wxwidgets thumbnial

thumbnailctrl.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        thumbnailctrl.cpp
// Purpose:     Displays a scrolling window of thumbnails
// Author:      Julian Smart
// Modified by: Anil Kumar
// Created:     03/08/04 17:22:46
// RCS-ID:      
// Copyright:   (c) Julian Smart
// Licence:     wxWidgets Licence
/////////////////////////////////////////////////////////////////////////////

#if defined(__GNUG__) && !defined(__APPLE__)
#pragma implementation "thumbnailctrl.h"
#endif

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
#pragma hdrstop
#endif

#ifndef WX_PRECOMP
#include "wx/wx.h"
#endif

#include "thumbnailctrl.h"

#if wxCHECK_VERSION(2,5,5)
#define USE_BUFFERED_PAINT 1
#else
#define USE_BUFFERED_PAINT 0
#endif

#include "wx/settings.h"
#include "wx/arrimpl.cpp"
#include "wx/image.h"
#include "wx/filename.h"
#include "wx/dcbuffer.h"
#include <algorithm>

//#include "tick.xpm"

WX_DEFINE_OBJARRAY(wxThumbnailItemArray);

wxDEFINE_EVENT(wxEVT_COMMAND_THUMBNAIL_SELECTION_CHANGED, wxThumbnailEvent);
wxDEFINE_EVENT(wxEVT_COMMAND_THUMBNAIL_ITEM_SELECTED, wxThumbnailEvent);
wxDEFINE_EVENT(wxEVT_COMMAND_THUMBNAIL_ITEM_DESELECTED, wxThumbnailEvent);
wxDEFINE_EVENT(wxEVT_COMMAND_THUMBNAIL_LEFT_CLICK, wxThumbnailEvent);
wxDEFINE_EVENT(wxEVT_COMMAND_THUMBNAIL_RIGHT_CLICK, wxThumbnailEvent);
wxDEFINE_EVENT(wxEVT_COMMAND_THUMBNAIL_VIEW_RIGHT_CLICK, wxThumbnailEvent);
wxDEFINE_EVENT(wxEVT_COMMAND_THUMBNAIL_LEFT_DCLICK, wxThumbnailEvent);
wxDEFINE_EVENT(wxEVT_COMMAND_THUMBNAIL_RETURN, wxThumbnailEvent);
wxDEFINE_EVENT(wxEVT_COMMAND_THUMBNAIL_DRAG_START, wxThumbnailEvent);
wxDEFINE_EVENT(wxEVT_COMMAND_THUMBNAIL_SORTED, wxThumbnailEvent);

IMPLEMENT_CLASS(wxThumbnailCtrl, wxScrolledWindow)
IMPLEMENT_CLASS(wxThumbnailItem, wxObject)
IMPLEMENT_CLASS(wxThumbnailEvent, wxNotifyEvent)

BEGIN_EVENT_TABLE(wxThumbnailCtrl, wxScrolledWindow)
EVT_PAINT(wxThumbnailCtrl::OnPaint)
EVT_ERASE_BACKGROUND(wxThumbnailCtrl::OnEraseBackground)
EVT_MOUSE_EVENTS(wxThumbnailCtrl::OnMouse)
EVT_MOTION(wxThumbnailCtrl::OnMouseMotion)
EVT_LEAVE_WINDOW(wxThumbnailCtrl::OnMouseLeave)
EVT_CHAR(wxThumbnailCtrl::OnChar)
EVT_SIZE(wxThumbnailCtrl::OnSize)
EVT_SET_FOCUS(wxThumbnailCtrl::OnSetFocus)
EVT_KILL_FOCUS(wxThumbnailCtrl::OnKillFocus)

EVT_MENU(wxID_SELECTALL, wxThumbnailCtrl::OnSelectAll)
EVT_UPDATE_UI(wxID_SELECTALL, wxThumbnailCtrl::OnUpdateSelectAll)
END_EVENT_TABLE()

wxThumbnailCtrl* wxThumbnailCtrl::sm_currentThumbnailCtrl = NULL;

/*!
* wxThumbnailCtrl
*/

wxThumbnailCtrl::wxThumbnailCtrl()
{
	Init();
}

wxThumbnailCtrl::wxThumbnailCtrl(wxWindow* parent, wxWindowID id, const wxPoint& pos, const wxSize& size, long style)
{
	Init();
	Create(parent, id, pos, size, style);
}

/// Creation
bool wxThumbnailCtrl::Create(wxWindow* parent, wxWindowID id, const wxPoint& pos, const wxSize& size, long style)
{
	if (!wxScrolledWindow::Create(parent, id, pos, size, style
#if wxCHECK_VERSION(2,5,1)
		| wxFULL_REPAINT_ON_RESIZE
#endif
	))
		return false;

	if (!GetFont().Ok())
	{
		SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
	}
	CalculateOverallThumbnailSize();

	SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE));
	// m_tagBitmap = wxBitmap(tick_xpm);

#if wxCHECK_VERSION(2,5,1)
	SetBackgroundStyle(wxBG_STYLE_CUSTOM);
#endif

	// Tell the sizers to use the given or best size    
	// SetBestFittingSize(size);
	SetInitialSize(size);

#if USE_BUFFERED_PAINT
	// Create a buffer
	RecreateBuffer(size);
#endif

	return true;
}

/// Member initialisation
void wxThumbnailCtrl::Init()
{
	m_thumbnailOverallSize = wxTHUMBNAIL_DEFAULT_OVERALL_SIZE;
	m_thumbnailImageSize = wxTHUMBNAIL_DEFAULT_IMAGE_SIZE;
	m_freezeCount = 0;
	m_spacing = wxTHUMBNAIL_DEFAULT_SPACING;
	m_thumbnailMargin = wxTHUMBNAIL_DEFAULT_MARGIN;
	m_firstSelection = -1;
	m_lastSelection = -1;
	m_focussedThumbnailBackgroundColour = wxTHUMBNAIL_DEFAULT_FOCUSSED_BACKGROUND;
	m_unfocussedThumbnailBackgroundColour = wxTHUMBNAIL_DEFAULT_UNFOCUSSED_BACKGROUND;
	m_unselectedThumbnailBackgroundColour = wxTHUMBNAIL_DEFAULT_UNSELECTED_BACKGROUND;
	m_typeColour = wxTHUMBNAIL_DEFAULT_TYPE_COLOUR;
	m_tagColour = wxTHUMBNAIL_DEFAULT_TAG_COLOUR;
	m_focusRectColour = wxTHUMBNAIL_DEFAULT_FOCUS_RECT_COLOUR;
	m_focusItem = -1;
}

/// Call Freeze to prevent refresh
void wxThumbnailCtrl::Freeze()
{
	m_freezeCount++;
}

/// Call Thaw to refresh
void wxThumbnailCtrl::Thaw()
{
	m_freezeCount--;

	if (m_freezeCount == 0)
	{
		SetupScrollbars();
		Refresh();
	}
}

/// Append a single item
int wxThumbnailCtrl::Append(wxThumbnailItem* item)
{
	int sz = (int)GetCount();
	m_items.Add(item);
	m_firstSelection = -1;
	m_lastSelection = -1;
	m_focusItem = -1;

	item->Load(this, false);

	if (m_freezeCount == 0)
	{
		SetupScrollbars();
		Refresh();
	}
	return sz;
}

/// Insert a single item
int wxThumbnailCtrl::Insert(wxThumbnailItem* item, int pos)
{
	m_items.Insert(item, pos);
	m_firstSelection = -1;
	m_lastSelection = -1;
	m_focusItem = -1;

	// Must now change selection indices because
	// items above it have moved up
	size_t i;
	for (i = 0; i < m_selections.GetCount(); i++)
	{
		if (m_selections[i] >= pos)
			m_selections[i] = m_selections[i] + 1;
	}
	// Ditto for tags
	for (i = 0; i < m_tags.GetCount(); i++)
	{
		if (m_tags[i] >= pos)
			m_tags[i] = m_tags[i] + 1;
	}

	item->Load(this, false);

	if (m_freezeCount == 0)
	{
		SetupScrollbars();
		Refresh();
	}
	return pos;
}

/// Clear all items
void wxThumbnailCtrl::Clear()
{
	m_firstSelection = -1;
	m_lastSelection = -1;
	m_focusItem = -1;
	m_items.Clear();
	m_selections.Clear();
	m_tags.Clear();
	m_hoverItem = wxNOT_FOUND;

	if (m_freezeCount == 0)
	{
		SetupScrollbars();
		Refresh();
	}
}

int wxThumbnailCtrl::Compare(wxThumbnailItem** item1, wxThumbnailItem** item2)
{
	wxFAIL_MSG("Override wxThumbnailCtrl::Compare function and provide your implementaion.");
	return 0;
}

/// Sorts items
void wxThumbnailCtrl::Sort()
{
	// preserve and restore selections & tags
	size_t i;
	size_t len = m_items.GetCount();
	for (i = 0; i < len; i++)
	{
		wxThumbnailItem& item = m_items[i];
		int state = 0;
		if (IsSelected(i))
			state |= wxTHUMBNAIL_SELECTED;
		if (IsTagged(i))
			state |= wxTHUMBNAIL_TAGGED;
		item.SetState(state);
	}
	m_selections.Clear();
	m_tags.Clear();
	m_firstSelection = -1;
	m_lastSelection = -1;
	m_focusItem = -1;

	sm_currentThumbnailCtrl = this;

	m_items.Sort([](wxThumbnailItem** item1, wxThumbnailItem** item2)
	{
		return sm_currentThumbnailCtrl->Compare(item1, item2);
	});

	sm_currentThumbnailCtrl = NULL;

	wxThumbnailEvent cmdEvent(
		wxEVT_COMMAND_THUMBNAIL_SORTED,
		GetId());
	cmdEvent.SetEventObject(this);
	GetEventHandler()->ProcessEvent(cmdEvent);

	Freeze();

	for (i = 0; i < len; i++)
	{
		wxThumbnailItem& item = m_items[i];
		if (item.GetState() & wxTHUMBNAIL_SELECTED)
			Select(i);
		if (item.GetState() & wxTHUMBNAIL_TAGGED)
			Tag(i);
	}

	Thaw();
}

/// Delete this item
void wxThumbnailCtrl::Delete(int n)
{
	if (m_firstSelection == n)
		m_firstSelection = -1;
	if (m_lastSelection == n)
		m_lastSelection = -1;
	if (m_focusItem == n)
		m_focusItem = -1;

	if (m_selections.Index(n) != wxNOT_FOUND)
	{
		m_selections.Remove(n);

		wxThumbnailEvent event(wxEVT_COMMAND_THUMBNAIL_ITEM_DESELECTED, GetId());
		event.SetEventObject(this);
		event.SetIndex(n);
		GetEventHandler()->ProcessEvent(event);

		wxThumbnailEvent cmdEvent(wxEVT_COMMAND_THUMBNAIL_SELECTION_CHANGED, GetId());
		cmdEvent.SetEventObject(this);
		GetEventHandler()->ProcessEvent(cmdEvent);
	}

	if (m_tags.Index(n) != wxNOT_FOUND)
		m_tags.Remove(n);

	m_items.RemoveAt(n);

	// Must now change selection indices because
	// items have moved down
	size_t i;
	for (i = 0; i < m_selections.GetCount(); i++)
	{
		if (m_selections[i] > n)
			m_selections[i] = m_selections[i] - 1;
	}

	if (m_freezeCount == 0)
	{
		SetupScrollbars();
		Refresh();
	}
}

/// Get the nth item
wxThumbnailItem* wxThumbnailCtrl::GetItem(int n)
{
	wxASSERT(n < GetCount());

	if (n < GetCount())
	{
		return &m_items[(size_t)n];
	}
	else
		return NULL;
}

/// Get the overall rect of the given item
bool wxThumbnailCtrl::GetItemRect(int n, wxRect& rect, bool transform)
{
	wxASSERT(n < GetCount());
	if (n < GetCount())
	{
		int row, col;
		if (!GetRowCol(n, GetClientSize(), row, col))
			return false;

		int x = col * (m_thumbnailOverallSize.x + m_spacing) + m_spacing;
		int y = row * (m_thumbnailOverallSize.y + m_spacing) + m_spacing;

		if (transform)
		{
			int startX, startY;
			int xppu, yppu;
			GetScrollPixelsPerUnit(&xppu, &yppu);
			GetViewStart(&startX, &startY);
			x = x - startX*xppu;
			y = y - startY*yppu;
		}

		rect.x = x;
		rect.y = y;
		rect.width = m_thumbnailOverallSize.x;
		rect.height = m_thumbnailOverallSize.y;

		return true;
	}

	return false;
}

/// Get the image rect of the given item
bool wxThumbnailCtrl::GetItemRectImage(int n, wxRect& rect, bool transform)
{
	wxASSERT(n < GetCount());

	wxRect outerRect;
	if (!GetItemRect(n, outerRect, transform))
		return false;

	rect.width = m_thumbnailImageSize.x;
	rect.height = m_thumbnailImageSize.y;
	rect.x = outerRect.x + (outerRect.width - rect.width) / 2;
	rect.y = outerRect.y + (outerRect.height - rect.height) / 2;
	if ((GetWindowStyle() & wxTH_EXTENSION_LABEL) == 0) rect.y -= m_thumbnailTextHeight / 2;

	return true;
}

/// The size of the image part
void wxThumbnailCtrl::SetThumbnailImageSize(const wxSize& sz)
{
	m_thumbnailImageSize = sz;
	CalculateOverallThumbnailSize();

	if (GetCount() > 0 && m_freezeCount == 0)
	{
		SetupScrollbars();
		Refresh();
	}
}

/// Calculate the outer thumbnail size based
/// on font used for text and inner size
void wxThumbnailCtrl::CalculateOverallThumbnailSize()
{
	wxCoord w;
	wxClientDC dc(this);
	dc.SetFont(GetFont());
	dc.GetTextExtent(wxT("X"), &w, &m_thumbnailTextHeight);

	// From left to right: margin, image, margin
	m_thumbnailOverallSize.x = m_thumbnailMargin * 2 + m_thumbnailImageSize.x;

	// From top to bottom: margin, text + margin (if wxTH_EXTENSION_LABEL set), image, margin, text, margin
	if (GetWindowStyle() & wxTH_EXTENSION_LABEL)
	{
		m_thumbnailOverallSize.y = m_thumbnailMargin * 4 + m_thumbnailTextHeight * 2 + m_thumbnailImageSize.y;
	}
	else
	{
		m_thumbnailOverallSize.y = m_thumbnailMargin * 3 + m_thumbnailTextHeight + m_thumbnailImageSize.y;
	}
}

/// Return the row and column given the client
/// size and a left-to-right, top-to-bottom layout
/// assumption
bool wxThumbnailCtrl::GetRowCol(int item, const wxSize& clientSize, int& row, int& col)
{
	wxASSERT(item < GetCount());
	if (item >= GetCount())
		return false;

	// How many can we fit in a row?

	int perRow = clientSize.x / (m_thumbnailOverallSize.x + m_spacing);
	if (perRow < 1)
		perRow = 1;

	row = item / perRow;
	col = item % perRow;

	return true;
}


/// Select or deselect an item
void wxThumbnailCtrl::Select(int n, bool select)
{
	wxASSERT(n < GetCount());

	if (select)
	{
		if (m_selections.Index(n) == wxNOT_FOUND)
			m_selections.Add(n);
	}
	else
	{
		if (m_selections.Index(n) != wxNOT_FOUND)
			m_selections.Remove(n);
	}

	m_firstSelection = n;
	m_lastSelection = n;
	int oldFocusItem = m_focusItem;
	m_focusItem = n;

	if (m_freezeCount == 0)
	{
		wxRect rect;
		GetItemRect(n, rect);
		RefreshRect(rect);

		if (oldFocusItem != -1 && oldFocusItem != n)
		{
			GetItemRect(oldFocusItem, rect);
			RefreshRect(rect);
		}
	}
}

/// Select or deselect a range
void wxThumbnailCtrl::SelectRange(int from, int to, bool select)
{
	int first = from;
	int last = to;
	if (first < last)
	{
		first = to;
		last = from;
	}
	wxASSERT(first >= 0 && first < GetCount());
	wxASSERT(last >= 0 && last < GetCount());

	Freeze();
	int i;
	for (i = first; i < last; i++)
	{
		Select(i, select);
	}
	m_focusItem = to;
	Thaw();
}

/// Select all
void wxThumbnailCtrl::SelectAll()
{
	Freeze();
	int i;
	for (i = 0; i < GetCount(); i++)
	{
		Select(i, true);
	}
	if (GetCount() > 0)
	{
		m_focusItem = GetCount() - 1;
	}
	else
	{
		m_focusItem = -1;
	}
	Thaw();
}

/// Select none
void wxThumbnailCtrl::SelectNone()
{
	Freeze();
	int i;
	for (i = 0; i < GetCount(); i++)
	{
		Select(i, false);
	}
	Thaw();
}

/// Get the index of the single selection, if not multi-select.
/// Returns -1 if there is no selection.
int wxThumbnailCtrl::GetSelection() const
{
	if (m_selections.GetCount() > 0)
		return m_selections[0u];
	else
		return -1;
}

/// Returns true if the item is selected
bool wxThumbnailCtrl::IsSelected(int n) const
{
	return (m_selections.Index(n) != wxNOT_FOUND);
}

/// Clears all selections
void wxThumbnailCtrl::ClearSelections()
{
	int count = GetCount();

	m_selections.Clear();
	m_firstSelection = -1;
	m_lastSelection = -1;
	m_focusItem = -1;

	if (count > 0 && m_freezeCount == 0)
	{
		Refresh();
	}
}

/// Set the focus item
void wxThumbnailCtrl::SetFocusItem(int item)
{
	wxASSERT(item < GetCount());
	if (item < GetCount())
	{
		int oldFocusItem = m_focusItem;
		m_focusItem = item;

		if (m_freezeCount == 0)
		{
			wxRect rect;
			if (oldFocusItem != -1)
			{
				GetItemRect(oldFocusItem, rect);
				RefreshRect(rect);
			}
			if (m_focusItem != -1)
			{
				GetItemRect(m_focusItem, rect);
				RefreshRect(rect);
			}
		}
	}
}

/// Tag or untag an item
void wxThumbnailCtrl::Tag(int n, bool tag)
{
	wxASSERT(n < GetCount());

	if (tag)
	{
		if (m_tags.Index(n) == wxNOT_FOUND)
			m_tags.Add(n);
	}
	else
	{
		if (m_tags.Index(n) != wxNOT_FOUND)
			m_tags.Remove(n);
	}

	if (m_freezeCount == 0)
	{
		wxRect rect;
		GetItemRect(n, rect);
		RefreshRect(rect);
	}
}

/// Returns true if the item is tagged
bool wxThumbnailCtrl::IsTagged(int n) const
{
	return (m_tags.Index(n) != wxNOT_FOUND);
}

/// Clears all tags
void wxThumbnailCtrl::ClearTags()
{
	int count = GetCount();

	m_tags.Clear();

	if (count > 0 && m_freezeCount == 0)
	{
		Refresh();
	}
}

/// Painting
void wxThumbnailCtrl::OnPaint(wxPaintEvent& WXUNUSED(event))
{
	// Set this to 0 to compare it with the
	// unbuffered implementation
#if USE_BUFFERED_PAINT
	wxBufferedPaintDC dc(this, m_bufferBitmap);
#else
	wxPaintDC dc(this);
#endif

	PrepareDC(dc);

	if (m_freezeCount > 0)
		return;

	// Paint the background
	PaintBackground(dc);

	if (GetCount() == 0)
		return;

	wxRegion dirtyRegion = GetUpdateRegion();
	bool isFocussed = (FindFocus() == this);

	int i;
	int count = GetCount();
	int style = 0;
	wxRect rect, untransformedRect, imageRect, untransformedImageRect;
	for (i = 0; i < count; i++)
	{
		GetItemRect(i, rect);

		wxRegionContain c = dirtyRegion.Contains(rect);
		if (c != wxOutRegion)
		{
			GetItemRectImage(i, imageRect);
			style = 0;

			if (i == GetMouseHoverItem())
				style |= wxTHUMBNAIL_IS_HOVER;
			if (IsSelected(i))
				style |= wxTHUMBNAIL_SELECTED;
			if (IsTagged(i))
				style |= wxTHUMBNAIL_TAGGED;
			if (isFocussed)
				style |= wxTHUMBNAIL_FOCUSSED;
			if (isFocussed && i == m_focusItem)
				style |= wxTHUMBNAIL_IS_FOCUS;

			GetItemRect(i, untransformedRect, false);
			GetItemRectImage(i, untransformedImageRect, false);

			DrawItemBackground(i, dc, untransformedRect, untransformedImageRect, style);
			DrawItem(i, dc, untransformedRect, style);
		}
	}
}

// Empty implementation, to prevent flicker
void wxThumbnailCtrl::OnEraseBackground(wxEraseEvent& WXUNUSED(event))
{
}

void wxThumbnailCtrl::OnSetFocus(wxFocusEvent& WXUNUSED(event))
{
	if (GetCount() > 0)
		Refresh();
}

void wxThumbnailCtrl::OnKillFocus(wxFocusEvent& WXUNUSED(event))
{
	if (GetCount() > 0)
		Refresh();
}

/// Mouse-event
void wxThumbnailCtrl::OnMouse(wxMouseEvent& event)
{
	if (event.GetEventType() == wxEVT_MOUSEWHEEL)
	{
		// let the base handle mouse wheel events.
		event.Skip();
		return;
	}

	if (event.LeftDown())
	{
		OnLeftClickDown(event);
	}
	else if (event.LeftUp())
	{
		OnLeftClickUp(event);
	}
	else if (event.LeftDClick())
	{
		OnLeftDClick(event);
	}
	else if (event.RightDown())
	{
		OnRightClickDown(event);
	}
	else if (event.RightUp())
	{
		OnRightClickUp(event);
	}
	else if (event.Dragging() && event.LeftIsDown() && GetSelections().Count())
	{
		wxThumbnailEvent cmdEvent(
			wxEVT_COMMAND_THUMBNAIL_DRAG_START,
			GetId());

		if (wxDefaultPosition == m_dragStartPosition)
			m_dragStartPosition = event.GetPosition();

		if ((GetWindowStyle() & wxTH_MULTIPLE_SELECT) != 0)
			cmdEvent.SetItemsIndex(GetSelections());
		else
			cmdEvent.SetIndex(GetSelection());

		cmdEvent.SetPosition(m_dragStartPosition);
		cmdEvent.SetEventObject(this);
		GetEventHandler()->ProcessEvent(cmdEvent);
	}
	else
	{
		m_dragStartPosition = wxDefaultPosition;
	}

	event.Skip();
}

/// Left-click-down
void wxThumbnailCtrl::OnLeftClickDown(wxMouseEvent& event)
{
	SetFocus();
	int n;
	if (HitTest(event.GetPosition(), n))
	{
		int flags = 0;
		if (event.ControlDown())
			flags |= wxTHUMBNAIL_CTRL_DOWN;
		if (event.ShiftDown())
			flags |= wxTHUMBNAIL_SHIFT_DOWN;
		if (event.AltDown())
			flags |= wxTHUMBNAIL_ALT_DOWN;

		EnsureVisible(n);

		bool change = false;

		if (((GetWindowStyle() & wxTH_MULTIPLE_SELECT) != 0))
			change = !IsSelected(n) || (flags != 0);
		else
			change = !IsSelected(n);

		if (change)
			DoSelection(n, flags);

		wxThumbnailEvent cmdEvent(
			wxEVT_COMMAND_THUMBNAIL_LEFT_CLICK,
			GetId());
		cmdEvent.SetEventObject(this);
		cmdEvent.SetIndex(n);
		cmdEvent.SetFlags(flags);
		GetEventHandler()->ProcessEvent(cmdEvent);
	}
}

/// Left-click-up
void wxThumbnailCtrl::OnLeftClickUp(wxMouseEvent& event)
{
	SetFocus();
	int n;
	if (HitTest(event.GetPosition(), n))
	{
		int flags = 0;
		if (event.ControlDown())
			flags |= wxTHUMBNAIL_CTRL_DOWN;
		if (event.ShiftDown())
			flags |= wxTHUMBNAIL_SHIFT_DOWN;
		if (event.AltDown())
			flags |= wxTHUMBNAIL_ALT_DOWN;

		EnsureVisible(n);

		if ((GetWindowStyle() & wxTH_MULTIPLE_SELECT) != 0)
		{
			if ((GetSelections().Count() > 1) && IsSelected(n) && flags == 0)
				DoSelection(n, flags);
		}
	}
}

/// Right-click-down
void wxThumbnailCtrl::OnRightClickDown(wxMouseEvent& event)
{
	SetFocus();
	int n;
	if (HitTest(event.GetPosition(), n))
	{
		int flags = 0;
		if (event.ControlDown())
			flags |= wxTHUMBNAIL_CTRL_DOWN;
		if (event.ShiftDown())
			flags |= wxTHUMBNAIL_SHIFT_DOWN;
		if (event.AltDown())
			flags |= wxTHUMBNAIL_ALT_DOWN;

		if (m_focusItem != n)
			SetFocusItem(n);

		const wxArrayInt& selections = GetSelections();
		if (std::find(selections.begin(), selections.end(), n) == selections.end())
		{
			SelectNone();
			Select(n);
			wxThumbnailEvent cmdEvent(
				wxEVT_COMMAND_THUMBNAIL_ITEM_SELECTED,
				GetId());
			cmdEvent.SetEventObject(this);
			cmdEvent.SetIndex(n);
			cmdEvent.SetFlags(flags);
			GetEventHandler()->ProcessEvent(cmdEvent);

			wxThumbnailEvent event(wxEVT_COMMAND_THUMBNAIL_SELECTION_CHANGED, GetId());
			event.SetEventObject(this);
			GetEventHandler()->ProcessEvent(event);
		}
	}

	event.Skip();
}

/// Right-click-up
void wxThumbnailCtrl::OnRightClickUp(wxMouseEvent& event)
{
	SetFocus();

	int flags = 0;
	if (event.ControlDown())
		flags |= wxTHUMBNAIL_CTRL_DOWN;
	if (event.ShiftDown())
		flags |= wxTHUMBNAIL_SHIFT_DOWN;
	if (event.AltDown())
		flags |= wxTHUMBNAIL_ALT_DOWN;

	int n;
	if (HitTest(event.GetPosition(), n))
	{
		if (m_focusItem != n)
			SetFocusItem(n);

		const wxArrayInt& selections = GetSelections();
		if (std::find(selections.begin(), selections.end(), n) != selections.end())
		{
			wxThumbnailEvent cmdEvent(
				wxEVT_COMMAND_THUMBNAIL_RIGHT_CLICK,
				GetId());
			cmdEvent.SetEventObject(this);
			cmdEvent.SetIndex(n);
			cmdEvent.SetFlags(flags);
			cmdEvent.SetPosition(event.GetPosition());
			GetEventHandler()->ProcessEvent(cmdEvent);
		}
	}
	else
	{
		wxThumbnailEvent cmdEvent(
			wxEVT_COMMAND_THUMBNAIL_VIEW_RIGHT_CLICK,
			GetId());
		cmdEvent.SetEventObject(this);
		cmdEvent.SetFlags(flags);
		cmdEvent.SetPosition(event.GetPosition());
		GetEventHandler()->ProcessEvent(cmdEvent);
	}
}

/// Left-double-click
void wxThumbnailCtrl::OnLeftDClick(wxMouseEvent& event)
{
	int n;
	if (HitTest(event.GetPosition(), n))
	{
		int flags = 0;
		if (event.ControlDown())
			flags |= wxTHUMBNAIL_CTRL_DOWN;
		if (event.ShiftDown())
			flags |= wxTHUMBNAIL_SHIFT_DOWN;
		if (event.AltDown())
			flags |= wxTHUMBNAIL_ALT_DOWN;

		wxThumbnailEvent cmdEvent(
			wxEVT_COMMAND_THUMBNAIL_LEFT_DCLICK,
			GetId());
		cmdEvent.SetEventObject(this);
		cmdEvent.SetIndex(n);
		cmdEvent.SetFlags(flags);
		GetEventHandler()->ProcessEvent(cmdEvent);
	}
}

/// Mouse motion
void wxThumbnailCtrl::OnMouseMotion(wxMouseEvent& event)
{
	wxRect rect;
	int n;
	if (HitTest(event.GetPosition(), n))
	{
		if (m_hoverItem != n)
			ShowMouseHoverBackground(n);

		ShowTooltip(n);
	}
	else
	{
		if (wxNOT_FOUND != m_hoverItem)
			HideMouseHoverBackground();

		UnsetToolTip();
	}

	event.Skip();
}

/// Mouse leave
void wxThumbnailCtrl::OnMouseLeave(wxMouseEvent& event)
{
	if (wxNOT_FOUND != m_hoverItem)
		HideMouseHoverBackground();

	event.Skip();
}

/// Key press
void wxThumbnailCtrl::OnChar(wxKeyEvent& event)
{
	int flags = 0;
	if (event.ControlDown())
		flags |= wxTHUMBNAIL_CTRL_DOWN;
	if (event.ShiftDown())
		flags |= wxTHUMBNAIL_SHIFT_DOWN;
	if (event.AltDown())
		flags |= wxTHUMBNAIL_ALT_DOWN;

	if (event.GetKeyCode() == WXK_LEFT ||
		event.GetKeyCode() == WXK_RIGHT ||
		event.GetKeyCode() == WXK_UP ||
		event.GetKeyCode() == WXK_DOWN ||
		event.GetKeyCode() == WXK_HOME ||
		event.GetKeyCode() == WXK_PAGEUP ||
		event.GetKeyCode() == WXK_PAGEDOWN ||
		//event.GetKeyCode() == WXK_PRIOR ||
		//event.GetKeyCode() == WXK_NEXT ||
		event.GetKeyCode() == WXK_END)
	{
		Navigate(event.GetKeyCode(), flags);
	}
	else if (event.GetKeyCode() == WXK_RETURN)
	{
		wxThumbnailEvent cmdEvent(
			wxEVT_COMMAND_THUMBNAIL_RETURN,
			GetId());
		cmdEvent.SetEventObject(this);
		cmdEvent.SetFlags(flags);
		GetEventHandler()->ProcessEvent(cmdEvent);
	}
	else
		event.Skip();
}

/// Keyboard navigation
bool wxThumbnailCtrl::Navigate(int keyCode, int flags)
{
	if (GetCount() == 0)
		return false;

	wxSize clientSize = GetClientSize();
	int perRow = clientSize.x / (m_thumbnailOverallSize.x + m_spacing);
	if (perRow < 1)
		perRow = 1;

	int rowsInView = clientSize.y / (m_thumbnailOverallSize.y + m_spacing);
	if (rowsInView < 1)
		rowsInView = 1;

	int focus = m_focusItem;
	if (focus == -1)
		focus = m_lastSelection;

	if (focus == -1 || focus >= GetCount())
	{
		m_lastSelection = 0;
		DoSelection(m_lastSelection, flags);
		ScrollIntoView(m_lastSelection, keyCode);
		return true;
	}

	if (keyCode == WXK_RIGHT)
	{
		int next = focus + 1;
		if (next < GetCount())
		{
			DoSelection(next, flags);
			ScrollIntoView(next, keyCode);
		}
	}
	else if (keyCode == WXK_LEFT)
	{
		int next = focus - 1;
		if (next >= 0)
		{
			DoSelection(next, flags);
			ScrollIntoView(next, keyCode);
		}
	}
	else if (keyCode == WXK_UP)
	{
		int next = focus - perRow;
		if (next >= 0)
		{
			DoSelection(next, flags);
			ScrollIntoView(next, keyCode);
		}
	}
	else if (keyCode == WXK_DOWN)
	{
		int next = focus + perRow;
		if (next < GetCount())
		{
			DoSelection(next, flags);
			ScrollIntoView(next, keyCode);
		}
	}
	else if (keyCode == WXK_PAGEUP /*|| keyCode == WXK_PRIOR*/)
	{
		int next = focus - (perRow * rowsInView);
		if (next < 0)
			next = 0;
		if (next >= 0)
		{
			DoSelection(next, flags);
			ScrollIntoView(next, keyCode);
		}
	}
	else if (keyCode == WXK_PAGEDOWN /*|| keyCode == WXK_NEXT*/)
	{
		int next = focus + (perRow * rowsInView);
		if (next >= GetCount())
			next = GetCount() - 1;
		if (next < GetCount())
		{
			DoSelection(next, flags);
			ScrollIntoView(next, keyCode);
		}
	}
	else if (keyCode == WXK_HOME)
	{
		DoSelection(0, flags);
		ScrollIntoView(0, keyCode);
	}
	else if (keyCode == WXK_END)
	{
		DoSelection(GetCount() - 1, flags);
		ScrollIntoView(GetCount() - 1, keyCode);
	}
	return true;
}

/// Scroll to see the image
void wxThumbnailCtrl::ScrollIntoView(int n, int keyCode)
{
	wxRect rect;
	GetItemRect(n, rect, false); // _Not_ relative to scroll start

	int ppuX, ppuY;
	GetScrollPixelsPerUnit(&ppuX, &ppuY);

	int startX, startY;
	GetViewStart(&startX, &startY);
	startX = 0;
	startY = startY * ppuY;

	int sx, sy;
	GetVirtualSize(&sx, &sy);
	sx = 0;
	if (ppuY != 0)
		sy = sy / ppuY;

	wxSize clientSize = GetClientSize();

	// Going down
	if (keyCode == WXK_DOWN || keyCode == WXK_RIGHT || keyCode == WXK_END /*|| keyCode == WXK_NEXT*/ || keyCode == WXK_PAGEDOWN)
	{
		if ((rect.y + rect.height) > (clientSize.y + startY))
		{
			// Make it scroll so this item is at the bottom
			// of the window
			int y = rect.y - (clientSize.y - m_thumbnailOverallSize.y - m_spacing);
			SetScrollbars(ppuX, ppuY, sx, sy, 0, (int)(0.5 + y / ppuY));
		}
		else if (rect.y < startY)
		{
			// Make it scroll so this item is at the top
			// of the window
			int y = rect.y;
			SetScrollbars(ppuX, ppuY, sx, sy, 0, (int)(0.5 + y / ppuY));
		}
	}
	// Going up
	else if (keyCode == WXK_UP || keyCode == WXK_LEFT || keyCode == WXK_HOME /*|| keyCode == WXK_PRIOR*/ || keyCode == WXK_PAGEUP)
	{
		if (rect.y < startY)
		{
			// Make it scroll so this item is at the top
			// of the window
			int y = rect.y;
			SetScrollbars(ppuX, ppuY, sx, sy, 0, (int)(0.5 + y / ppuY));
		}
		else if ((rect.y + rect.height) >(clientSize.y + startY))
		{
			// Make it scroll so this item is at the bottom
			// of the window
			int y = rect.y - (clientSize.y - m_thumbnailOverallSize.y - m_spacing);
			SetScrollbars(ppuX, ppuY, sx, sy, 0, (int)(0.5 + y / ppuY));
		}
	}
}

/// Scrolls the item into view if necessary
void wxThumbnailCtrl::EnsureVisible(int n)
{
	wxRect rect;
	GetItemRect(n, rect, false); // _Not_ relative to scroll start

	int ppuX, ppuY;
	GetScrollPixelsPerUnit(&ppuX, &ppuY);

	if (ppuY == 0)
		return;

	int startX, startY;
	GetViewStart(&startX, &startY);
	startX = 0;
	startY = startY * ppuY;

	int sx, sy;
	GetVirtualSize(&sx, &sy);
	sx = 0;
	if (ppuY != 0)
		sy = sy / ppuY;

	wxSize clientSize = GetClientSize();

	if ((rect.y + rect.height) > (clientSize.y + startY))
	{
		// Make it scroll so this item is at the bottom
		// of the window
		int y = rect.y - (clientSize.y - m_thumbnailOverallSize.y - m_spacing);
		SetScrollbars(ppuX, ppuY, sx, sy, 0, (int)(0.5 + y / ppuY));
	}
	else if (rect.y < startY)
	{
		// Make it scroll so this item is at the top
		// of the window
		int y = rect.y;
		SetScrollbars(ppuX, ppuY, sx, sy, 0, (int)(0.5 + y / ppuY));
	}
}

/// Forces a reload of this item's thumbnail image
void wxThumbnailCtrl::Reload(int n)
{
	wxThumbnailItem* item = GetItem(n);
	if (item)
	{
		item->Load(this, true);
	}
}

/// Sizing
void wxThumbnailCtrl::OnSize(wxSizeEvent& event)
{
	SetupScrollbars();
	RecreateBuffer();
	event.Skip();
}

/// Set up scrollbars, e.g. after a resize
void wxThumbnailCtrl::SetupScrollbars()
{
	if (m_freezeCount)
		return;

	if (GetCount() == 0)
	{
		SetScrollbars(0, 0, 0, 0, 0, 0);
		return;
	}

	int lastItem = wxMax(0, GetCount() - 1);
	int pixelsPerUnit = 10;
	wxSize clientSize = GetClientSize();

	int row, col;
	GetRowCol(lastItem, clientSize, row, col);

	int maxHeight = (row + 1) * (m_thumbnailOverallSize.y + m_spacing) + m_spacing;

	int unitsY = maxHeight / pixelsPerUnit;

	int startX, startY;
	GetViewStart(&startX, &startY);

	int maxPositionX = 0; // wxMax(sz.x - clientSize.x, 0);
	int maxPositionY = (wxMax(maxHeight - clientSize.y, 0)) / pixelsPerUnit;

	// Move to previous scroll position if
	// possible
	SetScrollbars(0, pixelsPerUnit,
		0, unitsY,
		wxMin(maxPositionX, startX), wxMin(maxPositionY, startY));
}

/// Show the tooltip
void wxThumbnailCtrl::ShowTooltip(int n)
{
	if (wxNOT_FOUND != n)
	{
		wxThumbnailItem* item = GetItem(n);
		const wxString tooltip = wxFileNameFromPath(item->GetFilename());

		if (GetToolTipText() != tooltip)
			SetToolTip(tooltip);
	}
}

/// Draws the item. Normally you override function in wxThumbnailItem.
bool wxThumbnailCtrl::DrawItem(int n, wxDC& dc, const wxRect& rect, int style)
{
	wxThumbnailItem* item = GetItem(n);
	if (item)
	{
		return item->Draw(dc, this, rect, style, n);
	}
	else
		return false;
}

/// Draws the background for the item, including bevel
bool wxThumbnailCtrl::DrawItemBackground(int n, wxDC& dc, const wxRect& rect, const wxRect& imageRect, int style)
{
	wxThumbnailItem* item = GetItem(n);
	if (item)
	{
		return item->DrawBackground(dc, this, rect, imageRect, style, n);
	}
	else
	{
		return false;
	}
}

/// Do (de)selection
void wxThumbnailCtrl::DoSelection(int n, int flags)
{
	bool isSelected = IsSelected(n);

	wxArrayInt stateChanged;

	bool multiSelect = (GetWindowStyle() & wxTH_MULTIPLE_SELECT) != 0;

	if (multiSelect && (flags & wxTHUMBNAIL_CTRL_DOWN) == wxTHUMBNAIL_CTRL_DOWN)
	{
		Select(n, !isSelected);
		stateChanged.Add(n);
	}
	else if (multiSelect && (flags & wxTHUMBNAIL_SHIFT_DOWN) == wxTHUMBNAIL_SHIFT_DOWN)
	{
		// We need to find the last item selected,
		// and select all in between.

		int first = m_firstSelection;

		// Want to keep the 'first' selection
		// if we're extending the selection
		bool keepFirstSelection = false;
		wxArrayInt oldSelections = m_selections;

		m_selections.Clear(); // TODO: need to refresh those that become unselected. Store old selections, compare with new

		if (m_firstSelection != -1 && m_firstSelection < GetCount() && m_firstSelection != n)
		{
			int step = (n < m_firstSelection) ? -1 : 1;
			int i;
			for (i = m_firstSelection; i != n; i += step)
			{
				if (!IsSelected(i))
				{
					m_selections.Add(i);
					stateChanged.Add(i);

					wxRect rect;
					GetItemRect(i, rect);
					RefreshRect(rect);
				}
			}
			keepFirstSelection = true;
		}

		// Refresh all the previously selected items that became unselected
		size_t i;
		for (i = 0; i < oldSelections.GetCount(); i++)
		{
			if (!IsSelected(oldSelections[i]))
			{
				wxRect rect;
				GetItemRect(oldSelections[i], rect);
				RefreshRect(rect);
			}
		}

		Select(n, true);
		if (stateChanged.Index(n) == wxNOT_FOUND)
			stateChanged.Add(n);

		if (keepFirstSelection)
			m_firstSelection = first;
	}
	else
	{
		size_t i = 0;
		for (i = 0; i < m_selections.GetCount(); i++)
		{
			wxRect rect;
			GetItemRect(m_selections[i], rect);
			RefreshRect(rect);

			stateChanged.Add(i);
		}

		m_selections.Clear();
		Select(n, true);
		if (stateChanged.Index(n) == wxNOT_FOUND)
			stateChanged.Add(n);
	}

	// Now notify the app of any selection changes
	size_t i = 0;
	for (i = 0; i < stateChanged.GetCount(); i++)
	{
		wxThumbnailEvent event(
			m_selections.Index(stateChanged[i]) != wxNOT_FOUND ? wxEVT_COMMAND_THUMBNAIL_ITEM_SELECTED : wxEVT_COMMAND_THUMBNAIL_ITEM_DESELECTED,
			GetId());
		event.SetEventObject(this);
		event.SetIndex(stateChanged[i]);
		GetEventHandler()->ProcessEvent(event);
	}

	if (stateChanged.GetCount() > 0)
	{
		wxThumbnailEvent event(wxEVT_COMMAND_THUMBNAIL_SELECTION_CHANGED, GetId());
		event.SetEventObject(this);
		GetEventHandler()->ProcessEvent(event);
	}
}

/// Find the item under the given point
bool wxThumbnailCtrl::HitTest(const wxPoint& pt, int& n)
{
	wxSize clientSize = GetClientSize();
	int startX, startY;
	int ppuX, ppuY;
	GetViewStart(&startX, &startY);
	GetScrollPixelsPerUnit(&ppuX, &ppuY);

	int perRow = clientSize.x / (m_thumbnailOverallSize.x + m_spacing);
	if (perRow < 1)
		perRow = 1;

	int colPos = (int)(pt.x / (m_thumbnailOverallSize.x + m_spacing));
	int rowPos = (int)((pt.y + startY * ppuY) / (m_thumbnailOverallSize.y + m_spacing));

	int itemN = (rowPos * perRow + colPos);
	if (itemN >= GetCount())
		return false;

	wxRect rect;
	GetItemRect(itemN, rect);
	if (rect.Contains(pt))
	{
		n = itemN;
		return true;
	}

	return false;
}

void wxThumbnailCtrl::OnSelectAll(wxCommandEvent& WXUNUSED(event))
{
	SelectAll();
}

void wxThumbnailCtrl::OnUpdateSelectAll(wxUpdateUIEvent& event)
{
	event.Enable(GetCount() > 0);
}

/// Paint the background
void wxThumbnailCtrl::PaintBackground(wxDC& dc)
{
	wxColour backgroundColour = GetBackgroundColour();
	if (!backgroundColour.Ok())
		backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);

	// Clear the background
	dc.SetBrush(wxBrush(backgroundColour));
	dc.SetPen(*wxTRANSPARENT_PEN);
	wxRect windowRect(wxPoint(0, 0), GetClientSize());
	windowRect.x -= 2; windowRect.y -= 2;
	windowRect.width += 4; windowRect.height += 4;

	// We need to shift the rectangle to take into account
	// scrolling. Converting device to logical coordinates.
	CalcUnscrolledPosition(windowRect.x, windowRect.y, &windowRect.x, &windowRect.y);
	dc.DrawRectangle(windowRect);
}

/// Recreate buffer bitmap if necessary
bool wxThumbnailCtrl::RecreateBuffer(const wxSize& size)
{
	wxSize sz = size;
	if (sz == wxDefaultSize)
		sz = GetClientSize();

	if (sz.x < 1 || sz.y < 1)
		return false;

	if (!m_bufferBitmap.Ok() || m_bufferBitmap.GetWidth() < sz.x || m_bufferBitmap.GetHeight() < sz.y)
		m_bufferBitmap = wxBitmap(sz.x, sz.y);
	return m_bufferBitmap.Ok();
}

/// Show mouse hover background
void wxThumbnailCtrl::ShowMouseHoverBackground(int n)
{
	// remove old
	HideMouseHoverBackground();

	// add new
	wxRect rect;
	if (GetItemRect(n, rect))
	{
		m_hoverItem = n;
		RefreshRect(rect);
	}
}

/// Hide mouse hover background
void wxThumbnailCtrl::HideMouseHoverBackground()
{
	wxRect rect;
	if (wxNOT_FOUND != m_hoverItem)
	{
		if (GetItemRect(m_hoverItem, rect))
			RefreshRect(rect);

		m_hoverItem = wxNOT_FOUND;
	}
}

/*!
* wxThumbnailItem
*/
/// Refresh Item
bool wxThumbnailItem::Refresh(wxThumbnailCtrl* ctrl, int index)
{
	wxRect r;
	ctrl->GetItemRect(index, r);
	ctrl->RefreshRect(r);
	return true;
}

/// Draw the item
bool wxThumbnailItem::Draw(wxDC& WXUNUSED(dc), wxThumbnailCtrl* WXUNUSED(ctrl), const wxRect& WXUNUSED(rect), int WXUNUSED(style), int WXUNUSED(index))
{

	wxFAIL_MSG("Override wxThumbnailCtrl::Draw function and provide your implementaion.");
	return false;
}

/// Draw the item background. It has the default implementation.
/// You have to ovveride this function inorder to provide your implementaion.
bool wxThumbnailItem::DrawBackground(wxDC& dc, wxThumbnailCtrl* ctrl, const wxRect& rect, const wxRect& imageRect, int style, int WXUNUSED(index))
{
	wxColour mediumGrey = ctrl->GetUnselectedThumbnailBackgroundColour();
	wxColour unfocussedDarkGrey = ctrl->GetSelectedThumbnailUnfocussedBackgroundColour();
	wxColour focussedDarkGrey = ctrl->GetSelectedThumbnailFocussedBackgroundColour();
	wxColour darkGrey;
	if (style & wxTHUMBNAIL_FOCUSSED)
		darkGrey = focussedDarkGrey;
	else
		darkGrey = unfocussedDarkGrey;

	if (style & wxTHUMBNAIL_SELECTED)
	{
		wxBrush brush(darkGrey);
		wxPen pen(darkGrey);
		dc.SetBrush(brush);
		dc.SetPen(pen);
	}
	else
	{
		wxBrush brush(mediumGrey);
		wxPen pen(mediumGrey);
		dc.SetBrush(brush);
		dc.SetPen(pen);
	}

	dc.DrawRectangle(rect);

	if (style & wxTHUMBNAIL_TAGGED)
	{
		wxPen bluePen = ctrl->GetTagColour();
		dc.SetPen(bluePen);

		dc.DrawLine(rect.GetRight(), rect.GetTop(), rect.GetRight(), rect.GetBottom());
		dc.DrawLine(rect.GetLeft(), rect.GetBottom(), rect.GetRight() + 1, rect.GetBottom());

		dc.DrawLine(rect.GetLeft(), rect.GetTop(), rect.GetRight(), rect.GetTop());
		dc.DrawLine(rect.GetLeft(), rect.GetTop(), rect.GetLeft(), rect.GetBottom());
	}
	else if (ctrl->IsOutlinesShown())
	{
		if (style & wxTHUMBNAIL_SELECTED)
		{
			dc.SetPen(*wxWHITE_PEN);
			dc.DrawLine(rect.GetRight(), rect.GetTop(), rect.GetRight(), rect.GetBottom());
			dc.DrawLine(rect.GetLeft(), rect.GetBottom(), rect.GetRight() + 1, rect.GetBottom());

			dc.SetPen(*wxBLACK_PEN);
			dc.DrawLine(rect.GetLeft(), rect.GetTop(), rect.GetRight(), rect.GetTop());
			dc.DrawLine(rect.GetLeft(), rect.GetTop(), rect.GetLeft(), rect.GetBottom());
		}
		else
		{
			dc.SetPen(*wxBLACK_PEN);
			dc.DrawLine(rect.GetRight(), rect.GetTop(), rect.GetRight(), rect.GetBottom());
			dc.DrawLine(rect.GetLeft(), rect.GetBottom(), rect.GetRight() + 1, rect.GetBottom());

			dc.SetPen(*wxWHITE_PEN);
			dc.DrawLine(rect.GetLeft(), rect.GetTop(), rect.GetRight(), rect.GetTop());
			dc.DrawLine(rect.GetLeft(), rect.GetTop(), rect.GetLeft(), rect.GetBottom());
		}
	}

	wxString filename = wxFileNameFromPath(m_filename);
	if (!filename.IsEmpty() && (ctrl->GetWindowStyle() & wxTH_TEXT_LABEL))
	{
		dc.SetFont(ctrl->GetFont());
		if (style & wxTHUMBNAIL_SELECTED)
			dc.SetTextForeground(*wxWHITE);
		else
			dc.SetTextForeground(*wxBLACK);
		dc.SetBackgroundMode(wxTRANSPARENT);

		int margin = ctrl->GetThumbnailMargin();

		wxRect fRect;
		fRect.x = rect.x + margin;
		fRect.y = rect.y + rect.height - (rect.height - imageRect.height) / 2 + margin;
		fRect.width = rect.width - 2 * margin;
		fRect.height = (rect.height - imageRect.height) / 2 - 2 * margin;

		wxCoord textW, textH;
		dc.GetTextExtent(filename, &textW, &textH);

		dc.SetClippingRegion(fRect);
		int x = fRect.x + wxMax(0, (fRect.width - textW) / 2);
		int y = fRect.y;
		dc.DrawText(filename, x, y);
		dc.DestroyClippingRegion();
	}
	if (!filename.IsEmpty())
	{
		wxString file, name, ext;
		//  wxSplitPath(filename, & file, & name, & ext);
		wxFileName::SplitPath(filename, &file, &name, &ext);

		if (!ext.IsEmpty() && (ctrl->GetWindowStyle() & wxTH_EXTENSION_LABEL))
		{
			ext.MakeUpper();

			dc.SetFont(ctrl->GetFont());
			if (style & wxTHUMBNAIL_SELECTED)
				dc.SetTextForeground(*wxWHITE);
			else
				dc.SetTextForeground(ctrl->GetTypeColour());
			dc.SetBackgroundMode(wxTRANSPARENT);

			int margin = ctrl->GetThumbnailMargin();

			wxRect fRect;
			fRect.x = rect.x + margin;
			fRect.y = rect.y + margin;
			fRect.width = rect.width - 2 * margin;
			fRect.height = (rect.height - imageRect.height) / 2 - 2 * margin;

			wxCoord textW, textH;
			dc.GetTextExtent(ext, &textW, &textH);

			dc.SetClippingRegion(fRect);
			int x = fRect.x;
			int y = fRect.y;
			dc.DrawText(ext, x, y);
			dc.DestroyClippingRegion();
		}
	}
	// Draw tag bitmap
	if (style & wxTHUMBNAIL_TAGGED)
	{
		const wxBitmap& tagBitmap = ctrl->GetTagBitmap();
		if (tagBitmap.Ok())
		{
			int x = rect.x + rect.width - tagBitmap.GetWidth() - ctrl->GetThumbnailMargin();
			int y = rect.y + ctrl->GetThumbnailMargin();
			dc.DrawBitmap(tagBitmap, x, y, true);
		}
	}

	// If the item itself is the focus, draw a dotted
	// rectangle around it
	if (style & wxTHUMBNAIL_IS_FOCUS)
	{
		wxPen dottedPen(ctrl->GetFocusRectColour(), 1, wxDOT);
		dc.SetPen(dottedPen);
		dc.SetBrush(*wxTRANSPARENT_BRUSH);
		wxRect focusRect = imageRect;
		focusRect.x--;
		focusRect.y--;
		focusRect.width += 2;
		focusRect.height += 2;
		dc.DrawRectangle(focusRect);
	}

	return true;
}

wxSize wxThumbnailCtrl::DoGetBestSize() const
{
	return wxWindow::DoGetBestSize();
}

/*!
* wxImageThumbnailItem
*/

IMPLEMENT_CLASS(wxImageThumbnailItem, wxThumbnailItem)

// Draw the item
bool wxImageThumbnailItem::Draw(wxDC& dc, wxThumbnailCtrl* WXUNUSED(ctrl), const wxRect& rect, int WXUNUSED(style), int WXUNUSED(index))
{
	if (m_cachedBitmap.Ok())
	{
		int x = rect.x + (rect.width - m_cachedBitmap.GetWidth()) / 2;
		int y = rect.y + (rect.height - m_cachedBitmap.GetHeight()) / 2;

		// Work around apparent eVC++ bug (image not drawing properly)
#ifdef __WXWINCE__
		wxBitmap tmpBitmap = m_cachedBitmap;
		dc.DrawBitmap(tmpBitmap, x, y);
#else
		dc.DrawBitmap(m_cachedBitmap, x, y);
#endif
	}
	return true;
}

/// Load the thumbnail
bool wxImageThumbnailItem::Load(wxThumbnailCtrl* ctrl, bool forceLoad)
{
	if (m_cachedBitmap.Ok() && !forceLoad)
		return true;

	if (wxFileExists(m_filename))
	{
		wxLogNull logNo;
		wxImage image;
		if (image.LoadFile(m_filename, wxBITMAP_TYPE_ANY))
		{
			wxSize thumbnailSize = ctrl->GetThumbnailImageSize();
			double scaleX = ((double)thumbnailSize.x) / ((double)image.GetWidth());
			double scaleY = ((double)thumbnailSize.y) / ((double)image.GetHeight());

			if (scaleX < 1.0 || scaleY < 1.0)
			{
				double scale = wxMin(scaleX, scaleY);
				int newWidth = (int)(scale * image.GetWidth());
				int newHeight = (int)(scale * image.GetHeight());
				image.Rescale(newWidth, newHeight);
			}
			m_cachedBitmap = wxBitmap(image);

			return true;
		}
	}                                                      
	return false;
}

	// Create a multiple-selection thumbnail control
	wxThumbnailCtrl* imageBrowser =
		new wxThumbnailCtrl(gallery_window, wxID_ANY,
			wxDefaultPosition, wxSize(300, 400),
			wxSUNKEN_BORDER | wxHSCROLL | wxVSCROLL | wxTH_TEXT_LABEL |
			wxTH_IMAGE_LABEL | wxTH_EXTENSION_LABEL | wxTH_MULTIPLE_SELECT);
	// Set a nice big thumbnail size
	imageBrowser->SetThumbnailImageSize(wxSize(200, 200));
	// Don’t paint while filling the control
	imageBrowser->Freeze();
	// Set some bright colors
/*
	imageBrowser->SetUnselectedThumbnailBackgroundColour(*wxRED);

	imageBrowser->SetSelectedThumbnailBackgroundColour(*wxGREEN, *wxBLUE);*/

	// Add images from directory ‘path’
/*
	wxDir dir;
	std::string path = "C:/Users/Challenger/Pictures/";
	if (dir.Open(path))

	{

		wxString filename;

		bool cont = dir.GetFirst(&filename, wxT("*.jpg"), wxDIR_FILES);

		while (cont)

		{

			wxString file = path + wxFILE_SEP_PATH + filename;
			if (wxFileExists(file))
			{*/
	imageBrowser->Append(new wxImageThumbnailItem("C:/Users/Challenger/Pictures/karpathy.jpg"));
	imageBrowser->Append(new wxImageThumbnailItem("C:/Users/Challenger/Pictures/karpathy.jpg"));
	imageBrowser->Append(new wxImageThumbnailItem("C:/Users/Challenger/Pictures/karpathy.jpg"));
	imageBrowser->Append(new wxImageThumbnailItem("C:/Users/Challenger/Pictures/karpathy.jpg"));
	imageBrowser->Append(new wxImageThumbnailItem("C:/Users/Challenger/Pictures/karpathy.jpg"));
	imageBrowser->Append(new wxImageThumbnailItem("C:/Users/Challenger/Pictures/karpathy.jpg"));
	imageBrowser->Append(new wxImageThumbnailItem("C:/Users/Challenger/Pictures/karpathy.jpg"));
	imageBrowser->Append(new wxImageThumbnailItem("C:/Users/Challenger/Pictures/karpathy.jpg"));
	imageBrowser->Append(new wxImageThumbnailItem("C:/Users/Challenger/Pictures/karpathy.jpg"));
	imageBrowser->Append(new wxImageThumbnailItem("C:/Users/Challenger/Pictures/karpathy.jpg"));
	imageBrowser->Append(new wxImageThumbnailItem("C:/Users/Challenger/Pictures/karpathy.jpg"));
	imageBrowser->Append(new wxImageThumbnailItem("C:/Users/Challenger/Pictures/karpathy.jpg"));
	imageBrowser->Append(new wxImageThumbnailItem("C:/Users/Challenger/Pictures/karpathy.jpg"));
	imageBrowser->Append(new wxImageThumbnailItem("C:/Users/Challenger/Pictures/karpathy.jpg"));
	imageBrowser->Append(new wxImageThumbnailItem("C:/Users/Challenger/Pictures/karpathy.jpg"));
	imageBrowser->Append(new wxImageThumbnailItem("C:/Users/Challenger/Pictures/karpathy.jpg"));
	imageBrowser->Append(new wxImageThumbnailItem("C:/Users/Challenger/Pictures/karpathy.jpg"));
	imageBrowser->Append(new wxImageThumbnailItem("C:/Users/Challenger/Pictures/karpathy.jpg"));
	imageBrowser->Append(new wxImageThumbnailItem("C:/Users/Challenger/Pictures/karpathy.jpg"));

	imageBrowser->Append(new wxImageThumbnailItem("C:/Users/Challenger/Pictures/karpathy.jpg"));
	/*		}
			cont = dir.GetNext(&filename);
		}
	}*/
	//// Tag and select the first thumbnail
	//imageBrowser->Tag(0);
	//imageBrowser->Select(0);
	//// Delete the second thumbnail
	//imageBrowser->Delete(1);
	//// Now display the images
	imageBrowser->Thaw();
	imageBrowser->Show();