| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | #include "widgets/grid_view.hpp" | ||
| 2 | #include "widgets/stream_cell.hpp" | ||
| 3 | |||
| 4 | #include <QGridLayout> | ||
| 5 | #include <QLayoutItem> | ||
| 6 | #include <QScrollArea> | ||
| 7 | #include <QVBoxLayout> | ||
| 8 | #include <QtMath> | ||
| 9 | |||
| 10 | static constexpr int kMinTileW = 240; | ||
| 11 | static constexpr int kMinTileH = 160; | ||
| 12 | |||
| 13 | ✗ | grid_view::grid_view(QWidget* parent) | |
| 14 | : QWidget(parent) | ||
| 15 | ✗ | , scroll(new QScrollArea(this)) | |
| 16 | ✗ | , grid_container(new QWidget(scroll)) | |
| 17 | ✗ | , grid_layout(new QGridLayout(grid_container)) { | |
| 18 | ✗ | grid_layout->setContentsMargins(6, 6, 6, 6); | |
| 19 | ✗ | grid_layout->setSpacing(6); | |
| 20 | |||
| 21 | ✗ | grid_container->setLayout(grid_layout); | |
| 22 | |||
| 23 | ✗ | scroll->setWidgetResizable(true); | |
| 24 | ✗ | scroll->setHorizontalScrollBarPolicy(Qt::ScrollBarAsNeeded); | |
| 25 | ✗ | scroll->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff); | |
| 26 | ✗ | scroll->setWidget(grid_container); | |
| 27 | |||
| 28 | ✗ | auto* outer = new QVBoxLayout(this); | |
| 29 | ✗ | outer->setContentsMargins(0, 0, 0, 0); | |
| 30 | ✗ | outer->addWidget(scroll); | |
| 31 | ✗ | setLayout(outer); | |
| 32 | ✗ | } | |
| 33 | |||
| 34 | ✗ | bool grid_view::has_stream(const QString& name) const { | |
| 35 | ✗ | return tiles.contains(name); | |
| 36 | } | ||
| 37 | |||
| 38 | ✗ | QStringList grid_view::stream_names() const { return tiles.keys(); } | |
| 39 | |||
| 40 | ✗ | void grid_view::add_stream(const QString& name) { | |
| 41 | ✗ | if (name.isEmpty() || tiles.contains(name)) { | |
| 42 | ✗ | return; | |
| 43 | } | ||
| 44 | |||
| 45 | ✗ | auto* tile = new stream_cell(name, grid_container); | |
| 46 | ✗ | tile->setMinimumSize(kMinTileW, kMinTileH); | |
| 47 | ✗ | tile->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred); | |
| 48 | |||
| 49 | ✗ | connect( | |
| 50 | ✗ | tile, &stream_cell::request_close, this, &grid_view::close_requested | |
| 51 | ); | ||
| 52 | ✗ | connect( | |
| 53 | ✗ | tile, &stream_cell::request_focus, this, &grid_view::enlarge_requested | |
| 54 | ); | ||
| 55 | |||
| 56 | ✗ | tiles.insert(name, tile); | |
| 57 | ✗ | rebuild_layout(); | |
| 58 | } | ||
| 59 | |||
| 60 | ✗ | void grid_view::remove_stream(const QString& name) { | |
| 61 | ✗ | const auto it = tiles.find(name); | |
| 62 | ✗ | if (it == tiles.end()) { | |
| 63 | ✗ | return; | |
| 64 | } | ||
| 65 | |||
| 66 | ✗ | auto* tile = it.value(); | |
| 67 | ✗ | tiles.erase(it); | |
| 68 | |||
| 69 | ✗ | grid_layout->removeWidget(tile); | |
| 70 | ✗ | tile->deleteLater(); | |
| 71 | |||
| 72 | ✗ | rebuild_layout(); | |
| 73 | } | ||
| 74 | |||
| 75 | ✗ | stream_cell* grid_view::take_stream_cell(const QString& name) { | |
| 76 | ✗ | auto it = tiles.find(name); | |
| 77 | ✗ | if (it == tiles.end()) { | |
| 78 | return nullptr; | ||
| 79 | } | ||
| 80 | |||
| 81 | ✗ | stream_cell* cell = it.value(); | |
| 82 | |||
| 83 | ✗ | tiles.erase(it); | |
| 84 | ✗ | grid_layout->removeWidget(cell); | |
| 85 | ✗ | cell->hide(); | |
| 86 | |||
| 87 | ✗ | rebuild_layout(); | |
| 88 | return cell; | ||
| 89 | } | ||
| 90 | |||
| 91 | ✗ | void grid_view::put_stream_cell(stream_cell* cell) { | |
| 92 | ✗ | if (!cell) { | |
| 93 | ✗ | return; | |
| 94 | } | ||
| 95 | |||
| 96 | ✗ | const QString name = cell->get_name(); | |
| 97 | ✗ | if (tiles.contains(name)) { | |
| 98 | ✗ | return; | |
| 99 | } | ||
| 100 | |||
| 101 | ✗ | cell->setParent(grid_container); | |
| 102 | ✗ | tiles.insert(name, cell); | |
| 103 | ✗ | cell->show(); | |
| 104 | |||
| 105 | ✗ | rebuild_layout(); | |
| 106 | ✗ | } | |
| 107 | |||
| 108 | ✗ | stream_cell* grid_view::peek_stream_cell(const QString& name) const { | |
| 109 | ✗ | const auto it = tiles.find(name); | |
| 110 | ✗ | if (it == tiles.end()) { | |
| 111 | return nullptr; | ||
| 112 | } | ||
| 113 | ✗ | return it.value(); | |
| 114 | } | ||
| 115 | |||
| 116 | ✗ | void grid_view::close_requested(const QString& name) { | |
| 117 | ✗ | remove_stream(name); | |
| 118 | ✗ | emit stream_closed(name); | |
| 119 | ✗ | } | |
| 120 | |||
| 121 | ✗ | void grid_view::enlarge_requested(const QString& name) { | |
| 122 | ✗ | emit stream_enlarge(name); | |
| 123 | ✗ | } | |
| 124 | |||
| 125 | ✗ | static int ceil_div(const int a, const int b) { return (a + b - 1) / b; } | |
| 126 | |||
| 127 | ✗ | void grid_view::rebuild_layout() { | |
| 128 | // todo fix layout | ||
| 129 | ✗ | while (grid_layout->count() > 0) { | |
| 130 | ✗ | auto* item = grid_layout->takeAt(0); | |
| 131 | ✗ | if (item->widget()) { | |
| 132 | ✗ | item->widget()->hide(); | |
| 133 | } | ||
| 134 | ✗ | delete item; | |
| 135 | } | ||
| 136 | |||
| 137 | ✗ | const int n = static_cast<int>(tiles.size()); | |
| 138 | ✗ | if (n == 0) { | |
| 139 | ✗ | this->hide(); | |
| 140 | ✗ | updateGeometry(); | |
| 141 | ✗ | return; | |
| 142 | } | ||
| 143 | ✗ | this->show(); | |
| 144 | |||
| 145 | ✗ | const int cols = qCeil(qSqrt(static_cast<double>(n))); | |
| 146 | ✗ | const int rows = ceil_div(n, cols); | |
| 147 | |||
| 148 | ✗ | for (int c = 0; c < cols; ++c) { | |
| 149 | ✗ | grid_layout->setColumnStretch(c, 1); | |
| 150 | } | ||
| 151 | ✗ | for (int r = 0; r < rows; ++r) { | |
| 152 | ✗ | grid_layout->setRowStretch(r, 1); | |
| 153 | } | ||
| 154 | |||
| 155 | ✗ | int idx = 0; | |
| 156 | ✗ | for (auto it = tiles.cbegin(); it != tiles.cend(); ++it, ++idx) { | |
| 157 | ✗ | const int r = idx / cols; | |
| 158 | ✗ | const int c = idx % cols; | |
| 159 | ✗ | auto* tile = it.value(); | |
| 160 | ✗ | tile->show(); | |
| 161 | ✗ | grid_layout->addWidget(tile, r, c); | |
| 162 | } | ||
| 163 | |||
| 164 | ✗ | grid_container->updateGeometry(); | |
| 165 | } | ||
| 166 |