func main() {
// MainWindow is a rootless widget that can contain other widgets.
// You can create as many as you want. You should drefine a name and
// a title of the window (depending on the backend, this name will
// be captured by the OS).
//
// Names are not necessary, but it is a good practice to have names,
// so this will make the identification of widgets earier (using the
// sparta.Name property).
widget.NewMainWindow("one", "Window one")
widget.NewMainWindow("two", "Window two")
// sparta.Run runs the event loop of the application backend.
sparta.Run()
}
func txEdRun(c *cmdapp.Command, args []string) {
cmd = c
openLocal(c)
title := fmt.Sprintf("%s: please wait", c.Name)
m := widget.NewMainWindow("main", title)
geo := m.Property(sparta.Geometry).(image.Rectangle)
widget.NewButton(m, "upTax", "up", image.Rect(5, 5, 5+(sparta.WidthUnit*10), 5+(3*sparta.HeightUnit/2)))
widget.NewButton(m, "val", "validate", image.Rect(10+(sparta.WidthUnit*10), 5, 10+(sparta.WidthUnit*20), 5+(3*sparta.HeightUnit/2)))
widget.NewButton(m, "upVal", "up", image.Rect(270, 5, 270+(sparta.WidthUnit*10), 5+(3*sparta.HeightUnit/2)))
widget.NewButton(m, "syn", "syn ->", image.Rect(205, 10+(3*sparta.HeightUnit/2), 205+(sparta.WidthUnit*10), 10+(6*sparta.HeightUnit/2)))
widget.NewButton(m, "move", "move ->", image.Rect(205, 15+(6*sparta.HeightUnit/2), 205+(sparta.WidthUnit*10), 15+(9*sparta.HeightUnit/2)))
l := widget.NewList(m, "taxonList", image.Rect(5, 10+(3*sparta.HeightUnit/2), 200, geo.Dy()-10))
wnd["taxonList"] = l
s := widget.NewList(m, "validList", image.Rect(210+(sparta.WidthUnit*10), 10+(3*sparta.HeightUnit/2), 405+(sparta.WidthUnit*10), geo.Dy()-10))
wnd["validList"] = s
m.Capture(sparta.Configure, txEdConf)
m.Capture(sparta.Command, txEdComm)
sparta.Block(nil)
go func() {
txEdInitList(m, l, nil, 0, true)
txEdInitList(m, s, nil, 0, false)
txEdSetCaption(m)
sparta.Unblock(nil)
}()
sparta.Run()
}
func txNavRun(c *cmdapp.Command, args []string) {
cmd = c
var db jdh.DB
if len(extDBFlag) != 0 {
openExt(c, extDBFlag, "")
db = extDB
} else {
openLocal(c)
db = localDB
}
title := fmt.Sprintf("%s: please wait", c.Name)
m := widget.NewMainWindow("main", title)
geo := m.Property(sparta.Geometry).(image.Rectangle)
widget.NewButton(m, "upTax", "up", image.Rect(5, 5, 5+(sparta.WidthUnit*10), 5+(3*sparta.HeightUnit/2)))
tx := widget.NewCanvas(m, "info", image.Rect(210, 10+(3*sparta.HeightUnit/2), geo.Dx()-10, geo.Dy()-10))
tx.SetProperty(sparta.Border, true)
tx.Capture(sparta.Expose, txNavInfoExpose)
wnd["info"] = tx
l := widget.NewList(m, "taxonList", image.Rect(5, 10+(3*sparta.HeightUnit/2), 200, geo.Dy()-10))
wnd["taxonList"] = l
m.Capture(sparta.Configure, txNavConf)
m.Capture(sparta.Command, txNavComm)
sparta.Block(nil)
go txNavInitList(m, l, db, nil, 0)
sparta.Run()
}
func spNavRun(c *cmdapp.Command, args []string) {
cmd = c
var db jdh.DB
openLocal(c)
db = localDB
title := fmt.Sprintf("%s: please wait", c.Name)
m := widget.NewMainWindow("main", title)
geo := m.Property(sparta.Geometry).(image.Rectangle)
widget.NewButton(m, "upTax", "up", image.Rect(5, 5, 5+(sparta.WidthUnit*10), 5+(3*sparta.HeightUnit/2)))
dy := geo.Dy() - 10 - (10 + (3 * sparta.HeightUnit / 2))
l := widget.NewList(m, "taxonList", image.Rect(5, 10+(3*sparta.HeightUnit/2), 200, (dy/2)+10+(3*sparta.HeightUnit/2)))
wnd["taxonList"] = l
s := widget.NewList(m, "speList", image.Rect(210, 10+(3*sparta.HeightUnit/2), 410, (dy/2)+10+(3*sparta.HeightUnit/2)))
wnd["speList"] = s
tx := widget.NewCanvas(m, "info", image.Rect(5, (dy/2)+20+(3*sparta.HeightUnit/2), geo.Dx()-10, geo.Dy()-10))
tx.SetProperty(sparta.Border, true)
tx.Capture(sparta.Expose, spNavInfoExpose)
wnd["info"] = tx
m.Capture(sparta.Configure, spNavConf)
m.Capture(sparta.Command, spNavComm)
sparta.Block(nil)
go func() {
spNavInitTaxList(m, l, db, nil, 0)
sparta.Unblock(nil)
}()
sparta.Run()
}
func trViewRun(c *cmdapp.Command, args []string) {
cmd = c
openLocal(c)
title := fmt.Sprintf("%s: please wait", c.Name)
m := widget.NewMainWindow("main", title)
geo := m.Property(sparta.Geometry).(image.Rectangle)
tv := widget.NewCanvas(m, "tree", image.Rect(0, 0, geo.Dx(), geo.Dy()))
wnd["tree"] = tv
tv.Capture(sparta.Expose, trViewExpose)
tv.Capture(sparta.KeyEv, trViewKey)
tv.Capture(sparta.Mouse, trViewMouse)
tv.Update()
m.Capture(sparta.Configure, trViewConf)
go trViewInitList(m, tv)
sparta.Run()
}
func main() {
rand.Seed(time.Now().Unix())
// The main window.
m := widget.NewMainWindow("main", "Event Window")
// Functions to capture the events.
//
// Capture close event.This event is produced when attepting to
// close a rootless widget (such as MainWindow), or when a child
// is closed.
m.Capture(sparta.CloseEv, closeFunc)
// Capture command event. This event is produced when another
// process, or a widget send a message to another widget.
m.Capture(sparta.Command, commandFunc)
// Capture configure event. This event is produced when a widget
// changes its size.
m.Capture(sparta.Configure, configureFunc)
// Capture Expose event. This event is produced when a previously
// obscured part of a widget is exposed (in some backends, other
// backends save obscured part of the widget and simply copy them
// when the widget is exposed. Expose event are also produced when
// the widget is resized (configure), and when an explicit update
// method is called.
m.Capture(sparta.Expose, exposeFunc)
// Capture Key event. This event is produced when a key in the
// keyboard is pressed or released.
m.Capture(sparta.KeyEv, keyFunc)
// Capture Mouse event. This event is produced when the mouse is
// moved, a button is pressed or released.
m.Capture(sparta.Mouse, mouseFunc)
// this helper function is used to send command events to the window.
// it will send a random number each second.
go func() {
for {
time.Sleep(10 * time.Second)
sparta.SendEvent(m, sparta.CommandEvent{Value: rand.Intn(255)})
}
}()
sparta.Run()
}
func main() {
m := widget.NewMainWindow("main", "Canvas")
// The method Property returns an interface of the asked property. If
// the widget does not process that property, it will return nil.
// sparta.Geometry is a property that indicate the dimensions (and
// position) of the widget relative to its parent.
geo := m.Property(sparta.Geometry).(image.Rectangle)
// NewCanvas creates a new drawable canvas.
sn := widget.NewCanvas(m, "sine", image.Rect(0, 0, geo.Dx()/2, geo.Dy()/2))
// The method SetProperty sets a property in the widget.
// We want that the widget have a border, so we set sparta.Border as true.
sn.SetProperty(sparta.Border, true)
// create the points for the sine function.
pts := make([]image.Point, 1000)
// set the initial values of the sine function.
sine(pts, geo.Dx()/2, geo.Dy()/2)
// sparta.Data is a property that store client defined data of a widget.
sn.SetProperty(sparta.Data, pts)
// We want to process the configure event, to update the position of
// the sine points.
sn.Capture(sparta.Configure, snConf)
// We wnat to process the expose event, to draw the content of the widget.
sn.Capture(sparta.Expose, snExpose)
// We send and update request to guarantee that the content of the
// widget will be drawn.
sn.Update()
pg := widget.NewCanvas(m, "polygon", image.Rect(geo.Dx()/2, 0, geo.Dx(), geo.Dy()/2))
pg.SetProperty(sparta.Border, true)
// We set the background of the widget to be light grey, using the
// property sparta.Background.
pg.SetProperty(sparta.Background, color.RGBA{190, 190, 190, 0})
// We set the foreground of the widget (i.e. the color used to draw
// objects to be drak grey, using the property sparta.Foreground.
pg.SetProperty(sparta.Foreground, color.RGBA{90, 90, 90, 0})
poly := []widget.Polygon{
widget.Polygon{Pt: make([]image.Point, len(polyPts))},
widget.Polygon{Pt: make([]image.Point, len(polyPts)), Fill: true},
}
setPoly(poly, geo.Dx()-(geo.Dx()/2), geo.Dy()/2)
pg.SetProperty(sparta.Data, poly)
pg.Capture(sparta.Configure, pgConf)
pg.Capture(sparta.Expose, pgExpose)
pg.Update()
ob := widget.NewCanvas(m, "objects", image.Rect(0, geo.Dy()/2, geo.Dx()/2, geo.Dy()))
ob.SetProperty(sparta.Border, true)
objs := &objData{
l1: make([]image.Point, 2),
l2: make([]image.Point, 2),
arc: widget.Arc{
Angle2: math.Pi * 2,
Fill: true,
},
}
setObj(objs, geo.Dx()/2, geo.Dy()-(geo.Dy()/2))
ob.SetProperty(sparta.Data, objs)
ob.Capture(sparta.Configure, obConf)
ob.Capture(sparta.Expose, obExpose)
ob.Update()
tx := widget.NewCanvas(m, "poem", image.Rect(geo.Dx()/2, geo.Dy()/2, geo.Dx(), geo.Dy()))
tx.SetProperty(sparta.Border, true)
// In sparta the size of a text glyph is given by sparta.HeightUnit
// and sparta.WidthUnit.
txtData := &pageData{
pos: 0,
page: (geo.Dy() - (geo.Dy() / 2)) / sparta.HeightUnit,
}
tx.SetProperty(sparta.Data, txtData)
tx.Capture(sparta.Configure, txConf)
tx.Capture(sparta.Expose, txExpose)
// To navigate the text we also capture the mouse and the keyboard.
tx.Capture(sparta.Mouse, txMouse)
tx.Capture(sparta.KeyEv, txKey)
tx.Update()
// We want to capture the mainwindow configure event so if the
// mainWindow changes its size, we can update the size and position
// of the all other widgets.
m.Capture(sparta.Configure, mConf)
sparta.Run()
}