Omega-RPN/rpn_stack_controller.cpp at master · Gegenter/Omega-RPN · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
#include "app.h"
#include "rpn_content_view.h"
#include "rpn_stack_controller.h"
#include "rpn_input_controller.h"
#include "../shared/poincare_helpers.h"
#include <assert.h>
#include <poincare_nodes.h>

using namespace Poincare;

namespace Rpn {

StackController::StackController(Responder * parentResponder, Stack * Stack, InputController * inputController, ContentView * view, Poincare::Context *context) :
  ViewController(parentResponder),
  m_stack(Stack),
  m_inputController(inputController),
  m_view(view),
  m_context(context)
{
}

View * StackController::view() {
  return m_view;
}

void StackController::didBecomeFirstResponder() {
  reloadAndScroll();
  stackView()->selectCellAtLocation(0, m_stack->length() - 1);
}

bool StackController::handleEvent(Ion::Events::Event event) {
  size_t stackRow = m_stack->length() - selectedRow() - 1;
  bool handled = true;

  if (event == Ion::Events::Down || event == Ion::Events::Back) {
    stackView()->deselectTable();
    Container::activeApp()->setFirstResponder(m_inputController);
  }
  else if (event == Ion::Events::OK || event == Ion::Events::EXE) {
    m_inputController->setText((*m_stack)[stackRow]);
    Container::activeApp()->setFirstResponder(m_inputController);
    reloadAndScroll();
    stackView()->deselectTable();
  }
  else if (event == Ion::Events::Backspace) {
    m_stack->dropNth(stackRow);
    stackView()->reloadData(false);
    if (stackRow == 0) {
      stackView()->deselectTable();
      stackView()->selectCellAtLocation(0, m_stack->length() - 1);
    }
  }
  else if (event == Ion::Events::Clear) {
    while (m_stack->length() > stackRow+1) {
      (*m_stack)(Stack::POP);
    }
    reloadAndScroll();
  }
  else {
    handled = false;
  }

  return handled;
}

KDCoordinate StackController::rowHeight(int i) {
  return m_stack->height(m_stack->length() - i - 1) + k_padding * 2;
}

void StackController::willDisplayCellForIndex(HighlightCell * cell, int index) {
  EvenOddExpressionCell *realCell = static_cast<EvenOddExpressionCell *>(cell);
  realCell->setEven(index%2);
  realCell->setAlignment(1, 0.5);

  realCell->setLayout(createLayout(index));
  realCell->reloadCell();
}

Poincare::Layout StackController::createLayout(int index) {
  Expression e = Expression::Parse((*m_stack)[m_stack->length() - index - 1]);
  return e.createLayout(Preferences::sharedPreferences()->displayMode(), Preferences::sharedPreferences()->numberOfSignificantDigits());
}

void StackController::reloadAndScroll(int index) {
  if (index < 0 || index >= static_cast<int>(m_stack->length())) {
    index = m_stack->length()-1;
  }
  stackView()->reloadData(false);
  stackView()->scrollToCell(0, m_stack->length()-1);
}

SelectableTableView* StackController::stackView() {
  return m_view->stackView();
}


I18n::Message StackController::operator()(const char* text) {
  auto r = (*m_stack)(text, m_context);
  if (r != I18n::Message::Default) {
    reloadAndScroll();
  }
  return r;
}

I18n::Message StackController::operator()(Stack::StackOperation op) {
  auto r = (*m_stack)(op);
  if (r == I18n::Message::Default) {
    reloadAndScroll();
  }
  return r;
}

I18n::Message StackController::operator()(Stack::SpecialOperation op) {
  auto r = (*m_stack)(op, m_context);
  if (r == I18n::Message::Default) {
    reloadAndScroll();
  }
  return r;
}

I18n::Message StackController::operator()(Poincare::ExpressionNode::Type op) {
  auto r = (*m_stack)(op, m_context);
  if (r == I18n::Message::Default) {
    reloadAndScroll();
  }
  return r;
}

I18n::Message StackController::operator()(I18n::Message op) {
  auto r = (*m_stack)(op, m_context);
  if (r == I18n::Message::Default) {
    reloadAndScroll();
  }
  return r;
}

}