public void BuildHeader(ImGui gui)
{
var spacing = innerPadding.left + innerPadding.right;
var x = 0f;
var topSeparator = gui.AllocateRect(0f, 0.1f);
var y = gui.statePosition.Y;
using (var group = gui.EnterFixedPositioning(0f, 1f, innerPadding))
{
foreach (var column in columns)
{
if (column.width < column.minWidth)
{
column.width = column.minWidth;
}
var rect = new Rect(x, y, column.width, 0f);
group.SetManualRectRaw(rect, RectAllocator.LeftRow);
gui.BuildText(column.header);
rect.Bottom = gui.statePosition.Y;
x += column.width + spacing;
if (!column.isFixedSize)
{
BuildHeaderResizer(gui, column, new Rect(x - 0.7f, y, 1f, 2.2f));
}
if (column.menuBuilder != null)
{
var menuRect = new Rect(rect.Right - 1.7f, rect.Y + 0.3f, 1.5f, 1.5f);
if (gui.isBuilding)
{
gui.DrawIcon(menuRect, Icon.DropDown, SchemeColor.BackgroundText);
}
if (gui.BuildButton(menuRect, SchemeColor.None, SchemeColor.Grey) == ImGuiUtils.Event.Click)
{
gui.ShowDropDown(menuRect, column.menuBuilder, new Padding(1f));
}
}
}
}
width = x + 0.2f - spacing;
var separator = gui.AllocateRect(x, 0.1f);
if (gui.isBuilding)
{
topSeparator.Width = separator.Width = width;
gui.DrawRectangle(topSeparator, SchemeColor.GreyAlt);
gui.DrawRectangle(separator, SchemeColor.GreyAlt);
//DrawVerticalGrid(gui, topSeparator.Bottom, separator.Top, SchemeColor.GreyAlt);
}
}
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 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);
}