Working on Layout Stuff

layout_flags.go

@@ -43,23 +43,56 @@ const (
 	LFAlignV = LayoutFlag(0x1100)
 )
 
+const (
+	LFAlignAll = LayoutFlag(0x1111)
+)
+
 const (
 	LFAlignTopLeft     = LayoutFlag(LFAlignHLeft | LFAlignVTop)
+	LFAlignTop         = LayoutFlag(LFAlignHCenter | LFAlignVTop)
+	LFAlignTopRight    = LayoutFlag(LFAlignHRight | LFAlignVTop)
+	LFAlignLeft        = LayoutFlag(LFAlignHLeft | LFAlignVCenter)
 	LFAlignCenter      = LayoutFlag(LFAlignHCenter | LFAlignVCenter)
+	LFAlignRight       = LayoutFlag(LFAlignHRight | LFAlignVCenter)
+	LFAlignBottomLeft  = LayoutFlag(LFAlignHLeft | LFAlignVBottom)
+	LFAlignBottom      = LayoutFlag(LFAlignHCenter | LFAlignVBottom)
+	LFAlignBottomRight = LayoutFlag(LFAlignHRight | LFAlignVBottom)
+)
+
+// Size Flags
+// The default should be MinW, MinH
+const (
+	_           = LayoutFlag(iota << 4)
+	LFSizeFullW // 00010000
+	LFSizeFullH // 00100000
+	LFSizeFull  // 00110000
+
+	_           = LayoutFlag(iota << 6)
+	LFSizeWrapW // 01000000
+	LFSizeWrapH // 10000000
+	LFSizeWrap  // 11000000
+
+	LFSizeAll = LayoutFlag(0x11110000)
 )
 
 func (f LayoutFlag) Add(fl LayoutFlag) { f |= fl }
+func (f LayoutFlag) ClearAll() {
+	f.ClearAllAlign()
+	f.ClearAllSize()
+}
+
+// Alignment Manipulation
 func (f LayoutFlag) AlignH() LayoutFlag { return f & LFAlignH }
 func (f LayoutFlag) AlignV() LayoutFlag { return f & LFAlignV }
 func (f LayoutFlag) IsAlignH() bool     { return f.AlignH() > 0 }
 func (f LayoutFlag) IsAlignV() bool     { return f.AlignV() > 0 }
 func (f LayoutFlag) SetTopLeft() {
-	f.ClearAll()
+	f.ClearAllAlign()
 	f = LFAlignHLeft | LFAlignVTop
 }
 
 func (f LayoutFlag) SetBottomCenter() {
-	f.ClearAll()
+	f.ClearAllAlign()
 	f = LFAlignHCenter | LFAlignVBottom
 }
 
@@ -72,8 +105,26 @@ func (f LayoutFlag) ClearAlignV() {
 	f = f &^ LFAlignV
 	f.Add(LFAlignVCenter)
 }
-
+func (f LayoutFlag) ClearAllAlign() {
-func (f LayoutFlag) ClearAll() {
 	f.ClearAlignH()
 	f.ClearAlignV()
 }
+
+// Size Manipulation
+func (f LayoutFlag) SetSizeWrap() {
+	f.ClearAllSize()
+	f = f | LFSizeWrap
+}
+func (f LayoutFlag) SetSizeFull() {
+	f.ClearAllSize()
+	f = f | LFSizeFull
+}
+func (f LayoutFlag) ClearAllSize() {
+	f = f &^ LFSizeAll
+}
+func (f LayoutFlag) ClearSizeW() {
+	f = f &^ (LFSizeFullW | LFSizeWrapW)
+}
+func (f LayoutFlag) ClearSizeH() {
+	f = f &^ (LFSizeFullH | LFSizeWrapH)
+}

size.go

@@ -0,0 +1,27 @@
+/*
+Copyright © Brian Buller <brian@bullercodeworks.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+package widgets
+
+type Size struct {
+	W, H  int
+	flags LayoutFlag
+}

wdgt_absolute_layout.go

@@ -35,10 +35,11 @@ type AbsoluteLayout struct {
 	bordered      bool
 	widgets       []Widget
 	wCoords       map[Widget]Coord
-	wAnchor      map[Widget]AbsoluteAnchor
+	wAnchor       map[Widget]LayoutFlag
 	wManualSizes  map[Widget]Coord
+	wDynamicSizes map[Widget]LayoutFlag
 
-	defAnchor AbsoluteAnchor
+	defAnchor LayoutFlag
 
 	active    bool
 	visible   bool
@@ -52,21 +53,6 @@ type AbsoluteLayout struct {
 	logger func(string)
 }
 
-type AbsoluteAnchor int
-
-const (
-	AnchorTL = AbsoluteAnchor(iota) // widget starts at <startX>, <startY>
-	AnchorT                         // widget starts at <middleX>-<widget width/2>, <startY>
-	AnchorTR                        // widget starts at <endX>, <startY>
-	AnchorL                         // widget starts at <startX>, <middleY>
-	AnchorC                         // widget starts at <middleX>-<widget width/2>, <middleY>-<widget height/2>
-	AnchorR                         // widget starts at <endX>-<widget width>, <middleY>-<widget height/2>
-	AnchorBL                        // widget starts at <startX>, <endY>-<widget height>
-	AnchorB                         // widget starts at <middleX>-<widget width/2>, <endY>-<widget height>
-	AnchorBR                        // widget starts at <endX>-<widget width>, <endY>-<widget height>
-	AnchorErr
-)
-
 var _ Widget = (*AbsoluteLayout)(nil)
 
 func NewAbsoluteLayout(id string, s tcell.Style) *AbsoluteLayout {
@@ -79,11 +65,12 @@ func (w *AbsoluteLayout) Init(id string, s tcell.Style) {
 	w.id = id
 	w.style = s
 	w.visible = true
-	w.defAnchor = AnchorTL
+	w.defAnchor = LFAlignCenter
 	w.keyMap = BlankKeyMap()
 	w.wCoords = make(map[Widget]Coord)
-	w.wAnchor = make(map[Widget]AbsoluteAnchor)
+	w.wAnchor = make(map[Widget]LayoutFlag)
 	w.wManualSizes = make(map[Widget]Coord)
+	w.wDynamicSizes = make(map[Widget]LayoutFlag)
 	w.focusable = true
 }
 
@@ -207,7 +194,7 @@ func (w *AbsoluteLayout) MinH() int {
 // Add a widget at x/y
 func (w *AbsoluteLayout) Add(n Widget, pos Coord) { w.AddAnchored(n, pos, w.defAnchor) }
 
-func (w *AbsoluteLayout) AddAnchored(n Widget, pos Coord, anchor AbsoluteAnchor) {
+func (w *AbsoluteLayout) AddAnchored(n Widget, pos Coord, anchor LayoutFlag) {
 	w.widgets = append(w.widgets, n)
 	w.wCoords[n] = pos
 	w.wAnchor[n] = anchor
@@ -220,12 +207,7 @@ func (w *AbsoluteLayout) Clear() {
 	w.wCoords = make(map[Widget]Coord)
 }
 
-func (w *AbsoluteLayout) SetDefaultAnchor(d AbsoluteAnchor) {
+func (w *AbsoluteLayout) SetDefaultAnchor(d LayoutFlag) { w.defAnchor = d }
-	if d < 0 || d > AnchorErr {
-		d = AnchorTL
-	}
-	w.defAnchor = d
-}
 
 func (w *AbsoluteLayout) SetLogger(l func(string)) { w.logger = l }
 func (w *AbsoluteLayout) Log(txt string) {
@@ -238,11 +220,26 @@ func (w *AbsoluteLayout) SetBordered(b bool) { w.bordered = b }
 
 func (w *AbsoluteLayout) updateWidgetLayouts() {
 	// In an Absolute Layout, widgets are given a definite position and anchor.
-	// The anchor is a side of the layout (see AbsoluteAnchor type)
+	// The anchor is a side of the layout (see LayoutFlag type)
+
+	// Process:
+	// 1. Update pos of all widgets
+	// 2. Update manually sized widgets
+	// 3. Update dynamically sized widgets
 	for _, wd := range w.widgets {
 		w.updateWidgetPos(wd)
+	}
+	for wd := range w.wManualSizes {
 		w.updateWidgetSize(wd)
 	}
+	for wd := range w.wDynamicSizes {
+		w.updateWidgetSize(wd)
+	}
+}
+
+// Set a widgets position relative to the layout
+func (w *AbsoluteLayout) updateWidgetPos(wd Widget) {
+	wd.SetPos(w.getRelPos(wd))
 }
 
 func (w *AbsoluteLayout) updateWidgetSize(wd Widget) {
@@ -274,21 +271,13 @@ func (w *AbsoluteLayout) updateWidgetSize(wd Widget) {
 	}
 }
 
-// Set a widgets position relative to the layout
-func (w *AbsoluteLayout) updateWidgetPos(wd Widget) {
-	wd.SetPos(w.getRelPos(wd))
-}
-
 // Manually set the size of a widget, the Layout won't override it
 func (w *AbsoluteLayout) SetWidgetSize(wd Widget, sz Coord)              { w.wManualSizes[wd] = sz }
-
+func (w *AbsoluteLayout) SetDynamicWidgetSize(wd Widget, flg LayoutFlag) { w.wDynamicSizes[wd] = flg }
-func (w *AbsoluteLayout) ShrinkWrap(wd Widget) {
-	w.SetWidgetSize(wd, Coord{X: wd.MinW(), Y: wd.MinH()})
-}
 
 func (w *AbsoluteLayout) getRelPos(wd Widget) Coord {
 	var p Coord
-	var a AbsoluteAnchor
+	var a LayoutFlag
 	var ok bool
 	if p, ok = w.wCoords[wd]; !ok {
 		// Default to top-left corner
@@ -306,32 +295,32 @@ func (w *AbsoluteLayout) getRelPos(wd Widget) Coord {
 	}
 	midX, midY := (w.w / 2), (w.h / 2)
 	switch a {
-	case AnchorTL:
+	case LFAlignTopLeft:
 		return p.Add(Coord{X: leftX, Y: topY})
 
-	case AnchorT:
+	case LFAlignTop:
 		return p.Add(Coord{X: midX - (wd.GetW() / 2), Y: topY})
 
-	case AnchorTR:
+	case LFAlignTopRight:
 		return p.Add(Coord{X: rightX - wd.GetW(), Y: topY})
 
-	case AnchorL:
+	case LFAlignLeft:
 		return p.Add(Coord{X: leftX, Y: midY - (wd.GetH() / 2)})
 
-	case AnchorC:
+	case LFAlignCenter:
 		return p.Add(Coord{X: midX - (wd.GetW() / 2), Y: midY - (wd.GetH() / 2)})
 
-	case AnchorR:
+	case LFAlignRight:
 		return p.Add(Coord{X: rightX - wd.GetW(), Y: midY - (wd.GetH() / 2)})
 
-	case AnchorBR:
+	case LFAlignBottomLeft:
-		return p.Add(Coord{X: rightX - wd.GetW(), Y: bottomY - wd.GetH()})
+		return p.Add(Coord{X: leftX, Y: bottomY - wd.GetH()})
 
-	case AnchorB:
+	case LFAlignBottom:
 		return p.Add(Coord{X: midX - (wd.GetW() / 2), Y: bottomY - wd.GetH()})
 
-	case AnchorBL:
+	case LFAlignBottomRight:
-		return p.Add(Coord{X: leftX, Y: bottomY - wd.GetH()})
+		return p.Add(Coord{X: rightX - wd.GetW(), Y: bottomY - wd.GetH()})
 
 	}
 	return p
@@ -341,3 +330,55 @@ func (w *AbsoluteLayout) getAbsPos(wd Widget) Coord {
 	rel := w.getRelPos(wd)
 	return rel.Add(Coord{X: w.x, Y: w.y})
 }
+
+func (w *AbsoluteLayout) DeleteIndex(idx int) {
+	if idx < len(w.widgets) {
+		p := w.widgets[idx]
+		w.widgets = append(w.widgets[:idx], w.widgets[idx+1:]...)
+		delete(w.wCoords, p)
+		delete(w.wAnchor, p)
+	}
+}
+func (w *AbsoluteLayout) Delete(n Widget) {
+	for i := 0; i < len(w.widgets); i++ {
+		if w.widgets[i] == n {
+			w.DeleteIndex(i)
+			return
+		}
+	}
+}
+func (w *AbsoluteLayout) IndexOf(n Widget) int {
+	for i := range w.widgets {
+		if w.widgets[i] == n {
+			return i
+		}
+	}
+	return -1
+}
+
+func (w *AbsoluteLayout) ActivateWidget(n Widget) {
+	for i := range w.widgets {
+		w.widgets[i].SetActive(w.widgets[i] == n)
+	}
+}
+
+func (w *AbsoluteLayout) FindById(id string) Widget {
+	for i := range w.widgets {
+		if w.widgets[i].Id() == id {
+			return w.widgets[i]
+		}
+	}
+	return nil
+}
+
+func (w *AbsoluteLayout) Replace(n, with Widget) {
+	idx := w.IndexOf(n)
+	if idx == -1 {
+		// 'n' isn't in layout. Bail out.
+		return
+	}
+	coords := w.wCoords[n]
+	anchor := w.wAnchor[n]
+	w.Delete(n)
+	w.AddAnchored(with, coords, anchor)
+}

wdgt_linear_layout.go

@@ -328,6 +328,14 @@ func (w *LinearLayout) IndexOf(n Widget) int {
 	return -1
 }
 
+func (w *LinearLayout) FindById(id string) Widget {
+	for i := range w.widgets {
+		if w.widgets[i].Id() == id {
+			return w.widgets[i]
+		}
+	}
+	return nil
+}
 func (w *LinearLayout) Contains(n Widget) bool {
 	return w.IndexOf(n) >= 0
 }
@@ -344,6 +352,13 @@ func (w *LinearLayout) Replace(n, with Widget) {
 	w.layoutFlags[with], w.layoutWeights[with] = pFlags, pWeight
 }
 
+func (w *LinearLayout) AddAll(n Widget, more ...Widget) {
+	w.Add(n)
+	for i := range more {
+		w.Add(more[i])
+	}
+}
+
 func (w *LinearLayout) Add(n Widget) {
 	if w.Contains(n) {
 		// If the widget is already in the layout, move it to the end

wdgt_searcher.go

@@ -47,6 +47,7 @@ type Searcher struct {
 	disableBorder bool
 
 	selectFunc   func(idx int, s string) bool
+	onChange     func(idx int, s string) bool
 	hideOnSelect bool
 	logger       func(string, ...any)
 
@@ -116,11 +117,16 @@ func (w *Searcher) HandleKey(ev *tcell.EventKey) bool {
 	if !w.active {
 		return false
 	}
+	sel := w.cursor
 	b1, b2 := w.keyMap.Handle(ev), w.customKeyMap.Handle(ev)
-	if b1 || b2 {
+	var ret bool
-		return true
+	if !b1 && !b2 {
+		ret = w.search.HandleKey(ev)
 	}
-	return w.search.HandleKey(ev)
+	if w.cursor != sel && w.onChange != nil {
+		w.onChange(w.cursor, w.filteredData[w.cursor])
+	}
+	return b1 || b2 || ret
 }
 
 func (w *Searcher) handleKeyUp(ev *tcell.EventKey) bool {
@@ -209,11 +215,11 @@ func (w *Searcher) Draw(screen tcell.Screen) {
 		} else {
 			wh.BorderFilled(w.x, w.y, w.x+w.w, w.y+w.h, wh.BRD_CSIMPLE, dStyle, screen)
 		}
-	} else if len(w.title) > 0 {
-		// TODO: Output the label
 	}
-	w.GetPos().DrawOffset(w.search, screen)
+	//w.GetPos().DrawOffset(w.search, screen)
 	x, y := w.x+1, w.y+2
+	w.search.SetPos(Coord{X: w.x + 1, Y: w.y + 1})
+	w.search.Draw(screen)
 	var stIdx int
 	if w.cursor > w.h/2 {
 		stIdx = w.cursor - (w.h / 2)
@@ -285,7 +291,6 @@ func (w *Searcher) MinH() int {
 func (w *Searcher) SetHideOnSelect(t bool) { w.hideOnSelect = t }
 func (w *Searcher) SetTitle(ttl string)    { w.title = ttl }
 func (w *Searcher) SetData(data []string) {
-	// w.data = data
 	w.data = data
 	w.filteredData = data
 	w.updateFilter()
@@ -318,22 +323,31 @@ func (w *Searcher) updateFilter() {
 			return
 		}
 	}
+	// If we're here, then the selected value changed
 	if w.cursor > len(w.filteredData) {
 		w.cursor = len(w.filteredData) - 1
+		w.doChange()
 		return
 	}
 	w.cursor = 0
+	w.doChange()
 }
 
 func (w *Searcher) SelectedValue() string { return w.filteredData[w.cursor] }
 func (w *Searcher) SelectedIndex() int    { return w.cursor }
 
-func (w *Searcher) SetSearchValue(val string) {
+func (w *Searcher) SetSearchValue(val string) { w.search.SetValue(val) }
-	w.search.SetValue(val)
-}
 
-func (w *Searcher) SetSelectFunc(f func(idx int, s string) bool) {
+func (w *Searcher) SetSelectFunc(f func(idx int, s string) bool) { w.selectFunc = f }
-	w.selectFunc = f
+func (w *Searcher) SetOnChange(f func(idx int, s string) bool)   { w.onChange = f }
+func (w *Searcher) doChange() {
+	l := len(w.filteredData)
+	if w.onChange == nil || l == 0 {
+		return
+	}
+	if w.cursor < l {
+		w.onChange(w.cursor, w.filteredData[w.cursor])
+	}
 }
 
 func (w *Searcher) ClearSearch() {