108 lines
2.5 KiB
Go
108 lines
2.5 KiB
Go
/*
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* Copyright (c) 2013-2021 Utkan Güngördü <utkan@freeconsole.org>
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* Copyright (c) 2021-2023 Piotr Grabowski
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package gomicsv
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import (
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"log"
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"time"
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"github.com/gotk3/gotk3/gdk"
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)
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type CursorsState struct {
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Current Cursor
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Cache CursorCache
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LastMoved time.Time
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Visible bool
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ForceVisible bool
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}
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type Cursor int
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const (
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cursorNone Cursor = iota
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cursorDefault
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cursorGrabbing
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)
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type CursorCache = map[Cursor]*gdk.Cursor
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func (cursor *CursorsState) init() {
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cursor.Cache = CursorCache{
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cursorNone: loadCursor("none"),
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cursorDefault: loadCursor("default"),
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cursorGrabbing: loadCursor("grabbing"),
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}
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cursor.Current = cursorDefault
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}
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func (cursor *CursorsState) reset() {
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cursor.LastMoved = time.Now()
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cursor.Visible = false
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cursor.ForceVisible = false
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}
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func (app *App) setCursor(cursor Cursor) {
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win, err := app.W.ImageViewport.GetWindow()
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if err != nil {
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log.Panicf("getting Image Viewport's Window: %v", err)
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}
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if cursor != cursorNone {
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app.S.Cursor.Current = cursor
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}
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win.SetCursor(app.S.Cursor.Cache[cursor])
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}
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func (app *App) hideCursor() {
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app.setCursor(cursorNone)
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app.S.Cursor.Visible = false
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}
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func (app *App) showCursor() {
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app.setCursor(app.S.Cursor.Current)
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app.S.Cursor.Visible = true
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}
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func (app *App) updateCursorVisibility() bool {
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shouldBeHidden := false
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if !app.S.DragScroll.InProgress && app.Config.HideIdleCursor && !app.S.Cursor.ForceVisible {
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shouldBeHidden = time.Since(app.S.Cursor.LastMoved).Seconds() > 1
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}
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if shouldBeHidden && app.S.Cursor.Visible {
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app.hideCursor()
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} else if !shouldBeHidden && !app.S.Cursor.Visible {
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app.showCursor()
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}
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return true
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}
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func loadCursor(name string) *gdk.Cursor {
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disp, err := gdk.DisplayGetDefault()
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if err != nil {
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log.Panicf("getting default display: %v", err)
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}
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c, err := gdk.CursorNewFromName(disp, name)
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if err != nil {
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log.Panicf("creating cursor: %v", err)
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}
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return c
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}
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