Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $NoKeywords: $
//=============================================================================//
#include "vgui/MouseCode.h"
#include "vgui/IInput.h"
#include "vgui/IScheme.h"
#include "vgui/ISurface.h"
#include "vgui_controls/EditablePanel.h"
#include "vgui_controls/ScrollBar.h"
#include "vgui_controls/Label.h"
#include "vgui_controls/Button.h"
#include "vgui_controls/Controls.h"
#include "vgui_controls/PanelListPanel.h"
#include "KeyValues.h"
// memdbgon must be the last include file in a .cpp file!!!
#include "tier0/memdbgon.h"
using namespace vgui;
DECLARE_BUILD_FACTORY( PanelListPanel );
//-----------------------------------------------------------------------------
// Purpose: Constructor
//-----------------------------------------------------------------------------
PanelListPanel::PanelListPanel( vgui::Panel *parent, char const *panelName ) : EditablePanel( parent, panelName )
{
SetBounds( 0, 0, 100, 100 );
m_vbar = new ScrollBar(this, "PanelListPanelVScroll", true);
m_vbar->SetVisible(false);
m_vbar->AddActionSignalTarget( this );
m_pPanelEmbedded = new EditablePanel(this, "PanelListEmbedded");
m_pPanelEmbedded->SetBounds(0, 0, 20, 20);
m_pPanelEmbedded->SetPaintBackgroundEnabled( false );
m_pPanelEmbedded->SetPaintBorderEnabled(false);
m_iFirstColumnWidth = 100; // default width
m_iNumColumns = 1; // 1 column by default
if ( IsProportional() )
{
m_iDefaultHeight = scheme()->GetProportionalScaledValueEx( GetScheme(), DEFAULT_HEIGHT );
m_iPanelBuffer = scheme()->GetProportionalScaledValueEx( GetScheme(), PANELBUFFER );
}
else
{
m_iDefaultHeight = DEFAULT_HEIGHT;
m_iPanelBuffer = PANELBUFFER;
}
}
//-----------------------------------------------------------------------------
// Purpose: Destructor
//-----------------------------------------------------------------------------
PanelListPanel::~PanelListPanel()
{
// free data from table
DeleteAllItems();
}
void PanelListPanel::SetVerticalBufferPixels( int buffer )
{
m_iPanelBuffer = buffer;
InvalidateLayout();
}
//-----------------------------------------------------------------------------
// Purpose: counts the total vertical pixels
//-----------------------------------------------------------------------------
int PanelListPanel::ComputeVPixelsNeeded()
{
int iCurrentItem = 0;
int iLargestH = 0;
int pixels = 0;
for ( int i = 0; i < m_SortedItems.Count(); i++ )
{
Panel *panel = m_DataItems[ m_SortedItems[i] ].panel;
if ( !panel )
continue;
if ( panel->IsLayoutInvalid() )
{
panel->InvalidateLayout( true );
}
int iCurrentColumn = iCurrentItem % m_iNumColumns;
int w, h;
panel->GetSize( w, h );
if ( iLargestH < h )
iLargestH = h;
if ( iCurrentColumn == 0 )
pixels += m_iPanelBuffer; // add in buffer. between rows.
if ( iCurrentColumn >= m_iNumColumns - 1 )
{
pixels += iLargestH;
iLargestH = 0;
}
iCurrentItem++;
}
// Add in remaining largest height
pixels += iLargestH;
pixels += m_iPanelBuffer; // add in buffer below last item
return pixels;
}
//-----------------------------------------------------------------------------
// Purpose: Returns the panel to use to render a cell
//-----------------------------------------------------------------------------
Panel *PanelListPanel::GetCellRenderer( int row )
{
if ( !m_SortedItems.IsValidIndex(row) )
return NULL;
Panel *panel = m_DataItems[ m_SortedItems[row] ].panel;
return panel;
}
//-----------------------------------------------------------------------------
// Purpose: adds an item to the view
// data->GetName() is used to uniquely identify an item
// data sub items are matched against column header name to be used in the table
//-----------------------------------------------------------------------------
int PanelListPanel::AddItem( Panel *labelPanel, Panel *panel )
{
Assert(panel);
if ( labelPanel )
{
labelPanel->SetParent( m_pPanelEmbedded );
}
panel->SetParent( m_pPanelEmbedded );
int itemID = m_DataItems.AddToTail();
DATAITEM &newitem = m_DataItems[itemID];
newitem.labelPanel = labelPanel;
newitem.panel = panel;
m_SortedItems.AddToTail(itemID);
InvalidateLayout();
return itemID;
}
//-----------------------------------------------------------------------------
// Purpose: iteration accessor
//-----------------------------------------------------------------------------
int PanelListPanel::GetItemCount() const
{
return m_DataItems.Count();
}
int PanelListPanel::GetItemIDFromRow( int nRow ) const
{
if ( nRow < 0 || nRow >= GetItemCount() )
return m_DataItems.InvalidIndex();
return m_SortedItems[ nRow ];
}
//-----------------------------------------------------------------------------
// Iteration. Use these until they return InvalidItemID to iterate all the items.
//-----------------------------------------------------------------------------
int PanelListPanel::FirstItem() const
{
return m_DataItems.Head();
}
int PanelListPanel::NextItem( int nItemID ) const
{
return m_DataItems.Next( nItemID );
}
int PanelListPanel::InvalidItemID() const
{
return m_DataItems.InvalidIndex( );
}
//-----------------------------------------------------------------------------
// Purpose: returns label panel for this itemID
//-----------------------------------------------------------------------------
Panel *PanelListPanel::GetItemLabel(int itemID)
{
if ( !m_DataItems.IsValidIndex(itemID) )
return NULL;
return m_DataItems[itemID].labelPanel;
}
//-----------------------------------------------------------------------------
// Purpose: returns label panel for this itemID
//-----------------------------------------------------------------------------
Panel *PanelListPanel::GetItemPanel(int itemID)
{
if ( !m_DataItems.IsValidIndex(itemID) )
return NULL;
return m_DataItems[itemID].panel;
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void PanelListPanel::RemoveItem(int itemID)
{
if ( !m_DataItems.IsValidIndex(itemID) )
return;
DATAITEM &item = m_DataItems[itemID];
if ( item.panel )
{
item.panel->MarkForDeletion();
}
if ( item.labelPanel )
{
item.labelPanel->MarkForDeletion();
}
m_DataItems.Remove(itemID);
m_SortedItems.FindAndRemove(itemID);
InvalidateLayout();
}
//-----------------------------------------------------------------------------
// Purpose: clears and deletes all the memory used by the data items
//-----------------------------------------------------------------------------
void PanelListPanel::DeleteAllItems()
{
FOR_EACH_LL( m_DataItems, i )
{
if ( m_DataItems[i].panel )
{
m_DataItems[i].panel->MarkForDeletion();
m_DataItems[i].panel = NULL;
}
}
m_DataItems.RemoveAll();
m_SortedItems.RemoveAll();
InvalidateLayout();
}
//-----------------------------------------------------------------------------
// Purpose: clears and deletes all the memory used by the data items
//-----------------------------------------------------------------------------
void PanelListPanel::RemoveAll()
{
m_DataItems.RemoveAll();
m_SortedItems.RemoveAll();
// move the scrollbar to the top of the list
m_vbar->SetValue(0);
InvalidateLayout();
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void PanelListPanel::OnSizeChanged(int wide, int tall)
{
BaseClass::OnSizeChanged(wide, tall);
InvalidateLayout();
Repaint();
}
//-----------------------------------------------------------------------------
// Purpose: relayouts out the panel after any internal changes
//-----------------------------------------------------------------------------
void PanelListPanel::PerformLayout()
{
int wide, tall;
GetSize( wide, tall );
int vpixels = ComputeVPixelsNeeded();
m_vbar->SetRange( 0, vpixels );
m_vbar->SetRangeWindow( tall );
m_vbar->SetButtonPressedScrollValue( tall / 4 ); // standard height of labels/buttons etc.
m_vbar->SetPos( wide - m_vbar->GetWide() - 2, 0 );
m_vbar->SetSize( m_vbar->GetWide(), tall - 2 );
int top = m_vbar->GetValue();
m_pPanelEmbedded->SetPos( 0, -top );
m_pPanelEmbedded->SetSize( wide - m_vbar->GetWide(), vpixels ); // scrollbar will sit on top (zpos set explicitly)
bool bScrollbarVisible = true;
// If we're supposed to automatically hide the scrollbar when unnecessary, check it now
if ( m_bAutoHideScrollbar )
{
bScrollbarVisible = (m_pPanelEmbedded->GetTall() > tall);
}
m_vbar->SetVisible( bScrollbarVisible );
// Now lay out the controls on the embedded panel
int y = 0;
int h = 0;
int totalh = 0;
int xpos = m_iFirstColumnWidth + m_iPanelBuffer;
int iColumnWidth = ( wide - xpos - m_vbar->GetWide() - 12 ) / m_iNumColumns;
for ( int i = 0; i < m_SortedItems.Count(); i++ )
{
int iCurrentColumn = i % m_iNumColumns;
// add in a little buffer between panels
if ( iCurrentColumn == 0 )
y += m_iPanelBuffer;
DATAITEM &item = m_DataItems[ m_SortedItems[i] ];
if ( h < item.panel->GetTall() )
h = item.panel->GetTall();
if ( item.labelPanel )
{
item.labelPanel->SetBounds( 0, y, m_iFirstColumnWidth, item.panel->GetTall() );
}
item.panel->SetBounds( xpos + iCurrentColumn * iColumnWidth, y, iColumnWidth, item.panel->GetTall() );
if ( iCurrentColumn >= m_iNumColumns - 1 )
{
y += h;
totalh += h;
h = 0;
}
}
}
//-----------------------------------------------------------------------------
// Purpose: scheme settings
//-----------------------------------------------------------------------------
void PanelListPanel::ApplySchemeSettings(IScheme *pScheme)
{
BaseClass::ApplySchemeSettings(pScheme);
SetBorder(pScheme->GetBorder("ButtonDepressedBorder"));
SetBgColor(GetSchemeColor("ListPanel.BgColor", GetBgColor(), pScheme));
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void PanelListPanel::OnSliderMoved( int position )
{
InvalidateLayout();
Repaint();
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void PanelListPanel::MoveScrollBarToTop()
{
m_vbar->SetValue(0);
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void PanelListPanel::SetFirstColumnWidth( int width )
{
m_iFirstColumnWidth = width;
}
//-----------------------------------------------------------------------------
// Purpose: data accessor
//-----------------------------------------------------------------------------
int PanelListPanel::GetFirstColumnWidth()
{
return m_iFirstColumnWidth;
}
void PanelListPanel::SetNumColumns( int iNumColumns )
{
m_iNumColumns = iNumColumns;
}
int PanelListPanel::GetNumColumns( void )
{
return m_iNumColumns;
}
//-----------------------------------------------------------------------------
// Purpose: moves the scrollbar with the mousewheel
//-----------------------------------------------------------------------------
void PanelListPanel::OnMouseWheeled(int delta)
{
int val = m_vbar->GetValue();
val -= (delta * DEFAULT_HEIGHT);
m_vbar->SetValue(val);
}
//-----------------------------------------------------------------------------
// Purpose: selection handler
//-----------------------------------------------------------------------------
void PanelListPanel::SetSelectedPanel( Panel *panel )
{
if ( panel != m_hSelectedItem )
{
// notify the panels of the selection change
if ( m_hSelectedItem )
{
PostMessage( m_hSelectedItem.Get(), new KeyValues("PanelSelected", "state", 0) );
}
if ( panel )
{
PostMessage( panel, new KeyValues("PanelSelected", "state", 1) );
}
m_hSelectedItem = panel;
}
}
//-----------------------------------------------------------------------------
// Purpose: data accessor
//-----------------------------------------------------------------------------
Panel *PanelListPanel::GetSelectedPanel()
{
return m_hSelectedItem;
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void PanelListPanel::ScrollToItem( int itemNumber )
{
if (!m_vbar->IsVisible())
{
return;
}
DATAITEM& item = m_DataItems[ m_SortedItems[ itemNumber ] ];
if ( !item.panel )
return;
int x, y;
item.panel->GetPos( x, y );
int lx, ly;
lx = x;
ly = y;
m_pPanelEmbedded->LocalToScreen( lx, ly );
ScreenToLocal( lx, ly );
int h = item.panel->GetTall();
if ( ly >= 0 && ly + h < GetTall() )
return;
m_vbar->SetValue( y );
InvalidateLayout();
}