public Paragraph(CreateParams parentParams, XmlReader reader)
{
Initialize( );
// Always get our style first
mStyle = parentParams.Style;
Styles.Style.ParseStyleAttributesWithDefaults(reader, ref mStyle, ref ControlStyles.mParagraph);
// check for attributes we support
RectangleF bounds = new RectangleF( );
SizeF parentSize = new SizeF(parentParams.Width, parentParams.Height);
ParseCommonAttribs(reader, ref parentSize, ref bounds);
// Get margins and padding
RectangleF padding;
RectangleF margin;
GetMarginsAndPadding(ref mStyle, ref parentSize, ref bounds, out margin, out padding);
// apply margins to as much of the bounds as we can (bottom must be done by our parent container)
ApplyImmediateMargins(ref bounds, ref margin, ref parentSize);
Margin = margin;
// check for border styling
int borderPaddingPx = 0;
if (mStyle.mBorderColor.HasValue)
{
BorderView.BorderColor = mStyle.mBorderColor.Value;
}
if (mStyle.mBorderRadius.HasValue)
{
BorderView.CornerRadius = mStyle.mBorderRadius.Value;
}
if (mStyle.mBorderWidth.HasValue)
{
BorderView.BorderWidth = mStyle.mBorderWidth.Value;
borderPaddingPx = (int)Rock.Mobile.Graphics.Util.UnitToPx(mStyle.mBorderWidth.Value + PrivateNoteConfig.BorderPadding);
}
if (mStyle.mBackgroundColor.HasValue)
{
BorderView.BackgroundColor = mStyle.mBackgroundColor.Value;
}
//
// now calculate the available width based on padding. (Don't actually change our width)
float availableWidth = bounds.Width - padding.Left - padding.Width - (borderPaddingPx * 2);
// see if there's a URL we should care about
ActiveUrl = reader.GetAttribute("Url");
string urlLaunchesExternalBrowser = reader.GetAttribute("UrlLaunchesExternalBrowser");
if (string.IsNullOrEmpty(urlLaunchesExternalBrowser) == false)
{
UrlLaunchesExternalBrowser = bool.Parse(urlLaunchesExternalBrowser);
}
string urlUsesRockImpersonation = reader.GetAttribute("UrlUsesRockImpersonation");
if (string.IsNullOrEmpty(urlUsesRockImpersonation) == false)
{
UrlUsesRockImpersonation = bool.Parse(urlUsesRockImpersonation);
}
// now read what our children's alignment should be
// check for alignment
string result = reader.GetAttribute("ChildAlignment");
if (string.IsNullOrEmpty(result) == false)
{
switch (result)
{
case "Left":
{
ChildHorzAlignment = Alignment.Left;
break;
}
case "Right":
{
ChildHorzAlignment = Alignment.Right;
break;
}
case "Center":
{
ChildHorzAlignment = Alignment.Center;
break;
}
default:
{
ChildHorzAlignment = mStyle.mAlignment.Value;
break;
}
}
}
else
{
// if it wasn't specified, use LEFT alignment.
ChildHorzAlignment = Alignment.Left;
}
bool removedLeadingWhitespace = false;
bool lastControlWasElement = false;
bool finishedReading = false;
while (finishedReading == false && reader.Read( ))
{
switch (reader.NodeType)
{
case XmlNodeType.Element:
{
IUIControl control = Parser.TryParseControl(new CreateParams(this, availableWidth, parentParams.Height, ref mStyle), reader);
if (control != null)
{
// if the last control was an element (NoteText or Reveal), then we have two in a row. So place a space between them!
if (lastControlWasElement)
{
NoteText textLabel = Parser.CreateNoteText(new CreateParams(this, availableWidth, parentParams.Height, ref mStyle), " ");
ChildControls.Add(textLabel);
}
// only allow RevealBoxes / NoteText as children.
if (control as RevealBox == null && control as NoteText == null)
{
throw new Exception(String.Format("Paragraph only supports children of type <RevealBox> or <NoteText>. Found <{0}>", control.GetType( )));
}
ChildControls.Add(control);
// flag that whitespace is removed, because either
// this was the first control and we didn't want to, or
// it was removed by the first text we created.
removedLeadingWhitespace = true;
// flag that the last control placed was a reveal, so that
// should we come across another one immediately, we know to insert a space
// so they don't render concatenated.
lastControlWasElement = true;
}
break;
}
case XmlNodeType.Text:
{
// give the text a style that doesn't include things it shouldn't inherit
Styles.Style textStyle = mStyle;
textStyle.mBorderColor = null;
textStyle.mBorderRadius = null;
textStyle.mBorderWidth = null;
// grab the text. remove any weird characters
string text = Regex.Replace(reader.Value, @"\t|\n|\r", "");
if (removedLeadingWhitespace == false)
{
removedLeadingWhitespace = true;
text = text.TrimStart(' ');
}
// now break it into words so we can do word wrapping
string[] words = text.Split(' ');
foreach (string word in words)
{
// create labels out of each one
if (string.IsNullOrEmpty(word) == false)
{
// if the last thing we added was a special control like a reveal box, we
// need the first label after that to have a leading space so it doesn't bunch up against
// the control
string nextWord = word;
if (lastControlWasElement)
{
nextWord = word.Insert(0, " ");
lastControlWasElement = false;
}
NoteText wordLabel = Parser.CreateNoteText(new CreateParams(this, availableWidth, parentParams.Height, ref textStyle), nextWord + " ");
ChildControls.Add(wordLabel);
}
}
lastControlWasElement = false;
break;
}
case XmlNodeType.EndElement:
{
// if we hit the end of our label, we're done.
//if( reader.Name == "Paragraph" || reader.Name == "P" )
if (ElementTagMatches(reader.Name))
{
finishedReading = true;
}
break;
}
}
}
// should we add a URL Glyph? We're gonna be clever and add it AS a NoteText, so that it integrates with the paragraph nicely.
// now add our glyph, if relevant
TryAddUrlGlyph(availableWidth, parentParams.Height);
// layout all controls
// paragraphs are tricky.
// We need to lay out controls horizontally and wrap when we run out of room.
// To align, we need to keep track of each "row". When the row is full,
// we calculate its width, and then adjust each item IN that row so
// that the row is centered within the max width of the paragraph.
// The max width of the paragraph is defined as the widest row.
// maintain a list of all our rows so that once they are all generated,
// we can align them based on the widest row.
float maxRowWidth = 0;
List <List <IUIControl> > rowList = new List <List <IUIControl> >( );
// track where within a row we need to start a control
float rowRemainingWidth = availableWidth;
float startingX = bounds.X + padding.Left + borderPaddingPx;
// always store the last placed control's height so that should
// our NEXT control need to wrap, we know how far down to wrap.
float yOffset = bounds.Y + padding.Top + borderPaddingPx;
float lastControlHeight = 0;
float rowWidth = 0;
//Create our first row and put it in our list
List <IUIControl> currentRow = new List <IUIControl>( );
rowList.Add(currentRow);
foreach (IUIControl control in ChildControls)
{
RectangleF controlFrame = control.GetFrame( );
// if there is NOT enough room on this row for the next control
if (rowRemainingWidth < controlFrame.Width)
{
// since we're advancing to the next row, trim leading white space, which, if we weren't wrapping,
// would be a space between words.
// note: we can safely cast to a NoteText because that's the only child type we allow.
string text = ((NoteText)control).GetText( ).TrimStart(' ');
((NoteText)control).SetText(text);
// advance to the next row
yOffset += lastControlHeight;
// Reset values for the new row
rowRemainingWidth = availableWidth;
startingX = bounds.X + padding.Left + borderPaddingPx;
lastControlHeight = 0;
rowWidth = 0;
currentRow = new List <IUIControl>( );
rowList.Add(currentRow);
}
// Add this next control to the current row
currentRow.Add(control);
// position this control appropriately
control.AddOffset(startingX, yOffset);
// update so the next child begins beyond this one.
// also reduce the available width by this control's.
rowWidth += controlFrame.Width;
startingX += controlFrame.Width; //Increment startingX so the next control is placed after this one.
rowRemainingWidth -= controlFrame.Width; //Reduce the available width by what this control took.
lastControlHeight = controlFrame.Height > lastControlHeight ? controlFrame.Height : lastControlHeight; //Store the height of the tallest control on this row.
// track the widest row
maxRowWidth = rowWidth > maxRowWidth ? rowWidth : maxRowWidth;
}
// give each row the legal bounds it may work with
RectangleF availableBounds = new RectangleF(bounds.X + padding.Left + borderPaddingPx,
bounds.Y + borderPaddingPx + padding.Top,
availableWidth,
bounds.Height);
// Now that we know the widest row, align all the rows
foreach (List <IUIControl> row in rowList)
{
AlignRow(availableBounds, row, maxRowWidth);
}
// Build our final frame that determines our dimensions
RectangleF frame = new RectangleF(65000, 65000, -65000, -65000);
// for each child control
foreach (IUIControl control in ChildControls)
{
// enlarge our frame by the current frame and the next child
frame = Parser.CalcBoundingFrame(frame, control.GetFrame( ));
}
frame.Y = bounds.Y;
frame.X = bounds.X;
frame.Height += padding.Height + padding.Top + (borderPaddingPx * 2); //add in padding
frame.Width = bounds.Width;
// setup our bounding rect for the border
frame = new RectangleF(frame.X,
frame.Y,
frame.Width,
frame.Height);
// and store that as our bounds
BorderView.Frame = frame;
Frame = frame;
SetDebugFrame(Frame);
// sort everything
ChildControls.Sort(BaseControl.Sort);
}
public List(CreateParams parentParams, XmlReader reader)
{
Initialize( );
// Always get our style first
mStyle = parentParams.Style;
Styles.Style.ParseStyleAttributesWithDefaults(reader, ref mStyle, ref ControlStyles.mList);
// check for attributes we support
RectangleF bounds = new RectangleF( );
SizeF parentSize = new SizeF(parentParams.Width, parentParams.Height);
ParseCommonAttribs(reader, ref parentSize, ref bounds);
// Get margins and padding
RectangleF padding;
RectangleF margin;
GetMarginsAndPadding(ref mStyle, ref parentSize, ref bounds, out margin, out padding);
// apply margins to as much of the bounds as we can (bottom must be done by our parent container)
ApplyImmediateMargins(ref bounds, ref margin, ref parentSize);
Margin = margin;
// check for border styling
int borderPaddingPx = 0;
if (mStyle.mBorderColor.HasValue)
{
BorderView.BorderColor = mStyle.mBorderColor.Value;
}
if (mStyle.mBorderRadius.HasValue)
{
BorderView.CornerRadius = mStyle.mBorderRadius.Value;
}
if (mStyle.mBorderWidth.HasValue)
{
BorderView.BorderWidth = mStyle.mBorderWidth.Value;
borderPaddingPx = (int)Rock.Mobile.Graphics.Util.UnitToPx(mStyle.mBorderWidth.Value + PrivateNoteConfig.BorderPadding);
}
if (mStyle.mBackgroundColor.HasValue)
{
BorderView.BackgroundColor = mStyle.mBackgroundColor.Value;
}
//
// convert indentation if it's a percentage
float listIndentation = mStyle.mListIndention.Value;
if (listIndentation < 1)
{
listIndentation = parentParams.Width * listIndentation;
}
// now calculate the available width based on padding. (Don't actually change our width)
// also consider the indention amount of the list.
float availableWidth = bounds.Width - padding.Left - padding.Width - listIndentation - (borderPaddingPx * 2);
// parse for the desired list style. Default to Bullet if they didn't put anything.
ListType = reader.GetAttribute("Type");
if (string.IsNullOrEmpty(ListType) == true)
{
ListType = ListTypeBullet;
}
// Parse Child Controls
int numberedCount = 1;
// don't force our alignment, borders, bullet style or indentation on children.
Style style = new Style( );
style = mStyle;
style.mAlignment = null;
style.mListIndention = null;
style.mListBullet = null;
style.mBorderColor = null;
style.mBorderRadius = null;
style.mBorderWidth = null;
bool finishedParsing = false;
while (finishedParsing == false && reader.Read( ))
{
switch (reader.NodeType)
{
case XmlNodeType.Element:
{
// Create the prefix for this list item.
string listItemPrefixStr = mStyle.mListBullet + " ";
if (ListType == ListTypeNumbered)
{
listItemPrefixStr = numberedCount.ToString() + ". ";
}
NoteText textLabel = Parser.CreateNoteText(new CreateParams(this, availableWidth, parentParams.Height, ref style), listItemPrefixStr);
ChildControls.Add(textLabel);
// create our actual child, but throw an exception if it's anything but a ListItem.
IUIControl control = Parser.TryParseControl(new CreateParams(this, availableWidth - textLabel.GetFrame().Width, parentParams.Height, ref style), reader);
ListItem listItem = control as ListItem;
if (listItem == null)
{
throw new Exception(String.Format("Only a <ListItem> may be a child of a <List>. Found element <{0}>.", control.GetType( )));
}
// if it will actually use the bullet point, increment our count.
if (listItem.ShouldShowBulletPoint() == true)
{
numberedCount++;
}
else
{
// otherwise give it a blank space, and keep our count the same.
textLabel.SetText(" ");
}
// and finally add the actual list item.
ChildControls.Add(control);
break;
}
case XmlNodeType.EndElement:
{
// if we hit the end of our label, we're done.
//if( reader.Name == "List" || reader.Name == "L" )
if (ElementTagMatches(reader.Name))
{
finishedParsing = true;
}
break;
}
}
}
// layout all controls
float xAdjust = bounds.X + listIndentation;
float yOffset = bounds.Y + padding.Top + borderPaddingPx; //vertically they should just stack
// we know each child is a NoteText followed by ListItem. So, lay them out
// as: * - ListItem
// * - ListItem
foreach (IUIControl control in ChildControls)
{
// position the control
control.AddOffset(xAdjust + padding.Left + borderPaddingPx, yOffset);
RectangleF controlFrame = control.GetFrame( );
RectangleF controlMargin = control.GetMargin( );
// is this the item prefix?
if ((control as NoteText) != null)
{
// and update xAdjust so the actual item starts after.
xAdjust += controlFrame.Width;
}
else
{
// reset the values for the next line.
xAdjust = bounds.X + listIndentation;
yOffset = controlFrame.Bottom + controlMargin.Height;
}
}
// we need to store our bounds. We cannot
// calculate them on the fly because we
// would lose any control defined offsets, which would throw everything off.
bounds.Height = (yOffset - bounds.Y) + padding.Height + borderPaddingPx;
Frame = bounds;
BorderView.Frame = bounds;
// store our debug frame
SetDebugFrame(Frame);
// sort everything
ChildControls.Sort(BaseControl.Sort);
}
