X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ff0ea71ceacc214261f90946cfa7c9b5980c40fd..120678ee96cd38c8d10ead6e60135004b8e97f9e:/src/msw/dragimag.cpp diff --git a/src/msw/dragimag.cpp b/src/msw/dragimag.cpp index a2793f86bc..b56c1ef18a 100644 --- a/src/msw/dragimag.cpp +++ b/src/msw/dragimag.cpp @@ -6,21 +6,30 @@ // Created: 08/04/99 // RCS-ID: $Id$ // Copyright: (c) Julian Smart -// Licence: wxWindows licence +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ +// ============================================================================ +// declarations +// ============================================================================ + +// ---------------------------------------------------------------------------- +// headers +// ---------------------------------------------------------------------------- + +#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) #pragma implementation "dragimag.h" #endif // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" -#include "wx/msw/private.h" #ifdef __BORLANDC__ #pragma hdrstop #endif +#if wxUSE_DRAGIMAGE + #if defined(__WIN95__) #ifndef WX_PRECOMP @@ -33,30 +42,69 @@ #include "wx/settings.h" #endif +#include "wx/msw/private.h" #include "wx/log.h" #include "wx/intl.h" +#include "wx/frame.h" +#include "wx/image.h" #include "wx/msw/dragimag.h" #include "wx/msw/private.h" -#if (defined(__WIN95__) && !defined(__GNUWIN32__)) || defined(__TWIN32__) || defined(wxUSE_NORLANDER_HEADERS) +#ifdef __WXWINCE__ // for SM_CXCURSOR and SM_CYCURSOR +#include "wx/msw/wince/missing.h" +#endif // __WXWINCE__ + +#if defined(__WIN95__) && !(defined(__GNUWIN32_OLD__) && !defined(__CYGWIN10__)) #include #endif +// Wine doesn't have this yet +#ifndef ListView_CreateDragImage +#define ListView_CreateDragImage(hwnd, i, lpptUpLeft) \ + (HIMAGELIST)SNDMSG((hwnd), LVM_CREATEDRAGIMAGE, (WPARAM)(int)(i), (LPARAM)(LPPOINT)(lpptUpLeft)) +#endif + +// ---------------------------------------------------------------------------- +// macros +// ---------------------------------------------------------------------------- + IMPLEMENT_DYNAMIC_CLASS(wxDragImage, wxObject) +#define GetHimageList() ((HIMAGELIST) m_hImageList) + +// ============================================================================ +// implementation +// ============================================================================ + +// ---------------------------------------------------------------------------- +// wxDragImage ctors/dtor +// ---------------------------------------------------------------------------- + wxDragImage::wxDragImage() { - m_hImageList = 0; + Init(); } wxDragImage::~wxDragImage() { - if ( m_hImageList ) - ImageList_Destroy((HIMAGELIST) m_hImageList); - m_hImageList = 0; + if ( m_hImageList ) + ImageList_Destroy(GetHimageList()); +#if !wxUSE_SIMPLER_DRAGIMAGE + if ( m_hCursorImageList ) + ImageList_Destroy((HIMAGELIST) m_hCursorImageList); +#endif } +void wxDragImage::Init() +{ + m_hImageList = 0; +#if !wxUSE_SIMPLER_DRAGIMAGE + m_hCursorImageList = 0; +#endif + m_window = (wxWindow*) NULL; + m_fullScreen = false; +} // Attributes //////////////////////////////////////////////////////////////////////////// @@ -66,184 +114,343 @@ wxDragImage::~wxDragImage() //////////////////////////////////////////////////////////////////////////// // Create a drag image from a bitmap and optional cursor -bool wxDragImage::Create(const wxBitmap& image, const wxCursor& cursor, const wxPoint& hotspot) +bool wxDragImage::Create(const wxBitmap& image, const wxCursor& cursor) { - if ( m_hImageList ) - ImageList_Destroy((HIMAGELIST) m_hImageList); - m_hImageList = 0; + if ( m_hImageList ) + ImageList_Destroy(GetHimageList()); + m_hImageList = 0; + +#ifdef __WXWINCE__ + UINT flags = ILC_COLOR; +#else + UINT flags wxDUMMY_INITIALIZE(0) ; + if (image.GetDepth() <= 4) + flags = ILC_COLOR4; + else if (image.GetDepth() <= 8) + flags = ILC_COLOR8; + else if (image.GetDepth() <= 16) + flags = ILC_COLOR16; + else if (image.GetDepth() <= 24) + flags = ILC_COLOR24; + else + flags = ILC_COLOR32; +#endif - UINT flags = 0; - bool mask = TRUE; // ? - if ( mask ) - flags |= ILC_MASK; + bool mask = (image.GetMask() != 0); - m_hImageList = (WXHIMAGELIST) ImageList_Create(image.GetWidth(), image.GetHeight(), flags, 1, 1); + // Curiously, even if the image doesn't have a mask, + // we still have to use ILC_MASK or the image won't show + // up when dragged. +// if ( mask ) + flags |= ILC_MASK; - HBITMAP hBitmap1 = (HBITMAP) image.GetHBITMAP(); - HBITMAP hBitmap2 = 0; - if ( image.GetMask() ) - hBitmap2 = (HBITMAP) image.GetMask()->GetMaskBitmap(); + m_hImageList = (WXHIMAGELIST) ImageList_Create(image.GetWidth(), image.GetHeight(), flags, 1, 1); - int index = ImageList_Add((HIMAGELIST) m_hImageList, hBitmap1, hBitmap2); - if ( index == -1 ) + int index; + if (!mask) { - wxLogError(_("Couldn't add an image to the image list.")); + HBITMAP hBitmap1 = (HBITMAP) image.GetHBITMAP(); + index = ImageList_Add(GetHimageList(), hBitmap1, 0); } + else + { + HBITMAP hBitmap1 = (HBITMAP) image.GetHBITMAP(); + HBITMAP hBitmap2 = (HBITMAP) image.GetMask()->GetMaskBitmap(); + HBITMAP hbmpMask = wxInvertMask(hBitmap2); + index = ImageList_Add(GetHimageList(), hBitmap1, hbmpMask); + ::DeleteObject(hbmpMask); + } + if ( index == -1 ) + { + wxLogError(_("Couldn't add an image to the image list.")); + } m_cursor = cursor; // Can only combine with drag image after calling BeginDrag. - m_hotspot = hotspot; return (index != -1) ; } - + // Create a drag image from an icon and optional cursor -bool wxDragImage::Create(const wxIcon& image, const wxCursor& cursor, const wxPoint& hotspot) +bool wxDragImage::Create(const wxIcon& image, const wxCursor& cursor) { - if ( m_hImageList ) - ImageList_Destroy((HIMAGELIST) m_hImageList); - m_hImageList = 0; + if ( m_hImageList ) + ImageList_Destroy(GetHimageList()); + m_hImageList = 0; - UINT flags = 0; - bool mask = TRUE; // ? - if ( mask ) - flags |= ILC_MASK; +#ifdef __WXWINCE__ + UINT flags = ILC_COLOR; +#else + UINT flags wxDUMMY_INITIALIZE(0) ; + if (image.GetDepth() <= 4) + flags = ILC_COLOR4; + else if (image.GetDepth() <= 8) + flags = ILC_COLOR8; + else if (image.GetDepth() <= 16) + flags = ILC_COLOR16; + else if (image.GetDepth() <= 24) + flags = ILC_COLOR24; + else + flags = ILC_COLOR32; +#endif + bool mask = true; + if ( mask ) + flags |= ILC_MASK; - m_hImageList = (WXHIMAGELIST) ImageList_Create(image.GetWidth(), image.GetHeight(), flags, 1, 1); + m_hImageList = (WXHIMAGELIST) ImageList_Create(image.GetWidth(), image.GetHeight(), flags, 1, 1); - HICON hIcon = (HICON) image.GetHICON(); + HICON hIcon = (HICON) image.GetHICON(); - int index = ImageList_AddIcon((HIMAGELIST) m_hImageList, hIcon); - if ( index == -1 ) + int index = ImageList_AddIcon(GetHimageList(), hIcon); + if ( index == -1 ) { wxLogError(_("Couldn't add an image to the image list.")); } m_cursor = cursor; // Can only combine with drag image after calling BeginDrag. - m_hotspot = hotspot; return (index != -1) ; } - + // Create a drag image from a string and optional cursor -bool wxDragImage::Create(const wxString& str, const wxCursor& cursor, const wxPoint& hotspot) +bool wxDragImage::Create(const wxString& str, const wxCursor& cursor) { - wxFont font(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT)); + wxFont font(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT)); long w, h; wxScreenDC dc; dc.SetFont(font); dc.GetTextExtent(str, & w, & h); + dc.SetFont(wxNullFont); wxMemoryDC dc2; dc2.SetFont(font); - wxBitmap bitmap((int) w, (int) h); + wxBitmap bitmap((int) w+2, (int) h+2); dc2.SelectObject(bitmap); dc2.SetBackground(* wxWHITE_BRUSH); dc2.Clear(); + dc2.SetBackgroundMode(wxTRANSPARENT); + dc2.SetTextForeground(* wxLIGHT_GREY); dc2.DrawText(str, 0, 0); + dc2.DrawText(str, 1, 0); + dc2.DrawText(str, 2, 0); + dc2.DrawText(str, 1, 1); + dc2.DrawText(str, 2, 1); + dc2.DrawText(str, 1, 2); + dc2.DrawText(str, 2, 2); + dc2.SetTextForeground(* wxBLACK); + dc2.DrawText(str, 1, 1); dc2.SelectObject(wxNullBitmap); - return Create(bitmap, cursor, hotspot); + // Make the bitmap masked + wxImage image = bitmap.ConvertToImage(); + image.SetMaskColour(255, 255, 255); + return Create(wxBitmap(image), cursor); } +#if wxUSE_TREECTRL // Create a drag image for the given tree control item bool wxDragImage::Create(const wxTreeCtrl& treeCtrl, wxTreeItemId& id) { - if ( m_hImageList ) - ImageList_Destroy((HIMAGELIST) m_hImageList); - m_hImageList = (WXHIMAGELIST) TreeView_CreateDragImage((HWND) treeCtrl.GetHWND(), (HTREEITEM) (WXHTREEITEM) id); - return TRUE; + if ( m_hImageList ) + ImageList_Destroy(GetHimageList()); + m_hImageList = (WXHIMAGELIST) + TreeView_CreateDragImage(GetHwndOf(&treeCtrl), (HTREEITEM) id.m_pItem); + return m_hImageList != 0; } +#endif +#if wxUSE_LISTCTRL // Create a drag image for the given list control item bool wxDragImage::Create(const wxListCtrl& listCtrl, long id) { - if ( m_hImageList ) - ImageList_Destroy((HIMAGELIST) m_hImageList); + if ( m_hImageList ) + ImageList_Destroy(GetHimageList()); POINT pt; pt.x = 0; pt.y = 0; m_hImageList = (WXHIMAGELIST) ListView_CreateDragImage((HWND) listCtrl.GetHWND(), id, & pt); - return TRUE; + return true; } +#endif // Begin drag -bool wxDragImage::BeginDrag(const wxPoint& hotspot, wxWindow* WXUNUSED(window)) +bool wxDragImage::BeginDrag(const wxPoint& hotspot, wxWindow* window, bool fullScreen, wxRect* rect) { wxASSERT_MSG( (m_hImageList != 0), wxT("Image list must not be null in BeginDrag.")); + wxASSERT_MSG( (window != 0), wxT("Window must not be null in BeginDrag.")); - bool ret = (ImageList_BeginDrag((HIMAGELIST) m_hImageList, 0, hotspot.x, hotspot.y) != 0); + m_fullScreen = fullScreen; + if (rect) + m_boundingRect = * rect; - wxASSERT_MSG( (ret), wxT("BeginDrag failed.")); + bool ret = (ImageList_BeginDrag(GetHimageList(), 0, hotspot.x, hotspot.y) != 0); if (!ret) - return FALSE; + { + wxFAIL_MSG( _T("BeginDrag failed.") ); + + return false; + } if (m_cursor.Ok()) { +#if wxUSE_SIMPLER_DRAGIMAGE + m_oldCursor = window->GetCursor(); + window->SetCursor(m_cursor); +#else + if (!m_hCursorImageList) + { + int cxCursor = ::GetSystemMetrics(SM_CXCURSOR); + int cyCursor = ::GetSystemMetrics(SM_CYCURSOR); + + m_hCursorImageList = (WXHIMAGELIST) ImageList_Create(cxCursor, cyCursor, ILC_MASK, 1, 1); + } + + // See if we can find the cursor hotspot + wxPoint curHotSpot(hotspot); + + // Although it seems to produce the right position, when the hotspot goeos + // negative it has strange effects on the image. + // How do we stop the cursor jumping right and below of where it should be? +#if 0 + ICONINFO iconInfo; + if (::GetIconInfo((HICON) (HCURSOR) m_cursor.GetHCURSOR(), & iconInfo) != 0) + { + curHotSpot.x -= iconInfo.xHotspot; + curHotSpot.y -= iconInfo.yHotspot; + } +#endif + //wxString msg; + //msg.Printf("Hotspot = %d, %d", curHotSpot.x, curHotSpot.y); + //wxLogDebug(msg); + // First add the cursor to the image list - int cursorIndex = ImageList_AddIcon((HIMAGELIST) m_hImageList, (HICON) m_cursor.GetHCURSOR()); + HCURSOR hCursor = (HCURSOR) m_cursor.GetHCURSOR(); + int cursorIndex = ImageList_AddIcon((HIMAGELIST) m_hCursorImageList, (HICON) hCursor); wxASSERT_MSG( (cursorIndex != -1), wxT("ImageList_AddIcon failed in BeginDrag.")); if (cursorIndex != -1) { - ImageList_SetDragCursorImage((HIMAGELIST) m_hImageList, cursorIndex, m_hotspot.x, m_hotspot.y); + ImageList_SetDragCursorImage((HIMAGELIST) m_hCursorImageList, cursorIndex, curHotSpot.x, curHotSpot.y); } +#endif } - ::ShowCursor(FALSE); +#if !wxUSE_SIMPLER_DRAGIMAGE + if (m_cursor.Ok()) + ::ShowCursor(FALSE); +#endif + + m_window = window; + + ::SetCapture(GetHwndOf(window)); - return TRUE; + return true; } - + +// Begin drag. hotspot is the location of the drag position relative to the upper-left +// corner of the image. This is full screen only. fullScreenRect gives the +// position of the window on the screen, to restrict the drag to. +bool wxDragImage::BeginDrag(const wxPoint& hotspot, wxWindow* window, wxWindow* fullScreenRect) +{ + wxRect rect; + + int x = fullScreenRect->GetPosition().x; + int y = fullScreenRect->GetPosition().y; + + wxSize sz = fullScreenRect->GetSize(); + + if (fullScreenRect->GetParent() && !fullScreenRect->IsKindOf(CLASSINFO(wxFrame))) + fullScreenRect->GetParent()->ClientToScreen(& x, & y); + + rect.x = x; rect.y = y; + rect.width = sz.x; rect.height = sz.y; + + return BeginDrag(hotspot, window, true, & rect); +} + // End drag -bool wxDragImage::EndDrag(wxWindow* WXUNUSED(window)) +bool wxDragImage::EndDrag() { wxASSERT_MSG( (m_hImageList != 0), wxT("Image list must not be null in EndDrag.")); ImageList_EndDrag(); + if ( !::ReleaseCapture() ) + { + wxLogLastError(wxT("ReleaseCapture")); + } + +#if wxUSE_SIMPLER_DRAGIMAGE + if (m_cursor.Ok() && m_oldCursor.Ok()) + m_window->SetCursor(m_oldCursor); +#else ::ShowCursor(TRUE); +#endif - return TRUE; + m_window = (wxWindow*) NULL; + + return true; } - + // Move the image: call from OnMouseMove. Pt is in window client coordinates if window // is non-NULL, or in screen coordinates if NULL. -bool wxDragImage::Move(const wxPoint& pt, wxWindow* window) +bool wxDragImage::Move(const wxPoint& pt) { wxASSERT_MSG( (m_hImageList != 0), wxT("Image list must not be null in Move.")); - // TODO: what coordinates are these in: window, client, or screen? - bool ret = (ImageList_DragMove( pt.x, pt.y ) != 0); + // These are in window, not client coordinates. + // So need to convert to client coordinates. + wxPoint pt2(pt); + if (m_window && !m_fullScreen) + { + RECT rect; + rect.left = 0; rect.top = 0; + rect.right = 0; rect.bottom = 0; + DWORD style = ::GetWindowLong((HWND) m_window->GetHWND(), GWL_STYLE); +#ifdef __WIN32__ + DWORD exStyle = ::GetWindowLong((HWND) m_window->GetHWND(), GWL_EXSTYLE); + ::AdjustWindowRectEx(& rect, style, FALSE, exStyle); +#else + ::AdjustWindowRect(& rect, style, FALSE); +#endif + // Subtract the (negative) values, i.e. add a small increment + pt2.x -= rect.left; pt2.y -= rect.top; + } + else if (m_window && m_fullScreen) + { + pt2 = m_window->ClientToScreen(pt2); + } + + bool ret = (ImageList_DragMove( pt2.x, pt2.y ) != 0); - m_position = pt; + m_position = pt2; return ret; } -bool wxDragImage::Show(wxWindow* window) +bool wxDragImage::Show() { wxASSERT_MSG( (m_hImageList != 0), wxT("Image list must not be null in Show.")); HWND hWnd = 0; - if (window) - hWnd = (HWND) window->GetHWND(); + if (m_window && !m_fullScreen) + hWnd = (HWND) m_window->GetHWND(); bool ret = (ImageList_DragEnter( hWnd, m_position.x, m_position.y ) != 0); return ret; } -bool wxDragImage::Hide(wxWindow* window) +bool wxDragImage::Hide() { wxASSERT_MSG( (m_hImageList != 0), wxT("Image list must not be null in Hide.")); HWND hWnd = 0; - if (window) - hWnd = (HWND) window->GetHWND(); + if (m_window && !m_fullScreen) + hWnd = (HWND) m_window->GetHWND(); bool ret = (ImageList_DragLeave( hWnd ) != 0); @@ -253,3 +460,4 @@ bool wxDragImage::Hide(wxWindow* window) #endif // __WIN95__ +#endif // wxUSE_DRAGIMAGE