/**
* Reloads a list section within the long list selector items source.
*/
public void ReloadListSection(ListViewSection section)
{
if (mListSections.Count > section.ItemsSourceSectionIndex)
{
ListSection<ListItem> sectionToReload = mListSections[section.ItemsSourceSectionIndex];
sectionToReload.Title = section.Title;
sectionToReload.Header = section.Header;
sectionToReload.HeaderColor = section.GetHeaderBackgroundColor();
sectionToReload.HeaderFontColor = section.GetHeaderFontColor();
sectionToReload.HeaderFontFamily = section.GetHeaderFontFamily();
sectionToReload.HeaderFontSize = section.GetHeaderFontSize();
sectionToReload.HeaderFontStyle = section.GetHeaderFontStyle();
sectionToReload.HeaderFontWeight = section.GetHeaderFontWeight();
sectionToReload.HeaderTextHorizontalAlignment = section.GetHeaderHorizontalAlignment();
sectionToReload.HeaderTextVerticalAlignment = section.GetHeaderVerticalAlignment();
sectionToReload.Footer = section.Footer;
sectionToReload.FooterColor = section.GetFooterBackgroundColor();
sectionToReload.FooterFontColor = section.GetFooterFontColor();
sectionToReload.FooterFontFamily = section.GetFooterFontFamily();
sectionToReload.FooterFontSize = section.GetFooterFontSize();
sectionToReload.FooterFontStyle = section.GetFooterFontStyle();
sectionToReload.FooterFontWeight = section.GetFooterFontWeight();
sectionToReload.FooterTextHorizontalAlignment = section.GetFooterHorizontalAlignment();
sectionToReload.FooterTextVerticalAlignment = section.GetFooterVerticalAlignment();
sectionToReload.GroupHeaderColor = section.GetGroupHeaderBackgroundColor();
mListSections[section.ItemsSourceSectionIndex] = sectionToReload;
}
}
/**
* Reloads a list item within the long list selector items source.
*/
public void ReloadListItem(ListViewSection section, ListViewItem item)
{
if (mListSections.Count > section.ItemsSourceSectionIndex)
{
ListSection<ListItem> sectionToReload = mListSections[section.ItemsSourceSectionIndex];
if (sectionToReload.Count > item.ItemsSourceItemIndex)
{
ListItem itemToReload = sectionToReload[item.ItemsSourceItemIndex];
itemToReload.Height = item.Height;
itemToReload.Width = item.Width;
itemToReload.Title = item.Text;
itemToReload.Subtitle = item.Subtitle;
itemToReload.FontSize = item.GetFontSize();
itemToReload.FontColor = item.GetFontColor();
itemToReload.SubtitleFontColor = item.GetSubtitleFontColor();
if (mListViewStyle == ListViewStyle.NoSubtitle)
{
itemToReload.SubtitleVisibility = Visibility.Collapsed;
}
else
{
itemToReload.SubtitleVisibility = Visibility.Visible;
}
itemToReload.ImageSource = item.IconImageSource;
sectionToReload[item.ItemsSourceItemIndex] = itemToReload;
}
}
}
/**
* Creates a section model from the added widget.
*/
private ListSection<ListItem> CreateSectionModelFromWidget(ListViewSection section)
{
ListSection<ListItem> currentSection = new ListSection<ListItem>();
currentSection.Title = section.Title;
currentSection.Header = section.Header;
currentSection.Footer = section.Footer;
currentSection.HeaderColor = section.GetHeaderBackgroundColor();
currentSection.HeaderFontColor = section.GetHeaderFontColor();
currentSection.HeaderFontFamily = section.GetHeaderFontFamily();
currentSection.HeaderFontSize = section.GetHeaderFontSize();
currentSection.HeaderFontStyle = section.GetHeaderFontStyle();
currentSection.HeaderFontWeight = section.GetHeaderFontWeight();
currentSection.HeaderTextHorizontalAlignment = section.GetHeaderHorizontalAlignment();
currentSection.HeaderTextVerticalAlignment = section.GetHeaderVerticalAlignment();
currentSection.Footer = section.Footer;
currentSection.FooterColor = section.GetFooterBackgroundColor();
currentSection.FooterFontColor = section.GetFooterFontColor();
currentSection.FooterFontFamily = section.GetFooterFontFamily();
currentSection.FooterFontSize = section.GetFooterFontSize();
currentSection.FooterFontStyle = section.GetFooterFontStyle();
currentSection.FooterFontWeight = section.GetFooterFontWeight();
currentSection.FooterTextHorizontalAlignment = section.GetFooterHorizontalAlignment();
currentSection.FooterTextVerticalAlignment = section.GetFooterVerticalAlignment();
currentSection.GroupHeaderColor = section.GetGroupHeaderBackgroundColor();
for (int i = 0; i < section.ChildrenCount; i++ )
{
IWidget widget = section.GetChild(i);
if (widget is ListViewItem)
{
ListViewItem listItem = widget as ListViewItem;
ListItem newItem = new ListItem();
newItem.Height = listItem.Height;
newItem.Width = listItem.Width;
newItem.Title = listItem.Text;
newItem.Subtitle = listItem.Subtitle;
newItem.FontSize = listItem.GetFontSize();
newItem.FontColor = listItem.GetFontColor();
newItem.SubtitleFontColor = listItem.GetSubtitleFontColor();
if (mListViewStyle == ListViewStyle.NoSubtitle)
{
newItem.SubtitleVisibility = Visibility.Collapsed;
}
else
{
newItem.SubtitleVisibility = Visibility.Visible;
}
newItem.ImageSource = listItem.IconImageSource;
listItem.ItemsSourceItemIndex = currentSection.Count;
currentSection.Add(newItem);
mModelToItemWidgetMap.Add(newItem.UniqueID, listItem);
}
}
return currentSection;
}
/**
* Asks for the parent section to reload the list view model item.
*/
public void ReloadParentListItem()
{
if (mParent is ListViewSection)
{
ListViewSection parentSection = mParent as ListViewSection;
parentSection.ReloadParentItem(this);
}
}
/**
* Reloads all the section items within the long list selector items source.
*/
public void ReloadListSectionMembers(ListViewSection section)
{
if (mListSections.Count > section.ItemsSourceSectionIndex)
{
// TODO SA: this could be more performant
mListSections[section.ItemsSourceSectionIndex] = CreateSectionModelFromWidget(section);
}
}
/**
* Adds a ListViewSection to the LongListSelector.
* @param section The list view section to be added.
*/
private void AddListSection(ListViewSection section)
{
base.AddChild(section);
MoSync.Util.RunActionOnMainThreadSync(() =>
{
section.ListStyle = mListViewStyle;
ListSection<ListItem> sectionModel = CreateSectionModelFromWidget(section);
section.ItemsSourceSectionIndex = mListSections.Count;
mListSections.Add(sectionModel);
section.SectionIndex = mListSections.Count - 1;
});
}
/**
* Rebuilds the list model.
*/
public void RebuildList()
{
mListSections = new ObservableCollection<ListSection<ListItem>>();
foreach (IWidget widget in mChildren)
{
if (widget is ListViewSection)
{
ListViewSection section = widget as ListViewSection;
ListSection<ListItem> sectionModel = CreateSectionModelFromWidget(section);
mListSections.Add(sectionModel);
}
}
ReloadListData();
}
/**
* Inserts a list view section at a certain index.
* @param child The widget to be added to the list.
* @param index The index where the widget should be added.
*/
private void InsertListSection(ListViewSection section, int index)
{
base.InsertChild(section, index);
MoSync.Util.RunActionOnMainThreadSync(() =>
{
section.ListStyle = mListViewStyle;
ListSection<ListItem> sectionModel = CreateSectionModelFromWidget(section);
section.ItemsSourceSectionIndex = index;
mListSections.Insert(index, sectionModel);
section.SectionIndex = index;
// update the section indexes for all the sections after the inserted one
for (int i = index + 1; i < mChildren.Count; i++)
{
if (mChildren[i] is ListViewSection)
{
(mChildren[i] as ListViewSection).ItemsSourceSectionIndex++;
}
}
});
}
/**
* Reloads all the section items within the long list selector items source.
*/
public void ReloadListSectionMembers(ListViewSection section)
{
if (mListSections.Count > section.ItemsSourceSectionIndex)
{
// TODO SA: this could be more performant
mListSections[section.ItemsSourceSectionIndex] = CreateSectionModelFromWidget(section);
}
}
/**
* Reloads a list item within the long list selector items source.
*/
public void ReloadListItem(ListViewSection section, ListViewItem item)
{
if (mListSections.Count > section.ItemsSourceSectionIndex)
{
ListSection<ListItem> sectionToReload = mListSections[section.ItemsSourceSectionIndex];
if (sectionToReload.Count > item.ItemsSourceItemIndex)
{
ListItem itemToReload = sectionToReload[item.ItemsSourceItemIndex];
itemToReload.Height = item.Height;
itemToReload.Width = item.Width;
itemToReload.Title = item.Text;
itemToReload.Subtitle = item.Subtitle;
itemToReload.FontSize = item.GetFontSize();
itemToReload.FontColor = item.GetFontColor();
itemToReload.SubtitleFontColor = item.GetSubtitleFontColor();
if (mListViewStyle == ListViewStyle.NoSubtitle)
{
itemToReload.SubtitleVisibility = Visibility.Collapsed;
}
else
{
itemToReload.SubtitleVisibility = Visibility.Visible;
}
itemToReload.ImageSource = item.IconImageSource;
sectionToReload[item.ItemsSourceItemIndex] = itemToReload;
}
}
}
/**
* Reloads a list section within the long list selector items source.
*/
public void ReloadListSection(ListViewSection section)
{
if (mListSections.Count > section.ItemsSourceSectionIndex)
{
ListSection<ListItem> sectionToReload = mListSections[section.ItemsSourceSectionIndex];
sectionToReload.Title = section.Title;
sectionToReload.Header = section.Header;
sectionToReload.HeaderColor = section.GetHeaderBackgroundColor();
sectionToReload.HeaderFontColor = section.GetHeaderFontColor();
sectionToReload.HeaderFontFamily = section.GetHeaderFontFamily();
sectionToReload.HeaderFontSize = section.GetHeaderFontSize();
sectionToReload.HeaderFontStyle = section.GetHeaderFontStyle();
sectionToReload.HeaderFontWeight = section.GetHeaderFontWeight();
sectionToReload.HeaderTextHorizontalAlignment = section.GetHeaderHorizontalAlignment();
sectionToReload.HeaderTextVerticalAlignment = section.GetHeaderVerticalAlignment();
sectionToReload.Footer = section.Footer;
sectionToReload.FooterColor = section.GetFooterBackgroundColor();
sectionToReload.FooterFontColor = section.GetFooterFontColor();
sectionToReload.FooterFontFamily = section.GetFooterFontFamily();
sectionToReload.FooterFontSize = section.GetFooterFontSize();
sectionToReload.FooterFontStyle = section.GetFooterFontStyle();
sectionToReload.FooterFontWeight = section.GetFooterFontWeight();
sectionToReload.FooterTextHorizontalAlignment = section.GetFooterHorizontalAlignment();
sectionToReload.FooterTextVerticalAlignment = section.GetFooterVerticalAlignment();
sectionToReload.GroupHeaderColor = section.GetGroupHeaderBackgroundColor();
mListSections[section.ItemsSourceSectionIndex] = sectionToReload;
}
}
/**
* Creates a section model from the added widget.
*/
private ListSection<ListItem> CreateSectionModelFromWidget(ListViewSection section)
{
ListSection<ListItem> currentSection = new ListSection<ListItem>();
currentSection.Title = section.Title;
currentSection.Header = section.Header;
currentSection.Footer = section.Footer;
currentSection.HeaderColor = section.GetHeaderBackgroundColor();
currentSection.HeaderFontColor = section.GetHeaderFontColor();
currentSection.HeaderFontFamily = section.GetHeaderFontFamily();
currentSection.HeaderFontSize = section.GetHeaderFontSize();
currentSection.HeaderFontStyle = section.GetHeaderFontStyle();
currentSection.HeaderFontWeight = section.GetHeaderFontWeight();
currentSection.HeaderTextHorizontalAlignment = section.GetHeaderHorizontalAlignment();
currentSection.HeaderTextVerticalAlignment = section.GetHeaderVerticalAlignment();
currentSection.Footer = section.Footer;
currentSection.FooterColor = section.GetFooterBackgroundColor();
currentSection.FooterFontColor = section.GetFooterFontColor();
currentSection.FooterFontFamily = section.GetFooterFontFamily();
currentSection.FooterFontSize = section.GetFooterFontSize();
currentSection.FooterFontStyle = section.GetFooterFontStyle();
currentSection.FooterFontWeight = section.GetFooterFontWeight();
currentSection.FooterTextHorizontalAlignment = section.GetFooterHorizontalAlignment();
currentSection.FooterTextVerticalAlignment = section.GetFooterVerticalAlignment();
currentSection.GroupHeaderColor = section.GetGroupHeaderBackgroundColor();
for (int i = 0; i < section.ChildrenCount; i++ )
{
IWidget widget = section.GetChild(i);
if (widget is ListViewItem)
{
ListViewItem listItem = widget as ListViewItem;
ListItem newItem = new ListItem();
newItem.Height = listItem.Height;
newItem.Width = listItem.Width;
newItem.Title = listItem.Text;
newItem.Subtitle = listItem.Subtitle;
newItem.FontSize = listItem.GetFontSize();
newItem.FontColor = listItem.GetFontColor();
newItem.SubtitleFontColor = listItem.GetSubtitleFontColor();
if (mListViewStyle == ListViewStyle.NoSubtitle)
{
newItem.SubtitleVisibility = Visibility.Collapsed;
}
else
{
newItem.SubtitleVisibility = Visibility.Visible;
}
newItem.ImageSource = listItem.IconImageSource;
listItem.ItemsSourceItemIndex = currentSection.Count;
currentSection.Add(newItem);
mModelToItemWidgetMap.Add(newItem.UniqueID, listItem);
}
}
return currentSection;
}
/**
* Inserts a list view section at a certain index.
* @param child The widget to be added to the list.
* @param index The index where the widget should be added.
*/
private void InsertListSection(ListViewSection section, int index)
{
base.InsertChild(section, index);
MoSync.Util.RunActionOnMainThreadSync(() =>
{
section.ListStyle = mListViewStyle;
ListSection<ListItem> sectionModel = CreateSectionModelFromWidget(section);
section.ItemsSourceSectionIndex = index;
mListSections.Insert(index, sectionModel);
section.SectionIndex = index;
// update the section indexes for all the sections after the inserted one
for (int i = index + 1; i < mChildren.Count; i++)
{
if (mChildren[i] is ListViewSection)
{
(mChildren[i] as ListViewSection).ItemsSourceSectionIndex++;
}
}
});
}
/**
* Adds a ListViewSection to the LongListSelector.
* @param section The list view section to be added.
*/
private void AddListSection(ListViewSection section)
{
base.AddChild(section);
MoSync.Util.RunActionOnMainThreadSync(() =>
{
section.ListStyle = mListViewStyle;
ListSection<ListItem> sectionModel = CreateSectionModelFromWidget(section);
section.ItemsSourceSectionIndex = mListSections.Count;
mListSections.Add(sectionModel);
section.SectionIndex = mListSections.Count - 1;
});
}
/**
* Outputs the index of the section in focus and the index of the selected item
* within that section.
*/
private void GetSectionAndSelectedItemIndex(out int sectionIndex, out int itemIndex)
{
// we need to find the selected item through the LongListSelector
// items source and through the child widgets aswell in order to
// set its selected state
sectionIndex = -1;
itemIndex = -1;
// we need to first find the selected item index and its section index
// within the long list selector items source
int itemsSourceSectionIndex = -1;
int itemsSourceItemIndex = -1;
for (int i = 0; i < mListSections.Count; i++)
{
ListSection<ListItem> section = mListSections[i];
int index = section.IndexOf(mLongListSelector.SelectedItem as ListItem);
if ( index >= 0)
{
itemsSourceSectionIndex = i;
itemsSourceItemIndex = index;
}
// deselect all the items
for (int j = 0; j < section.Count; j++)
{
section[j].FontColor = mModelToItemWidgetMap[section[j].UniqueID].GetFontColor();
section[j].SubtitleFontColor = mModelToItemWidgetMap[section[j].UniqueID].GetSubtitleFontColor();
}
}
// select the current item
SolidColorBrush phoneAccentBrush = Application.Current.Resources["PhoneAccentBrush"] as SolidColorBrush;
(mLongListSelector.SelectedItem as ListItem).FontColor = phoneAccentBrush;
(mLongListSelector.SelectedItem as ListItem).SubtitleFontColor = phoneAccentBrush;
// set the coresponding list view item widget selection status
ListViewItem selectedItem = mModelToItemWidgetMap[(mLongListSelector.SelectedItem as ListItem).UniqueID];
selectedItem.ItemSelected = true;
if (mLastSelectedItemWidget != null)
{
mLastSelectedItemWidget.ItemSelected = false;
}
mLastSelectedItemWidget = selectedItem;
// then we need to go through the widget children and find
// the section/item that match the section/item indexes within
// the items source
for (int i = 0; i < mChildren.Count; i++)
{
if (mChildren[i] is ListViewSection)
{
ListViewSection section = mChildren[i] as ListViewSection;
if (section.ItemsSourceSectionIndex == itemsSourceSectionIndex)
{
for (int j = 0; j < section.ChildrenCount; j++)
{
if (section.GetChild(j) is ListViewItem)
{
ListViewItem item = section.GetChild(j) as ListViewItem;
if (item.ItemsSourceItemIndex == itemsSourceItemIndex)
{
sectionIndex = i;
itemIndex = j;
}
}
}
}
}
}
}
