reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1 | /* |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 2 | * Copyright 2006 The Android Open Source Project |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 3 | * |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 6 | */ |
| 7 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 8 | #ifndef SkWidget_DEFINED |
| 9 | #define SkWidget_DEFINED |
| 10 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 11 | #include "SkBitmap.h" |
| 12 | #include "SkDOM.h" |
| 13 | #include "SkPaint.h" |
| 14 | #include "SkString.h" |
| 15 | #include "SkTDArray.h" |
tfarina@chromium.org | 3fe1690 | 2012-10-16 17:30:07 +0000 | [diff] [blame] | 16 | #include "SkTextBox.h" |
| 17 | #include "SkView.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 18 | |
tfarina@chromium.org | 3fe1690 | 2012-10-16 17:30:07 +0000 | [diff] [blame] | 19 | class SkEvent; |
| 20 | class SkInterpolator; |
| 21 | class SkShader; |
| 22 | |
| 23 | //////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 24 | |
| 25 | class SkWidget : public SkView { |
| 26 | public: |
| 27 | SkWidget(uint32_t flags = 0) : SkView(flags | kFocusable_Mask | kEnabled_Mask) {} |
| 28 | |
| 29 | /** Call this to post the widget's event to its listeners */ |
| 30 | void postWidgetEvent(); |
| 31 | |
| 32 | static void Init(); |
| 33 | static void Term(); |
| 34 | protected: |
| 35 | // override to add slots to an event before posting |
| 36 | virtual void prepareWidgetEvent(SkEvent*); |
| 37 | virtual void onEnabledChange(); |
| 38 | |
| 39 | // <event ...> to initialize the event from XML |
| 40 | virtual void onInflate(const SkDOM& dom, const SkDOM::Node* node); |
| 41 | |
| 42 | private: |
| 43 | SkEvent fEvent; |
| 44 | typedef SkView INHERITED; |
| 45 | }; |
| 46 | |
tfarina@chromium.org | 3fe1690 | 2012-10-16 17:30:07 +0000 | [diff] [blame] | 47 | //////////////////////////////////////////////////////////////////////////////// |
| 48 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 49 | class SkHasLabelWidget : public SkWidget { |
| 50 | public: |
| 51 | SkHasLabelWidget(uint32_t flags = 0) : SkWidget(flags) {} |
| 52 | |
| 53 | size_t getLabel(SkString* label = NULL) const; |
| 54 | size_t getLabel(char lable[] = NULL) const; |
| 55 | void setLabel(const SkString&); |
| 56 | void setLabel(const char label[]); |
| 57 | void setLabel(const char label[], size_t len); |
| 58 | |
| 59 | protected: |
| 60 | // called when the label changes |
| 61 | virtual void onLabelChange(); |
| 62 | |
| 63 | // overrides |
| 64 | virtual void onInflate(const SkDOM& dom, const SkDOM::Node*); |
| 65 | |
| 66 | private: |
| 67 | SkString fLabel; |
| 68 | typedef SkWidget INHERITED; |
| 69 | }; |
| 70 | |
tfarina@chromium.org | 3fe1690 | 2012-10-16 17:30:07 +0000 | [diff] [blame] | 71 | //////////////////////////////////////////////////////////////////////////////// |
| 72 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 73 | class SkButtonWidget : public SkHasLabelWidget { |
| 74 | public: |
| 75 | SkButtonWidget(uint32_t flags = 0) : SkHasLabelWidget(flags), fState(kOff_State) {} |
| 76 | |
| 77 | enum State { |
| 78 | kOff_State, //!< XML: buttonState="off" |
| 79 | kOn_State, //!< XML: buttonState="on" |
| 80 | kUnknown_State //!< XML: buttonState="unknown" |
| 81 | }; |
| 82 | State getButtonState() const { return fState; } |
| 83 | void setButtonState(State); |
| 84 | |
| 85 | protected: |
| 86 | /** called when the label changes. default behavior is to inval the widget */ |
| 87 | virtual void onButtonStateChange(); |
| 88 | |
| 89 | // overrides |
| 90 | virtual void onInflate(const SkDOM& dom, const SkDOM::Node*); |
| 91 | |
| 92 | private: |
| 93 | State fState; |
| 94 | typedef SkHasLabelWidget INHERITED; |
| 95 | }; |
| 96 | |
tfarina@chromium.org | 3fe1690 | 2012-10-16 17:30:07 +0000 | [diff] [blame] | 97 | //////////////////////////////////////////////////////////////////////////////// |
| 98 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 99 | class SkPushButtonWidget : public SkButtonWidget { |
| 100 | public: |
| 101 | SkPushButtonWidget(uint32_t flags = 0) : SkButtonWidget(flags) {} |
| 102 | |
| 103 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 104 | bool onEvent(const SkEvent&) override; |
| 105 | void onDraw(SkCanvas*) override; |
| 106 | Click* onFindClickHandler(SkScalar x, SkScalar y, unsigned modi) override; |
| 107 | bool onClick(Click* click) override; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 108 | |
| 109 | private: |
| 110 | typedef SkButtonWidget INHERITED; |
| 111 | }; |
| 112 | |
tfarina@chromium.org | 3fe1690 | 2012-10-16 17:30:07 +0000 | [diff] [blame] | 113 | //////////////////////////////////////////////////////////////////////////////// |
| 114 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 115 | class SkCheckBoxWidget : public SkButtonWidget { |
| 116 | public: |
| 117 | SkCheckBoxWidget(uint32_t flags = 0); |
| 118 | |
| 119 | protected: |
| 120 | virtual bool onEvent(const SkEvent&); |
| 121 | virtual void onDraw(SkCanvas*); |
| 122 | virtual void onInflate(const SkDOM& dom, const SkDOM::Node*); |
| 123 | |
| 124 | private: |
| 125 | typedef SkButtonWidget INHERITED; |
| 126 | }; |
| 127 | |
tfarina@chromium.org | 3fe1690 | 2012-10-16 17:30:07 +0000 | [diff] [blame] | 128 | //////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 129 | |
| 130 | class SkStaticTextView : public SkView { |
| 131 | public: |
| 132 | SkStaticTextView(uint32_t flags = 0); |
| 133 | virtual ~SkStaticTextView(); |
| 134 | |
| 135 | enum Mode { |
| 136 | kFixedSize_Mode, |
| 137 | kAutoWidth_Mode, |
| 138 | kAutoHeight_Mode, |
| 139 | |
| 140 | kModeCount |
| 141 | }; |
| 142 | Mode getMode() const { return (Mode)fMode; } |
| 143 | void setMode(Mode); |
| 144 | |
| 145 | SkTextBox::SpacingAlign getSpacingAlign() const { return (SkTextBox::SpacingAlign)fSpacingAlign; } |
| 146 | void setSpacingAlign(SkTextBox::SpacingAlign); |
| 147 | |
| 148 | void getMargin(SkPoint* margin) const; |
| 149 | void setMargin(SkScalar dx, SkScalar dy); |
| 150 | |
| 151 | size_t getText(SkString* text = NULL) const; |
| 152 | size_t getText(char text[] = NULL) const; |
| 153 | void setText(const SkString&); |
| 154 | void setText(const char text[]); |
| 155 | void setText(const char text[], size_t len); |
| 156 | |
| 157 | void getPaint(SkPaint*) const; |
| 158 | void setPaint(const SkPaint&); |
| 159 | |
| 160 | protected: |
| 161 | // overrides |
| 162 | virtual void onDraw(SkCanvas*); |
| 163 | virtual void onInflate(const SkDOM& dom, const SkDOM::Node*); |
| 164 | |
| 165 | private: |
| 166 | SkPoint fMargin; |
| 167 | SkString fText; |
| 168 | SkPaint fPaint; |
| 169 | uint8_t fMode; |
| 170 | uint8_t fSpacingAlign; |
| 171 | |
| 172 | void computeSize(); |
| 173 | |
| 174 | typedef SkView INHERITED; |
| 175 | }; |
| 176 | |
tfarina@chromium.org | 3fe1690 | 2012-10-16 17:30:07 +0000 | [diff] [blame] | 177 | //////////////////////////////////////////////////////////////////////////////// |
| 178 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 179 | class SkBitmapView : public SkView { |
| 180 | public: |
| 181 | SkBitmapView(uint32_t flags = 0); |
| 182 | virtual ~SkBitmapView(); |
| 183 | |
| 184 | bool getBitmap(SkBitmap*) const; |
| 185 | void setBitmap(const SkBitmap*, bool viewOwnsPixels); |
| 186 | bool loadBitmapFromFile(const char path[]); |
| 187 | |
| 188 | protected: |
| 189 | virtual void onDraw(SkCanvas*); |
| 190 | virtual void onInflate(const SkDOM&, const SkDOM::Node*); |
| 191 | |
| 192 | private: |
| 193 | SkBitmap fBitmap; |
| 194 | typedef SkView INHERITED; |
| 195 | }; |
| 196 | |
tfarina@chromium.org | 3fe1690 | 2012-10-16 17:30:07 +0000 | [diff] [blame] | 197 | //////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 198 | |
| 199 | class SkHasLabelView : public SkView { |
| 200 | public: |
| 201 | void getLabel(SkString*) const; |
| 202 | void setLabel(const SkString&); |
| 203 | void setLabel(const char label[]); |
| 204 | |
| 205 | protected: |
| 206 | SkString fLabel; |
| 207 | |
| 208 | // called when the label changes |
| 209 | virtual void onLabelChange(); |
| 210 | |
| 211 | // overrides |
| 212 | virtual void onInflate(const SkDOM& dom, const SkDOM::Node*); |
| 213 | }; |
| 214 | |
tfarina@chromium.org | 3fe1690 | 2012-10-16 17:30:07 +0000 | [diff] [blame] | 215 | //////////////////////////////////////////////////////////////////////////////// |
| 216 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 217 | class SkPushButtonView : public SkHasLabelView { |
| 218 | public: |
| 219 | SkPushButtonView(uint32_t flags = 0); |
| 220 | |
| 221 | protected: |
| 222 | virtual void onDraw(SkCanvas*); |
| 223 | virtual void onInflate(const SkDOM& dom, const SkDOM::Node*); |
| 224 | }; |
| 225 | |
tfarina@chromium.org | 3fe1690 | 2012-10-16 17:30:07 +0000 | [diff] [blame] | 226 | //////////////////////////////////////////////////////////////////////////////// |
| 227 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 228 | class SkCheckBoxView : public SkHasLabelView { |
| 229 | public: |
| 230 | SkCheckBoxView(uint32_t flags = 0); |
| 231 | |
| 232 | enum State { |
| 233 | kOff_State, |
| 234 | kOn_State, |
| 235 | kMaybe_State |
| 236 | }; |
| 237 | State getState() const { return fState; } |
| 238 | void setState(State); |
| 239 | |
| 240 | protected: |
| 241 | virtual void onDraw(SkCanvas*); |
| 242 | virtual void onInflate(const SkDOM& dom, const SkDOM::Node*); |
| 243 | |
| 244 | private: |
| 245 | State fState; |
| 246 | }; |
| 247 | |
tfarina@chromium.org | 3fe1690 | 2012-10-16 17:30:07 +0000 | [diff] [blame] | 248 | //////////////////////////////////////////////////////////////////////////////// |
| 249 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 250 | class SkProgressView : public SkView { |
| 251 | public: |
| 252 | SkProgressView(uint32_t flags = 0); |
| 253 | virtual ~SkProgressView(); |
| 254 | |
| 255 | uint16_t getValue() const { return fValue; } |
| 256 | uint16_t getMax() const { return fMax; } |
| 257 | |
| 258 | void setMax(U16CPU max); |
| 259 | void setValue(U16CPU value); |
| 260 | |
| 261 | protected: |
| 262 | virtual void onDraw(SkCanvas*); |
| 263 | virtual void onInflate(const SkDOM& dom, const SkDOM::Node* node); |
| 264 | |
| 265 | private: |
| 266 | uint16_t fValue, fMax; |
| 267 | SkShader* fOnShader, *fOffShader; |
| 268 | SkInterpolator* fInterp; |
| 269 | bool fDoInterp; |
| 270 | |
| 271 | typedef SkView INHERITED; |
| 272 | }; |
| 273 | |
tfarina@chromium.org | 3fe1690 | 2012-10-16 17:30:07 +0000 | [diff] [blame] | 274 | //////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 275 | |
| 276 | class SkListSource : public SkEventSink { |
| 277 | public: |
| 278 | virtual int countRows() = 0; |
| 279 | virtual void getRow(int index, SkString* left, SkString* right) = 0; |
| 280 | virtual SkEvent* getEvent(int index); |
| 281 | |
| 282 | static SkListSource* CreateFromDir(const char path[], const char suffix[], |
| 283 | const char targetPrefix[]); |
| 284 | static SkListSource* CreateFromDOM(const SkDOM& dom, const SkDOM::Node* node); |
| 285 | }; |
| 286 | |
tfarina@chromium.org | 3fe1690 | 2012-10-16 17:30:07 +0000 | [diff] [blame] | 287 | //////////////////////////////////////////////////////////////////////////////// |
| 288 | |
| 289 | class SkListView : public SkView { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 290 | public: |
| 291 | SkListView(uint32_t flags = 0); |
| 292 | virtual ~SkListView(); |
| 293 | |
| 294 | SkScalar getRowHeight() const { return fRowHeight; } |
| 295 | void setRowHeight(SkScalar); |
| 296 | |
| 297 | /** Return the index of the selected row, or -1 if none |
| 298 | */ |
| 299 | int getSelection() const { return fCurrIndex; } |
| 300 | /** Set the index of the selected row, or -1 for none |
| 301 | */ |
| 302 | void setSelection(int); |
| 303 | |
| 304 | void moveSelectionUp(); |
| 305 | void moveSelectionDown(); |
| 306 | |
| 307 | enum Attr { |
| 308 | kBG_Attr, |
| 309 | kNormalText_Attr, |
| 310 | kHiliteText_Attr, |
| 311 | kHiliteCell_Attr, |
| 312 | kAttrCount |
| 313 | }; |
| 314 | SkPaint& paint(Attr); |
| 315 | |
| 316 | SkListSource* getListSource() const { return fSource; } |
| 317 | SkListSource* setListSource(SkListSource*); |
| 318 | |
| 319 | #if 0 |
| 320 | enum Action { |
| 321 | kSelectionChange_Action, |
| 322 | kSelectionPicked_Action, |
| 323 | kActionCount |
| 324 | }; |
| 325 | /** If event is not null, it is retained by the view, and a copy |
| 326 | of the event will be posted to its listeners when the specified |
| 327 | action occurs. If event is null, then no event will be posted for |
| 328 | the specified action. |
| 329 | */ |
| 330 | void setActionEvent(Action, SkEvent* event); |
| 331 | #endif |
| 332 | |
| 333 | protected: |
| 334 | virtual void onDraw(SkCanvas*); |
| 335 | virtual void onSizeChange(); |
| 336 | virtual bool onEvent(const SkEvent&); |
| 337 | virtual void onInflate(const SkDOM& dom, const SkDOM::Node* node); |
| 338 | |
| 339 | private: |
| 340 | SkPaint fPaint[kAttrCount]; |
| 341 | SkListSource* fSource; |
| 342 | SkScalar fRowHeight; |
| 343 | int fCurrIndex; // logical index |
| 344 | int fScrollIndex; // logical index of top-most visible row |
| 345 | int fVisibleRowCount; |
| 346 | SkString* fStrCache; |
| 347 | |
| 348 | void dirtyStrCache(); |
| 349 | void ensureStrCache(int visibleCount); |
| 350 | |
| 351 | int logicalToVisualIndex(int index) const { return index - fScrollIndex; } |
| 352 | void invalSelection(); |
| 353 | bool getRowRect(int index, SkRect*) const; |
| 354 | void ensureSelectionIsVisible(); |
| 355 | |
tfarina@chromium.org | 3fe1690 | 2012-10-16 17:30:07 +0000 | [diff] [blame] | 356 | typedef SkView INHERITED; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 357 | }; |
| 358 | |
tfarina@chromium.org | 3fe1690 | 2012-10-16 17:30:07 +0000 | [diff] [blame] | 359 | //////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 360 | |
tfarina@chromium.org | 3fe1690 | 2012-10-16 17:30:07 +0000 | [diff] [blame] | 361 | class SkGridView : public SkView { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 362 | public: |
| 363 | SkGridView(uint32_t flags = 0); |
| 364 | virtual ~SkGridView(); |
| 365 | |
| 366 | void getCellSize(SkPoint*) const; |
| 367 | void setCellSize(SkScalar x, SkScalar y); |
| 368 | |
| 369 | /** Return the index of the selected item, or -1 if none |
| 370 | */ |
| 371 | int getSelection() const { return fCurrIndex; } |
| 372 | /** Set the index of the selected row, or -1 for none |
| 373 | */ |
| 374 | void setSelection(int); |
| 375 | |
| 376 | void moveSelectionUp(); |
| 377 | void moveSelectionDown(); |
| 378 | |
| 379 | enum Attr { |
| 380 | kBG_Attr, |
| 381 | kHiliteCell_Attr, |
| 382 | kAttrCount |
| 383 | }; |
| 384 | SkPaint& paint(Attr); |
| 385 | |
| 386 | SkListSource* getListSource() const { return fSource; } |
| 387 | SkListSource* setListSource(SkListSource*); |
| 388 | |
| 389 | protected: |
| 390 | virtual void onDraw(SkCanvas*); |
| 391 | virtual void onSizeChange(); |
| 392 | virtual bool onEvent(const SkEvent&); |
| 393 | virtual void onInflate(const SkDOM& dom, const SkDOM::Node* node); |
| 394 | |
| 395 | private: |
| 396 | SkView* fScrollBar; |
| 397 | SkPaint fPaint[kAttrCount]; |
| 398 | SkListSource* fSource; |
| 399 | int fCurrIndex; // logical index |
| 400 | |
| 401 | SkPoint fCellSize; |
| 402 | SkIPoint fVisibleCount; |
| 403 | |
| 404 | int logicalToVisualIndex(int index) const { return index; } |
| 405 | void invalSelection(); |
| 406 | bool getCellRect(int index, SkRect*) const; |
| 407 | void ensureSelectionIsVisible(); |
| 408 | |
tfarina@chromium.org | 3fe1690 | 2012-10-16 17:30:07 +0000 | [diff] [blame] | 409 | typedef SkView INHERITED; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 410 | }; |
| 411 | |
| 412 | #endif |