/
layout.go
209 lines (162 loc) · 3.99 KB
/
layout.go
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package gui
import (
"fmt"
"github.com/common-nighthawk/go-figure"
"github.com/jroimartin/gocui"
)
// Layout is called for every screen re-render e.g. when the screen is resized.
func (gui *Gui) layout(g *gocui.Gui) error {
maxX, maxY := gui.g.Size()
if v, err := gui.g.SetView("banner", 0, 0, int(0.19*float32(maxX)), int(0.14*float32(maxY))); err != nil {
if err != gocui.ErrUnknownView {
return err
}
myFigure := figure.NewFigure("dblab", "", true)
figure.Write(v, myFigure)
}
if v, err := gui.g.SetView("tables", 0, int(0.16*float32(maxY)), int(0.19*float32(maxX)), int(0.95*float32(maxY))); err != nil {
if err != gocui.ErrUnknownView {
return err
}
if err := gui.showTables(); err != nil {
return err
}
v.Title = "Tables"
}
if v, err := gui.g.SetView("query", int(0.2*float32(maxX)), 0, maxX-1, int(0.24*float32(maxY))); err != nil {
if err != gocui.ErrUnknownView {
return err
}
v.Title = "SQL Query"
v.Editable = true
v.Wrap = true
if _, err := gui.g.SetCurrentView("query"); err != nil {
return err
}
}
if v, err := gui.g.SetView("structure", int(0.2*float32(maxX)), int(0.25*float32(maxY)), maxX-1, int(0.95*float32(maxY))); err != nil {
if err != gocui.ErrUnknownView {
return err
}
v.Title = "Structure"
fmt.Fprintln(v, "Please select a table!")
}
if v, err := gui.g.SetView("rows", int(0.2*float32(maxX)), int(0.25*float32(maxY)), maxX-1, int(0.95*float32(maxY))); err != nil {
if err != gocui.ErrUnknownView {
return err
}
v.Title = "Rows"
fmt.Fprintln(v, "Type the sql query above. Press Ctrl-c to quit.")
}
return nil
}
func moveDown(g *gocui.Gui, v *gocui.View) error {
if v == nil || v.Name() == "query" {
_, err := g.SetCurrentView("rows")
if err != nil {
return err
}
_, err = g.SetViewOnTop("rows")
if err != nil {
return err
}
g.Highlight = true
g.Cursor = true
g.SelFgColor = gocui.ColorGreen
return err
}
_, err := g.SetCurrentView("view")
return err
}
func nextView(from, to string) func(g *gocui.Gui, v *gocui.View) error {
return func(g *gocui.Gui, v *gocui.View) error {
if v == nil || v.Name() == from {
_, err := g.SetCurrentView(to)
g.Highlight = true
g.Cursor = true
g.SelFgColor = gocui.ColorGreen
return err
}
_, err := g.SetCurrentView(from)
return err
}
}
func setViewOnTop(g *gocui.Gui, v *gocui.View) error {
if v == nil || v.Name() == "rows" {
return switchView(g, "structure")
}
if v == nil || v.Name() == "structure" {
return switchView(g, "rows")
}
return nil
}
func switchView(g *gocui.Gui, v string) error {
if _, err := g.SetViewOnTop(v); err != nil {
return err
}
if _, err := g.SetCurrentView(v); err != nil {
return err
}
g.Highlight = true
g.Cursor = true
g.SelFgColor = gocui.ColorGreen
return nil
}
func cursorUp(g *gocui.Gui, v *gocui.View) error {
if v != nil {
ox, oy := v.Origin()
cx, cy := v.Cursor()
if err := v.SetCursor(cx, cy-1); err != nil && oy > 0 {
if err := v.SetOrigin(ox, oy-1); err != nil {
return err
}
}
}
return nil
}
func cursorDown(g *gocui.Gui, v *gocui.View) error {
if v != nil {
cx, cy := v.Cursor()
l, err := v.Line(cy + 1)
if err != nil {
return err
}
if l != "" {
if err := v.SetCursor(cx, cy+1); err != nil {
ox, oy := v.Origin()
if err := v.SetOrigin(ox, oy+1); err != nil {
return err
}
}
}
}
return nil
}
func cursorRight(g *gocui.Gui, v *gocui.View) error {
if v != nil {
ox, oy := v.Origin()
cx, cy := v.Cursor()
if err := v.SetCursor(cx+1, cy); err != nil {
if err := v.SetOrigin(ox+1, oy); err != nil {
return err
}
}
}
return nil
}
func cursorLeft(g *gocui.Gui, v *gocui.View) error {
if v != nil {
ox, oy := v.Origin()
cx, cy := v.Cursor()
if err := v.SetCursor(cx-1, cy); err != nil && ox > 0 {
if err := v.SetOrigin(ox-1, oy); err != nil {
return err
}
}
}
return nil
}
// quit is called to end the gui app.
func quit(g *gocui.Gui, v *gocui.View) error {
return gocui.ErrQuit
}