src/msw/imaglist.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        imaglist.cpp
   3 // Purpose:     wxImageList
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "imaglist.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20 #pragma hdrstop
  21 #endif
  22
  23 #if defined(__WIN95__)
  24
  25 #ifndef WX_PRECOMP
  26 #include <stdio.h>
  27 #include "wx/setup.h"
  28 #include "wx/window.h"
  29 #include "wx/dcclient.h"
  30 #endif
  31
  32 #include "wx/log.h"
  33 #include "wx/intl.h"
  34
  35 #include "wx/msw/imaglist.h"
  36 #include "wx/msw/private.h"
  37
  38 #if (defined(__WIN95__) && !defined(__GNUWIN32__)) || defined(__TWIN32__)
  39 #include <commctrl.h>
  40 #endif
  41
  42 #if !USE_SHARED_LIBRARY
  43 IMPLEMENT_DYNAMIC_CLASS(wxImageList, wxObject)
  44 #endif
  45
  46 wxImageList::wxImageList(void)
  47 {
  48     m_hImageList = 0;
  49 }
  50
  51 wxImageList::~wxImageList(void)
  52 {
  53         if ( m_hImageList )
  54                 ImageList_Destroy((HIMAGELIST) m_hImageList);
  55         m_hImageList = 0;
  56 }
  57
  58
  59 // Attributes
  60 ////////////////////////////////////////////////////////////////////////////
  61
  62 // Returns the number of images in the image list.
  63 int wxImageList::GetImageCount(void) const
  64 {
  65         return ImageList_GetImageCount((HIMAGELIST) m_hImageList);
  66 }
  67
  68 // Operations
  69 ////////////////////////////////////////////////////////////////////////////
  70
  71 // Creates an image list
  72 bool wxImageList::Create(int width, int height, bool mask, int initial)
  73 {
  74         UINT flags = 0;
  75         if ( mask )
  76                 flags |= ILC_MASK;
  77
  78         // Grow by 1, I guess this is reasonable behaviour most of the time
  79         m_hImageList = (WXHIMAGELIST) ImageList_Create(width, height, flags, initial, 1);
  80         return (m_hImageList != 0);
  81 }
  82
  83 // Adds a bitmap, and optionally a mask bitmap.
  84 // Note that wxImageList creates new bitmaps, so you may delete
  85 // 'bitmap' and 'mask'.
  86 int wxImageList::Add(const wxBitmap& bitmap, const wxBitmap& mask)
  87 {
  88         HBITMAP hBitmap1 = (HBITMAP) bitmap.GetHBITMAP();
  89         HBITMAP hBitmap2 = 0;
  90         if ( mask.Ok() )
  91             hBitmap2 = (HBITMAP) mask.GetHBITMAP();
  92
  93     int index = ImageList_Add((HIMAGELIST) GetHIMAGELIST(), hBitmap1, hBitmap2);
  94         if ( index == -1 )
  95     {
  96         wxLogError(_("Couldn't add an image to the image list."));
  97     }
  98
  99     return index;
 100 }
 101
 102 // Adds a bitmap, using the specified colour to create the mask bitmap
 103 // Note that wxImageList creates new bitmaps, so you may delete
 104 // 'bitmap'.
 105 int wxImageList::Add(const wxBitmap& bitmap, const wxColour& maskColour)
 106 {
 107 #ifdef __TWIN32__
 108         wxFAIL_MSG("ImageList_AddMasked not implemented in TWIN32");
 109         return -1;
 110 #else
 111         HBITMAP hBitmap1 = (HBITMAP) bitmap.GetHBITMAP();
 112         COLORREF colorRef = PALETTERGB(maskColour.Red(), maskColour.Green(), maskColour.Blue());
 113         return ImageList_AddMasked((HIMAGELIST) GetHIMAGELIST(), hBitmap1, colorRef);
 114 #endif
 115 }
 116
 117 // Adds a bitmap and mask from an icon.
 118 int wxImageList::Add(const wxIcon& icon)
 119 {
 120         HICON hIcon = (HICON) icon.GetHICON();
 121         return ImageList_AddIcon((HIMAGELIST) GetHIMAGELIST(), hIcon);
 122 }
 123
 124 // Replaces a bitmap, optionally passing a mask bitmap.
 125 // Note that wxImageList creates new bitmaps, so you may delete
 126 // 'bitmap' and 'mask'.
 127 bool wxImageList::Replace(int index, const wxBitmap& bitmap, const wxBitmap& mask)
 128 {
 129 #ifdef __TWIN32__
 130         wxFAIL_MSG("ImageList_Replace not implemented in TWIN32");
 131         return FALSE;
 132 #else
 133         HBITMAP hBitmap1 = (HBITMAP) bitmap.GetHBITMAP();
 134         HBITMAP hBitmap2 = 0;
 135         if ( mask.Ok() )
 136             hBitmap2 = (HBITMAP) mask.GetHBITMAP();
 137         return (ImageList_Replace((HIMAGELIST) GetHIMAGELIST(), index, hBitmap1, hBitmap2) != 0);
 138 #endif
 139 }
 140
 141 /* Not supported by Win95
 142 // Replacing a bitmap, using the specified colour to create the mask bitmap
 143 // Note that wxImageList creates new bitmaps, so you may delete
 144 // 'bitmap'.
 145 bool wxImageList::Replace(int index, const wxBitmap& bitmap, const wxColour& maskColour)
 146 {
 147         HBITMAP hBitmap1 = (HBITMAP) bitmap.GetHBITMAP();
 148         COLORREF colorRef = PALETTERGB(maskColour.Red(), maskColour.Green(), maskColour.Blue());
 149         return (bool) ImageList_ReplaceMasked((HIMAGELIST) GetHIMAGELIST(), index, hBitmap1, colorRef);
 150 }
 151 */
 152
 153 // Replaces a bitmap and mask from an icon.
 154 bool wxImageList::Replace(int index, const wxIcon& icon)
 155 {
 156         HICON hIcon = (HICON) icon.GetHICON();
 157         return (ImageList_ReplaceIcon((HIMAGELIST) GetHIMAGELIST(), index, hIcon) != 0);
 158 }
 159
 160 // Removes the image at the given index.
 161 bool wxImageList::Remove(int index)
 162 {
 163 #ifdef __TWIN32__
 164         wxFAIL_MSG("ImageList_Replace not implemented in TWIN32");
 165         return FALSE;
 166 #else
 167         return (ImageList_Remove((HIMAGELIST) GetHIMAGELIST(), index) != 0);
 168 #endif
 169 }
 170
 171 // Remove all images
 172 bool wxImageList::RemoveAll(void)
 173 {
 174         // TODO: Is this correct?
 175         while ( GetImageCount() > 0 )
 176         {
 177                 Remove(0);
 178         }
 179         return TRUE;
 180 }
 181
 182 // Draws the given image on a dc at the specified position.
 183 // If 'solidBackground' is TRUE, Draw sets the image list background
 184 // colour to the background colour of the wxDC, to speed up
 185 // drawing by eliminating masked drawing where possible.
 186 bool wxImageList::Draw(int index, wxDC& dc, int x, int y,
 187     int flags, bool solidBackground)
 188 {
 189 #ifdef __TWIN32__
 190         wxFAIL_MSG("ImageList_Replace not implemented in TWIN32");
 191         return FALSE;
 192 #else
 193         HDC hDC = (HDC) dc.GetHDC();
 194         if ( !hDC )
 195                 return FALSE;
 196
 197         if ( solidBackground )
 198         {
 199                 wxBrush *brush = & dc.GetBackground();
 200                 if ( brush && brush->Ok())
 201                 {
 202                         wxColour col(brush->GetColour());
 203                         ImageList_SetBkColor((HIMAGELIST) GetHIMAGELIST(),
 204                                         PALETTERGB(col.Red(), col.Green(), col.Blue()));
 205                 }
 206                 else
 207                         ImageList_SetBkColor((HIMAGELIST) GetHIMAGELIST(),
 208                                 CLR_NONE);
 209         }
 210         else
 211                 ImageList_SetBkColor((HIMAGELIST) GetHIMAGELIST(),
 212                                 CLR_NONE);
 213
 214     UINT style = 0;
 215         if ( flags & wxIMAGELIST_DRAW_NORMAL )
 216                 style |= ILD_NORMAL;
 217         if ( flags & wxIMAGELIST_DRAW_TRANSPARENT )
 218                 style |= ILD_TRANSPARENT;
 219         if ( flags & wxIMAGELIST_DRAW_SELECTED )
 220                 style |= ILD_SELECTED;
 221         if ( flags & wxIMAGELIST_DRAW_FOCUSED )
 222                 style |= ILD_FOCUS;
 223
 224         return (ImageList_Draw((HIMAGELIST) GetHIMAGELIST(), index, hDC,
 225                 x, y, style) != 0);
 226 #endif
 227 }
 228
 229 #endif
 230