public override void DrawOuter()
{
if (!IsVisible())
{
return;
}
UpdateSmoothScrolling();
var rb = RenderBounds;
var scrollbarHeight = rb.Height - 2 * ScrollbarWidth;
// Scroll thumb is only visible if the content does not fit within the panel bounds
var thumbHeight = 0;
var thumbOrigin = rb.Y + ScrollbarWidth;
if (ContentHeight > rb.Height)
{
thumbHeight = Math.Max(MinimumThumbSize, scrollbarHeight * rb.Height / ContentHeight);
thumbOrigin += (int)((scrollbarHeight - thumbHeight) * currentListOffset / (rb.Height - ContentHeight));
}
switch (ScrollBar)
{
case ScrollBar.Left:
backgroundRect = new Rectangle(rb.X + ScrollbarWidth, rb.Y, rb.Width + 1, rb.Height);
upButtonRect = new Rectangle(rb.X, rb.Y, ScrollbarWidth, ScrollbarWidth);
downButtonRect = new Rectangle(rb.X, rb.Bottom - ScrollbarWidth, ScrollbarWidth, ScrollbarWidth);
scrollbarRect = new Rectangle(rb.X, rb.Y + ScrollbarWidth - 1, ScrollbarWidth, scrollbarHeight + 2);
thumbRect = new Rectangle(rb.X, thumbOrigin, ScrollbarWidth, thumbHeight);
break;
case ScrollBar.Right:
backgroundRect = new Rectangle(rb.X, rb.Y, rb.Width - ScrollbarWidth + 1, rb.Height);
upButtonRect = new Rectangle(rb.Right - ScrollbarWidth, rb.Y, ScrollbarWidth, ScrollbarWidth);
downButtonRect = new Rectangle(rb.Right - ScrollbarWidth, rb.Bottom - ScrollbarWidth, ScrollbarWidth, ScrollbarWidth);
scrollbarRect = new Rectangle(rb.Right - ScrollbarWidth, rb.Y + ScrollbarWidth - 1, ScrollbarWidth, scrollbarHeight + 2);
thumbRect = new Rectangle(rb.Right - ScrollbarWidth, thumbOrigin, ScrollbarWidth, thumbHeight);
break;
case ScrollBar.Hidden:
backgroundRect = new Rectangle(rb.X, rb.Y, rb.Width + 1, rb.Height);
break;
default:
throw new ArgumentOutOfRangeException();
}
WidgetUtils.DrawPanel(Background, backgroundRect);
if (ScrollBar != ScrollBar.Hidden)
{
var upHover = Ui.MouseOverWidget == this && upButtonRect.Contains(Viewport.LastMousePos);
upDisabled = thumbHeight == 0 || currentListOffset >= 0;
var downHover = Ui.MouseOverWidget == this && downButtonRect.Contains(Viewport.LastMousePos);
downDisabled = thumbHeight == 0 || currentListOffset <= Bounds.Height - ContentHeight;
var thumbHover = Ui.MouseOverWidget == this && thumbRect.Contains(Viewport.LastMousePos);
WidgetUtils.DrawPanel(ScrollBarBackground, scrollbarRect);
ButtonWidget.DrawBackground(Button, upButtonRect, upDisabled, upPressed, upHover, false);
ButtonWidget.DrawBackground(Button, downButtonRect, downDisabled, downPressed, downHover, false);
if (thumbHeight > 0)
{
ButtonWidget.DrawBackground(Button, thumbRect, false, HasMouseFocus && thumbHover, thumbHover, false);
}
var upOffset = !upPressed || upDisabled ? 4 : 4 + ButtonDepth;
var downOffset = !downPressed || downDisabled ? 4 : 4 + ButtonDepth;
var upArrowImageName = WidgetUtils.GetStatefulImageName(DecorationScrollUp, upDisabled, upPressed, upHover);
var upArrowImage = ChromeProvider.GetImage(Decorations, upArrowImageName) ?? ChromeProvider.GetImage(Decorations, DecorationScrollUp);
WidgetUtils.DrawRGBA(upArrowImage,
new float2(upButtonRect.Left + upOffset, upButtonRect.Top + upOffset));
var downArrowImageName = WidgetUtils.GetStatefulImageName(DecorationScrollDown, downDisabled, downPressed, downHover);
var downArrowImage = ChromeProvider.GetImage(Decorations, downArrowImageName) ?? ChromeProvider.GetImage(Decorations, DecorationScrollDown);
WidgetUtils.DrawRGBA(downArrowImage,
new float2(downButtonRect.Left + downOffset, downButtonRect.Top + downOffset));
}
var drawBounds = backgroundRect.InflateBy(-BorderWidth, -BorderWidth, -BorderWidth, -BorderWidth);
Game.Renderer.EnableScissor(drawBounds);
// ChildOrigin enumerates the widget tree, so only evaluate it once
var co = ChildOrigin;
drawBounds.X -= co.X;
drawBounds.Y -= co.Y;
foreach (var child in Children)
{
if (child.Bounds.IntersectsWith(drawBounds))
{
child.DrawOuter();
}
}
Game.Renderer.DisableScissor();
}
public static void BindButtonIcon(ButtonWidget button)
{
var icon = button.Get <ImageWidget>("ICON");
var hasActiveImage = ChromeProvider.GetImage(icon.ImageCollection, icon.ImageName + "-active") != null;
var hasActiveDisabledImage = ChromeProvider.GetImage(icon.ImageCollection, icon.ImageName + "-active-disabled") != null;
var hasActivePressedImage = ChromeProvider.GetImage(icon.ImageCollection, icon.ImageName + "-active-pressed") != null;
var hasActiveHoverImage = ChromeProvider.GetImage(icon.ImageCollection, icon.ImageName + "-active-hover") != null;
var hasImage = ChromeProvider.GetImage(icon.ImageCollection, icon.ImageName) != null;
var hasDisabledImage = ChromeProvider.GetImage(icon.ImageCollection, icon.ImageName + "-disabled") != null;
var hasPressedImage = ChromeProvider.GetImage(icon.ImageCollection, icon.ImageName + "-pressed") != null;
var hasHoverImage = ChromeProvider.GetImage(icon.ImageCollection, icon.ImageName + "-hover") != null;
icon.GetImageName = () =>
{
var isActive = button.IsHighlighted();
var isDisabled = button.IsDisabled();
var isPressed = button.Depressed;
var isHovered = Ui.MouseOverWidget == button;
var baseName = button.IsHighlighted() ? icon.ImageName + "-active" : icon.ImageName;
var stateName = WidgetUtils.GetStatefulImageName(baseName, isDisabled, isPressed, isHovered);
if (isActive)
{
if (isDisabled)
{
return(hasActiveDisabledImage ? stateName : hasActiveImage?baseName : icon.ImageName);
}
else if (isPressed)
{
return(hasActivePressedImage ? stateName : hasActiveImage?baseName : icon.ImageName);
}
else if (isHovered)
{
return(hasActiveHoverImage ? stateName : hasActiveImage?baseName : icon.ImageName);
}
else
{
return(hasActiveImage ? baseName : icon.ImageName);
}
}
else
{
if (isDisabled)
{
return(hasDisabledImage ? stateName : baseName);
}
else if (isPressed)
{
return(hasPressedImage ? stateName : baseName);
}
else if (isHovered)
{
return(hasHoverImage ? stateName : baseName);
}
else
{
return(baseName);
}
}
};
}
void BindButtonIcon(ButtonWidget button)
{
var icon = button.Get <ImageWidget>("ICON");
icon.GetImageName = () => button.IsDisabled() ? icon.ImageName + "-disabled" : icon.ImageName;
}
public override void DrawOuter()
{
if (!IsVisible())
{
return;
}
var rb = RenderBounds;
var scrollbarHeight = rb.Height - 2 * ScrollbarWidth;
var thumbHeight = ContentHeight == 0 ? 0 : Math.Max(MinimumThumbSize, (int)(scrollbarHeight * Math.Min(rb.Height * 1f / ContentHeight, 1f)));
var thumbOrigin = rb.Y + ScrollbarWidth + (int)((scrollbarHeight - thumbHeight) * (-1f * currentListOffset / (ContentHeight - rb.Height)));
if (thumbHeight == scrollbarHeight)
{
thumbHeight = 0;
}
backgroundRect = new Rectangle(rb.X, rb.Y, rb.Width - ScrollbarWidth + 1, rb.Height);
upButtonRect = new Rectangle(rb.Right - ScrollbarWidth, rb.Y, ScrollbarWidth, ScrollbarWidth);
downButtonRect = new Rectangle(rb.Right - ScrollbarWidth, rb.Bottom - ScrollbarWidth, ScrollbarWidth, ScrollbarWidth);
scrollbarRect = new Rectangle(rb.Right - ScrollbarWidth, rb.Y + ScrollbarWidth - 1, ScrollbarWidth, scrollbarHeight + 2);
thumbRect = new Rectangle(rb.Right - ScrollbarWidth, thumbOrigin, ScrollbarWidth, thumbHeight);
var upHover = Ui.MouseOverWidget == this && upButtonRect.Contains(Viewport.LastMousePos);
upDisabled = thumbHeight == 0 || currentListOffset >= 0;
var downHover = Ui.MouseOverWidget == this && downButtonRect.Contains(Viewport.LastMousePos);
downDisabled = thumbHeight == 0 || currentListOffset <= Bounds.Height - ContentHeight;
var thumbHover = Ui.MouseOverWidget == this && thumbRect.Contains(Viewport.LastMousePos);
WidgetUtils.DrawPanel(Background, backgroundRect);
WidgetUtils.DrawPanel(Background, scrollbarRect);
ButtonWidget.DrawBackground(Button, upButtonRect, upDisabled, upPressed, upHover, false);
ButtonWidget.DrawBackground(Button, downButtonRect, downDisabled, downPressed, downHover, false);
if (thumbHeight > 0)
{
ButtonWidget.DrawBackground(Button, thumbRect, false, HasMouseFocus && thumbHover, thumbHover, false);
}
var upOffset = !upPressed || upDisabled ? 4 : 4 + ButtonDepth;
var downOffset = !downPressed || downDisabled ? 4 : 4 + ButtonDepth;
WidgetUtils.DrawRGBA(ChromeProvider.GetImage("scrollbar", upPressed || upDisabled ? "up_pressed" : "up_arrow"),
new float2(upButtonRect.Left + upOffset, upButtonRect.Top + upOffset));
WidgetUtils.DrawRGBA(ChromeProvider.GetImage("scrollbar", downPressed || downDisabled ? "down_pressed" : "down_arrow"),
new float2(downButtonRect.Left + downOffset, downButtonRect.Top + downOffset));
var drawBounds = backgroundRect.InflateBy(-1, -1, -1, -1);
Game.Renderer.EnableScissor(drawBounds);
drawBounds.Offset((-ChildOrigin).ToPoint());
foreach (var child in Children)
{
if (child.Bounds.IntersectsWith(drawBounds))
{
child.DrawOuter();
}
}
Game.Renderer.DisableScissor();
}
public static void TextInputPrompt(
string title, string prompt, string initialText,
Action <string> onAccept, Action onCancel = null,
string acceptText = null, string cancelText = null,
Func <string, bool> inputValidator = null)
{
var panel = Ui.OpenWindow("TEXT_INPUT_PROMPT");
Func <bool> doValidate = null;
ButtonWidget acceptButton = null, cancelButton = null;
//
// Title
//
panel.Get <LabelWidget>("PROMPT_TITLE").GetText = () => title;
//
// Prompt
//
panel.Get <LabelWidget>("PROMPT_TEXT").GetText = () => prompt;
//
// Text input
//
var input = panel.Get <TextFieldWidget>("INPUT_TEXT");
var isValid = false;
input.Text = initialText;
input.IsValid = () => isValid;
input.OnEnterKey = () =>
{
if (acceptButton.IsDisabled())
{
return(false);
}
acceptButton.OnClick();
return(true);
};
input.OnEscKey = () =>
{
if (cancelButton.IsDisabled())
{
return(false);
}
cancelButton.OnClick();
return(true);
};
input.TakeKeyboardFocus();
input.CursorPosition = input.Text.Length;
input.OnTextEdited = () => doValidate();
//
// Buttons
//
acceptButton = panel.Get <ButtonWidget>("ACCEPT_BUTTON");
if (!string.IsNullOrEmpty(acceptText))
{
acceptButton.GetText = () => acceptText;
}
acceptButton.OnClick = () =>
{
if (!doValidate())
{
return;
}
Ui.CloseWindow();
onAccept(input.Text);
};
cancelButton = panel.Get <ButtonWidget>("CANCEL_BUTTON");
if (!string.IsNullOrEmpty(cancelText))
{
cancelButton.GetText = () => cancelText;
}
cancelButton.OnClick = () =>
{
Ui.CloseWindow();
if (onCancel != null)
{
onCancel();
}
};
//
// Validation
//
doValidate = () =>
{
if (inputValidator == null)
{
return(true);
}
isValid = inputValidator(input.Text);
if (isValid)
{
acceptButton.Disabled = false;
return(true);
}
acceptButton.Disabled = true;
return(false);
};
doValidate();
}