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73 lines
1.6 KiB
Go
73 lines
1.6 KiB
Go
package context
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import (
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"github.com/jesseduffield/gocui"
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"github.com/jesseduffield/lazygit/pkg/gui/types"
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"github.com/jesseduffield/lazygit/pkg/utils"
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)
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const HORIZONTAL_SCROLL_FACTOR = 3
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type ViewTrait struct {
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view *gocui.View
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}
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var _ types.IViewTrait = &ViewTrait{}
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func NewViewTrait(view *gocui.View) *ViewTrait {
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return &ViewTrait{view: view}
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}
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func (self *ViewTrait) FocusPoint(yIdx int) {
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self.view.FocusPoint(self.view.OriginX(), yIdx)
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}
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func (self *ViewTrait) SetViewPortContent(content string) {
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_, y := self.view.Origin()
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self.view.OverwriteLines(y, content)
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}
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func (self *ViewTrait) SetContent(content string) {
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self.view.SetContent(content)
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}
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func (self *ViewTrait) SetFooter(value string) {
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self.view.Footer = value
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}
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func (self *ViewTrait) SetOriginX(value int) {
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_ = self.view.SetOriginX(value)
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}
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// tells us the bounds of line indexes shown in the view currently
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func (self *ViewTrait) ViewPortYBounds() (int, int) {
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_, min := self.view.Origin()
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max := self.view.InnerHeight() + 1
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return min, max
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}
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func (self *ViewTrait) ScrollLeft() {
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newOriginX := utils.Max(self.view.OriginX()-self.view.InnerWidth()/HORIZONTAL_SCROLL_FACTOR, 0)
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_ = self.view.SetOriginX(newOriginX)
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}
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func (self *ViewTrait) ScrollRight() {
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_ = self.view.SetOriginX(self.view.OriginX() + self.view.InnerWidth()/HORIZONTAL_SCROLL_FACTOR)
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}
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// this returns the amount we'll scroll if we want to scroll by a page.
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func (self *ViewTrait) PageDelta() int {
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_, height := self.view.Size()
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delta := height - 1
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if delta == 0 {
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return 1
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}
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return delta
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}
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func (self *ViewTrait) SelectedLineIdx() int {
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return self.view.SelectedLineIdx()
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}
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