Added wxTopLevelWindow::SetTranslucency and CanSetTranslucency, with

implementations (so far) for wxMSW and wxMac.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@40112 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robin Dunn
2006-07-16 03:28:23 +00:00
parent 0b850f25d2
commit 50f3c41d61
11 changed files with 226 additions and 166 deletions

View File

@@ -86,54 +86,6 @@ static void DrawResizeHint(wxDC& dc, const wxRect& rect)
}
// on supported windows systems (Win2000 and greater, Mac), this function
// will make a frame window transparent by a certain amount
static void MakeWindowTransparent(wxWindow* wnd, int amount)
{
#if defined(__WXMSW__)
// this API call is not in all SDKs, only the newer ones, so
// we will runtime bind this
typedef DWORD (WINAPI *PSETLAYEREDWINDOWATTR)(HWND, DWORD, BYTE, DWORD);
static PSETLAYEREDWINDOWATTR pSetLayeredWindowAttributes = NULL;
static HMODULE h = NULL;
HWND hwnd = (HWND)wnd->GetHWND();
if (!h)
h = LoadLibrary(_T("user32"));
if (!pSetLayeredWindowAttributes)
{
pSetLayeredWindowAttributes =
(PSETLAYEREDWINDOWATTR)GetProcAddress(h,
#ifdef __WXWINCE__
wxT("SetLayeredWindowAttributes")
#else
"SetLayeredWindowAttributes"
#endif
);
}
if (pSetLayeredWindowAttributes == NULL)
return;
LONG exstyle = GetWindowLong(hwnd, GWL_EXSTYLE);
if (0 == (exstyle & 0x80000) /*WS_EX_LAYERED*/)
SetWindowLong(hwnd, GWL_EXSTYLE, exstyle | 0x80000 /*WS_EX_LAYERED*/);
pSetLayeredWindowAttributes(hwnd, 0, (BYTE)amount, 2 /*LWA_ALPHA*/);
#elif defined(__WXMAC__)
WindowRef handle = GetControlOwner((OpaqueControlRef*)wnd->GetHandle());
SetWindowAlpha(handle, float(amount)/ 255.0);
#else
wxUnusedVar(wnd);
wxUnusedVar(amount);
#endif
}
// CopyDocksAndPanes() - this utility function creates copies of
// the dock and pane info. wxDockInfo's usually contain pointers
@@ -542,6 +494,40 @@ void wxFrameManager::SetManagedWindow(wxWindow* frame)
CenterPane().PaneBorder(false));
}
#endif
// Make a window to use for a translucent hint
#if defined(__WXMSW__)
m_hint_wnd = new wxFrame(m_frame, -1, wxEmptyString, wxDefaultPosition, wxSize(1,1),
wxFRAME_TOOL_WINDOW |
wxFRAME_FLOAT_ON_PARENT |
wxFRAME_NO_TASKBAR |
wxNO_BORDER);
m_hint_wnd->SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_ACTIVECAPTION));
#elif defined(__WXMAC__)
// Using a miniframe with float and tool styles keeps the parent
// frame activated and highlighted as such...
m_hint_wnd = new wxMiniFrame(m_frame, -1, wxEmptyString, wxDefaultPosition, wxSize(1,1),
wxFRAME_FLOAT_ON_PARENT
| wxFRAME_TOOL_WINDOW
| wxCAPTION );
// Can't set the bg colour of a Frame in wxMac
wxPanel* p = new wxPanel(m_hint_wnd);
// The default wxSYS_COLOUR_ACTIVECAPTION colour is a light silver
// color that is really hard to see, especially transparent.
// Until a better system color is decided upon we'll just use
// blue.
p->SetBackgroundColour(*wxBLUE);
#endif
if (m_hint_wnd && !m_hint_wnd->CanSetTranslucency())
{
m_hint_wnd->Close();
m_hint_wnd = NULL;
}
}
@@ -1822,7 +1808,7 @@ void wxFrameManager::Update()
// window should have this style by default
if (m_action == actionDragFloatingPane &&
(m_flags & wxAUI_MGR_TRANSPARENT_DRAG))
MakeWindowTransparent(frame, 150);
frame->SetTranslucency(150);
frame->SetPaneWindow(p);
p.frame = frame;
@@ -2450,29 +2436,12 @@ void wxFrameManager::OnHintFadeTimer(wxTimerEvent& WXUNUSED(event))
}
m_hint_fadeamt += 5;
MakeWindowTransparent(m_hint_wnd, m_hint_fadeamt);
m_hint_wnd->SetTranslucency(m_hint_fadeamt);
}
void wxFrameManager::ShowHint(const wxRect& rect)
{
#if defined(__WXMSW__) || defined(__WXMAC__)
// First, determine if the operating system can handle transparency.
// Transparency is available on Win2000 and above
static int os_type = -1;
static int ver_major = -1;
if (os_type == -1)
os_type = ::wxGetOsVersion(&ver_major);
// If the transparent flag is set, and the OS supports it,
// go ahead and use a transparent hint
if ((m_flags & wxAUI_MGR_TRANSPARENT_HINT) != 0
#ifdef __WXMSW__
&& os_type == wxWINDOWS_NT && ver_major >= 5
#endif
)
if ((m_flags & wxAUI_MGR_TRANSPARENT_HINT) != 0 && m_hint_wnd)
{
if (m_last_hint == rect)
return;
@@ -2482,50 +2451,18 @@ void wxFrameManager::ShowHint(const wxRect& rect)
if (m_flags & wxAUI_MGR_TRANSPARENT_HINT_FADE)
initial_fade = 0;
if (m_hint_wnd == NULL)
{
wxPoint pt = rect.GetPosition();
wxSize size = rect.GetSize();
#if defined(__WXMSW__)
m_hint_wnd = new wxFrame(m_frame, -1, wxEmptyString, pt, size,
wxFRAME_TOOL_WINDOW |
wxFRAME_FLOAT_ON_PARENT |
wxFRAME_NO_TASKBAR |
wxNO_BORDER);
MakeWindowTransparent(m_hint_wnd, initial_fade);
m_hint_wnd->SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_ACTIVECAPTION));
#elif defined(__WXMAC__)
// Using a miniframe with float and tool styles keeps the parent
// frame activated and highlighted as such...
m_hint_wnd = new wxMiniFrame(m_frame, -1, wxEmptyString, pt, size,
wxFRAME_FLOAT_ON_PARENT
| wxFRAME_TOOL_WINDOW
| wxCAPTION );
// Can't set the bg colour of a Frame in wxMac
wxPanel* p = new wxPanel(m_hint_wnd);
// The default wxSYS_COLOUR_ACTIVECAPTION colour is a light silver
// color that is really hard to see, especially transparent.
// Until a better system color is decided upon we'll just use
// blue.
p->SetBackgroundColour(*wxBLUE);
#endif
if (! m_hint_wnd->IsShown())
m_hint_wnd->Show();
// if we are dragging a floating pane, set the focus
// back to that floating pane (otherwise it becomes unfocused)
if (m_action == actionDragFloatingPane && m_action_window)
m_action_window->SetFocus();
// if we are dragging a floating pane, set the focus
// back to that floating pane (otherwise it becomes unfocused)
if (m_action == actionDragFloatingPane && m_action_window)
m_action_window->SetFocus();
}
else
{
MakeWindowTransparent(m_hint_wnd, initial_fade);
m_hint_wnd->SetSize(rect);
m_hint_wnd->Raise();
}
m_hint_wnd->SetTranslucency(initial_fade);
m_hint_wnd->SetSize(rect);
m_hint_wnd->Raise();
if (m_flags & wxAUI_MGR_TRANSPARENT_HINT_FADE)
{
@@ -2534,54 +2471,55 @@ void wxFrameManager::ShowHint(const wxRect& rect)
m_hint_fadetimer.SetOwner(this, 101);
m_hint_fadetimer.Start(5);
}
return;
}
#endif
if (m_last_hint != rect)
{
// remove the last hint rectangle
m_last_hint = rect;
m_frame->Refresh();
m_frame->Update();
}
wxScreenDC screendc;
wxRegion clip(1, 1, 10000, 10000);
// clip all floating windows, so we don't draw over them
int i, pane_count;
for (i = 0, pane_count = m_panes.GetCount(); i < pane_count; ++i)
else // Not using a translucent hint window...
{
wxPaneInfo& pane = m_panes.Item(i);
if (pane.IsFloating() &&
pane.frame->IsShown())
if (m_last_hint != rect)
{
wxRect rect = pane.frame->GetRect();
#ifdef __WXGTK__
// wxGTK returns the client size, not the whole frame size
rect.width += 15;
rect.height += 35;
rect.Inflate(5);
#endif
clip.Subtract(rect);
// remove the last hint rectangle
m_last_hint = rect;
m_frame->Refresh();
m_frame->Update();
}
wxScreenDC screendc;
wxRegion clip(1, 1, 10000, 10000);
// clip all floating windows, so we don't draw over them
int i, pane_count;
for (i = 0, pane_count = m_panes.GetCount(); i < pane_count; ++i)
{
wxPaneInfo& pane = m_panes.Item(i);
if (pane.IsFloating() &&
pane.frame->IsShown())
{
wxRect rect = pane.frame->GetRect();
#ifdef __WXGTK__
// wxGTK returns the client size, not the whole frame size
rect.width += 15;
rect.height += 35;
rect.Inflate(5);
#endif
clip.Subtract(rect);
}
}
screendc.SetClippingRegion(clip);
wxBitmap stipple = wxPaneCreateStippleBitmap();
wxBrush brush(stipple);
screendc.SetBrush(brush);
screendc.SetPen(*wxTRANSPARENT_PEN);
screendc.DrawRectangle(rect.x, rect.y, 5, rect.height);
screendc.DrawRectangle(rect.x+5, rect.y, rect.width-10, 5);
screendc.DrawRectangle(rect.x+rect.width-5, rect.y, 5, rect.height);
screendc.DrawRectangle(rect.x+5, rect.y+rect.height-5, rect.width-10, 5);
}
screendc.SetClippingRegion(clip);
wxBitmap stipple = wxPaneCreateStippleBitmap();
wxBrush brush(stipple);
screendc.SetBrush(brush);
screendc.SetPen(*wxTRANSPARENT_PEN);
screendc.DrawRectangle(rect.x, rect.y, 5, rect.height);
screendc.DrawRectangle(rect.x+5, rect.y, rect.width-10, 5);
screendc.DrawRectangle(rect.x+rect.width-5, rect.y, 5, rect.height);
screendc.DrawRectangle(rect.x+5, rect.y+rect.height-5, rect.width-10, 5);
}
void wxFrameManager::HideHint()
@@ -2589,7 +2527,7 @@ void wxFrameManager::HideHint()
// hides a transparent window hint, if there is one
if (m_hint_wnd)
{
MakeWindowTransparent(m_hint_wnd, 0);
m_hint_wnd->SetTranslucency(0);
m_hint_fadetimer.Stop();
m_last_hint = wxRect();
return;
@@ -2696,7 +2634,7 @@ void wxFrameManager::OnFloatingPaneMoveStart(wxWindow* wnd)
wxASSERT_MSG(pane.IsOk(), wxT("Pane window not found"));
if (m_flags & wxAUI_MGR_TRANSPARENT_DRAG)
MakeWindowTransparent(pane.frame, 150);
pane.frame->SetTranslucency(150);
}
void wxFrameManager::OnFloatingPaneMoving(wxWindow* wnd)
@@ -2782,16 +2720,12 @@ void wxFrameManager::OnFloatingPaneMoved(wxWindow* wnd)
// if a key modifier is pressed while dragging the frame,
// don't dock the window
if (wxGetKeyState(WXK_CONTROL) || wxGetKeyState(WXK_ALT))
if (!wxGetKeyState(WXK_CONTROL) && !wxGetKeyState(WXK_ALT))
{
HideHint();
return;
// do the drop calculation
DoDrop(m_docks, m_panes, pane, client_pt, action_offset);
}
// do the drop calculation
DoDrop(m_docks, m_panes, pane, client_pt, action_offset);
// if the pane is still floating, update it's floating
// position (that we store)
if (pane.IsFloating())
@@ -2799,7 +2733,7 @@ void wxFrameManager::OnFloatingPaneMoved(wxWindow* wnd)
pane.floating_pos = pane.frame->GetPosition();
if (m_flags & wxAUI_MGR_TRANSPARENT_DRAG)
MakeWindowTransparent(pane.frame, 255);
pane.frame->SetTranslucency(255);
}
Update();