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81 lines
2.6 KiB
C++
81 lines
2.6 KiB
C++
#ifndef APPS_MATH_TOOLBOX_H
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#define APPS_MATH_TOOLBOX_H
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#include <escher.h>
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#include "toolbox_node.h"
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/* m_nodeModel points at the node of the tree (describing the whole model)
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* where we are located. It enables to know which rows are leaves and which are
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* subtrees. */
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class MathToolbox : public Toolbox, public ListViewDataSource, public SelectableTableViewDelegate {
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public:
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MathToolbox();
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void didBecomeFirstResponder() override;
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bool handleEvent(Ion::Events::Event event) override;
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int numberOfRows() override;
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HighlightCell * reusableCell(int index, int type) override;
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int reusableCellCount(int type) override;
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void willDisplayCellForIndex(HighlightCell * cell, int index) override;
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KDCoordinate rowHeight(int j) override;
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KDCoordinate cumulatedHeightFromIndex(int j) override;
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int indexFromCumulatedHeight(KDCoordinate offsetY) override;
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int typeAtLocation(int i, int j) override;
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void viewWillAppear() override;
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void viewDidDisappear() override;
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protected:
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int stackDepth();
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TextField * sender() override;
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bool handleEventForRow(Ion::Events::Event event, int selectedRow);
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SelectableTableView m_selectableTableView;
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constexpr static int k_maxNumberOfDisplayedRows = 6; //240/40
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private:
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class Stack {
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public:
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class State {
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public:
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State(int selectedRow = -1, KDCoordinate verticalScroll = 0);
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bool isNull();
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int selectedRow();
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KDCoordinate verticalScroll();
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private:
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int m_selectedRow;
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KDCoordinate m_verticalScroll;
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};
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void push(int selectedRow, KDCoordinate verticalScroll);
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void pop();
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State * stateAtIndex(int index);
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int depth();
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void resetStack();
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private:
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constexpr static int k_maxModelTreeDepth = 2;
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State m_statesStack[k_maxModelTreeDepth];
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};
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class ListController : public ViewController {
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public:
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ListController(Responder * parentResponder, SelectableTableView * tableView);
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const char * title() override;
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View * view() override;
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void didBecomeFirstResponder() override;
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void setFirstSelectedRow(int firstSelectedRow);
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private:
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SelectableTableView * m_selectableTableView;
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int m_firstSelectedRow;
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};
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constexpr static KDCoordinate k_nodeRowHeight = 40;
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constexpr static KDCoordinate k_leafRowHeight = 40;
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const ToolboxNode * rootModel();
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bool selectLeaf(ToolboxNode * selectedNode);
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bool selectSubMenu(ToolboxNode * selectedNode);
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bool returnToPreviousMenu();
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Stack m_stack;
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MessageTableCellWithMessage m_leafCells[k_maxNumberOfDisplayedRows];
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MessageTableCellWithChevron m_nodeCells[k_maxNumberOfDisplayedRows];
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ListController m_listController;
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ToolboxNode * m_nodeModel;
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};
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#endif
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