Files
conquest/src/client/views/widgets/dualListSelection.nim
2025-10-31 16:59:10 +01:00

158 lines
7.1 KiB
Nim

import sequtils, algorithm
import imguin/[cimgui, glfw_opengl]
import ../../utils/[appImGui, colors]
type
DualListSelectionWidget*[T] = ref object of RootObj
items*: array[2, seq[T]]
selection: array[2, ptr ImGuiSelectionBasicStorage]
display: proc(item: T): string
compare: proc(x, y: T): int
tooltip: proc(item: T): string
proc defaultDisplay[T](item: T): string =
return $item
proc DualListSelection*[T](items: seq[T], display: proc(item: T): string = defaultDisplay, compare: proc(x, y: T): int, tooltip: proc(item: T): string = nil): DualListSelectionWidget[T] =
result = new DualListSelectionWidget[T]
result.items[0] = items
result.items[1] = @[]
result.selection[0] = ImGuiSelectionBasicStorage_ImGuiSelectionBasicStorage()
result.selection[1] = ImGuiSelectionBasicStorage_ImGuiSelectionBasicStorage()
result.display = display
result.compare = compare
result.tooltip = tooltip
proc moveAll[T](component: DualListSelectionWidget[T], src, dst: int) =
for m in component.items[src]:
component.items[dst].add(m)
component.items[dst].sort(component.compare)
component.items[src].setLen(0)
ImGuiSelectionBasicStorage_Swap(component.selection[src], component.selection[dst])
ImGuiSelectionBasicStorage_Clear(component.selection[src])
proc moveSelection[T](component: DualListSelectionWidget[T], src, dst: int) =
var keep: seq[T]
for i in 0 ..< component.items[src].len():
let item = component.items[src][i]
if not component.selection[src].ImGuiSelectionBasicStorage_Contains(cast[ImGuiID](i)):
keep.add(item)
continue
component.items[dst].add(item)
component.items[dst].sort(component.compare)
component.items[src] = keep
ImGuiSelectionBasicStorage_Swap(component.selection[src], component.selection[dst])
ImGuiSelectionBasicStorage_Clear(component.selection[src])
proc reset*[T](component: DualListSelectionWidget[T]) =
component.moveAll(1, 0)
proc draw*[T](component: DualListSelectionWidget[T]) =
if igBeginTable("split", 3, ImGuiTableFlags_None.int32, vec2(0.0f, 0.0f), 0.0f):
igTableSetupColumn("", ImGuiTableColumnFlags_WidthStretch.int32, 0.0f, 0) # Left
igTableSetupColumn("", ImGuiTableColumnFlags_WidthFixed.int32, 0.0f, 0) # Buttons
igTableSetupColumn("", ImGuiTableColumnFlags_WidthStretch.int32, 0.0f, 0) # Right
igTableNextRow(ImGuiTableRowFlags_None.int32, 0.0f)
var containerHeight: float
# Left selection column
igTableSetColumnIndex(0)
var modules = component.items[0]
var selection = component.selection[0]
# Header
var text = "Available"
var textSize: ImVec2
igCalcTextSize(addr textSize, text.cstring, nil, false, 0.0f)
igSetCursorPosX(igGetCursorPosX() + (igGetColumnWidth(0) - textSize.x) * 0.5f)
igTextColored(GRAY, text.cstring)
# Set the size of selection box to fit all modules
igSetNextWindowContentSize(vec2(0.0f, float(modules.len()) * igGetTextLineHeightWithSpacing()))
igSetNextWindowSizeConstraints(vec2(0.0f, igGetTextLineHeightWithSpacing() * 10.0f), vec2(igGET_FLT_MAX(), igGET_FLT_MAX()), nil, nil) # Set minimum container size
if igBeginChild_Str("0", vec2(0.0f, -1.0f), ImGuiChildFlags_FrameStyle.int32 or ImGuiChildFlags_ResizeY.int32, ImGuiWindowFlags_None.int32):
containerHeight = igGetWindowHeight()
var multiSelectIO = igBeginMultiSelect(ImGuiMultiSelectFlags_None.int32, selection[].Size, int32(modules.len()))
ImGuiSelectionBasicStorage_ApplyRequests(selection, multiSelectIO)
for row in 0 ..< modules.len().int32:
var isSelected = ImGuiSelectionBasicStorage_Contains(selection, cast[ImGuiID](row))
igSetNextItemSelectionUserData(row)
discard igSelectable_Bool(component.display(modules[row]).cstring, isSelected, ImGuiSelectableFlags_AllowDoubleClick.int32, vec2(0.0f, 0.0f))
if not component.tooltip.isNil():
setTooltip(component.tooltip(modules[row]))
# Move on Enter and double-click
if igIsItemFocused():
if igIsKeyPressed_Bool(ImGuiKey_Enter, false) or igIsKeyPressed_Bool(ImGuiKey_KeypadEnter, false):
component.moveSelection(0, 1)
if igIsMouseDoubleClicked_Nil(ImGui_MouseButton_Left.int32):
component.moveSelection(0, 1)
multiSelectIO = igEndMultiSelect()
ImGuiSelectionBasicStorage_ApplyRequests(selection, multiSelectIO)
igEndChild()
# Buttons column
igTableSetColumnIndex(1)
igNewLine()
let buttonSize = vec2(igGetFrameHeight(), igGetFrameHeight())
if igButton(">>", buttonSize):
component.moveAll(0, 1)
if igButton(">", buttonSize):
component.moveSelection(0, 1)
if igButton("<", buttonSize):
component.moveSelection(1, 0)
if igButton("<<", buttonSize):
component.moveAll(1, 0)
# Right selection column
igTableSetColumnIndex(2)
modules = component.items[1]
selection = component.selection[1]
# Header
text = "Selected"
igCalcTextSize(addr textSize, text.cstring, nil, false, 0.0f)
igSetCursorPosX(igGetCursorPosX() + (igGetColumnWidth(2) - textSize.x) * 0.5f)
igTextColored(GRAY, text.cstring)
# Set the size of selection box to fit all modules
igSetNextWindowContentSize(vec2(0.0f, float(modules.len()) * igGetTextLineHeightWithSpacing()))
if igBeginChild_Str("1", vec2(0.0f, containerHeight), ImGuiChildFlags_FrameStyle.int32, ImGuiWindowFlags_None.int32):
var multiSelectIO = igBeginMultiSelect(ImGuiMultiSelectFlags_None.int32, selection[].Size, int32(modules.len()))
ImGuiSelectionBasicStorage_ApplyRequests(selection, multiSelectIO)
for row in 0 ..< modules.len().int32:
var isSelected = ImGuiSelectionBasicStorage_Contains(selection, cast[ImGuiID](row))
igSetNextItemSelectionUserData(row)
discard igSelectable_Bool(component.display(modules[row]).cstring, isSelected, ImGuiSelectableFlags_AllowDoubleClick.int32, vec2(0.0f, 0.0f))
if not component.tooltip.isNil():
setTooltip(component.tooltip(modules[row]))
# Move on Enter and double-click
if igIsItemFocused():
if igIsKeyPressed_Bool(ImGuiKey_Enter, false) or igIsKeyPressed_Bool(ImGuiKey_KeypadEnter, false):
component.moveSelection(1, 0)
if igIsMouseDoubleClicked_Nil(ImGui_MouseButton_Left.int32):
component.moveSelection(1, 0)
multiSelectIO = igEndMultiSelect()
ImGuiSelectionBasicStorage_ApplyRequests(selection, multiSelectIO)
igEndChild()
igEndTable()