Fixed some visual bugs

src/platform/gui_platform.nim

@@ -410,6 +410,8 @@ proc drawNode(builder: UINodeBuilder, platform: GuiPlatform, node: UINode, offse
   if builder.useInvalidation and not force and node.lastChange < builder.frameIndex:
     return
 
+  node.lastRenderTime = builder.frameIndex
+
   if node.flags.any &{UINodeFlag.FillBackground, DrawBorder, DrawText}:
     platform.drawnNodes.add node
 

src/platform/terminal_platform.nim

@@ -418,6 +418,8 @@ proc drawNode(builder: UINodeBuilder, platform: TerminalPlatform, node: UINode,
   if builder.useInvalidation and not force and node.lastChange < builder.frameIndex:
     return
 
+  node.lastRenderTime = builder.frameIndex
+
   if node.flags.any &{UINodeFlag.FillBackground, DrawText}:
     force = true
 

src/platform/widget_builder_text_document.nim

@@ -64,6 +64,8 @@ proc renderLine*(
   builder.panel(flagsInner + LayoutVertical, y = y, pivot = pivot, userId = newSecondaryId(parentId, lineId)):
     let lineWidth = currentNode.bounds.w
 
+    var subLine: UINode = nil
+
     var start = 0
     var startRune = 0.RuneCount
     var lastPartXW: float32 = 0
@@ -73,6 +75,7 @@ proc renderLine*(
     while partIndex < line.parts.len:
 
       builder.panel(flagsInner + LayoutHorizontal):
+        subLine = currentNode
 
         if lineNumberText.len > 0:
           builder.panel(&{UINodeFlag.FillBackground, FillY}, w = lineNumberTotalWidth, backgroundColor = backgroundColor):
@@ -174,11 +177,6 @@ proc renderLine*(
           partIndex += 1
           subLinePartIndex += 1
 
-        # cursor after latest char
-        for curs in cursors:
-          if curs == lineOriginal.len:
-            result.add (currentNode, "", rect(lastPartXW, 0, builder.charWidth, builder.textHeight), (line.index, curs))
-
         # Fill rest of line with background
         builder.panel(&{FillX, FillY, FillBackground}, backgroundColor = backgroundColor):
           capture line, currentNode:
@@ -195,6 +193,11 @@ proc renderLine*(
               self.selection = (currentSelection.first, (line.index, self.document.lineLength(line.index)))
               self.markDirty()
 
+    # cursor after latest char
+    for curs in cursors:
+      if curs == lineOriginal.len:
+        result.add (subLine, "", rect(lastPartXW, 0, builder.charWidth, builder.textHeight), (line.index, curs))
+
 proc createHeader(self: TextDocumentEditor, builder: UINodeBuilder, app: App, headerColor: Color, textColor: Color): UINode =
   if self.renderHeader:
     builder.panel(&{FillX, SizeToContentY, FillBackground, LayoutHorizontal}, backgroundColor = headerColor):

src/text/text_editor.nim

@@ -468,17 +468,24 @@ proc selectPrev(self: TextDocumentEditor) {.expose("editor.text").} =
     let selection = self.selectionHistory.popLast
     self.selectionHistory.addFirst self.selections
     self.selectionsInternal = selection
+    self.cursorVisible = true
+    if self.blinkCursorTask.isNotNil and self.active:
+      self.blinkCursorTask.reschedule()
   self.scrollToCursor(self.selection.last)
 
 proc selectNext(self: TextDocumentEditor) {.expose("editor.text").} =
   if self.selectionHistory.len > 0:
     let selection = self.selectionHistory.popFirst
     self.selectionHistory.addLast self.selections
     self.selectionsInternal = selection
+    self.cursorVisible = true
+    if self.blinkCursorTask.isNotNil and self.active:
+      self.blinkCursorTask.reschedule()
   self.scrollToCursor(self.selection.last)
 
 proc selectInside(self: TextDocumentEditor, cursor: Cursor) {.expose("editor.text").} =
   self.selection = self.getSelectionForMove(cursor, "word")
+  # todo
   # let regex = re("[a-zA-Z0-9_]")
   # var first = cursor.column
   # # echo self.document.lines[cursor.line], ", ", first, ", ", self.document.lines[cursor.line].matchLen(regex, start = first - 1)

src/ui/node.nim

@@ -78,6 +78,7 @@ defineBitFlag:
     AnimateBounds
     AnimatePosition
     AnimateSize
+    SnapInitialBounds
 
 type
   UIUserIdKind* = enum None, Primary, Secondary
@@ -786,6 +787,25 @@ proc removeFromParent*(node: UINode) =
 proc getNextOrNewNode(builder: UINodeBuilder, node: UINode, last: UINode, userId: var UIUserId): UINode =
   let insert = true
 
+  let firstOrLast = if last.isNotNil: last else: node.first
+
+  # search ahead to see if we find a matching node
+  var matchingNode = UINode.none
+  if userId.kind != None and node.first.isNotNil:
+    for _, c in firstOrLast.nextSiblings:
+      if c.userId == userId:
+        matchingNode = c.some
+        break
+
+  if matchingNode.isSome:
+    matchingNode.get.removeFromParent()
+    node.insert(matchingNode.get, firstOrLast)
+
+    assert firstOrLast.next == matchingNode.get
+    assert firstOrLast.next.userId == userId
+
+    return firstOrLast.next
+
   if last.isNil: # Creating/Updating first child
     if node.first.isNotNil: # First child already exists
       if node.first.userId == userId: # User id matches, reuse existing
@@ -809,30 +829,6 @@ proc getNextOrNewNode(builder: UINodeBuilder, node: UINode, last: UINode, userId
     if last.next.userId == userId:
       return last.next
     elif userId.kind != None: # Has user id, doesn't match
-
-      # search ahead to see if we find a matching node
-      var matchingNode = UINode.none
-      for _, c in last.nextSiblings:
-        if c.userId == userId:
-          matchingNode = c.some
-          break
-
-      if matchingNode.isSome:
-        # echo "found matching node later, delete inbetween"
-        # remove all nodes in between
-        for _, c in last.nextSiblings:
-          if c == matchingNode.get:
-            break
-          # echo "delete old node ", c.dump(), ", ", node.clearRect
-          if builder.useInvalidation:
-            node.clearedChildrenBounds = node.clearedChildrenBounds or c.boundsActual.some
-          c.removeFromParent()
-          builder.returnNode(c)
-        assert last.next == matchingNode.get
-        assert last.next.userId == userId
-
-        return last.next
-
       let newNode = builder.unpoolNode(userId)
 
       if newNode.parent.isNotNil:
@@ -928,7 +924,14 @@ proc postProcessNodeBackwards(builder: UINodeBuilder, node: UINode, offsetX: flo
   let wasAnimating = node.id in builder.animatingNodes
 
   let animationProgress = clamp(node.boundsLerpSpeed * builder.animationSpeedModifier * builder.frameTime, 0, 1)
-  if AnimateBounds in node.flags or node.flags.all &{AnimatePosition, AnimateSize}:
+  if node.lastRenderTime == 0 and SnapInitialBounds in node.flags:
+    node.boundsActual.x = node.x
+    node.boundsActual.y = node.y
+    node.boundsActual.w = node.w
+    node.boundsActual.h = node.h
+    builder.animatingNodes.excl node.id
+
+  elif AnimateBounds in node.flags or node.flags.all &{AnimatePosition, AnimateSize}:
     if node.boundsActual.x == node.x and
       node.boundsActual.y == node.y and
       node.boundsActual.w == node.w and