/// <summary>Update the rectangles for the list box control</summary>
protected override void UpdateRectangles()
{
// Get bounding box
base.UpdateRectangles();
// Calculate the size of the selection rectangle
selectionRect = boundingBox;
selectionRect.Width -= scrollWidth;
selectionRect.Inflate(-border, -border);
textRect = selectionRect;
textRect.Inflate(-margin, 0);
// Update the scroll bars rects too
scrollbarControl.SetLocation(boundingBox.Right - scrollWidth, boundingBox.Top);
scrollbarControl.SetSize(scrollWidth, height);
FontNode fNode = DialogResourceManager.GetGlobalInstance().GetFontNode((int)(elementList[0] as Element).FontIndex);
if ((fNode != null) && (fNode.Height > 0))
{
scrollbarControl.PageSize = (int)(textRect.Height / fNode.Height);
// The selected item may have been scrolled off the page.
// Ensure that it is in page again.
scrollbarControl.ShowItem(selectedIndex);
}
}
public static DialogResourceManager GetGlobalInstance()
{
if (localObject == null)
{
localObject = new DialogResourceManager();
}
return(localObject);
}
/// <summary>Update the rectangles for the combo box control</summary>
protected override void UpdateRectangles()
{
// Get bounding box
base.UpdateRectangles();
// Update the bounding box for the items
buttonRect = new System.Drawing.Rectangle(boundingBox.Right - boundingBox.Height, boundingBox.Top,
boundingBox.Height, boundingBox.Height);
textRect = boundingBox;
textRect.Size = new System.Drawing.Size(textRect.Width - buttonRect.Width, textRect.Height);
dropDownRect = textRect;
dropDownRect.Offset(0, (int)(0.9f * textRect.Height));
dropDownRect.Size = new System.Drawing.Size(dropDownRect.Width - scrollWidth, dropDownRect.Height + dropHeight);
// Scale it down slightly
System.Drawing.Point loc = dropDownRect.Location;
System.Drawing.Size size = dropDownRect.Size;
loc.X += (int)(0.1f * dropDownRect.Width);
loc.Y += (int)(0.1f * dropDownRect.Height);
size.Width -= (2 * (int)(0.1f * dropDownRect.Width));
size.Height -= (2 * (int)(0.1f * dropDownRect.Height));
dropDownTextRect = new System.Drawing.Rectangle(loc, size);
// Update the scroll bars rects too
scrollbarControl.SetLocation(dropDownRect.Right, dropDownRect.Top + 2);
scrollbarControl.SetSize(scrollWidth, dropDownRect.Height - 2);
FontNode fNode = DialogResourceManager.GetGlobalInstance().GetFontNode((int)(elementList[2] as Element).FontIndex);
if ((fNode != null) && (fNode.Height > 0))
{
scrollbarControl.PageSize = (int)(dropDownTextRect.Height / fNode.Height);
// The selected item may have been scrolled off the page.
// Ensure that it is in page again.
scrollbarControl.ShowItem(selectedIndex);
}
}
/// <summary>Called when the control should be rendered</summary>
public override void Render(Device device, float elapsedTime)
{
if (!IsVisible)
{
return; // Nothing to render
}
Element e = elementList[ListBox.MainLayer] as Element;
// Blend current color
e.TextureColor.Blend(ControlState.Normal, elapsedTime);
e.FontColor.Blend(ControlState.Normal, elapsedTime);
Element selectedElement = elementList[ListBox.SelectionLayer] as Element;
// Blend current color
selectedElement.TextureColor.Blend(ControlState.Normal, elapsedTime);
selectedElement.FontColor.Blend(ControlState.Normal, elapsedTime);
parentDialog.DrawSprite(e, boundingBox);
// Render the text
if (itemList.Count > 0)
{
// Find out the height of a single line of text
System.Drawing.Rectangle rc = textRect;
System.Drawing.Rectangle sel = selectionRect;
rc.Height = (int)(DialogResourceManager.GetGlobalInstance().GetFontNode((int)e.FontIndex).Height);
textHeight = rc.Height;
// If we have not initialized the scroll bar page size,
// do that now.
if (!isScrollBarInit)
{
if (textHeight > 0)
{
scrollbarControl.PageSize = (int)(textRect.Height / textHeight);
}
else
{
scrollbarControl.PageSize = textRect.Height;
}
isScrollBarInit = true;
}
rc.Width = textRect.Width;
for (int i = scrollbarControl.TrackPosition; i < itemList.Count; ++i)
{
if (rc.Bottom > textRect.Bottom)
{
break;
}
ListBoxItem lb = (ListBoxItem)itemList[i];
// Determine if we need to render this item with the
// selected element.
bool isSelectedStyle = false;
if ((selectedIndex == i) && (style == ListBoxStyle.SingleSelection))
{
isSelectedStyle = true;
}
else if (style == ListBoxStyle.Multiselection)
{
if (isDragging && ((i >= selectedIndex && i < selectedStarted) ||
(i <= selectedIndex && i > selectedStarted)))
{
ListBoxItem selStart = (ListBoxItem)itemList[selectedStarted];
isSelectedStyle = selStart.IsItemSelected;
}
else
{
isSelectedStyle = lb.IsItemSelected;
}
}
// Now render the text
if (isSelectedStyle)
{
sel.Location = new System.Drawing.Point(sel.Left, rc.Top);
sel.Height = rc.Height;
parentDialog.DrawSprite(selectedElement, sel);
parentDialog.DrawText(lb.ItemText, selectedElement, rc);
}
else
{
parentDialog.DrawText(lb.ItemText, e, rc);
}
rc.Offset(0, textHeight);
}
}
// Render the scrollbar finally
scrollbarControl.Render(device, elapsedTime);
}
/// <summary>Called when the control should be rendered</summary>
public override void Render(Device device, float elapsedTime)
{
ControlState state = ControlState.Normal;
if (!isComboOpen)
{
state = ControlState.Hidden;
}
// Dropdown box
Element e = elementList[ComboBox.DropdownLayer] as Element;
// If we have not initialized the scroll bar page size,
// do that now.
if (!isScrollBarInit)
{
FontNode fNode = DialogResourceManager.GetGlobalInstance().GetFontNode((int)e.FontIndex);
if ((fNode != null) && (fNode.Height > 0))
{
scrollbarControl.PageSize = (int)(dropDownTextRect.Height / fNode.Height);
}
else
{
scrollbarControl.PageSize = dropDownTextRect.Height;
}
isScrollBarInit = true;
}
if (isComboOpen)
{
scrollbarControl.Render(device, elapsedTime);
}
// Blend current color
e.TextureColor.Blend(state, elapsedTime);
e.FontColor.Blend(state, elapsedTime);
parentDialog.DrawSprite(e, dropDownRect);
// Selection outline
Element selectionElement = elementList[ComboBox.SelectionLayer] as Element;
selectionElement.TextureColor.Current = e.TextureColor.Current;
selectionElement.FontColor.Current = selectionElement.FontColor.States[(int)ControlState.Normal];
FontNode font = DialogResourceManager.GetGlobalInstance().GetFontNode((int)e.FontIndex);
int currentY = dropDownTextRect.Top;
int remainingHeight = dropDownTextRect.Height;
for (int i = scrollbarControl.TrackPosition; i < itemList.Count; i++)
{
ComboBoxItem cbi = (ComboBoxItem)itemList[i];
// Make sure there's room left in the dropdown
remainingHeight -= (int)font.Height;
if (remainingHeight < 0)
{
// Not visible, store that item
cbi.IsItemVisible = false;
itemList[i] = cbi; // Store this back in list
continue;
}
cbi.ItemRect = new System.Drawing.Rectangle(dropDownTextRect.Left, currentY,
dropDownTextRect.Width, (int)font.Height);
cbi.IsItemVisible = true;
currentY += (int)font.Height;
itemList[i] = cbi; // Store this back in list
if (isComboOpen)
{
if (focusedIndex == i)
{
System.Drawing.Rectangle rect = new System.Drawing.Rectangle(
dropDownRect.Left, cbi.ItemRect.Top - 2, dropDownRect.Width,
cbi.ItemRect.Height + 4);
parentDialog.DrawSprite(selectionElement, rect);
parentDialog.DrawText(cbi.ItemText, selectionElement, cbi.ItemRect);
}
else
{
parentDialog.DrawText(cbi.ItemText, e, cbi.ItemRect);
}
}
}
int offsetX = 0;
int offsetY = 0;
state = ControlState.Normal;
if (IsVisible == false)
{
state = ControlState.Hidden;
}
else if (IsEnabled == false)
{
state = ControlState.Disabled;
}
else if (isPressed)
{
state = ControlState.Pressed;
offsetX = 1;
offsetY = 2;
}
else if (isMouseOver)
{
state = ControlState.MouseOver;
offsetX = -1;
offsetY = -2;
}
else if (hasFocus)
{
state = ControlState.Focus;
}
float blendRate = (state == ControlState.Pressed) ? 0.0f : 0.8f;
// Button
e = elementList[ComboBox.ComboButtonLayer] as Element;
// Blend current color
e.TextureColor.Blend(state, elapsedTime, blendRate);
System.Drawing.Rectangle windowRect = buttonRect;
windowRect.Offset(offsetX, offsetY);
// Draw sprite
parentDialog.DrawSprite(e, windowRect);
if (isComboOpen)
{
state = ControlState.Pressed;
}
// Main text box
e = elementList[ComboBox.MainLayer] as Element;
// Blend current color
e.TextureColor.Blend(state, elapsedTime, blendRate);
e.FontColor.Blend(state, elapsedTime, blendRate);
// Draw sprite
parentDialog.DrawSprite(e, textRect);
if (selectedIndex >= 0 && selectedIndex < itemList.Count)
{
try
{
ComboBoxItem cbi = (ComboBoxItem)itemList[selectedIndex];
parentDialog.DrawText(cbi.ItemText, e, textRect);
}
catch { } // Ignore
}
}
