public static bool BuildRadioGroup(this ImGui gui, IReadOnlyList <string> options, int selected, out int newSelected, SchemeColor color = SchemeColor.None)
{
newSelected = selected;
for (var i = 0; i < options.Count; i++)
{
if (BuildRadioButton(gui, options[i], selected == i, color))
{
newSelected = i;
}
}
return(newSelected != selected);
}
public static bool BuildContextMenuButton(this ImGui gui, string text, string rightText = null)
{
using (gui.EnterGroup(DefaultButtonPadding, RectAllocator.LeftRow, SchemeColor.BackgroundText))
{
gui.BuildText(text, Font.text, wrap: true);
if (rightText != null)
{
gui.allocator = RectAllocator.RightRow;
gui.BuildText(rightText, align: RectAlignment.MiddleRight);
}
}
return(gui.BuildButton(gui.lastRect, SchemeColor.None, SchemeColor.Grey) == Event.Click);
}
internal InlineGridBuilder(ImGui gui, float elementWidth, float spacing, int elementsPerRow)
{
savedContext = default;
this.gui = gui;
this.spacing = spacing;
gui.allocator = RectAllocator.LeftAlign;
this.elementWidth = MathF.Min(elementWidth, gui.width);
this.elementsPerRow = elementsPerRow == 0 ? MathUtils.Floor((gui.width + spacing) / (elementWidth + spacing)) : elementsPerRow;
currentRowIndex = -1;
if (elementWidth <= 0)
{
this.elementsPerRow = 1;
}
}
public static Event BuildRedButton(this ImGui gui, Icon icon, float size = 1.5f)
{
Rect iconRect;
using (gui.EnterGroup(new Padding(0.3f)))
iconRect = gui.AllocateRect(size, size, RectAlignment.Middle);
var evt = gui.BuildButton(gui.lastRect, SchemeColor.None, SchemeColor.Error);
if (gui.isBuilding)
{
gui.DrawIcon(iconRect, icon, gui.IsMouseOver(gui.lastRect) ? SchemeColor.ErrorText : SchemeColor.Error);
}
return(evt);
}
public static Event BuildRedButton(this ImGui gui, string text)
{
Rect textRect;
TextCache cache;
using (gui.EnterGroup(DefaultButtonPadding))
textRect = gui.AllocateTextRect(out cache, text, align: RectAlignment.Middle);
var evt = gui.BuildButton(gui.lastRect, SchemeColor.None, SchemeColor.Error);
if (gui.isBuilding)
{
gui.DrawRenderable(textRect, cache, gui.IsMouseOver(gui.lastRect) ? SchemeColor.ErrorText : SchemeColor.Error);
}
return(evt);
}
public static bool BuildSlider(this ImGui gui, float value, out float newValue, float width = 10f)
{
var sliderRect = gui.AllocateRect(width, 2f, RectAlignment.Full);
var handleStart = (sliderRect.Width - 1f) * value;
var handleRect = new Rect(sliderRect.X + handleStart, sliderRect.Y, 1f, sliderRect.Height);
var update = false;
newValue = value;
switch (gui.action)
{
case ImGuiAction.Build:
gui.DrawRectangle(handleRect, gui.IsMouseOverOrDown(sliderRect) ? SchemeColor.Background : SchemeColor.PureBackground, RectangleBorder.Thin);
sliderRect.Y += (sliderRect.Height - 0.3f) / 2f;
sliderRect.Height = 0.3f;
gui.DrawRectangle(sliderRect, SchemeColor.Grey);
break;
case ImGuiAction.MouseMove:
if (gui.IsMouseDown(sliderRect))
{
update = true;
}
else
{
gui.ConsumeMouseOver(sliderRect, RenderingUtils.cursorHand);
}
break;
case ImGuiAction.MouseDown:
if (gui.IsMouseOver(sliderRect))
{
gui.ConsumeMouseDown(sliderRect);
update = true;
}
break;
}
if (!update)
{
return(false);
}
var positionX = (gui.mousePosition.X - sliderRect.X - 0.5f) / (sliderRect.Width - 1f);
newValue = MathUtils.Clamp(positionX, 0f, 1f);
gui.Rebuild();
return(true);
}
public static bool DoListReordering <T>(this ImGui gui, Rect moveHandle, Rect contents, T index, out T moveFrom, SchemeColor backgroundColor = SchemeColor.PureBackground, bool updateDraggingObject = true)
{
var result = false;
moveFrom = index;
if (!gui.InitiateDrag(moveHandle, contents, index, backgroundColor) && gui.action == ImGuiAction.MouseDrag && gui.ConsumeDrag(contents.Center, index))
{
moveFrom = gui.GetDraggingObject <T>();
if (updateDraggingObject)
{
gui.UpdateDraggingObject(index);
}
result = true;
}
return(result);
}
public static bool BuildCheckBox(this ImGui gui, string text, bool value, out bool newValue, SchemeColor color = SchemeColor.None, RectAllocator allocator = RectAllocator.LeftRow)
{
using (gui.EnterRow(allocator: allocator))
{
gui.BuildIcon(value ? Icon.CheckBoxCheck : Icon.CheckBoxEmpty, 1.5f, color);
gui.BuildText(text, Font.text, color: color);
}
if (gui.OnClick(gui.lastRect))
{
newValue = !value;
return(true);
}
newValue = value;
return(false);
}
public static bool BuildErrorRow(this ImGui gui, string text)
{
var closed = false;
using (gui.EnterRow(allocator: RectAllocator.RightRow, textColor: SchemeColor.ErrorText))
{
if (gui.BuildButton(Icon.Close, size: 1f, over: SchemeColor.ErrorAlt))
{
closed = true;
}
gui.RemainingRow().BuildText(text, align: RectAlignment.Middle);
}
if (gui.isBuilding)
{
gui.DrawRectangle(gui.lastRect, SchemeColor.Error);
}
return(closed);
}
public static InlineGridBuilder EnterHorizontalSplit(this ImGui gui, int elementCount, float spacing = 0f)
{
return(new InlineGridBuilder(gui, (gui.width + spacing) / elementCount - spacing, spacing, elementCount));
}
public static InlineGridBuilder EnterInlineGrid(this ImGui gui, float elementWidth, float spacing = 0f, int maxElemCount = 0)
{
return(new InlineGridBuilder(gui, elementWidth, spacing, maxElemCount));
}
public static void ShowTooltip(this ImGui gui, GuiBuilder builder, float width = 20f) => gui.window?.ShowTooltip(gui, gui.lastRect, builder, width);
public static void ShowTooltip(this ImGui gui, Rect rect, string text, float width = 20f) => gui.window?.ShowTooltip(gui, rect, x => x.BuildText(text, wrap: true), width);
public static void ShowDropDown(this ImGui gui, Rect rect, SimpleDropDown.Builder builder, Padding padding, float width = 20f) => gui.window?.ShowDropDown(gui, rect, builder, padding, width);
public static bool BuildButton(this ImGui gui, Icon icon, SchemeColor normal = SchemeColor.None, SchemeColor over = SchemeColor.Grey, SchemeColor down = SchemeColor.None, float size = 1.5f)
{
using (gui.EnterGroup(new Padding(0.3f)))
gui.BuildIcon(icon, size);
return(gui.BuildButton(gui.lastRect, normal, over, down) == Event.Click);
}
protected override void BuildContents(ImGui gui)
{
BuildContent(gui);
gui.SetContextRect(new Rect(default, size));
public static void ShowDropDown(this ImGui gui, SimpleDropDown.Builder builder, float width = 20f) => gui.window?.ShowDropDown(gui, gui.lastRect, builder, new Padding(1f), width);