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libs/command/kundo2stack.cpp
| Show First 20 Lines • Show All 219 Lines • ▼ Show 20 Line(s) | 219 | { | |||
|---|---|---|---|---|---|
| 220 | Q_UNUSED(command); | 220 | Q_UNUSED(command); | ||
| 221 | return false; | 221 | return false; | ||
| 222 | } | 222 | } | ||
| 223 | 223 | | |||
| 224 | /*! | 224 | /*! | ||
| 225 | Applies a change to the document. This function must be implemented in | 225 | Applies a change to the document. This function must be implemented in | ||
| 226 | the derived class. Calling KUndo2QStack::push(), | 226 | the derived class. Calling KUndo2QStack::push(), | ||
| 227 | KUndo2QStack::undo() or KUndo2QStack::redo() from this function leads to | 227 | KUndo2QStack::undo() or KUndo2QStack::redo() from this function leads to | ||
| 228 | undefined beahavior. | 228 | undefined behavior. | ||
| 229 | 229 | | |||
| 230 | The default implementation calls redo() on all child commands. | 230 | The default implementation calls redo() on all child commands. | ||
| 231 | 231 | | |||
| 232 | \sa undo() | 232 | \sa undo() | ||
| 233 | */ | 233 | */ | ||
| 234 | 234 | | |||
| 235 | void KUndo2Command::redo() | 235 | void KUndo2Command::redo() | ||
| 236 | { | 236 | { | ||
| 237 | for (int i = 0; i < d->child_list.size(); ++i) | 237 | for (int i = 0; i < d->child_list.size(); ++i) | ||
| 238 | d->child_list.at(i)->redo(); | 238 | d->child_list.at(i)->redo(); | ||
| 239 | } | 239 | } | ||
| 240 | 240 | | |||
| 241 | /*! | 241 | /*! | ||
| 242 | Reverts a change to the document. After undo() is called, the state of | 242 | Reverts a change to the document. After undo() is called, the state of | ||
| 243 | the document should be the same as before redo() was called. This function must | 243 | the document should be the same as before redo() was called. This function must | ||
| 244 | be implemented in the derived class. Calling KUndo2QStack::push(), | 244 | be implemented in the derived class. Calling KUndo2QStack::push(), | ||
| 245 | KUndo2QStack::undo() or KUndo2QStack::redo() from this function leads to | 245 | KUndo2QStack::undo() or KUndo2QStack::redo() from this function leads to | ||
| 246 | undefined beahavior. | 246 | undefined behavior. | ||
| 247 | 247 | | |||
| 248 | The default implementation calls undo() on all child commands in reverse order. | 248 | The default implementation calls undo() on all child commands in reverse order. | ||
| 249 | 249 | | |||
| 250 | \sa redo() | 250 | \sa redo() | ||
| 251 | */ | 251 | */ | ||
| 252 | 252 | | |||
| 253 | void KUndo2Command::undo() | 253 | void KUndo2Command::undo() | ||
| 254 | { | 254 | { | ||
| ▲ Show 20 Lines • Show All 322 Lines • ▼ Show 20 Line(s) | 557 | { | |||
| 577 | } | 577 | } | ||
| 578 | 578 | | |||
| 579 | if (cleanStateChanged) { | 579 | if (cleanStateChanged) { | ||
| 580 | emit cleanChanged(isClean()); | 580 | emit cleanChanged(isClean()); | ||
| 581 | } | 581 | } | ||
| 582 | } | 582 | } | ||
| 583 | 583 | | |||
| 584 | /*! \internal | 584 | /*! \internal | ||
| 585 | If the number of commands on the stack exceedes the undo limit, deletes commands from | 585 | If the number of commands on the stack exceeds the undo limit, deletes commands from | ||
| 586 | the bottom of the stack. | 586 | the bottom of the stack. | ||
| 587 | 587 | | |||
| 588 | Returns true if commands were deleted. | 588 | Returns true if commands were deleted. | ||
| 589 | */ | 589 | */ | ||
| 590 | 590 | | |||
| 591 | bool KUndo2QStack::checkUndoLimit() | 591 | bool KUndo2QStack::checkUndoLimit() | ||
| 592 | { | 592 | { | ||
| 593 | if (m_undo_limit <= 0 || !m_macro_stack.isEmpty() || m_undo_limit >= m_command_list.count()) | 593 | if (m_undo_limit <= 0 || !m_macro_stack.isEmpty() || m_undo_limit >= m_command_list.count()) | ||
| ▲ Show 20 Lines • Show All 143 Lines • ▼ Show 20 Line(s) | 710 | { | |||
| 737 | * QVector field in the commands using 3 parameters. | 737 | * QVector field in the commands using 3 parameters. | ||
| 738 | * | 738 | * | ||
| 739 | * N : Number of commands that should remain individual at the top of the | 739 | * N : Number of commands that should remain individual at the top of the | ||
| 740 | * stack. | 740 | * stack. | ||
| 741 | * | 741 | * | ||
| 742 | * T1 : Time lapsed between current command and previously merged command | 742 | * T1 : Time lapsed between current command and previously merged command | ||
| 743 | * -- signal to merge throughout the stack. | 743 | * -- signal to merge throughout the stack. | ||
| 744 | * | 744 | * | ||
| 745 | * T2 : Time elapsed between two commands signalling both commands belong | 745 | * T2 : Time elapsed between two commands signaling both commands belong | ||
| 746 | * of the same set | 746 | * of the same set | ||
| 747 | * | 747 | * | ||
| 748 | * Whenever a KUndo2Command is initialized -- it consists of a start-time | 748 | * Whenever a KUndo2Command is initialized -- it consists of a start-time | ||
| 749 | * and when it is pushed -- an end time. Every time a command is pushed -- | 749 | * and when it is pushed -- an end time. Every time a command is pushed -- | ||
| 750 | * it checks whether the command pushed was pushed after T1 seconds of the | 750 | * it checks whether the command pushed was pushed after T1 seconds of the | ||
| 751 | * last merged command Then the merging begins with each group depending on | 751 | * last merged command Then the merging begins with each group depending on | ||
| 752 | * the time in between each command (T2). | 752 | * the time in between each command (T2). | ||
| 753 | * | 753 | * | ||
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