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3c45358296
Pressing the divide button adds an empty fraction layout without "absorbing" the neighbouring layouts. Change-Id: I46bdeadfcd80ec3c51c676ae62747e0823718645
80 lines
3.0 KiB
C++
80 lines
3.0 KiB
C++
#include "controller.h"
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#include <poincare/src/layout/char_layout.h> //TODO move from there.
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#include <poincare/src/layout/fraction_layout.h> //TODO move from there.
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#include <poincare/src/layout/empty_visible_layout.h> //TODO move from there.
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using namespace Poincare;
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namespace ExpressionEditor {
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Controller::Controller(Responder * parentResponder, ExpressionLayout * expressionLayout) :
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ViewController(parentResponder),
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m_view(parentResponder, expressionLayout, &m_cursor),
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m_expressionLayout(expressionLayout)
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{
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m_cursor.setPointedExpressionLayout(expressionLayout->editableChild(0));
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}
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void Controller::didBecomeFirstResponder() {
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m_view.layoutSubviews();
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/* TODO We need the layout to be done in order to scroll to the cursor. We
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* thus made ExpressionViewWithCursor's layoutSubviews() public, which is the
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* solution used in ModalViewController for instance. A cleaner solution would
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* be to split viewWillAppear into loadViewIfNeeded() and viewWillAppear(), in
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* order to change App::didBecomeActive to:
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* m_modalViewController.loadViewIfNeeded();
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* window->setContentView(view);
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* m_modalViewController.viewWillAppear();
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* The scrolling could then be done in viewWillAppear(), without calling
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* layoutSubviews() manually. */
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m_view.scrollableExpressionViewWithCursor()->scrollToCursor();
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}
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bool Controller::handleEvent(Ion::Events::Event event) {
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bool returnValue = false;
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if ((event == Ion::Events::Left && m_cursor.moveLeft())
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|| (event == Ion::Events::Right && m_cursor.moveRight())
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|| (event == Ion::Events::Up && m_cursor.moveUp())
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|| (event == Ion::Events::Down && m_cursor.moveDown()))
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{
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returnValue = true;
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} else if (event == Ion::Events::Division) {
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EmptyVisibleLayout * child1 = new EmptyVisibleLayout();
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EmptyVisibleLayout * child2 = new EmptyVisibleLayout();
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FractionLayout * newChild = new FractionLayout(child1, child2, false);
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m_cursor.pointedExpressionLayout()->addBrother(&m_cursor, newChild);
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m_cursor.setPointedExpressionLayout(newChild);
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m_cursor.setPosition(ExpressionLayoutCursor::Position::Right);
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m_cursor.setPositionInside(0);
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returnValue = true;
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m_expressionLayout->invalidAllSizesPositionsAndBaselines();
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m_view.layoutSubviews();
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} else if (event.hasText()) {
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insertTextAtCursor(event.text());
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returnValue = true;
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m_expressionLayout->invalidAllSizesPositionsAndBaselines();
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m_view.layoutSubviews();
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}
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m_view.cursorPositionChanged();
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return returnValue;
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}
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void Controller::insertTextAtCursor(const char * text) {
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int textLength = strlen(text);
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if (textLength <= 0) {
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return;
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}
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CharLayout * newChild = nullptr;
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for (int i = 0; i < textLength; i++) {
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newChild = new CharLayout(text[i]);
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m_cursor.pointedExpressionLayout()->addBrother(&m_cursor, newChild);
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}
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assert(newChild != nullptr);
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m_cursor.setPointedExpressionLayout(newChild);
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m_cursor.setPosition(ExpressionLayoutCursor::Position::Right);
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m_cursor.setPositionInside(0);
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}
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}
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