1 ///////////////////////////////////////////////////////////////////////////////
2 // Name: src/os2/ownerdrw.cpp
3 // Purpose: implementation of wxOwnerDrawn class
4 // Author: David Webster
5 // Modified by: Marcin Malich
6 // Created: 10/12/99
7 // Copyright: (c) David Webster
8 // Licence: wxWindows licence
9 ///////////////////////////////////////////////////////////////////////////////
10
11 // For compilers that support precompilation, includes "wx.h".
12 #include "wx/wxprec.h"
13
14 #if wxUSE_OWNER_DRAWN
15
16 #include "wx/ownerdrw.h"
17 #include "wx/os2/private.h"
18 #include "wx/os2/dcclient.h"
19
20 // ----------------------------------------------------------------------------
21 // constants for base class
22 // ----------------------------------------------------------------------------
23
24 int wxOwnerDrawnBase::ms_defaultMargin = 3;
25
26 // ============================================================================
27 // implementation of wxOwnerDrawn class
28 // ============================================================================
29
30 // draw the item
OnDrawItem(wxDC & rDC,const wxRect & rRect,wxODAction eAction,wxODStatus eStatus)31 bool wxOwnerDrawn::OnDrawItem( wxDC& rDC,
32 const wxRect& rRect,
33 wxODAction eAction,
34 wxODStatus eStatus )
35 {
36
37 //
38 // Select the font and draw the text
39 // ---------------------------------
40 //
41
42 CHARBUNDLE vCbnd;
43 wxPMDCImpl *impl = (wxPMDCImpl*) rDC.GetImpl();
44 HPS hPS= impl->GetHPS();
45 wxFont vFont;
46 wxColour vColBack;
47 wxColour vColText;
48 COLORREF vRef;
49 RECTL vRect = {rRect.x + 4, rRect.y + 1, rRect.x + (rRect.width - 2), rRect.y + rRect.height};
50
51 memset(&vCbnd, 0, sizeof(CHARBUNDLE));
52
53 GetFontToUse(vFont);
54 GetColourToUse(eStatus, vColText, vColBack);
55
56 rDC.SetFont(vFont);
57 rDC.SetTextBackground(vColBack);
58 rDC.SetTextForeground(vColText);
59 rDC.SetBackgroundMode(wxTRANSPARENT);
60
61 vCbnd.lColor = vColText.GetPixel();
62 vCbnd.lBackColor = vColBack.GetPixel();
63 ::GpiSetAttrs( hPS
64 ,PRIM_CHAR
65 ,CBB_BACK_COLOR | CBB_COLOR
66 ,0
67 ,&vCbnd
68 );
69 ::GpiSetBackMix( hPS
70 ,BM_LEAVEALONE
71 );
72
73 //
74 // Paint the background
75 //
76 ::WinFillRect(hPS, &vRect, vColBack.GetPixel());
77
78 //
79 // Determine where to draw and leave space for a check-mark.
80 //
81 int nX = rRect.x + GetMarginWidth();
82
83 //
84 // Unfortunately, unlike Win32, PM has no owner drawn specific text
85 // drawing methods like ::DrawState that can cleanly handle accel
86 // mnemonics and deal, automatically, with various states, so we have
87 // to handle them ourselves. Notice Win32 can't handle \t in ownerdrawn
88 // strings either. We cannot handle mnemonics either. We display
89 // them, though, in the hope we can figure them out some day.
90 //
91
92 //
93 // Display main text
94 //
95 wxString sFullString = GetItemLabel(); // need to save the original text
96 int nIndex;
97 size_t nWidth;
98 size_t nCharWidth;
99 size_t nHeight;
100 bool bFoundMnemonic = false;
101
102 //
103 // Deal with the mnemonic character
104 //
105 nIndex = sFullString.Find(wxT("~"));
106 if (nIndex != -1)
107 {
108 wxString sTmp = sFullString;
109
110 bFoundMnemonic = true;
111 sTmp.Remove(nIndex);
112 rDC.GetTextExtent( sTmp
113 ,(wxCoord *)&nWidth
114 ,(wxCoord *)&nHeight
115 );
116 sTmp = sFullString[(size_t)(nIndex + 1)];
117 rDC.GetTextExtent( sTmp
118 ,(wxCoord *)&nCharWidth
119 ,(wxCoord *)&nHeight
120 );
121 sFullString.Replace(sTgt.c_str(), wxEmptyString, true);
122 }
123
124 //
125 // Draw the main item text sans the accel text
126 //
127 POINTL vPntStart = {nX, rRect.y + 4};
128 ::GpiCharStringAt( impl->GetHPS()
129 ,&vPntStart
130 ,sFullString.length()
131 ,sFullString.char_str()
132 );
133 if (bFoundMnemonic)
134 {
135 //
136 // Underline the mnemonic -- still won't work, but at least it "looks" right
137 //
138 wxPen vPen;
139 POINTL vPntEnd = {nX + nWidth + nCharWidth - 3, rRect.y + 2}; //CharWidth is bit wide
140
141 vPntStart.x = nX + nWidth - 1;
142 vPntStart.y = rRect.y + 2; // Make it look pretty!
143 vPen = wxPen(vColText, 1, wxSOLID); // Assuming we are always black
144 rDC.SetPen(vPen);
145 ::GpiMove(hPS, &vPntStart);
146 ::GpiLine(hPS, &vPntEnd);
147 }
148
149 return true;
150 } // end of wxOwnerDrawn::OnDrawItem
151
152 #endif //wxUSE_OWNER_DRAWN
153