コード例 #1
0
/// This method test the undo functionality of the text
void ReplaceSelectionCommandTest::testUndo()
{
    TextEditorWidget* widget = new TextEditorWidget();
    TextEditorController* ctrl = widget->controller();
    TextDocument *doc = widget->textDocument();
    TextBuffer* buf = doc->buffer();

    // check if we can set the txt  
    ctrl->replaceSelection("test");
    testEqual( buf->text(), "test" );

    // test basic, undo/redo
        ctrl->undo();
        testEqual( buf->text(), "" );

        // test coalesce
        ctrl->replaceSelection("emma");
        ctrl->replaceSelection(" sarah",true);
        ctrl->replaceSelection(" david",true);
        testEqual( buf->text(), "emma sarah david" );
        ctrl->undo();
        testEqual( buf->text(), "emma" );

        ctrl->redo();
        testEqual( buf->text(), "emma sarah david");

    // test ranged replacement
        doc->textUndoStack()->clear();
        buf->setText("Blommers");

        testEqual( buf->text(), "Blommers" );

        // now replace 'mm' by nothing
        TextRangeSet sel( doc );
        sel.addRange(3,5);
        ctrl->replaceRangeSet( sel, "" );
        testEqual( buf->text(), "Bloers" );

        ctrl->undo();
        testEqual( buf->text(), "Blommers" );
        ctrl->redo();
        testEqual( buf->text(), "Bloers" );



        delete widget;
}
コード例 #2
0
/// execute the given selection command
/// @param controller the controller to execute the selection for
void SelectionCommand::execute( TextEditorController* controller )
{
    // save the selection state
    TextDocument* document = controller->textDocument();
    TextRangeSet* currentSelection = dynamic_cast<TextRangeSet*>( controller->textSelection() );
    TextRangeSet* sel = new TextRangeSet(*currentSelection);  // start with the current selection

    bool resetAnchors = !keepSelection_;

    // handle the select operation
    switch( unit_ ) {
        // character movement
        case MoveCaretByCharacter:
            sel->moveCarets(amount_);
            break;

        // This results in clearing the selection if a selection is present or it results in a movement of the caret.
        // When clearing a selection the caret is placed next to the selection (which side depends on the direction)
        case MoveCaretsOrDeselect:
            if( keepSelection_ ) {
                sel->moveCarets(amount_);
            } else {
                sel->moveCaretsOrDeselect(amount_);
            }
            break;

        case MoveCaretByWord:
            sel->moveCaretsByCharGroup(amount_, document->config()->whitespaceWithoutNewline(), document->config()->charGroups() );
            break;

        case MoveCaretByLine:
            TextSelection::moveCaretsByLine( controller, sel, amount_ );
            break;

        case MoveCaretToLineBoundary:
            sel->moveCaretsToLineBoundary( amount_, document->config()->whitespaceWithoutNewline() );
            break;

        case MoveCaretToDocumentBegin:
            sel->toSingleRange();
            sel->range(0).setCaret(0);
            break;

        case MoveCaretToDocumentEnd:
            sel->toSingleRange();
            sel->range(0).setCaret( controller->textDocument()->length() );
            break;

        case MoveCaretByPage:
        {
            // make sure the first line of the window is scrolled
            TextRenderer* renderer   = controller->textRenderer();
            TextEditorWidget* widget = controller->widget();
            int firstVisibleLine = renderer->firstVisibleLine();
            int linesPerPage     = renderer->viewHeightInLines();

            sel->beginChanges();
            TextSelection::moveCaretsByPage( controller, sel, amount_ );
            if( !keepSelection_ ) {
                sel->resetAnchors();    // we must reset anchors here because de process-changes will merge carets
            }
            sel->endChanges();

            firstVisibleLine += linesPerPage * amount_;
            widget->scrollTopToLine( firstVisibleLine );

            break;
        }
        case MoveCaretToExactOffset:
            sel->toSingleRange();
            sel->range(0).setCaret(amount_);
            break;

        case SelectAll:
            sel->toSingleRange();
            sel->setRange(0, document->buffer()->length() );
            resetAnchors = false;   // do not reset the anchors
            break;

        case SelectWord:
            sel->expandToWords(document->config()->whitespaces(), document->config()->charGroups());
            resetAnchors = false;   // do not reset the anchors
            break;

        case SelectWordAt:
            sel->selectWordAt( amount_, document->config()->whitespaces(), document->config()->charGroups() );
            resetAnchors = false;
            break;

        case ToggleWordSelectionAt:
            sel->toggleWordSelectionAt( amount_, document->config()->whitespaces(), document->config()->charGroups() );
            resetAnchors = false;
            break;

        case SelectFullLine:
            sel->expandToFullLines( amount_);
            resetAnchors = false;
            break;

        case AddCaretAtOffset:
            sel->addRange( amount_, amount_ );
            resetAnchors = false;   // do not reset the anchors
            break;

        case AddCaretByLine:
            TextSelection::addRangesByLine( controller, sel, amount_ );
            break;

        case ResetSelection:

            // when there's a selection ESCAPE clears the selection
            if( sel->hasSelection() ) {
                sel->clearSelection();
            } else if( sel->rangeCount() > 1 ) {
                sel->toSingleRange();
            }
            resetAnchors = false;   // keep selection
            break;
    }

    if( resetAnchors ) {
        sel->resetAnchors();
    }

    // no change?
    if( currentSelection->equals( *sel ) ) {
        delete sel;
        return; // 0
    }

    controller->changeAndGiveTextSelection( sel, commandId() );
}