Skein::Node* TranscriptWindow::FindRelevantNode(FindAction action, bool next, bool selected)
{
// Get all the nodes in the transcript or skein
CArray<Skein::Node*,Skein::Node*> nodes;
if (action == SkeinDifferent)
{
ASSERT(next);
m_skein->GetAllNodes(nodes);
}
else
{
Skein::Node* node = m_skeinEndThread;
while (node != NULL)
{
if (next)
nodes.InsertAt(0,node);
else
nodes.Add(node);
node = node->GetParent();
}
}
if (next)
nodes.InsertAt(0,(Skein::Node*)NULL);
// Return the next relevant node after the selected node (which may be NULL)
bool afterSelected = false;
for (int i = 0; i < nodes.GetSize(); i++)
{
if (afterSelected == false)
{
if (nodes.GetAt(i) == (selected ? m_skeinSelected : NULL))
afterSelected = true;
}
else
{
switch (action)
{
case TranscriptDifferent:
case SkeinDifferent:
if (nodes.GetAt(i)->GetDiffers() != Skein::Node::ExpectedSame)
return nodes.GetAt(i);
break;
case TranscriptChanged:
if (nodes.GetAt(i)->GetChanged())
return nodes.GetAt(i);
break;
default:
ASSERT(FALSE);
break;
}
}
}
// If nothing found, then if searching the whole skein, start from the beginning
if ((action == SkeinDifferent) && selected)
return FindRelevantNode(action,next,false);
return NULL;
}
void SkeinWindow::DrawNode(Skein::Node* node, CDC& dc, CDibSection& bitmap, const CRect& client,
const CPoint& centre)
{
// Store the current device context properties
UINT align = dc.GetTextAlign();
int mode = dc.GetBkMode();
// Set the device context properties
dc.SetTextAlign(TA_TOP|TA_LEFT);
dc.SetBkMode(TRANSPARENT);
// Get the text associated with the node
LPCWSTR line = node->GetLine();
LPCWSTR label = node->GetLabel();
int width = node->GetLineWidth(dc,&m_labelFont);
// Check if this node is visible before drawing
CRect nodeArea(centre,CSize(width+m_fontSize.cx*10,m_fontSize.cy*3));
nodeArea.OffsetRect(nodeArea.Width()/-2,nodeArea.Height()/-2);
CRect intersect;
if (intersect.IntersectRect(client,nodeArea))
{
CDibSection* back = m_bitmaps[BackUnplayed];
bool gameRunning = GetParentFrame()->SendMessage(WM_GAMERUNNING) != 0;
Skein::Node* playNode = gameRunning ? m_skein->GetPlayed() : m_skein->GetCurrent();
while (playNode != NULL)
{
if (playNode == node)
{
back = m_bitmaps[BackPlayed];
break;
}
playNode = playNode->GetParent();
}
if (node->GetExpectedText().IsEmpty())
{
if (back == m_bitmaps[BackPlayed])
back = m_bitmaps[BackPlayedDark];
else if (back == m_bitmaps[BackUnplayed])
back = m_bitmaps[BackUnplayedDark];
}
// Draw the node's background
DrawNodeBack(node,dc,bitmap,centre,width,back);
// Write out the node's line
int textWidth = node->GetLineTextWidth();
::ExtTextOutW(dc.GetSafeHdc(),centre.x-(textWidth/2),centre.y-(m_fontSize.cy/2),0,
NULL,line,(UINT)wcslen(line),NULL);
// Write out the node's label, if any
if (ShowLabel(node))
{
CFont* oldFont = dc.SelectObject(&m_labelFont);
SIZE size;
::GetTextExtentPoint32W(dc.GetSafeHdc(),label,(UINT)wcslen(label),&size);
::ExtTextOutW(dc.GetSafeHdc(),centre.x-(size.cx/2),centre.y-(int)(2.1*m_fontSize.cy),
0,NULL,label,(UINT)wcslen(label),NULL);
dc.SelectObject(oldFont);
}
}
// Reset the device context properties
dc.SetTextAlign(align);
dc.SetBkMode(mode);
}
void TranscriptWindow::Layout(void)
{
CRect clientRect;
GetClientRect(clientRect);
m_layout.clientSize = clientRect.Size();
m_layout.columnWidth = clientRect.Width()/2;
m_layout.font = theApp.GetFont(InformApp::FontDisplay);
m_layout.fontSize = theApp.MeasureFont(m_layout.font);
m_layout.margin = CSize(m_layout.fontSize.cx,m_layout.fontSize.cy/3);
m_layout.centreMargin = m_layout.margin.cx*4;
CDC* dc = GetDC();
m_layout.nodes.clear();
Skein::Node* node = m_skeinEndThread;
while (node != NULL)
{
NodeLayout nl;
nl.node = node;
// Get the text associated with the node
const CStringW& transcript = nl.node->GetTranscriptText();
const CStringW& expected = nl.node->GetExpectedText();
// Measure the height of the expected text
CRect textRect;
textRect.SetRectEmpty();
textRect.right = m_layout.columnWidth-m_layout.margin.cx-m_layout.centreMargin;
SizeText(*dc,textRect,expected);
nl.height = textRect.Height();
// Measure the height of the transcript text
textRect.SetRectEmpty();
textRect.right = m_layout.columnWidth-m_layout.margin.cx-m_layout.centreMargin;
SizeText(*dc,textRect,transcript);
if (textRect.Height() > nl.height)
nl.height = textRect.Height();
// Use the tallest for the height of the node in the transcript
if (m_layout.fontSize.cy > nl.height)
nl.height = m_layout.fontSize.cy;
m_layout.nodes.push_front(nl);
node = node->GetParent();
}
ReleaseDC(dc);
// Compare the height of the transcript with the height of the window
int height = GetHeight();
if (height > clientRect.Height())
{
// The transcript is taller than the window, so turn the scrollbar on
EnableScrollBar(SB_VERT,ESB_ENABLE_BOTH);
// Get the current scrollbar settings
SCROLLINFO scroll;
::ZeroMemory(&scroll,sizeof scroll);
scroll.cbSize = sizeof scroll;
GetScrollInfo(SB_VERT,&scroll);
// Change the maximum position and the size of the scrollbar
scroll.nMin = 0;
scroll.nMax = height-1;
scroll.nPage = clientRect.Height();
SetScrollInfo(SB_VERT,&scroll);
}
else
{
// The transcript is shorter than the window, so turn the scrollbar off
EnableScrollBar(SB_VERT,ESB_DISABLE_BOTH);
SCROLLINFO scroll;
::ZeroMemory(&scroll,sizeof scroll);
scroll.cbSize = sizeof scroll;
SetScrollInfo(SB_VERT,&scroll);
}
}
void SkeinWindow::OnContextMenu(CWnd* pWnd, CPoint point)
{
// No menu if currently editing
if (m_edit.IsWindowVisible())
return;
// No menu if running the game
bool gameRunning = GetParentFrame()->SendMessage(WM_GAMERUNNING) != 0;
bool gameWaiting = GetParentFrame()->SendMessage(WM_GAMEWAITING) != 0;
if (gameRunning && !gameWaiting)
return;
// Find the node under the mouse, if any
CPoint cp(point);
ScreenToClient(&cp);
Skein::Node* node = NodeAtPoint(cp);
if (node == NULL)
return;
// Get the context menu
CMenu popup;
popup.LoadMenu(IDR_SKEIN);
CMenu* menu = popup.GetSubMenu(0);
// Update the state of the context menu items
if (node->GetParent() == NULL)
{
menu->RemoveMenu(ID_SKEIN_EDIT,MF_BYCOMMAND);
menu->RemoveMenu(ID_SKEIN_ADD_LABEL,MF_BYCOMMAND);
menu->RemoveMenu(ID_SKEIN_EDIT_LABEL,MF_BYCOMMAND);
menu->RemoveMenu(ID_SKEIN_INSERT_KNOT,MF_BYCOMMAND);
menu->RemoveMenu(ID_SKEIN_DELETE,MF_BYCOMMAND);
menu->RemoveMenu(ID_SKEIN_DELETE_BELOW,MF_BYCOMMAND);
menu->RemoveMenu(ID_SKEIN_DELETE_THREAD,MF_BYCOMMAND);
menu->RemoveMenu(ID_SKEIN_LOCK,MF_BYCOMMAND|MF_GRAYED);
menu->RemoveMenu(ID_SKEIN_UNLOCK,MF_BYCOMMAND|MF_GRAYED);
menu->RemoveMenu(ID_SKEIN_LOCK_THREAD,MF_BYCOMMAND|MF_GRAYED);
menu->RemoveMenu(ID_SKEIN_UNLOCK_THREAD,MF_BYCOMMAND|MF_GRAYED);
}
else
{
if (gameRunning && m_skein->InCurrentThread(node))
{
menu->EnableMenuItem(ID_SKEIN_DELETE,MF_BYCOMMAND|MF_GRAYED);
menu->EnableMenuItem(ID_SKEIN_DELETE_BELOW,MF_BYCOMMAND|MF_GRAYED);
}
if (gameRunning && m_skein->InCurrentThread(m_skein->GetThreadTop(node)))
menu->EnableMenuItem(ID_SKEIN_DELETE_THREAD,MF_BYCOMMAND|MF_GRAYED);
if (node->GetLabel().IsEmpty())
menu->RemoveMenu(ID_SKEIN_EDIT_LABEL,MF_BYCOMMAND);
else
menu->RemoveMenu(ID_SKEIN_ADD_LABEL,MF_BYCOMMAND);
}
if (node->GetTemporary())
{
menu->RemoveMenu(ID_SKEIN_UNLOCK,MF_BYCOMMAND|MF_GRAYED);
menu->RemoveMenu(ID_SKEIN_UNLOCK_THREAD,MF_BYCOMMAND|MF_GRAYED);
}
else
{
menu->RemoveMenu(ID_SKEIN_LOCK,MF_BYCOMMAND|MF_GRAYED);
menu->RemoveMenu(ID_SKEIN_LOCK_THREAD,MF_BYCOMMAND|MF_GRAYED);
}
// Show the context menu
int cmd = menu->TrackPopupMenuEx(TPM_LEFTALIGN|TPM_TOPALIGN|TPM_NONOTIFY|TPM_RETURNCMD,
point.x,point.y,GetParentFrame(),NULL);
// Act on the context menu choice
switch (cmd)
{
case ID_SKEIN_PLAY:
GetParentFrame()->SendMessage(WM_PLAYSKEIN,(WPARAM)node);
break;
case ID_SKEIN_EDIT:
StartEdit(node,false);
break;
case ID_SKEIN_ADD_LABEL:
case ID_SKEIN_EDIT_LABEL:
// Make sure that the label background is visible
Invalidate();
StartEdit(node,true);
break;
case ID_SKEIN_TRANSCRIPT:
GetParentFrame()->SendMessage(WM_SHOWTRANSCRIPT,(WPARAM)node,(LPARAM)GetSafeHwnd());
break;
case ID_SKEIN_LOCK:
m_skein->Lock(node);
break;
case ID_SKEIN_UNLOCK:
m_skein->Unlock(node);
break;
case ID_SKEIN_LOCK_THREAD:
m_skein->Lock(m_skein->GetThreadBottom(node));
break;
case ID_SKEIN_UNLOCK_THREAD:
m_skein->Unlock(m_skein->GetThreadTop(node));
break;
case ID_SKEIN_NEW_THREAD:
{
Skein::Node* newNode = m_skein->AddNew(node);
// Force a repaint so that the new node is drawn and recorded
Invalidate();
UpdateWindow();
StartEdit(newNode,false);
}
break;
case ID_SKEIN_INSERT_KNOT:
{
Skein::Node* newNode = m_skein->AddNewParent(node);
Invalidate();
UpdateWindow();
StartEdit(newNode,false);
}
break;
case ID_SKEIN_DELETE:
if (CanRemove(node))
m_skein->RemoveSingle(node);
break;
case ID_SKEIN_DELETE_BELOW:
if (CanRemove(node))
m_skein->RemoveAll(node);
break;
case ID_SKEIN_DELETE_THREAD:
{
Skein::Node* topNode = m_skein->GetThreadTop(node);
if (CanRemove(topNode))
m_skein->RemoveAll(topNode);
}
break;
case ID_SKEIN_SAVE_TRANSCRIPT:
{
SimpleFileDialog dialog(FALSE,"txt",NULL,OFN_HIDEREADONLY|OFN_ENABLESIZING,
"Text Files (*.txt)|*.txt|All Files (*.*)|*.*||",this);
dialog.m_ofn.lpstrTitle = "Save the transcript up to this knot";
if (dialog.DoModal() == IDOK)
m_skein->SaveTranscript(node,dialog.GetPathName());
}
break;
case 0:
// Make sure this window still has the focus
SetFocus();
break;
}
}