1 /* 2 Open Tracker License 3 4 Terms and Conditions 5 6 Copyright (c) 1991-2000, Be Incorporated. All rights reserved. 7 8 Permission is hereby granted, free of charge, to any person obtaining a copy of 9 this software and associated documentation files (the "Software"), to deal in 10 the Software without restriction, including without limitation the rights to 11 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 12 of the Software, and to permit persons to whom the Software is furnished to do 13 so, subject to the following conditions: 14 15 The above copyright notice and this permission notice applies to all licensees 16 and shall be included in all copies or substantial portions of the Software. 17 18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF TITLE, MERCHANTABILITY, 20 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 21 BE INCORPORATED BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 22 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF, OR IN CONNECTION 23 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24 25 Except as contained in this notice, the name of Be Incorporated shall not be 26 used in advertising or otherwise to promote the sale, use or other dealings in 27 this Software without prior written authorization from Be Incorporated. 28 29 Tracker(TM), Be(R), BeOS(R), and BeIA(TM) are trademarks or registered trademarks 30 of Be Incorporated in the United States and other countries. Other brand product 31 names are registered trademarks or trademarks of their respective holders. 32 All rights reserved. 33 */ 34 #ifndef _TITLE_VIEW_H 35 #define _TITLE_VIEW_H 36 37 38 #include <Cursor.h> 39 #include <DataIO.h> 40 #include <ObjectList.h> 41 #include <View.h> 42 43 44 namespace BPrivate { 45 46 47 class BPoseView; 48 class BColumn; 49 class BColumnTitle; 50 class ColumnTrackState; 51 class OffscreenBitmap; 52 53 const int32 kTitleViewHeight = 16; 54 const int32 kEdgeSize = 6; 55 const int32 kTitleColumnLeftExtraMargin = 11; 56 const int32 kTitleColumnRightExtraMargin = 5; 57 const int32 kTitleColumnExtraMargin = kTitleColumnLeftExtraMargin 58 + kTitleColumnRightExtraMargin; 59 const int32 kMinColumnWidth = 20; 60 const int32 kRemoveTitleMargin = 10; 61 const int32 kColumnStart = 40; 62 63 64 class BTitleView : public BView { 65 public: 66 BTitleView(BRect, BPoseView*); 67 virtual ~BTitleView(); 68 69 virtual void MouseDown(BPoint where); 70 virtual void MouseUp(BPoint where); 71 virtual void Draw(BRect updateRect); 72 73 void Draw(BRect, bool useOffscreen = false, 74 bool updateOnly = true, 75 const BColumnTitle* pressedColumn = 0, 76 void (*trackRectBlitter)(BView*, BRect) = 0, 77 BRect passThru = BRect(0, 0, 0, 0)); 78 79 void AddTitle(BColumn*, const BColumn* after = 0); 80 void RemoveTitle(BColumn*); 81 void Reset(); 82 83 BPoseView* PoseView() const; 84 85 protected: 86 void MouseMoved(BPoint, uint32, const BMessage*); 87 88 private: 89 BColumnTitle* FindColumnTitle(BPoint) const; 90 BColumnTitle* InColumnResizeArea(BPoint) const; 91 BColumnTitle* FindColumnTitle(const BColumn*) const; 92 93 BPoseView* fPoseView; 94 BObjectList<BColumnTitle> fTitleList; 95 BCursor fHorizontalResizeCursor; 96 97 BColumnTitle* fPreviouslyClickedColumnTitle; 98 bigtime_t fPreviousLeftClickTime; 99 ColumnTrackState* fTrackingState; 100 101 static OffscreenBitmap* sOffscreen; 102 103 typedef BView _inherited; 104 105 friend class ColumnTrackState; 106 friend class ColumnDragState; 107 }; 108 109 110 class BColumnTitle { 111 public: 112 BColumnTitle(BTitleView*, BColumn*); 113 virtual ~BColumnTitle() {} 114 115 virtual void Draw(BView*, bool pressed = false); 116 117 BColumn* Column() const; 118 BRect Bounds() const; 119 120 bool InColumnResizeArea(BPoint) const; 121 122 private: 123 BColumn* fColumn; 124 BTitleView* fParent; 125 126 friend class ColumnResizeState; 127 }; 128 129 130 // Utility classes to handle dragging state 131 class ColumnTrackState { 132 public: 133 ColumnTrackState(BTitleView* titleView, BColumnTitle* columnTitle, 134 BPoint where, bigtime_t pastClickTime); 135 virtual ~ColumnTrackState() {} 136 137 void MouseMoved(BPoint where, uint32 buttons); 138 void MouseUp(BPoint where); 139 140 protected: 141 virtual void Moved(BPoint where, uint32 buttons) = 0; 142 virtual void Clicked(BPoint where) = 0; 143 virtual void Done(BPoint where) = 0; 144 virtual bool ValueChanged(BPoint where) = 0; 145 146 BTitleView* fTitleView; 147 BColumnTitle* fTitle; 148 BPoint fFirstClickPoint; 149 bigtime_t fPastClickTime; 150 bool fHasMoved; 151 }; 152 153 154 class ColumnResizeState : public ColumnTrackState { 155 public: 156 ColumnResizeState(BTitleView* titleView, BColumnTitle* columnTitle, 157 BPoint where, bigtime_t pastClickTime); 158 159 protected: 160 virtual void Moved(BPoint where, uint32 buttons); 161 virtual void Done(BPoint where); 162 virtual void Clicked(BPoint where); 163 virtual bool ValueChanged(BPoint); 164 165 void DrawLine(); 166 void UndrawLine(); 167 168 private: 169 float fLastLineDrawPos; 170 float fInitialTrackOffset; 171 172 typedef ColumnTrackState _inherited; 173 }; 174 175 176 class ColumnDragState : public ColumnTrackState { 177 public: 178 ColumnDragState(BTitleView* titleView, BColumnTitle* columnTitle, 179 BPoint where, bigtime_t pastClickTime); 180 181 protected: 182 virtual void Moved(BPoint where, uint32 buttons); 183 virtual void Done(BPoint where); 184 virtual void Clicked(BPoint where); 185 virtual bool ValueChanged(BPoint); 186 187 void DrawOutline(float); 188 void UndrawOutline(); 189 void DrawPressNoOutline(); 190 191 private: 192 float fInitialMouseTrackOffset; 193 bool fTrackingRemovedColumn; 194 BMallocIO fColumnArchive; 195 196 typedef ColumnTrackState _inherited; 197 }; 198 199 200 inline BColumn* 201 BColumnTitle::Column() const 202 { 203 return fColumn; 204 } 205 206 207 inline BPoseView* 208 BTitleView::PoseView() const 209 { 210 return fPoseView; 211 } 212 213 214 } // namespace BPrivate 215 216 using namespace BPrivate; 217 218 219 #endif // _TITLE_VIEW_H 220