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/msw/imaglist.h"
  33 #include "wx/msw/private.h"
  34
  35 #ifndef __GNUWIN32__
  36 #include <commctrl.h>
  37 #endif
  38
  39 #if !USE_SHARED_LIBRARY
  40 IMPLEMENT_DYNAMIC_CLASS(wxImageList, wxObject)
  41 #endif
  42
  43 wxImageList::wxImageList(void)
  44 {
  45     m_hImageList = 0;
  46 }
  47
  48 wxImageList::~wxImageList(void)
  49 {
  50         if ( m_hImageList )
  51                 ImageList_Destroy((HIMAGELIST) m_hImageList);
  52         m_hImageList = 0;
  53 }
  54
  55
  56 // Attributes
  57 ////////////////////////////////////////////////////////////////////////////
  58
  59 // Returns the number of images in the image list.
  60 int wxImageList::GetImageCount(void) const
  61 {
  62         return ImageList_GetImageCount((HIMAGELIST) m_hImageList);
  63 }
  64
  65 // Operations
  66 ////////////////////////////////////////////////////////////////////////////
  67
  68 // Creates an image list
  69 bool wxImageList::Create(int width, int height, bool mask, int initial)
  70 {
  71         UINT flags = 0;
  72         if ( mask )
  73                 flags |= ILC_MASK;
  74
  75         // Grow by 1, I guess this is reasonable behaviour most of the time
  76         m_hImageList = (WXHIMAGELIST) ImageList_Create(width, height, flags, initial, 1);
  77         return (m_hImageList != 0);
  78 }
  79
  80 // Adds a bitmap, and optionally a mask bitmap.
  81 // Note that wxImageList creates new bitmaps, so you may delete
  82 // 'bitmap' and 'mask'.
  83 int wxImageList::Add(const wxBitmap& bitmap, const wxBitmap& mask)
  84 {
  85         HBITMAP hBitmap1 = (HBITMAP) bitmap.GetHBITMAP();
  86         HBITMAP hBitmap2 = 0;
  87         if ( mask.Ok() )
  88             hBitmap2 = (HBITMAP) mask.GetHBITMAP();
  89         return ImageList_Add((HIMAGELIST) GetHIMAGELIST(), hBitmap1, hBitmap2);
  90 }
  91
  92 // Adds a bitmap, using the specified colour to create the mask bitmap
  93 // Note that wxImageList creates new bitmaps, so you may delete
  94 // 'bitmap'.
  95 int wxImageList::Add(const wxBitmap& bitmap, const wxColour& maskColour)
  96 {
  97         HBITMAP hBitmap1 = (HBITMAP) bitmap.GetHBITMAP();
  98         COLORREF colorRef = PALETTERGB(maskColour.Red(), maskColour.Green(), maskColour.Blue());
  99         return ImageList_AddMasked((HIMAGELIST) GetHIMAGELIST(), hBitmap1, colorRef);
 100 }
 101
 102 // Adds a bitmap and mask from an icon.
 103 int wxImageList::Add(const wxIcon& icon)
 104 {
 105         HICON hIcon = (HICON) icon.GetHICON();
 106         return ImageList_AddIcon((HIMAGELIST) GetHIMAGELIST(), hIcon);
 107 }
 108
 109 // Replaces a bitmap, optionally passing a mask bitmap.
 110 // Note that wxImageList creates new bitmaps, so you may delete
 111 // 'bitmap' and 'mask'.
 112 bool wxImageList::Replace(int index, const wxBitmap& bitmap, const wxBitmap& mask)
 113 {
 114         HBITMAP hBitmap1 = (HBITMAP) bitmap.GetHBITMAP();
 115         HBITMAP hBitmap2 = 0;
 116         if ( mask.Ok() )
 117             hBitmap2 = (HBITMAP) mask.GetHBITMAP();
 118         return (ImageList_Replace((HIMAGELIST) GetHIMAGELIST(), index, hBitmap1, hBitmap2) != 0);
 119 }
 120
 121 /* Not supported by Win95
 122 // Replacing a bitmap, using the specified colour to create the mask bitmap
 123 // Note that wxImageList creates new bitmaps, so you may delete
 124 // 'bitmap'.
 125 bool wxImageList::Replace(int index, const wxBitmap& bitmap, const wxColour& maskColour)
 126 {
 127         HBITMAP hBitmap1 = (HBITMAP) bitmap.GetHBITMAP();
 128         COLORREF colorRef = PALETTERGB(maskColour.Red(), maskColour.Green(), maskColour.Blue());
 129         return (bool) ImageList_ReplaceMasked((HIMAGELIST) GetHIMAGELIST(), index, hBitmap1, colorRef);
 130 }
 131 */
 132
 133 // Replaces a bitmap and mask from an icon.
 134 bool wxImageList::Replace(int index, const wxIcon& icon)
 135 {
 136         HICON hIcon = (HICON) icon.GetHICON();
 137         return (ImageList_ReplaceIcon((HIMAGELIST) GetHIMAGELIST(), index, hIcon) != 0);
 138 }
 139
 140 // Removes the image at the given index.
 141 bool wxImageList::Remove(int index)
 142 {
 143         return (ImageList_Remove((HIMAGELIST) GetHIMAGELIST(), index) != 0);
 144 }
 145
 146 // Remove all images
 147 bool wxImageList::RemoveAll(void)
 148 {
 149         // TODO: Is this correct?
 150         while ( GetImageCount() > 0 )
 151         {
 152                 Remove(0);
 153         }
 154         return TRUE;
 155 }
 156
 157 // Draws the given image on a dc at the specified position.
 158 // If 'solidBackground' is TRUE, Draw sets the image list background
 159 // colour to the background colour of the wxDC, to speed up
 160 // drawing by eliminating masked drawing where possible.
 161 bool wxImageList::Draw(int index, wxDC& dc, int x, int y,
 162     int flags, bool solidBackground)
 163 {
 164         HDC hDC = (HDC) dc.GetHDC();
 165         if ( !hDC )
 166                 return FALSE;
 167
 168         if ( solidBackground )
 169         {
 170                 wxBrush *brush = & dc.GetBackground();
 171                 if ( brush && brush->Ok())
 172                 {
 173                         wxColour col(brush->GetColour());
 174                         ImageList_SetBkColor((HIMAGELIST) GetHIMAGELIST(),
 175                                         PALETTERGB(col.Red(), col.Green(), col.Blue()));
 176                 }
 177                 else
 178                         ImageList_SetBkColor((HIMAGELIST) GetHIMAGELIST(),
 179                                 CLR_NONE);
 180         }
 181         else
 182                 ImageList_SetBkColor((HIMAGELIST) GetHIMAGELIST(),
 183                                 CLR_NONE);
 184
 185     UINT style = 0;
 186         if ( flags & wxIMAGELIST_DRAW_NORMAL )
 187                 style |= ILD_NORMAL;
 188         if ( flags & wxIMAGELIST_DRAW_TRANSPARENT )
 189                 style |= ILD_TRANSPARENT;
 190         if ( flags & wxIMAGELIST_DRAW_SELECTED )
 191                 style |= ILD_SELECTED;
 192         if ( flags & wxIMAGELIST_DRAW_FOCUSED )
 193                 style |= ILD_FOCUS;
 194
 195         return (ImageList_Draw((HIMAGELIST) GetHIMAGELIST(), index, hDC,
 196                 x, y, style) != 0);
 197 }
 198
 199 #endif
 200