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Add configurable mouse wheel scroll lines (fixes #871) #872

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Merged
merged 2 commits into from
Oct 7, 2025
Merged

Add configurable mouse wheel scroll lines (fixes #871) #872

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394cc46
Add configurable mouse wheel scroll lines (fixes #871)
noborus Oct 7, 2025
bb21388
Rename WheelScrollLines to VScrollLines and move to General section
noborus Oct 7, 2025
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2 changes: 2 additions & 0 deletions ov-less.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -40,6 +40,8 @@ General:
WrapMode: true
ColumnDelimiter: ","
MarkStyleWidth: 1
# HScrollWidth: 10%
# VScrollLines: 2
Prompt:
Normal:
# ShowFilename: true # Show the filename.
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2 changes: 2 additions & 0 deletions ov.yaml
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Expand Up @@ -39,6 +39,8 @@ General:
WrapMode: true
ColumnDelimiter: ","
MarkStyleWidth: 1
# HScrollWidth: 10%
# VScrollLines: 2
Prompt:
Normal:
# ShowFilename: true # Show the filename.
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6 changes: 6 additions & 0 deletions oviewer/general.go
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Expand Up @@ -42,6 +42,8 @@ type General struct {
HScrollWidth *string
// HScrollWidthNum is the horizontal scroll width as an integer (number of columns).
HScrollWidthNum *int
// VScrollLines is the number of lines to scroll with the mouse wheel.
VScrollLines *int
// RulerType is the ruler type (0: none, 1: relative, 2: absolute).
RulerType *RulerType
// AlternateRows alternately style rows.
Expand Down Expand Up @@ -190,6 +192,10 @@ func (g *General) SetHScrollWidthNum(num int) {
g.HScrollWidthNum = &num
}

func (g *General) SetVScrollLines(num int) {
g.VScrollLines = &num
}

// SetRulerType sets the ruler type.
func (g *General) SetRulerType(rtype RulerType) {
g.RulerType = &rtype
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10 changes: 5 additions & 5 deletions oviewer/mouse.go
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Expand Up @@ -29,9 +29,8 @@ const (
)

var (
WheelScrollNum = 2 // WheelScrollNum is the number of lines to scroll with the mouse wheel.
ClickInterval = 500 * time.Millisecond // Double/triple click detection time
ClickDistance = 2 // Maximum allowed movement distance (in screen coordinates/cells) for double/triple click detection
ClickInterval = 500 * time.Millisecond // Double/triple click detection time
ClickDistance = 2 // Maximum allowed movement distance (in screen coordinates/cells) for double/triple click detection
)

// ClickState holds the state for click detection.
Expand Down Expand Up @@ -89,13 +88,14 @@ func (root *Root) mouseEvent(ctx context.Context, ev *tcell.EventMouse) {
// wheelUp moves the mouse wheel up.
func (root *Root) wheelUp(context.Context) {
root.setMessage("")
root.moveUp(WheelScrollNum)
root.moveUp(root.Doc.VScrollLines)
}

// wheelDown moves the mouse wheel down.
func (root *Root) wheelDown(context.Context) {
root.setMessage("")
root.moveDown(WheelScrollNum)
log.Println("vScrollLines:", root.Doc.VScrollLines)
root.moveDown(root.Doc.VScrollLines)
}

// wheelRight moves the mouse wheel right.
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6 changes: 6 additions & 0 deletions oviewer/oviewer.go
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Expand Up @@ -229,6 +229,8 @@ type RunTimeSettings struct {
HScrollWidth string
// HScrollWidthNum is the horizontal scroll width.
HScrollWidthNum int
// VScrollLines is the number of lines to scroll with the mouse wheel.
VScrollLines int
// RulerType is the ruler type (0: none, 1: relative, 2: absolute).
RulerType RulerType
// AlternateRows alternately style rows.
Expand Down Expand Up @@ -480,6 +482,7 @@ func NewRunTimeSettings() RunTimeSettings {
OVPromptConfig: NewOVPromptConfig(),
Style: NewStyle(),
StatusLine: true,
VScrollLines: 2,
}
}

Expand Down Expand Up @@ -1057,6 +1060,9 @@ func updateRunTimeSettings(src RunTimeSettings, dst General) RunTimeSettings {
if dst.HScrollWidthNum != nil {
src.HScrollWidthNum = *dst.HScrollWidthNum
}
if dst.VScrollLines != nil {
src.VScrollLines = *dst.VScrollLines
}
if dst.RulerType != nil {
src.RulerType = *dst.RulerType
}
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