1 /* 2 * Copyright (C) 2009 Kevin Ollivier All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef scrollbar_render_h 27 #define scrollbar_render_h 28 29 #include <wx/defs.h> 30 #include <wx/dc.h> 31 #include <wx/renderer.h> 32 33 enum wxScrollbarPart { 34 wxSCROLLPART_NONE = 0, 35 wxSCROLLPART_BACKBTNSTART = 1, 36 wxSCROLLPART_FWDBTNSTART = 1 << 1, 37 wxSCROLLPART_BACKTRACK = 1 << 2, 38 wxSCROLLPART_THUMB = 1 << 3, 39 wxSCROLLPART_FWDTRACK = 1 << 4, 40 wxSCROLLPART_BACKBTNEND = 1 << 5, 41 wxSCROLLPART_FWDBTNEND = 1 << 6, 42 wxSCROLLPART_SCROLLBARBG = 1 << 7, 43 wxSCROLLPART_TRACKBG = 1 << 8, 44 wxSCROLLPART_ALL = 0xffffffff, 45 }; 46 47 void wxRenderer_DrawScrollbar(wxWindow* window, wxDC& dc, 48 const wxRect& rect, 49 wxOrientation orientation, 50 int current, wxScrollbarPart focusPart, wxScrollbarPart hoverPart, 51 int max, int step, int flags=0); 52 53 inline void calcThumbStartAndLength(int physicalLength, int max, int current, 54 int step, int *thumbStart, int *thumbLength) 55 { 56 float proportion = ((float)physicalLength - 8)/ (max + step); 57 float thumbSize = proportion * (float)physicalLength; 58 if (thumbSize < 20) 59 thumbSize = 20; 60 61 float thumbPos = ((float)current / (float)max) * ((float)physicalLength - thumbSize); 62 if (thumbStart) 63 *thumbStart = thumbPos; 64 65 if (thumbLength) 66 *thumbLength = thumbSize; 67 } 68 #endif 69
