equation_list_view.cpp
4.94 KB
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
#include "equation_list_view.h"
namespace Solver {
/* EquationListView */
EquationListView::EquationListView(Responder * parentResponder, TableViewDataSource * dataSource, SelectableTableViewDataSource * selectionDataSource) :
Responder(parentResponder),
View(),
m_braceStyle(BraceStyle::None),
m_listView(this, dataSource, selectionDataSource),
m_braceView(),
m_scrollBraceView(&m_braceView, this)
{
m_listView.setMargins(0);
m_listView.setVerticalCellOverlap(0);
m_listView.setShowsIndicators(false);
selectionDataSource->setScrollViewDelegate(this);
m_scrollBraceView.setMargins(k_margin, k_margin, k_margin, k_margin);
m_scrollBraceView.setShowsIndicators(false);
m_scrollBraceView.setBackgroundColor(KDColorWhite);
}
void EquationListView::setBraceStyle(BraceStyle style) {
if (m_braceStyle != style) {
m_braceStyle = style;
layoutSubviews();
}
}
void EquationListView::scrollViewDidChangeOffset(ScrollViewDataSource * scrollViewDataSource) {
m_scrollBraceView.setContentOffset(KDPoint(0, scrollViewDataSource->offset().y()));
layoutSubviews();
}
int EquationListView::numberOfSubviews() const {
return 2;
}
View * EquationListView::subviewAtIndex(int index) {
View * subviews[] = {&m_listView, &m_scrollBraceView};
return subviews[index];
}
void EquationListView::didBecomeFirstResponder() {
app()->setFirstResponder(&m_listView);
}
void EquationListView::layoutSubviews() {
m_listView.setFrame(KDRect(0, 0, bounds().width(), bounds().height()));
if (m_braceStyle != BraceStyle::None) {
KDCoordinate braceWidth = m_braceView.minimalSizeForOptimalDisplay().width();
KDCoordinate braceHeight = m_listView.minimalSizeForOptimalDisplay().height()-2*k_margin;
braceHeight = m_braceStyle == BraceStyle::OneRowShort ? braceHeight - Metric::StoreRowHeight : braceHeight;
m_braceView.setSize(KDSize(braceWidth, braceHeight));
KDCoordinate scrollBraceHeight = m_listView.minimalSizeForOptimalDisplay().height()-offset().y();
scrollBraceHeight = m_braceStyle == BraceStyle::OneRowShort ? scrollBraceHeight - Metric::StoreRowHeight : scrollBraceHeight;
m_scrollBraceView.setFrame(KDRect(0, 0, k_braceTotalWidth, scrollBraceHeight));
} else {
m_scrollBraceView.setFrame(KDRectZero);
}
}
/* EquationListView::BraceWidth */
constexpr KDCoordinate braceExtremumHeight = 6;
constexpr KDCoordinate braceExtremumWidth = 10;
constexpr KDCoordinate braceCenterHeight = 15;
constexpr KDCoordinate braceCenterWidth = 4;
const uint8_t topBrace[braceExtremumHeight][braceExtremumWidth] = {
{0xFF, 0xFF, 0xF7, 0x25, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00},
{0xFF, 0x7B, 0x02, 0x90, 0xC4, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
{0x92, 0x18, 0xD7, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
{0x3D, 0xAC, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
{0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
{0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
};
const uint8_t middleBrace[braceCenterHeight][braceCenterWidth] = {
{0xFF, 0xFF, 0xFF, 0x00},
{0xFF, 0xFF, 0xD7, 0x29},
{0xFF, 0xFF, 0xB9, 0x33},
{0xFF, 0xFF, 0x7B, 0x76},
{0xFF, 0xFF, 0x2C, 0xC3},
{0xFF, 0xAA, 0x44, 0xFF},
{0xFF, 0x38, 0xAB, 0xFF},
{0x00, 0x00, 0xFF, 0xFF},
{0xFF, 0x38, 0xAB, 0xFF},
{0xFF, 0xAA, 0x44, 0xFF},
{0xFF, 0xFF, 0x2C, 0xC3},
{0xFF, 0xFF, 0x7B, 0x76},
{0xFF, 0xFF, 0xB9, 0x33},
{0xFF, 0xFF, 0xD7, 0x29},
{0xFF, 0xFF, 0xFF, 0x00},
};
const uint8_t bottomBrace[braceExtremumHeight][braceExtremumWidth] = {
{0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
{0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
{0x3D, 0xAC, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
{0x92, 0x18, 0xD7, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
{0xFF, 0x7B, 0x02, 0x90, 0xC4, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
{0xFF, 0xFF, 0xF7, 0x25, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00},
};
KDColor s_braceWorkingBuffer[60];
void EquationListView::BraceView::drawRect(KDContext * ctx, KDRect rect) const {
ctx->fillRect(bounds(), KDColorWhite);
KDCoordinate height = bounds().height();
KDCoordinate margin = 3;
ctx->blendRectWithMask(KDRect(margin, 0, braceExtremumWidth, braceExtremumHeight), KDColorBlack, (const uint8_t *)topBrace, (KDColor *)(s_braceWorkingBuffer));
ctx->blendRectWithMask(KDRect(0, height/2-braceCenterHeight/2, braceCenterWidth, braceCenterHeight), KDColorBlack, (const uint8_t *)middleBrace, (KDColor *)(s_braceWorkingBuffer));
ctx->blendRectWithMask(KDRect(margin, height-braceExtremumHeight, braceExtremumWidth, braceExtremumHeight), KDColorBlack, (const uint8_t *)bottomBrace, (KDColor *)(s_braceWorkingBuffer));
ctx->fillRect(KDRect(margin, braceExtremumHeight, 1, height/2-braceCenterHeight/2-braceExtremumHeight), KDColorBlack);
ctx->fillRect(KDRect(margin, height/2+braceCenterHeight/2, 1, height/2-braceExtremumHeight/2-braceExtremumHeight), KDColorBlack);
}
KDSize EquationListView::BraceView::minimalSizeForOptimalDisplay() const {
return KDSize(k_braceWidth, bounds().height());
}
}