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 #ifndef __GNUWIN32__
  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         HBITMAP hBitmap1 = (HBITMAP) bitmap.GetHBITMAP();
 108         COLORREF colorRef = PALETTERGB(maskColour.Red(), maskColour.Green(), maskColour.Blue());
 109         return ImageList_AddMasked((HIMAGELIST) GetHIMAGELIST(), hBitmap1, colorRef);
 110 }
 111
 112 // Adds a bitmap and mask from an icon.
 113 int wxImageList::Add(const wxIcon& icon)
 114 {
 115         HICON hIcon = (HICON) icon.GetHICON();
 116         return ImageList_AddIcon((HIMAGELIST) GetHIMAGELIST(), hIcon);
 117 }
 118
 119 // Replaces a bitmap, optionally passing a mask bitmap.
 120 // Note that wxImageList creates new bitmaps, so you may delete
 121 // 'bitmap' and 'mask'.
 122 bool wxImageList::Replace(int index, const wxBitmap& bitmap, const wxBitmap& mask)
 123 {
 124         HBITMAP hBitmap1 = (HBITMAP) bitmap.GetHBITMAP();
 125         HBITMAP hBitmap2 = 0;
 126         if ( mask.Ok() )
 127             hBitmap2 = (HBITMAP) mask.GetHBITMAP();
 128         return (ImageList_Replace((HIMAGELIST) GetHIMAGELIST(), index, hBitmap1, hBitmap2) != 0);
 129 }
 130
 131 /* Not supported by Win95
 132 // Replacing a bitmap, using the specified colour to create the mask bitmap
 133 // Note that wxImageList creates new bitmaps, so you may delete
 134 // 'bitmap'.
 135 bool wxImageList::Replace(int index, const wxBitmap& bitmap, const wxColour& maskColour)
 136 {
 137         HBITMAP hBitmap1 = (HBITMAP) bitmap.GetHBITMAP();
 138         COLORREF colorRef = PALETTERGB(maskColour.Red(), maskColour.Green(), maskColour.Blue());
 139         return (bool) ImageList_ReplaceMasked((HIMAGELIST) GetHIMAGELIST(), index, hBitmap1, colorRef);
 140 }
 141 */
 142
 143 // Replaces a bitmap and mask from an icon.
 144 bool wxImageList::Replace(int index, const wxIcon& icon)
 145 {
 146         HICON hIcon = (HICON) icon.GetHICON();
 147         return (ImageList_ReplaceIcon((HIMAGELIST) GetHIMAGELIST(), index, hIcon) != 0);
 148 }
 149
 150 // Removes the image at the given index.
 151 bool wxImageList::Remove(int index)
 152 {
 153         return (ImageList_Remove((HIMAGELIST) GetHIMAGELIST(), index) != 0);
 154 }
 155
 156 // Remove all images
 157 bool wxImageList::RemoveAll(void)
 158 {
 159         // TODO: Is this correct?
 160         while ( GetImageCount() > 0 )
 161         {
 162                 Remove(0);
 163         }
 164         return TRUE;
 165 }
 166
 167 // Draws the given image on a dc at the specified position.
 168 // If 'solidBackground' is TRUE, Draw sets the image list background
 169 // colour to the background colour of the wxDC, to speed up
 170 // drawing by eliminating masked drawing where possible.
 171 bool wxImageList::Draw(int index, wxDC& dc, int x, int y,
 172     int flags, bool solidBackground)
 173 {
 174         HDC hDC = (HDC) dc.GetHDC();
 175         if ( !hDC )
 176                 return FALSE;
 177
 178         if ( solidBackground )
 179         {
 180                 wxBrush *brush = & dc.GetBackground();
 181                 if ( brush && brush->Ok())
 182                 {
 183                         wxColour col(brush->GetColour());
 184                         ImageList_SetBkColor((HIMAGELIST) GetHIMAGELIST(),
 185                                         PALETTERGB(col.Red(), col.Green(), col.Blue()));
 186                 }
 187                 else
 188                         ImageList_SetBkColor((HIMAGELIST) GetHIMAGELIST(),
 189                                 CLR_NONE);
 190         }
 191         else
 192                 ImageList_SetBkColor((HIMAGELIST) GetHIMAGELIST(),
 193                                 CLR_NONE);
 194
 195     UINT style = 0;
 196         if ( flags & wxIMAGELIST_DRAW_NORMAL )
 197                 style |= ILD_NORMAL;
 198         if ( flags & wxIMAGELIST_DRAW_TRANSPARENT )
 199                 style |= ILD_TRANSPARENT;
 200         if ( flags & wxIMAGELIST_DRAW_SELECTED )
 201                 style |= ILD_SELECTED;
 202         if ( flags & wxIMAGELIST_DRAW_FOCUSED )
 203                 style |= ILD_FOCUS;
 204
 205         return (ImageList_Draw((HIMAGELIST) GetHIMAGELIST(), index, hDC,
 206                 x, y, style) != 0);
 207 }
 208
 209 #endif
 210