| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/x11/dcmemory.cpp |
| 3 | // Purpose: wxMemoryDC class |
| 4 | // Author: Julian Smart |
| 5 | // Modified by: |
| 6 | // Created: 01/02/97 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) Julian Smart |
| 9 | // Licence: wxWindows licence |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // for compilers that support precompilation, includes "wx.h". |
| 13 | #include "wx/wxprec.h" |
| 14 | |
| 15 | #include "wx/dcmemory.h" |
| 16 | |
| 17 | #ifndef WX_PRECOMP |
| 18 | #include "wx/utils.h" |
| 19 | #include "wx/settings.h" |
| 20 | #endif |
| 21 | |
| 22 | #include "wx/x11/private.h" |
| 23 | |
| 24 | IMPLEMENT_DYNAMIC_CLASS(wxMemoryDC,wxWindowDC) |
| 25 | |
| 26 | void wxMemoryDC::Init() |
| 27 | { |
| 28 | m_ok = false; |
| 29 | |
| 30 | m_display = (WXDisplay *) wxGlobalDisplay(); |
| 31 | |
| 32 | int screen = DefaultScreen( wxGlobalDisplay() ); |
| 33 | m_cmap = (WXColormap) DefaultColormap( wxGlobalDisplay(), screen ); |
| 34 | } |
| 35 | |
| 36 | wxMemoryDC::wxMemoryDC( wxDC *WXUNUSED(dc) ) |
| 37 | : wxWindowDC() |
| 38 | { |
| 39 | Init(); |
| 40 | } |
| 41 | |
| 42 | wxMemoryDC::~wxMemoryDC() |
| 43 | { |
| 44 | } |
| 45 | |
| 46 | void wxMemoryDC::DoSelect( const wxBitmap& bitmap ) |
| 47 | { |
| 48 | Destroy(); |
| 49 | |
| 50 | m_selected = bitmap; |
| 51 | if (m_selected.Ok()) |
| 52 | { |
| 53 | if (m_selected.GetPixmap()) |
| 54 | { |
| 55 | m_window = (WXWindow) m_selected.GetPixmap(); |
| 56 | } |
| 57 | else |
| 58 | { |
| 59 | m_window = m_selected.GetBitmap(); |
| 60 | } |
| 61 | |
| 62 | m_isMemDC = true; |
| 63 | |
| 64 | SetUpDC(); |
| 65 | } |
| 66 | else |
| 67 | { |
| 68 | m_ok = false; |
| 69 | m_window = NULL; |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | void wxMemoryDC::DoGetSize( int *width, int *height ) const |
| 74 | { |
| 75 | if (m_selected.Ok()) |
| 76 | { |
| 77 | if (width) (*width) = m_selected.GetWidth(); |
| 78 | if (height) (*height) = m_selected.GetHeight(); |
| 79 | } |
| 80 | else |
| 81 | { |
| 82 | if (width) (*width) = 0; |
| 83 | if (height) (*height) = 0; |
| 84 | } |
| 85 | } |