/// <summary>
/// Create thumb for page number, if it isn't exists
/// </summary>
/// <param name="pageNumber">Page number</param>
/// <returns></returns>
private ThumbWithPageNumberView CreateThumbForPageIfNotExists(int pageNumber)
{
if ((pageNumber <= 0) || (pageNumber > PDFDocument.PageCount))
{
return(null);
}
// Checks thumb existing
foreach (var thumbView in _ThumbViews)
{
if (thumbView.PageNumber == pageNumber)
{
return(thumbView);
}
}
// Create new thumb
RectangleF viewRect = GetThumbFrameByPage(pageNumber);
var newThumbView = new ThumbWithPageNumberView(viewRect, pageNumber, ThumbSelected);
if (pageNumber == PDFDocument.CurrentPageNumber)
{
_CurrentThumbView = newThumbView;
newThumbView.SetAsSelected();
}
// Insert view to first or last position of the list (according direction)
_ScrollView.AddSubview(newThumbView);
if (_ScrollDirection > 0)
{
_ThumbViews.Add(newThumbView);
}
else
{
_ThumbViews.Insert(0, newThumbView);
}
#if DEBUG
WriteMessageToDebugLog("CreateThumb", string.Format("page={0}, viewRect={1}", pageNumber, viewRect));
#endif
// Pack thumbs size to ThumbsBufferSize (only one extra item can be created - remove it)
if (_ThumbViews.Count > MgrAccessor.OptionsMgr.Options.ThumbsBufferSize)
{
// Remove view from first or last position of the list (according direction)
if (_ScrollDirection > 0)
{
_ThumbViews [0].RemoveFromSuperview();
_ThumbViews.RemoveAt(0);
}
else
{
_ThumbViews [_ThumbViews.Count - 1].RemoveFromSuperview();
_ThumbViews.RemoveAt(_ThumbViews.Count - 1);
}
}
#if DEBUG
WriteMessageToDebugLog("CreateThumb", string.Format("currentBufferSize={0}", _ThumbViews.Count));
#endif
return(newThumbView);
}
/// <summary>
/// Callback called when user clicks by thumb
/// </summary>
/// <param name="thumbView">Clicked thumb</param>
private void ThumbSelected(ThumbWithPageNumberView thumbView)
{
if (thumbView != _CurrentThumbView)
{
// Unselect old thumb
if (_CurrentThumbView != null)
{
_CurrentThumbView.SetAsUnselected();
}
// Select and store current thumb
_CurrentThumbView = thumbView;
_CurrentThumbView.SetAsSelected();
// Open selected page
_OpenPageCallback(_CurrentThumbView.PageNumber);
}
}
/// <summary>
/// Callback called when user clicks by thumb
/// </summary>
/// <param name="thumbView">Clicked thumb</param>
private void ThumbSelected(ThumbWithPageNumberView thumbView)
{
if (thumbView != _CurrentThumbView) {
// Unselect old thumb
if (_CurrentThumbView != null) {
_CurrentThumbView.SetAsUnselected();
}
// Select and store current thumb
_CurrentThumbView = thumbView;
_CurrentThumbView.SetAsSelected();
// Open selected page
_OpenPageCallback(_CurrentThumbView.PageNumber);
}
}
/// <summary>
/// Create thumb for page number, if it isn't exists
/// </summary>
/// <param name="pageNumber">Page number</param>
/// <returns></returns>
private ThumbWithPageNumberView CreateThumbForPageIfNotExists(int pageNumber)
{
if ((pageNumber <= 0) || (pageNumber > PDFDocument.PageCount)) {
return null;
}
// Checks thumb existing
foreach (var thumbView in _ThumbViews) {
if (thumbView.PageNumber == pageNumber) {
return thumbView;
}
}
// Create new thumb
RectangleF viewRect = GetThumbFrameByPage(pageNumber);
var newThumbView = new ThumbWithPageNumberView(viewRect, pageNumber, ThumbSelected);
if (pageNumber == PDFDocument.CurrentPageNumber) {
_CurrentThumbView = newThumbView;
newThumbView.SetAsSelected();
}
// Insert view to first or last position of the list (according direction)
_ScrollView.AddSubview(newThumbView);
if (_ScrollDirection > 0) {
_ThumbViews.Add(newThumbView);
} else {
_ThumbViews.Insert(0, newThumbView);
}
#if DEBUG
WriteMessageToDebugLog("CreateThumb", string.Format("page={0}, viewRect={1}", pageNumber, viewRect));
#endif
// Pack thumbs size to ThumbsBufferSize (only one extra item can be created - remove it)
if (_ThumbViews.Count > MgrAccessor.OptionsMgr.Options.ThumbsBufferSize) {
// Remove view from first or last position of the list (according direction)
if (_ScrollDirection > 0) {
_ThumbViews [0].RemoveFromSuperview();
_ThumbViews.RemoveAt(0);
} else {
_ThumbViews [_ThumbViews.Count - 1].RemoveFromSuperview();
_ThumbViews.RemoveAt(_ThumbViews.Count - 1);
}
}
#if DEBUG
WriteMessageToDebugLog("CreateThumb", string.Format("currentBufferSize={0}", _ThumbViews.Count));
#endif
return newThumbView;
}
private void thumbSelected(ThumbWithPageNumberView thumbView)
{
thumbView.SetAsSelected();
_openPageCallback(thumbView.PageNumber);
DismissViewController(true, null);
}
private void createThumbsPage(int thumbsPageNumber)
{
var thumbsPageInfo = getThumbsPageInfo();
var thumbViews = new List<UIView>();
var pageNumber = ThumbCols * thumbsPageInfo.ThumbRows * thumbsPageNumber + 1;
var top = ThumbMargin;
for (var r = 0; r < thumbsPageInfo.ThumbRows; r++) {
var left = ThumbMargin;
for (var c = 0; c < ThumbCols; c++) {
var thumbRect = new RectangleF(left, top, thumbsPageInfo.ThumbSize, thumbsPageInfo.ThumbSize);
var thumbView = new ThumbWithPageNumberView(thumbRect, pageNumber, thumbSelected);
if (pageNumber == PDFDocument.CurrentPageNumber) {
thumbView.SetAsSelected();
}
thumbViews.Add(thumbView);
left += thumbsPageInfo.ThumbSize + ThumbMargin;
pageNumber++;
if (pageNumber > PDFDocument.PageCount) {
break;
}
}
top += thumbsPageInfo.ThumbSize + ThumbMargin;
if (pageNumber > PDFDocument.PageCount) {
break;
}
}
foreach (var view in _thumbsViewContainer.Subviews) {
view.RemoveFromSuperview();
}
_thumbsViewContainer.AddSubviews(thumbViews.ToArray());
}
