func newTransition(x, y float64) *transition {
return &transition{
Rect: geometry.NewRect(x-TransitionWidth/2, y-TransitionHeight/2,
TransitionWidth, TransitionHeight),
id: util.GenUUID(),
}
}
func (g *group) updateBounds(move bool) {
if g.model == nil {
return
}
var w, h float64
x0, y0, x1, y1 := detectBounds(g.model.Items())
if !g.folded {
w, h = (x1-x0)+2*GroupMargin, (y1-y0)+2*GroupMargin
k := math.Ceil(w / GridDefaultGap)
w = k * GridDefaultGap
k = math.Ceil(h / GridDefaultGap)
h = k * GridDefaultGap
}
fw, fh := g.getFoldedSize()
if w < fw {
w = fw
}
if h < fh {
h = fh
}
if move {
x, y := x0-GroupMargin, y0-GroupMargin
g.Rect = geometry.NewRect(x, y, w, h)
} else {
g.Rect.Resize(w, h)
}
}
func newControlPoint(x float64, y float64, modified bool) *controlPoint {
return &controlPoint{
geometry.NewRect(
x-ControlPointWidth/2,
y-ControlPointHeight/2,
ControlPointWidth, ControlPointHeight),
modified,
}
}
func constructTransition(model *Transition) *transition {
t := &transition{
Rect: geometry.NewRect(model.X, model.Y, TransitionWidth, TransitionHeight),
id: model.Id,
horizontal: model.Horizontal,
label: model.Label,
kind: model.Kind,
}
if t.horizontal {
t.Rect.Rotate(t.horizontal)
}
return t
}
func (g *group) Copy() item {
gNew := newGroup()
/*
items := make(map[item]bool, len(g.model.places)+
len(g.model.transitions)+len(g.model.groups))
for _, p := range g.model.places {
items[p] = true
}
for _, t := range g.model.transitions {
items[t] = true
}
for _, g := range g.model.groups {
items[g] = true
}
clonemap := group.model.cloneItems(items)
*/
gNew.Rect = geometry.NewRect(g.X(), g.Y(), 0, 0)
gNew.model = g.model
gNew.label = g.label
gNew.parent = g.parent
gNew.folded = g.folded
return item(gNew)
}
func (c *Ctrl) handleEvents() {
go func() {
var x0, y0 float64
var focused *vertex
for {
switch ev := (<-c.events).(type) {
case *stopEvent:
return
case *keyEvent:
if c.Layers.Length < 1 {
continue
}
c.handleKeyEvent(ev)
case *mouseEvent:
if c.Layers.Length < 1 {
continue
}
x, y := c.WindowCoordsToRelativeGlobal(ev.x, ev.y)
switch ev.kind {
case EventMouseHover:
active := c.Active()
if active == nil {
continue
}
v, found := active.findV(x, y)
var text string
if found {
text = dioid.Gd{G: v.G(), D: v.D()}.String()
}
if text != c.VertexText {
c.VertexText = text
qml.Changed(c, &c.VertexText)
}
case EventMousePress:
active := c.Active()
if active == nil {
continue
}
x0, y0 = x, y
v, found := active.findV(x, y)
if c.ModifierKeyShift && !found {
active.deselectAll()
v := active.placeV(x, y)
active.selectV(v)
focused = v
} else if !found {
if !c.ModifierKeyControl {
active.deselectAll()
active.update()
}
active.util.min = &geometry.Point{x, y}
} else {
focused = v
x0, y0 = v.X, v.Y
if len(active.selected) > 1 {
if v.isSelected() && c.ModifierKeyControl {
active.deselectV(v)
} else if c.ModifierKeyControl {
active.selectV(v)
} else if !v.isSelected() {
active.deselectAll()
active.selectV(v)
}
} else if !c.ModifierKeyControl {
active.deselectAll()
active.selectV(v)
} else {
active.selectV(v)
}
active.update()
}
case EventMouseMove:
active := c.Active()
if active == nil {
continue
}
dx, dy := x-x0, y-y0
x0, y0 = x, y
if focused != nil {
active.util.kind = UtilNone
active.util.max = nil
//active.placeV(x, y)
for v := range active.selected {
v.shift(dx, dy)
}
active.update()
} else {
active.util.kind = UtilRect
active.util.max = &geometry.Point{x, y}
dx := active.util.max.X - active.util.min.X
dy := active.util.max.Y - active.util.min.Y
var rect *geometry.Rect
if dx == 0 || dy == 0 {
continue
}
w, h := math.Abs(dx), math.Abs(dy)
if dx < 0 && dy < 0 {
rect = geometry.NewRect(
active.util.max.X,
active.util.max.Y,
w, h,
)
} else if dx < 0 /* && dy > 0 */ {
rect = geometry.NewRect(
active.util.max.X,
active.util.max.Y-h,
w, h,
)
} else if dx > 0 && dy < 0 {
rect = geometry.NewRect(
active.util.max.X-w,
active.util.max.Y,
w, h,
)
} else /* dx > 0 && dy > 0 */ {
rect = geometry.NewRect(
active.util.min.X,
active.util.min.Y,
w, h,
)
}
for _, v := range active.defined {
if v.bound().Intersect(rect) {
active.selectV(v)
} else {
active.deselectV(v)
}
}
for _, v := range active.temporary {
if v.bound().Intersect(rect) {
active.selectV(v)
} else {
active.deselectV(v)
}
}
active.update()
}
case EventMouseRelease:
active := c.Active()
if active == nil {
continue
}
for v := range active.selected {
v.align()
}
focused = nil
active.util.kind = UtilNone
active.update()
}
default:
log.Println("Event not supported")
}
}
}()
}
func (v *vertex) bound() *geometry.Rect {
return geometry.NewRect(v.X-PointRadius, v.Y-PointRadius, 2*PointRadius, 2*PointRadius)
}
func (tg *teg) Construct(model *Teg) {
tg.id = model.Id
submodels := make(map[string]*teg, len(model.Groups))
madePlaces := make(map[string]*place, 256)
for _, g := range model.Groups {
gNew := newGroup()
gNew.id = g.Id
gNew.label = g.Label
gNew.folded = g.Folded
gNew.parent = tg
sub, ok := submodels[g.Model.Id]
if !ok {
sub = newTeg()
sub.Construct(g.Model)
sub.parent = tg
submodels[g.Model.Id] = sub
}
gNew.model = sub
gNew.Rect = geometry.NewRect(g.X, g.Y, 0, 0)
for _, t := range g.Inputs {
tNew := constructTransition(t)
proxId, ok := g.Iostate[t.Id]
if !ok {
panic(errors.New("group constructing: iostate broken"))
}
tNew.group = gNew
tNew.proxy = gNew.model.findById(proxId).(*transition)
tNew.parent = tg
for _, p := range t.In {
pNew, ok := madePlaces[p.Id]
if !ok {
pNew = constructPlace(p)
pNew.parent = tg
madePlaces[p.Id] = pNew
tg.places = append(tg.places, pNew)
}
pNew.out = tNew
tNew.in = append(tNew.in, pNew)
if p.OutControl != nil {
pNew.outControl = newControlPoint(p.OutControl.X, p.OutControl.Y, p.OutControl.Modified)
}
pNew.refineControls()
}
for _, p := range t.Out {
pInner := gNew.model.findById(p.Id).(*place)
tNew.out = append(tNew.out, pInner)
}
tNew.refineSize()
gNew.inputs = append(gNew.inputs, tNew)
}
for _, t := range g.Outputs {
tNew := constructTransition(t)
proxId := g.Iostate[t.Id]
tNew.group = gNew
tNew.proxy = gNew.model.findById(proxId).(*transition)
tNew.parent = tg
for _, p := range t.Out {
pNew, ok := madePlaces[p.Id]
if !ok {
pNew = constructPlace(p)
pNew.parent = tg
madePlaces[p.Id] = pNew
tg.places = append(tg.places, pNew)
}
pNew.in = tNew
tNew.out = append(tNew.out, pNew)
if p.InControl != nil {
pNew.inControl = newControlPoint(p.InControl.X, p.InControl.Y, p.InControl.Modified)
}
pNew.refineControls()
}
for _, p := range t.In {
pInner := gNew.model.findById(p.Id).(*place)
tNew.in = append(tNew.in, pInner)
}
tNew.refineSize()
gNew.outputs = append(gNew.outputs, tNew)
}
gNew.iostate = make(map[*transition]*transition, len(gNew.inputs)+len(gNew.outputs))
for _, t := range gNew.inputs {
if t.proxy != nil {
gNew.iostate[t.proxy] = t
}
}
for _, t := range gNew.outputs {
if t.proxy != nil {
gNew.iostate[t.proxy] = t
}
}
tg.groups = append(tg.groups, gNew)
gNew.updateBounds(false)
gNew.updateIO()
gNew.adjustIO()
gNew.Align()
}
for _, t := range model.Transitions {
tNew := constructTransition(t)
tNew.parent = tg
for _, p := range t.In {
pNew, ok := madePlaces[p.Id]
if !ok {
pNew = constructPlace(p)
pNew.parent = tg
madePlaces[p.Id] = pNew
tg.places = append(tg.places, pNew)
}
pNew.out = tNew
tNew.in = append(tNew.in, pNew)
if p.OutControl != nil {
pNew.outControl = newControlPoint(p.OutControl.X, p.OutControl.Y, p.OutControl.Modified)
}
pNew.refineControls()
}
for _, p := range t.Out {
pNew, ok := madePlaces[p.Id]
if !ok {
pNew = constructPlace(p)
pNew.parent = tg
madePlaces[p.Id] = pNew
tg.places = append(tg.places, pNew)
}
pNew.in = tNew
tNew.out = append(tNew.out, pNew)
if p.InControl != nil {
pNew.inControl = newControlPoint(p.InControl.X, p.InControl.Y, p.InControl.Modified)
}
pNew.refineControls()
}
tNew.refineSize()
tg.transitions = append(tg.transitions, tNew)
}
for _, p := range model.Places {
_, ok := madePlaces[p.Id]
if !ok {
pNew := constructPlace(p)
pNew.parent = tg
tg.places = append(tg.places, pNew)
}
}
}
func (c *Ctrl) handleEvents() {
go func() {
var x0, y0 float64
var focused interface{}
var copied bool
for {
switch ev := (<-c.events).(type) {
case *stopEvent:
return
case *keyEvent:
c.handleKeyEvent(ev)
case *mouseEvent:
x, y := c.WindowCoordsToRelativeGlobal(ev.x, ev.y)
switch ev.kind {
case EventMousePress:
x0, y0 = x, y
smth, found := c.model.findDrawable(x, y)
if c.ModifierKeyAlt {
if !found {
c.model.deselectAll()
c.model.update()
} else if _, cp := smth.(*controlPoint); !cp {
focused = smth
c.model.deselectAll()
c.model.selectItem(smth.(item))
c.model.update()
}
c.model.util.min = &geometry.Point{x, y}
} else if c.ModifierKeyShift && !found {
var it item
c.model.deselectAll()
if c.ModifierKeyControl {
it = c.model.addTransition(x, y)
} else {
it = c.model.addPlace(x, y)
}
c.model.selectItem(it)
focused = it
copied = true // prevent copy of item
} else if !found {
if !c.ModifierKeyControl {
c.model.deselectAll()
c.model.update()
}
c.model.util.min = &geometry.Point{x, y}
} else {
focused = smth
if control, ok := smth.(*controlPoint); ok {
control.modified = true
} else {
it := smth.(item)
//x0, y0 = it.Center().X, it.Center().Y
if len(c.model.selected) > 1 {
if c.model.isSelected(it) && c.ModifierKeyControl {
c.model.deselectItem(it)
} else if c.ModifierKeyControl {
c.model.selectItem(it)
} else if !c.model.isSelected(it) {
c.model.deselectAll()
c.model.selectItem(it)
}
} else if !c.ModifierKeyControl {
c.model.deselectAll()
c.model.selectItem(it)
} else {
c.model.selectItem(it)
}
}
c.model.update()
}
case EventMouseMove:
dx, dy := x-x0, y-y0
x0, y0 = x, y
if c.ModifierKeyAlt {
c.model.util.kind = UtilStroke
c.model.util.max = &geometry.Point{x, y}
if focused != nil {
smth, found := c.model.findDrawable(x, y)
if _, cp := smth.(*controlPoint); found && !cp {
c.model.selectItem(smth.(item))
} else if _, cp := focused.(*controlPoint); !found && !cp {
c.model.deselectAll()
c.model.selectItem(focused.(item))
}
}
c.model.update()
} else if c.ModifierKeyShift && !copied {
copied = true
clones := c.model.cloneItems(c.model.selected)
c.model.deselectAll()
for _, v := range clones {
c.model.selectItem(v)
}
c.model.update()
} else if focused != nil {
c.model.util.kind = UtilNone
c.model.util.max = nil
if point, cp := focused.(*controlPoint); cp {
point.Move(x, y)
c.model.update()
continue
}
toOrder := make(map[*transition]bool, len(c.model.transitions))
for it := range c.model.selected {
if p, ok := it.(*place); ok {
p.Shift(dx, dy)
if p.in != nil {
toOrder[p.in] = true
}
if p.out != nil {
toOrder[p.out] = true
}
} else if t, ok := it.(*transition); ok {
if t.proxy == nil {
t.Shift(dx, dy)
toOrder[t] = true
}
} else {
it.Shift(dx, dy)
}
}
for t := range toOrder {
t.OrderArcs(true)
t.OrderArcs(false)
}
c.model.update()
} else {
c.model.util.kind = UtilRect
c.model.util.max = &geometry.Point{x, y}
dx := c.model.util.max.X - c.model.util.min.X
dy := c.model.util.max.Y - c.model.util.min.Y
var rect *geometry.Rect
if dx == 0 || dy == 0 {
continue
}
w, h := math.Abs(dx), math.Abs(dy)
if dx < 0 && dy < 0 {
rect = geometry.NewRect(
c.model.util.max.X,
c.model.util.max.Y,
w, h,
)
} else if dx < 0 /* && dy > 0 */ {
rect = geometry.NewRect(
c.model.util.max.X,
c.model.util.max.Y-h,
w, h,
)
} else if dx > 0 && dy < 0 {
rect = geometry.NewRect(
c.model.util.max.X-w,
c.model.util.max.Y,
w, h,
)
} else /* dx > 0 && dy > 0 */ {
rect = geometry.NewRect(
c.model.util.min.X,
c.model.util.min.Y,
w, h,
)
}
for _, p := range c.model.places {
if p.Bound().Intersect(rect) {
c.model.selectItem(p)
} else {
c.model.deselectItem(p)
}
}
for _, t := range c.model.transitions {
if t.Bound().Intersect(rect) {
c.model.selectItem(t)
} else {
c.model.deselectItem(t)
}
}
for _, g := range c.model.groups {
if g.Bound().Intersect(rect) {
c.model.selectItem(g)
for _, t := range g.inputs {
c.model.selectItem(t)
}
for _, t := range g.outputs {
c.model.selectItem(t)
}
} else {
c.model.deselectItem(g)
for _, t := range g.inputs {
c.model.deselectItem(t)
}
for _, t := range g.outputs {
c.model.deselectItem(t)
}
}
}
c.model.update()
}
case EventMouseRelease:
if c.ModifierKeyAlt && c.model.util.kind == UtilStroke {
if it, ok := c.model.findDrawable(x, y); focused != nil && focused != it && ok {
if p, ok := it.(*place); ok && p.in == nil {
if t, ok := focused.(*transition); ok {
t.link(p, false)
} else if p2, ok := focused.(*place); ok && p2.out == nil {
// p -- p2, new transition between
pCenter, p2Center := p.Center(), p2.Center()
t := c.model.addTransition((pCenter.X+p2Center.X)/2,
(pCenter.Y+p2Center.Y)/2)
t.link(p2, true)
t.link(p, false)
} else {
log.Println("Unable to link smth to place")
}
} else if t, ok := it.(*transition); ok {
if p, ok := focused.(*place); ok {
t.link(p, true)
} else if t2, ok := focused.(*transition); ok {
// t -- t2, new place between
tCenter, t2Center := t.Center(), t2.Center()
p := c.model.addPlace((tCenter.X+t2Center.X)/2,
(tCenter.Y+t2Center.Y)/2)
t2.link(p, false)
t.link(p, true)
} else {
log.Println("Unable to link smth to transition")
}
}
c.model.deselectAll()
} else if focused == nil && !ok {
// stroking the void, cut the links
start := c.model.util.min
end := c.model.util.max
unlink := func(t *transition, p *place, inbound bool, i int) bool {
if inbound {
control := p.outControl.Center()
borderP := p.BorderPoint(control.X, control.Y, BorderPlaceDist)
borderT := t.BorderPoint(true, i)
if geometry.CheckSegmentsCrossing(start, end, borderP, control) ||
geometry.CheckSegmentsCrossing(start, end, control, borderT) {
return true
}
} else {
control := p.inControl.Center()
borderP := p.BorderPoint(control.X, control.Y, BorderPlaceTipDist)
borderT := t.BorderPoint(false, i)
if geometry.CheckSegmentsCrossing(start, end, borderP, control) ||
geometry.CheckSegmentsCrossing(start, end, control, borderT) {
return true
}
}
return false
}
var toUnlink map[*place]bool
for _, t := range c.model.transitions {
toUnlink = make(map[*place]bool, len(t.in))
for i, p := range t.in {
if unlink(t, p, true, i) {
toUnlink[p] = true
}
}
for p := range toUnlink {
t.unlink(p, true, false)
}
toUnlink = make(map[*place]bool, len(t.out))
for i, p := range t.out {
if unlink(t, p, false, i) {
toUnlink[p] = true
}
}
for p := range toUnlink {
t.unlink(p, false, false)
}
}
grps := make(map[*group]bool, len(c.model.groups))
for _, g := range c.model.groups {
for _, t := range g.inputs {
toUnlink = make(map[*place]bool, len(t.in))
for i, p := range t.in {
if unlink(t, p, true, i) {
toUnlink[p] = true
}
}
for p := range toUnlink {
grps[g] = true
t.unlink(p, true, true)
}
}
for _, t := range g.outputs {
toUnlink = make(map[*place]bool, len(t.out))
for i, p := range t.out {
if unlink(t, p, false, i) {
toUnlink[p] = true
}
}
for p := range toUnlink {
grps[g] = true
t.unlink(p, false, true)
}
}
}
for g := range grps {
g.updateIO()
g.adjustIO()
}
}
} else {
toAlign := make(map[item]bool, len(c.model.selected))
for it := range c.model.selected {
if _, ok := it.(*group); ok {
continue
}
toAlign[it] = true
}
c.alignItems(toAlign)
}
focused = nil
copied = false
c.model.util.kind = UtilNone
c.model.update()
case EventMouseDoubleClick:
if c.ModifierKeyControl || c.ModifierKeyShift {
continue
}
if focused != nil {
c.model.deselectAll()
c.model.selectItem(focused.(item))
if t, ok := focused.(*transition); ok {
t.rotate()
if t.proxy != nil {
t.group.adjustIO()
}
c.model.update()
}
if p, ok := focused.(*place); ok {
if c.ModifierKeyAlt {
p.timer++
} else {
p.counter++
}
c.model.update()
}
if g, ok := focused.(*group); ok {
if g.folded {
c.model.unfoldGroup(g)
} else {
c.model.foldGroup(g)
}
c.model.update()
}
}
}
default:
log.Println("Event not supported")
}
}
}()
}