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package cointop
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// CurrentPage returns the current page
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func (ct *Cointop) CurrentPage() int {
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ct.debuglog("currentPage()")
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return ct.State.page + 1
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}
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// CurrentDisplayPage returns the current page in human readable format
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func (ct *Cointop) CurrentDisplayPage() int {
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ct.debuglog("currentDisplayPage()")
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return ct.State.page + 1
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}
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// TotalPages returns the number of total pages
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func (ct *Cointop) TotalPages() int {
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ct.debuglog("totalPages()")
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return ct.GetListCount() / ct.State.perPage
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}
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// TotalPagesDisplay returns the number of total pages in human readable format
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func (ct *Cointop) TotalPagesDisplay() int {
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ct.debuglog("totalPagesDisplay()")
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return ct.TotalPages() + 1
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}
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// TotalPerPage returns the number max rows per page
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func (ct *Cointop) TotalPerPage() int {
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return ct.State.perPage
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}
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// SetPage navigates to the selected page
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func (ct *Cointop) SetPage(page int) int {
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ct.debuglog("setPage()")
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if (page*ct.State.perPage) < ct.GetListCount() && page >= 0 {
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ct.State.page = page
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}
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return ct.State.page
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}
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// CursorDown moves the cursor one row down
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func (ct *Cointop) CursorDown() error {
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ct.debuglog("cursorDown()")
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if ct.Views.Table.Backing() == nil {
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return nil
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}
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// NOTE: return if already at the bottom
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if ct.IsLastRow() {
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return nil
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}
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cx, cy := ct.Views.Table.Backing().Cursor()
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if err := ct.Views.Table.Backing().SetCursor(cx, cy+1); err != nil {
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ox, oy := ct.Views.Table.Backing().Origin()
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// set origin scrolls
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if err := ct.Views.Table.Backing().SetOrigin(ox, oy+1); err != nil {
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return err
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}
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}
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ct.RowChanged()
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return nil
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}
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// CursorUp moves the cursor one row up
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func (ct *Cointop) CursorUp() error {
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ct.debuglog("cursorUp()")
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if ct.Views.Table.Backing() == nil {
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return nil
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}
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// NOTE: return if already at the top
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if ct.IsFirstRow() {
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return nil
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}
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ox, oy := ct.Views.Table.Backing().Origin()
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cx, cy := ct.Views.Table.Backing().Cursor()
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if err := ct.Views.Table.Backing().SetCursor(cx, cy-1); err != nil && oy > 0 {
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// set origin scrolls
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if err := ct.Views.Table.Backing().SetOrigin(ox, oy-1); err != nil {
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return err
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}
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}
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ct.RowChanged()
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return nil
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}
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// PageDown moves the cursor one page down
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func (ct *Cointop) PageDown() error {
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ct.debuglog("pageDown()")
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if ct.Views.Table.Backing() == nil {
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return nil
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}
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// NOTE: return if already at the bottom
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if ct.IsLastRow() {
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return nil
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}
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ox, oy := ct.Views.Table.Backing().Origin() // this is prev origin position
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cx, _ := ct.Views.Table.Backing().Cursor() // relative cursor position
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_, sy := ct.Views.Table.Backing().Size() // rows in visible view
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k := oy + sy
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l := len(ct.State.coins)
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// end of table
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if (oy + sy + sy) > l {
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k = l - sy
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}
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// select last row if next jump is out of bounds
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if k < 0 {
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k = 0
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sy = l
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}
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if err := ct.Views.Table.Backing().SetOrigin(ox, k); err != nil {
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return err
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}
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// move cursor to last line if can't scroll further
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if k == oy {
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if err := ct.Views.Table.Backing().SetCursor(cx, sy-1); err != nil {
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return err
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}
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}
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ct.RowChanged()
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return nil
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}
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// PageUp moves the cursor one page up
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func (ct *Cointop) PageUp() error {
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ct.debuglog("pageUp()")
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if ct.Views.Table.Backing() == nil {
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return nil
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}
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// NOTE: return if already at the top
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if ct.IsFirstRow() {
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return nil
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}
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ox, oy := ct.Views.Table.Backing().Origin()
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cx, _ := ct.Views.Table.Backing().Cursor() // relative cursor position
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_, sy := ct.Views.Table.Backing().Size() // rows in visible view
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k := oy - sy
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if k < 0 {
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k = 0
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}
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if err := ct.Views.Table.Backing().SetOrigin(ox, k); err != nil {
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return err
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}
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// move cursor to first line if can't scroll further
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if k == oy {
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if err := ct.Views.Table.Backing().SetCursor(cx, 0); err != nil {
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return err
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}
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}
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ct.RowChanged()
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return nil
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}
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// NavigateFirstLine moves the cursor to the first row of the table
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func (ct *Cointop) NavigateFirstLine() error {
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ct.debuglog("navigateFirstLine()")
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if ct.Views.Table.Backing() == nil {
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return nil
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}
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// NOTE: return if already at the top
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if ct.IsFirstRow() {
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return nil
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}
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ox, _ := ct.Views.Table.Backing().Origin()
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cx, _ := ct.Views.Table.Backing().Cursor()
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if err := ct.Views.Table.Backing().SetOrigin(ox, 0); err != nil {
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return err
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}
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if err := ct.Views.Table.Backing().SetCursor(cx, 0); err != nil {
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return err
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}
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ct.RowChanged()
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return nil
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}
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// NavigateLastLine moves the cursor to the last row of the table
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func (ct *Cointop) NavigateLastLine() error {
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ct.debuglog("navigateLastLine()")
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if ct.Views.Table.Backing() == nil {
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return nil
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}
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// NOTE: return if already at the bottom
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if ct.IsLastRow() {
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return nil
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}
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ox, _ := ct.Views.Table.Backing().Origin()
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cx, _ := ct.Views.Table.Backing().Cursor()
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_, sy := ct.Views.Table.Backing().Size()
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l := len(ct.State.coins)
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k := l - sy
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if err := ct.Views.Table.Backing().SetOrigin(ox, k); err != nil {
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return err
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}
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if err := ct.Views.Table.Backing().SetCursor(cx, sy-1); err != nil {
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return err
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}
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ct.RowChanged()
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return nil
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}
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// NavigatePageFirstLine moves the cursor to the visible first row of the table
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func (ct *Cointop) NavigatePageFirstLine() error {
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ct.debuglog("navigatePageFirstLine()")
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if ct.Views.Table.Backing() == nil {
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return nil
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}
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// NOTE: return if already at the correct line
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if ct.IsPageFirstLine() {
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return nil
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}
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cx, _ := ct.Views.Table.Backing().Cursor()
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if err := ct.Views.Table.Backing().SetCursor(cx, 0); err != nil {
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return err
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}
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ct.RowChanged()
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return nil
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}
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// NavigatePageMiddleLine moves the cursor to the visible middle row of the table
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func (ct *Cointop) NavigatePageMiddleLine() error {
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ct.debuglog("navigatePageMiddleLine()")
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if ct.Views.Table.Backing() == nil {
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return nil
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}
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// NOTE: return if already at the correct line
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if ct.IsPageMiddleLine() {
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return nil
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}
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cx, _ := ct.Views.Table.Backing().Cursor()
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_, sy := ct.Views.Table.Backing().Size()
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if err := ct.Views.Table.Backing().SetCursor(cx, (sy/2)-1); err != nil {
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return err
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}
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ct.RowChanged()
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return nil
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}
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// NavigatePageLastLine moves the cursor to the visible last row of the table
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func (ct *Cointop) navigatePageLastLine() error {
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ct.debuglog("navigatePageLastLine()")
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if ct.Views.Table.Backing() == nil {
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return nil
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}
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// NOTE: return if already at the correct line
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if ct.IsPageLastLine() {
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return nil
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}
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cx, _ := ct.Views.Table.Backing().Cursor()
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_, sy := ct.Views.Table.Backing().Size()
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if err := ct.Views.Table.Backing().SetCursor(cx, sy-1); err != nil {
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return err
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}
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ct.RowChanged()
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return nil
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}
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// NextPage navigates to the next page
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func (ct *Cointop) NextPage() error {
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ct.debuglog("nextPage()")
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// NOTE: return if already at the last page
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if ct.IsLastPage() {
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return nil
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}
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ct.SetPage(ct.State.page + 1)
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ct.UpdateTable()
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ct.RowChanged()
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return nil
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}
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// PrevPage navigates to the previous page
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func (ct *Cointop) PrevPage() error {
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ct.debuglog("prevPage()")
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// NOTE: return if already at the first page
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if ct.IsFirstPage() {
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return nil
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}
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ct.SetPage(ct.State.page - 1)
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ct.UpdateTable()
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ct.RowChanged()
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return nil
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}
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// NextPageTop navigates to the first row of the next page
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func (ct *Cointop) nextPageTop() error {
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ct.debuglog("nextPageTop()")
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ct.NextPage()
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ct.NavigateFirstLine()
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return nil
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}
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// PrevPageTop navigates to the first row of the previous page
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func (ct *Cointop) PrevPageTop() error {
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ct.debuglog("prevtPageTop()")
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ct.PrevPage()
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ct.NavigateLastLine()
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return nil
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}
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// FirstPage navigates to the first page
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func (ct *Cointop) FirstPage() error {
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ct.debuglog("firstPage()")
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// NOTE: return if already at the first page
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if ct.IsFirstPage() {
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return nil
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}
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ct.State.page = 0
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ct.UpdateTable()
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ct.RowChanged()
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return nil
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}
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// LastPage navigates to the last page
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func (ct *Cointop) LastPage() error {
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ct.debuglog("lastPage()")
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// NOTE: return if already at the last page
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if ct.IsLastPage() {
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return nil
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}
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ct.State.page = ct.GetListCount() / ct.State.perPage
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ct.UpdateTable()
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ct.RowChanged()
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return nil
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}
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// IsFirstRow returns true if cursor is on first row
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func (ct *Cointop) IsFirstRow() bool {
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ct.debuglog("isFirstRow()")
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if ct.Views.Table.Backing() == nil {
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return false
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}
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_, y := ct.Views.Table.Backing().Origin()
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_, cy := ct.Views.Table.Backing().Cursor()
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return (cy + y) == 0
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}
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// IsLastRow returns true if cursor is on last row
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func (ct *Cointop) IsLastRow() bool {
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ct.debuglog("isLastRow()")
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if ct.Views.Table.Backing() == nil {
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return false
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}
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_, y := ct.Views.Table.Backing().Origin()
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_, cy := ct.Views.Table.Backing().Cursor()
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numRows := len(ct.State.coins) - 1
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return (cy + y + 1) > numRows
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}
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// IsFirstPage returns true if cursor is on the first page
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func (ct *Cointop) IsFirstPage() bool {
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ct.debuglog("isFirstPage()")
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return ct.State.page == 0
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}
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// IsLastPage returns true if cursor is on the last page
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func (ct *Cointop) IsLastPage() bool {
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ct.debuglog("isLastPage()")
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return ct.State.page == ct.TotalPages()-1
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}
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// IsPageFirstLine returns true if the cursor is on the visible first row
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func (ct *Cointop) IsPageFirstLine() bool {
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ct.debuglog("isPageFirstLine()")
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if ct.Views.Table.Backing() == nil {
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return false
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}
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|
|
_, cy := ct.Views.Table.Backing().Cursor()
|
|
|
|
return cy == 0
|
|
|
|
}
|
|
|
|
|
|
|
|
// IsPageMiddleLine returns true if the cursor is on the visible middle row
|
|
|
|
func (ct *Cointop) IsPageMiddleLine() bool {
|
|
|
|
ct.debuglog("isPageMiddleLine()")
|
|
|
|
if ct.Views.Table.Backing() == nil {
|
|
|
|
return false
|
|
|
|
}
|
|
|
|
|
|
|
|
_, cy := ct.Views.Table.Backing().Cursor()
|
|
|
|
_, sy := ct.Views.Table.Backing().Size()
|
|
|
|
return (sy/2)-1 == cy
|
|
|
|
}
|
|
|
|
|
|
|
|
// IsPageLastLine returns true if the cursor is on the visible last row
|
|
|
|
func (ct *Cointop) IsPageLastLine() bool {
|
|
|
|
ct.debuglog("isPageLastLine()")
|
|
|
|
|
|
|
|
_, cy := ct.Views.Table.Backing().Cursor()
|
|
|
|
_, sy := ct.Views.Table.Backing().Size()
|
|
|
|
return cy+1 == sy
|
|
|
|
}
|
|
|
|
|
|
|
|
// GoToPageRowIndex navigates to the selected row index of the page
|
|
|
|
func (ct *Cointop) GoToPageRowIndex(idx int) error {
|
|
|
|
ct.debuglog("goToPageRowIndex()")
|
|
|
|
if ct.Views.Table.Backing() == nil {
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
cx, _ := ct.Views.Table.Backing().Cursor()
|
|
|
|
if err := ct.Views.Table.Backing().SetCursor(cx, idx); err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
ct.RowChanged()
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
|
|
|
// GoToGlobalIndex navigates to the selected row index of all page rows
|
|
|
|
func (ct *Cointop) GoToGlobalIndex(idx int) error {
|
|
|
|
ct.debuglog("goToGlobalIndex()")
|
|
|
|
perpage := ct.TotalPerPage()
|
|
|
|
atpage := idx / perpage
|
|
|
|
ct.SetPage(atpage)
|
|
|
|
rowIndex := (idx % perpage)
|
|
|
|
ct.HighlightRow(rowIndex)
|
|
|
|
ct.UpdateTable()
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
|
|
|
// HighlightRow highlights the row at index
|
|
|
|
func (ct *Cointop) HighlightRow(idx int) error {
|
|
|
|
ct.debuglog("highlightRow()")
|
|
|
|
if ct.Views.Table.Backing() == nil {
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
|
|
|
ct.Views.Table.Backing().SetOrigin(0, 0)
|
|
|
|
ct.Views.Table.Backing().SetCursor(0, 0)
|
|
|
|
ox, _ := ct.Views.Table.Backing().Origin()
|
|
|
|
cx, _ := ct.Views.Table.Backing().Cursor()
|
|
|
|
_, sy := ct.Views.Table.Backing().Size()
|
|
|
|
perpage := ct.TotalPerPage()
|
|
|
|
p := idx % perpage
|
|
|
|
oy := (p / sy) * sy
|
|
|
|
cy := p % sy
|
|
|
|
if oy > 0 {
|
|
|
|
ct.Views.Table.Backing().SetOrigin(ox, oy)
|
|
|
|
}
|
|
|
|
ct.Views.Table.Backing().SetCursor(cx, cy)
|
|
|
|
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
|
|
|
// CursorDownOrNextPage moves the cursor down one row or goes to the next page if cursor is on the last row
|
|
|
|
func (ct *Cointop) CursorDownOrNextPage() error {
|
|
|
|
ct.debuglog("CursorDownOrNextPage()")
|
|
|
|
if ct.IsLastRow() {
|
|
|
|
if ct.IsLastPage() {
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
|
|
|
if err := ct.nextPageTop(); err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
|
|
|
if err := ct.CursorDown(); err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
|
|
|
// CursorUpOrPreviousPage moves the cursor up one row or goes to the previous page if cursor is on the first row
|
|
|
|
func (ct *Cointop) CursorUpOrPreviousPage() error {
|
|
|
|
ct.debuglog("CursorUpOrPreviousPage()")
|
|
|
|
if ct.IsFirstRow() {
|
|
|
|
if ct.IsFirstPage() {
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
|
|
|
if err := ct.PrevPageTop(); err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
|
|
|
if err := ct.CursorUp(); err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
|
|
|
|
return nil
|
|
|
|
}
|