//
/// Event handler for the WM_HELP message.
//
void
THelpFileManager::EvHelp(const HELPINFO& hi)
{
THelpContext context;
bool success = false;
uint hlpCmd = HELP_CONTEXTPOPUP;
if (hi.iContextType == HELPINFO_MENUITEM){
success = GetHelpContextFromMenu(context, hi.iCtrlId);
hlpCmd = HELP_CONTEXT;
}
else if (hi.iContextType == HELPINFO_WINDOW)
success = GetHelpContextFromControl(context, hi.iCtrlId, (HWND)hi.hItemHandle);
LastHit = hi.MousePos;
if (::GetKeyState(VK_F1) < 0 && ::GetKeyState(VK_SHIFT) < 0)
{
TWindow* wnd = context.GetWindow();
TWindow* child = wnd->ChildWithId(hi.iCtrlId);
LastHit = TPoint(wnd->GetWindowAttr().X + child->GetWindowAttr().X, wnd->GetWindowAttr().Y + child->GetWindowAttr().Y);
}
else if(::GetKeyState(VK_F1) < 0)
LastHit = TPoint(-1, -1);
if (success)
ActivateHelp(context.GetWindow(), context.GetHelpFileContextId(), hlpCmd);
}
//
/// Insert a decoration window at the left of the client area, possibly to the
/// left of another given decoration or the client
//
void
TDecoratedFrame::InsertAtLeft(TWindow& decoration, TWindow* insertLeftOf)
{
TLayoutMetrics metrics;
TWindow* insertRightOf;
// Get the layout metrics for "insertLeftOf"(the window the decoration is
// going to be inserted to the left of)
//
GetChildLayoutMetrics(*insertLeftOf, metrics);
insertRightOf = metrics.X.RelWin;
// If "insertLeftOf" has a border then set its left edge to be the same as
// the decoration's right edge; otherwise place its left edge one pixel to
// the right of the decoration's right edge
//
metrics.X.Set(lmLeft,
insertLeftOf->GetWindowAttr().Style & WS_BORDER ? lmSameAs : lmRightOf,
&decoration, lmRight);
SetChildLayoutMetrics(*insertLeftOf, metrics);
// Now set the layout metrics for the decoration so it's left edge is the
// same as the right edge of "insertRightOf"
//
bool overlap = (decoration.GetWindowAttr().Style & WS_BORDER);
metrics.X.Set(lmLeft, overlap ? lmSameAs : lmRightOf, insertRightOf,
insertRightOf ? lmRight : lmLeft);
metrics.Width.AsIs(lmWidth);
// If the client window & decoration both have or don't have borders then
// place the decoration so its "y" and "bottom" are the same as the client
// windows; otherwise place its "y" above/below the client window's "y" and
// its "bottom" below/above the client window's "bottom" based on who's has
// borders & who doesn't
//
// This way if there are top or bottom decorations they will be tiled
// over/under the left/right decorations
//
if (ToBool(ClientWnd->GetWindowAttr().Style & WS_BORDER) == overlap) {
metrics.Y.SameAs(ClientWnd, lmTop);
metrics.Height.SameAs(ClientWnd, lmBottom);
}
else if (overlap) {
metrics.Y.Set(lmTop, lmAbove, ClientWnd, lmTop);
metrics.Height.Set(lmBottom, lmBelow, ClientWnd, lmBottom);
}
else {
metrics.Y.Set(lmTop, lmBelow, ClientWnd, lmTop);
metrics.Height.Set(lmBottom, lmAbove, ClientWnd, lmBottom);
}
SetChildLayoutMetrics(decoration, metrics);
}
//
/// Insert a decoration window at the bottom of the client area, possibly below
/// another given decoration or the client
//
void
TDecoratedFrame::InsertAtBottom(TWindow& decoration, TWindow* insertBelow)
{
TLayoutMetrics metrics;
TWindow* insertAbove;
// Get the layout metrics for "insertBelow"(the window the decoration is
// going to be inserted below)
//
GetChildLayoutMetrics(*insertBelow, metrics);
if (insertBelow == ClientWnd) {
insertAbove = metrics.Height.RelWin;
// If the client window has a border then set the client window's bottom
// to be the same as the top edge of the decoration; otherwise set the
// client window's bottom edge to be above the decoration's top edge
//
metrics.Height.Set(lmBottom,
ClientWnd->GetWindowAttr().Style & WS_BORDER ? lmSameAs : lmAbove,
&decoration, lmTop);
}
else {
insertAbove = metrics.Y.RelWin;
// Set the bottom edge of "insertBelow" to be the same as the top edge of
// the decoration
//
metrics.Y.Set(lmBottom, lmSameAs, &decoration, lmTop);
}
SetChildLayoutMetrics(*insertBelow, metrics);
// Now set the layout metrics for the decoration so its bottom edge is the
// same as the top edge of "insertAbove"
//
bool overlap = (decoration.GetWindowAttr().Style & WS_BORDER);
metrics.Y.Set(lmBottom, overlap ? lmSameAs : lmAbove, insertAbove,
insertAbove ? lmTop : lmBottom);
metrics.Height.AsIs(lmHeight);
metrics.X.Set(lmLeft, overlap ? lmSameAs : lmRightOf, lmParent, lmLeft);
metrics.Width.Set(lmRight, overlap ? lmSameAs : lmLeftOf, lmParent, lmRight);
SetChildLayoutMetrics(decoration, metrics);
}
//
/// Insert a decoration window into position at one of the four edges.
//
/// After you specify where the decoration should be placed, Insert adds it just
/// above, below, left, or right of the client window. This process is especially
/// important when there are multiple decorations. Insert looks at the decoration's
/// Attr.Style member and checks the WS_VISIBLE flag to tell whether the decoration
/// should initially be visible or hidden.
/// To position the decoration, Insert uses TLocation enum, which describes Top,
/// Left, Bottom, and Right positions where the decoration can be placed.
//
void
TDecoratedFrame::Insert(TWindow& decoration, TLocation location)
{
// Store away location for remove/re-insetion
//
SetLocation(decoration, location);
// Make sure the decoration has clipsiblings style, since our rearranging
// causes corners to overlap sometimes.
//
ModifyStyle(0, WS_CLIPSIBLINGS);//|WS_CLIPCHILDREN);///????
// Parent to decframe and remove layoutmetrics in case it's a re-insert
//
decoration.SetParent(this);
RemoveChildLayoutMetrics(decoration);
// If the window should be visible, proceed with insertion.
// NOTE: Should we check the 'wfInsertAtEdge' flag here? It mostly
// important when hiding/showing decorations [i.e. In EvCommand
// handler]. However, it would be nice to check for it and use
// something other than ClientWnd if necessary.
//
if (decoration.GetWindowAttr().Style & WS_VISIBLE) {
switch (location) {
case None:
break;
case Top:
InsertAtTop(decoration, ClientWnd);
break;
case Bottom:
InsertAtBottom(decoration, ClientWnd);
break;
case Left:
InsertAtLeft(decoration, ClientWnd);
break;
case Right:
InsertAtRight(decoration, ClientWnd);
break;
default: //JJH added empty default statement
break;
}
}
}
//
/// Insert a decoration window at the top of the client area, possibly above
/// another given decoration or the client
//
void
TDecoratedFrame::InsertAtTop(TWindow& decoration, TWindow* insertAbove)
{
TLayoutMetrics metrics;
TWindow* insertBelow;
// Get the layout metrics for "insertAbove" (the window the decoration is
// going to be inserted above)
//
GetChildLayoutMetrics(*insertAbove, metrics);
insertBelow = metrics.Y.RelWin;
// If "insertAbove" has a border then set its top edge to be the same as
// the decoration's bottom edge; otherwise place its top edge below the
// decoration's bottom edge
//
metrics.Y.Set(lmTop,
insertAbove->GetWindowAttr().Style & WS_BORDER ? lmSameAs : lmBelow,
&decoration, lmBottom);
SetChildLayoutMetrics(*insertAbove, metrics);
// Now set the layout metrics for the decoration so its top edge is the same
// as or below the bottom edge of "insertBelow" (they overlap if WS_BORDER)
// !CQ want to use lmBelow if no border!?
//
bool overlap = (decoration.GetWindowAttr().Style & WS_BORDER);
metrics.Y.Set(lmTop, overlap ? lmSameAs : lmBelow,
insertBelow, insertBelow ? lmBottom : lmTop);
metrics.Height.AsIs(lmHeight);
metrics.X.Set(lmLeft, overlap ? lmSameAs : lmRightOf, lmParent, lmLeft);
metrics.Width.Set(lmRight, overlap ? lmSameAs : lmLeftOf, lmParent, lmRight);
SetChildLayoutMetrics(decoration, metrics);
}
//
/// Causes the window to resize and position its children according to the specified
/// metrics. You can call Layout to implement changes that occur in the layout
/// metrics.
//
void
TLayoutWindow::Layout()
{
if (ChildMetrics) {
TChildMetrics* childMetrics;
GetFontHeight();
// Initialize the parent's variables
//
Variables[2].Value = ClientSize.cx - 1;
Variables[3].Value = ClientSize.cy - 1;
TRACEX(OwlLayout, 0, _T("Layout() ClientSize: ") << ClientSize);
if (hasBorder(this)) {
int cxBorder = TUIMetric::CxBorder;
int cyBorder = TUIMetric::CyBorder;
Variables[0].Value = -cxBorder;
Variables[1].Value = -cyBorder;
Variables[2].Value += cxBorder;
Variables[3].Value += cyBorder;
}
else {
Variables[0].Value = 0;
Variables[1].Value = 0;
}
TRACEX(OwlLayout, 1, _T("Layout() Variables: 0=>") << Variables[0] << _T(", 1=>" << Variables[1]<< ", 2=>" << Variables[2]<< ", 3=>") << Variables[3]);
// Rebuild layout plan if necessary
//
if (PlanIsDirty) {
PlanIsDirty = false;
for (childMetrics = ChildMetrics; childMetrics;
childMetrics = childMetrics->Next)
BuildConstraints(*childMetrics);
BuildPlan();
}
// Use the plan to calculate actual child window position values
//
ExecutePlan();
// Find out how many windows we're dealing with
//
int numWindows = 0;
for (childMetrics = ChildMetrics; childMetrics; childMetrics = childMetrics->Next) {
TWindow* win = childMetrics->Child;
if (win->GetHandle())
numWindows++;
}
#if !defined(OWL_NO_DEFERWINDOWPOS_LAYOUT)
// Helper object to use 'DefWindowPos' API
//
TDeferWinPos dwp(numWindows);
#endif
// Do actual resizing
//
for (childMetrics = ChildMetrics; childMetrics; childMetrics = childMetrics->Next) {
TWindow* win = childMetrics->Child;
TVariable* variables = childMetrics->Variables;
TRACEX(OwlLayout, 0, _T("Layout() variables: ") << variables[0] << _T(',') <<
variables[1] << _T(',') << variables[2] << _T(',') << variables[3]);
if (win->GetHandle()) {
#if defined(OWL_NO_DEFERWINDOWPOS_LAYOUT)
win->SetWindowPos(
0,
variables[0].Value,
variables[1].Value,
variables[2].Value - variables[0].Value + 1,
variables[3].Value - variables[1].Value + 1,
SWP_NOACTIVATE | SWP_NOZORDER
);
#else
dwp.DeferWindowPos(*win, 0,
variables[0].Value,
variables[1].Value,
variables[2].Value - variables[0].Value + 1,
variables[3].Value - variables[1].Value + 1,
SWP_NOACTIVATE | SWP_NOZORDER);
#endif
}
else {
win->GetWindowAttr().X = variables[0].Value;
win->GetWindowAttr().Y = variables[1].Value;
win->GetWindowAttr().W = variables[2].Value - variables[0].Value + 1;
win->GetWindowAttr().H = variables[3].Value - variables[1].Value + 1;
}
}
}
}
inline void SetLocation(TWindow& w, TDecoratedFrame::TLocation loc) {
w.GetWindowAttr().Style = (w.GetWindowAttr().Style & ~locMask) | (uint32(loc) << locShift);
}
inline TDecoratedFrame::TLocation GetLocation(TWindow& w) {
return TDecoratedFrame::TLocation(uint16((w.GetWindowAttr().Style & locMask) >> locShift));
}