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10 * Nokia Corporation - initial contribution. |
10 * Nokia Corporation - initial contribution. |
11 * |
11 * |
12 * Contributors: |
12 * Contributors: |
13 * |
13 * |
14 * Description: CMmListBox |
14 * Description: CMmListBox |
15 * Version : %version: MM_22.1.14 % << Don't touch! Updated by Synergy at check-out. |
15 * Version : %version: MM_22.1.16 % << Don't touch! Updated by Synergy at check-out. |
16 * |
16 * |
17 */ |
17 */ |
18 |
18 |
19 |
19 |
20 #ifndef C_MMLISTBOX_H |
20 #ifndef C_MMLISTBOX_H |
273 /** |
273 /** |
274 * Disables/enables child component (scrollbar) drawing. |
274 * Disables/enables child component (scrollbar) drawing. |
275 */ |
275 */ |
276 void SetDisableChildComponentDrawing( TBool aDisable ); |
276 void SetDisableChildComponentDrawing( TBool aDisable ); |
277 |
277 |
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278 /** |
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279 * Handles scrolling event. |
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280 * |
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281 * @since S60 v3.0 |
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282 * @param aScrollBar Scrollbar being scrolled. |
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283 * @param aEventType Type of scrollbar event. |
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284 */ |
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285 void HandleScrollEventL( CEikScrollBar* aScrollBar, |
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286 TEikScrollEvent aEventType ); |
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287 |
278 private: |
288 private: |
279 /** |
289 /** |
280 * Default constructor. |
290 * Default constructor. |
281 * |
291 * |
282 * @since S60 v3.0 |
292 * @since S60 v3.0 |
361 * to the right in mirrored layout and does not cover the scrollbar |
371 * to the right in mirrored layout and does not cover the scrollbar |
362 * area. In normal (non-mirrored) mode this method does nothing. |
372 * area. In normal (non-mirrored) mode this method does nothing. |
363 */ |
373 */ |
364 void RedrawScrollbarBackground() const; |
374 void RedrawScrollbarBackground() const; |
365 |
375 |
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376 /** |
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377 * Does actual handling of scroll events. |
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378 * |
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379 * @param aScrollBar Scrollbar being scrolled. |
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380 * @param aEventType Type of scrollbar event. |
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381 */ |
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382 void ProcessScrollEventL( CEikScrollBar* aScrollBar, |
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383 TEikScrollEvent aEventType ); |
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384 |
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385 /** |
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386 * Handles periodic events from @c iRedrawTimer. |
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387 * Such events are generated at equal time intervals while |
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388 * the view is being scrolled using the scrollbar. |
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389 * This function typically calls @c ProcessScrollEventL, |
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390 * which actually scrolls the view and causes a redraw. |
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391 */ |
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392 void HandleRedrawTimerEvent(); |
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393 |
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394 private: |
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395 /** |
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396 * Callback function for @c iRedrawTimer. |
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397 * It simply calls @c HandleRedrawTimerEvent and returns 0. |
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398 * |
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399 * @param aPtr A pointer to CMmListBox object. |
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400 * @return 0 (always). |
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401 */ |
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402 static TInt RedrawTimerCallback( TAny* aPtr ); |
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403 |
366 private: // Data |
404 private: // Data |
367 /** |
405 /** |
368 * Item drawer. |
406 * Item drawer. |
369 */ |
407 */ |
370 CMmListBoxItemDrawer* iMmDrawer; |
408 CMmListBoxItemDrawer* iMmDrawer; |
382 /** |
420 /** |
383 * Blocks scrollbar drawing. When this flag is set scrollbars components |
421 * Blocks scrollbar drawing. When this flag is set scrollbars components |
384 * are blocked in the CountComponentControls() method; |
422 * are blocked in the CountComponentControls() method; |
385 */ |
423 */ |
386 TBool iDisableChildComponentDrawing; |
424 TBool iDisableChildComponentDrawing; |
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425 |
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426 /** |
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427 * This member is only used in edit mode to store the position of the pointer |
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428 * during EButton1Down event. |
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429 */ |
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430 TPoint iButton1DownPos; |
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431 |
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432 /** |
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433 * ETrue if the view is being scrolled with the scrollbar. |
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434 */ |
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435 TBool iScrollbarThumbIsBeingDragged; |
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436 |
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437 /** |
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438 * Stores the number of scrollbar events that were ignored. |
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439 * It is only used while scrolling the view using scrollbar, |
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440 * in such situation the scroll events that this object receives |
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441 * are ignored, and actual scrolling is done only when |
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442 * iRedrawTimer completes. |
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443 */ |
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444 TInt iSkippedScrollbarEventsCount; |
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445 |
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446 /** |
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447 * A timer that initiates redraws at certain time intervals. |
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448 * It is used to refresh the view while scrolling with |
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449 * the scrollbar. |
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450 */ |
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451 CPeriodic* iRedrawTimer; |
387 }; |
452 }; |
388 |
453 |
389 #endif // MMLISTBOX_H |
454 #endif // MMLISTBOX_H |