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Working on tab support and cursor

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This commit is contained in:
bloeys
2022-02-26 12:17:33 +04:00
parent d99b122ee5
commit a98edabc90
2 changed files with 46 additions and 15 deletions
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60
editor.go
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@ -48,8 +48,6 @@ func (e *Editor) SetCursorPos(x, y int) {
func (e *Editor) Render(drawStartPos, winSize *imgui.Vec2) {
origDrawStartPos := *drawStartPos
//Draw window
imgui.SetNextWindowPos(*drawStartPos)
imgui.SetNextWindowSize(*winSize)
@ -61,6 +59,7 @@ func (e *Editor) Render(drawStartPos, winSize *imgui.Vec2) {
//Add padding to text
drawStartPos.X += textPadding
drawStartPos.Y += textPadding
paddedDrawStartPos := *drawStartPos
//Draw lines
lineHeight := imgui.TextLineHeightWithSpacing()
@ -68,31 +67,62 @@ func (e *Editor) Render(drawStartPos, winSize *imgui.Vec2) {
linesToDraw := int(winSize.Y / lineHeight)
// println("Lines to draw:", linesToDraw)
cx := clampInt(e.MouseX-int(drawStartPos.X), 0, int(winSize.X))
cy := clampInt(e.MouseY-int(drawStartPos.Y), 0, int(winSize.Y))
clickedLine := clampInt(cy/int(lineHeight), 0, e.LineCount)
clickedCol := clampInt(cx/int(charWidth), 0, e.GetLineCharCount(clickedLine))
dl := imgui.WindowDrawList()
for i := 0; i < linesToDraw; i++ {
dl.AddText(*drawStartPos, imgui.PackedColorFromVec4(imgui.Vec4{X: 1, Y: 1, Z: 1, W: 1}), string(e.GetLine(0+i).chars))
drawStartPos.Y += lineHeight
}
cx := clampInt(e.MouseX-int(paddedDrawStartPos.X), 0, int(winSize.X))
cy := clampInt(e.MouseY-int(paddedDrawStartPos.Y), 0, int(winSize.Y))
clickedLine := clampInt(cy/int(lineHeight), 0, e.LineCount)
clickedCol := cx / int(charWidth)
fmt.Printf("line,col: %v,%v\n", clickedLine, clickedCol)
origDrawStartPos.X += textPadding
origDrawStartPos.Y += textPadding
eee := e.GetLine(clickedLine)
tabCount, tabChars := getTabs(eee, clickedCol)
maxCol := len(eee.chars) - 1
if tabCount > 0 {
maxCol += clampInt(tabCount*settings.TabSize-1, 0, math.MaxInt)
}
finalCol := clampInt(clickedCol+tabChars, 0, maxCol)
if len(eee.chars) > 0 && finalCol > 0 {
x := finalCol - tabCount*settings.TabSize
println("!!!!", len(string(eee.chars)), "; C:", string(eee.chars[x]))
}
lineX := paddedDrawStartPos.X + float32(finalCol)*charWidth
lineStart := imgui.Vec2{
X: origDrawStartPos.X + float32(clickedCol)*charWidth,
Y: origDrawStartPos.Y + float32(clickedLine)*lineHeight - lineHeight*0.25,
X: lineX,
Y: paddedDrawStartPos.Y + float32(clickedLine)*lineHeight - lineHeight*0.25,
}
lineEnd := imgui.Vec2{
X: origDrawStartPos.X + float32(clickedCol)*charWidth,
Y: origDrawStartPos.Y + float32(clickedLine)*lineHeight + lineHeight*0.75,
X: lineX,
Y: paddedDrawStartPos.Y + float32(clickedLine)*lineHeight + lineHeight*0.75,
}
dl.AddLineV(lineStart, lineEnd, imgui.PackedColorFromVec4(imgui.Vec4{Z: 0.7, W: 1}), 5)
thickness := 0.2 * charWidth
dl.AddLineV(lineStart, lineEnd, imgui.PackedColorFromVec4(imgui.Vec4{Z: 0.7, W: 1}), thickness)
}
func getTabs(l *Line, col int) (tabCount, charsToOffsetBy int) {
for i := 0; i < len(l.chars) && i < col; i++ {
if l.chars[i] == '\t' {
tabCount++
}
}
charsToOffsetBy = tabCount * settings.TabSize
if tabCount == 0 {
return tabCount, charsToOffsetBy
}
charsToRemove := col / charsToOffsetBy * settings.TabSize
charsToRemove += col % charsToOffsetBy
return tabCount, clampInt(charsToOffsetBy-charsToRemove, 0, charsToOffsetBy)
}
func (e *Editor) GetLine(lineNum int) *Line {