1 // Copyright 2014 PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7 #ifndef _FWL_SCROLLBAR_H 8 #define _FWL_SCROLLBAR_H 9 class CFWL_WidgetImpProperties; 10 class IFWL_Widget; 11 class IFWL_ScrollBarDP; 12 class IFWL_ScrollBar; 13 #define FWL_CLASS_ScrollBar L"FWL_SCROLLBAR" 14 #define FWL_CLASSHASH_ScrollBar 2826584844 15 #define FWL_STYLEEXT_SCB_Horz (0L << 0) 16 #define FWL_STYLEEXT_SCB_Vert (1L << 0) 17 #define FWL_PART_SCB_Border 1 18 #define FWL_PART_SCB_Edge 2 19 #define FWL_PART_SCB_Background 3 20 #define FWL_PART_SCB_ForeArrow 4 21 #define FWL_PART_SCB_BackArrow 5 22 #define FWL_PART_SCB_Thumb 6 23 #define FWL_PART_SCB_LowerTrack 7 24 #define FWL_PART_SCB_UpperTrack 8 25 #define FWL_PARTSTATE_SCB_Normal (0L << 0) 26 #define FWL_PARTSTATE_SCB_Hovered (1L << 0) 27 #define FWL_PARTSTATE_SCB_Pressed (2L << 0) 28 #define FWL_PARTSTATE_SCB_Disabled (3L << 0) 29 #define FWL_WGTHITTEST_SCB_ForeArrow FWL_WGTHITTEST_MAX + 1 30 #define FWL_WGTHITTEST_SCB_BackArrow FWL_WGTHITTEST_MAX + 2 31 #define FWL_WGTHITTEST_SCB_LowerTrack FWL_WGTHITTEST_MAX + 3 32 #define FWL_WGTHITTEST_SCB_UpperTrack FWL_WGTHITTEST_MAX + 4 33 #define FWL_WGTHITTEST_SCB_Thumb FWL_WGTHITTEST_MAX + 5 34 #define FWL_CAPACITY_SCB_Size FWL_WGTCAPACITY_MAX 35 enum FWL_SCBCODE { 36 FWL_SCBCODE_None = 1, 37 FWL_SCBCODE_Min, 38 FWL_SCBCODE_Max, 39 FWL_SCBCODE_PageBackward, 40 FWL_SCBCODE_PageForward, 41 FWL_SCBCODE_StepBackward, 42 FWL_SCBCODE_StepForward, 43 FWL_SCBCODE_Pos, 44 FWL_SCBCODE_TrackPos, 45 FWL_SCBCODE_EndScroll, 46 }; 47 class IFWL_ScrollBarDP : public IFWL_DataProvider {}; 48 class IFWL_ScrollBar : public IFWL_Widget { 49 public: 50 static IFWL_ScrollBar* Create(const CFWL_WidgetImpProperties& properties, 51 IFWL_Widget* pOuter); 52 53 FX_BOOL IsVertical(); 54 FWL_ERR GetRange(FX_FLOAT& fMin, FX_FLOAT& fMax); 55 FWL_ERR SetRange(FX_FLOAT fMin, FX_FLOAT fMax); 56 FX_FLOAT GetPageSize(); 57 FWL_ERR SetPageSize(FX_FLOAT fPageSize); 58 FX_FLOAT GetStepSize(); 59 FWL_ERR SetStepSize(FX_FLOAT fStepSize); 60 FX_FLOAT GetPos(); 61 FWL_ERR SetPos(FX_FLOAT fPos); 62 FX_FLOAT GetTrackPos(); 63 FWL_ERR SetTrackPos(FX_FLOAT fTrackPos); 64 FX_BOOL DoScroll(FX_DWORD dwCode, FX_FLOAT fPos = 0.0f); 65 66 protected: 67 IFWL_ScrollBar(); 68 }; 69 #endif 70