s", err) + } + + if err := screen.Init(); err != nil { + log.Fatalf("Failed to initialize screen: %s", err) + } + + // Set screen style + screen.SetStyle(tcell.StyleDefault.Foreground(tcell.ColorWhite).Background(tcell.Color234)) + + // Set window screen field + window.screen = screen + + // Initialize top menu + initTopMenu() + + return &window, nil +} + +func (window *Window) drawCurrentBuffer() { + buffer := window.textArea.CurrentBuffer + + x, y := 0, 0 + if window.ShowTopMenu { + y++ + } + if window.ShowLineIndex { + x += 3 + } + + width, _ := window.screen.Size() + + for _, r := range []rune(buffer.Contents) { + if x >= width || r == '\n' { + x = 0 + if window.ShowLineIndex { + x += 3 + } + y++ + } + + window.screen.SetContent(x, y, r, nil, tcell.StyleDefault.Foreground(tcell.ColorWhite).Background(tcell.Color234)) + + if r != '\n' { + x++ + } + } +} + +func (window *Window) Draw() { + // Clear screen + window.screen.Clear() + + // Draw top menu + if window.ShowTopMenu { + drawTopMenu(window) + } + + // Draw line index + if window.ShowLineIndex { + drawLineIndex(window) + } + + // Draw current buffer + if window.textArea.CurrentBuffer != nil { + window.drawCurrentBuffer() + } + + // Draw message bar + drawMessageBar(window) + + // Draw cursor + window.screen.ShowCursor(window.GetAbsoluteCursorPos()) + + // Update screen + window.screen.Show() + + // Poll event + ev := window.screen.PollEvent() + + // Process event + switch ev := ev.(type) { + case *tcell.EventResize: + window.screen.Sync() + case *tcell.EventKey: + // Navigation Keys + if ev.Key() == tcell.KeyRight { + window.SetCursorPos(window.textArea.CursorPos + 1) + } else if ev.Key() == tcell.KeyLeft { + window.SetCursorPos(window.textArea.CursorPos - 1) + } else if ev.Key() == tcell.KeyUp { + x, y := window.GetCursorPos2D() + window.SetCursorPos2D(x, y-1) + } else if ev.Key() == tcell.KeyDown { + x, y := window.GetCursorPos2D() + window.SetCursorPos2D(x, y+1) + } + + // Exit key + if ev.Key() == tcell.KeyCtrlC { + window.Close() + } + } +} + +func (window *Window) Close() { + window.screen.Fini() + window.screen = nil +} + +func (window *Window) GetTextAreaDimensions() (int, int, int, int) { + x1, y1 := 0, 0 + x2, y2 := window.screen.Size() + + if window.ShowTopMenu { + y1++ + } + + if window.ShowLineIndex { + x1 += 3 + } + + return x1, y1, x2, y2 +} + +func (window *Window) GetAbsoluteCursorPos() (int, int) { + cursorX, cursorY := window.GetCursorPos2D() + + x1, y1, _, _ := window.GetTextAreaDimensions() + cursorX += x1 + cursorY += y1 + + return cursorX, cursorY +} + +func (window *Window) GetCursorPos2D() (int, int) { + cursorX := 0 + cursorY := 0 + + for i := 0; i < window.textArea.CursorPos; i++ { + char := window.textArea.CurrentBuffer.Contents[i] + if char == '\n' { + cursorY++ + cursorX = 0 + } else { + cursorX++ + } + } + + return cursorX, cursorY +} + +func (window *Window) SetCursorPos(position int) { + window.textArea.CursorPos = position + + if window.textArea.CursorPos < 0 { + window.textArea.CursorPos = 0 + } + + if window.textArea.CursorPos > len(window.textArea.CurrentBuffer.Contents)-1 { + window.textArea.CursorPos = len(window.textArea.CurrentBuffer.Contents) - 1 + } +} + +func (window *Window) SetCursorPos2D(x, y int) { + x = max(x, 0) + y = max(y, 0) + + lines := make([]struct { + charIndex int + str string + }, 0) + + var str string + for i, char := range window.textArea.CurrentBuffer.Contents { + str += string(char) + if char == '\n' { + lines = append(lines, struct { + charIndex int + str string + }{charIndex: i - len(str) + 1, str: str}) + str = "" + } + } + + y = min(y, len(lines)-1) + x = min(x, len(lines[y].str)-1) + + window.SetCursorPos(lines[y].charIndex + x) +}