Mercurial > minori
annotate include/gui/widgets/graph.h @ 337:a7d4e5107531
dep/animone: REFACTOR ALL THE THINGS
1: animone now has its own syntax divergent from anisthesia,
making different platforms actually have their own sections
2: process names in animone are now called `comm' (this will
probably break things). this is what its called in bsd/linux
so I'm just going to use it everywhere
3: the X11 code now checks for the existence of a UTF-8 window title
and passes it if available
4: ANYTHING THATS NOT LINUX IS 100% UNTESTED AND CAN AND WILL BREAK!
I still actually need to test the bsd code. to be honest I'm probably
going to move all of the bsds into separate files because they're
all essentially different operating systems at this point
| author | Paper <paper@paper.us.eu.org> |
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| date | Wed, 19 Jun 2024 12:51:15 -0400 |
| parents | f31305b9f60a |
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1 #ifndef MINORI_GUI_WIDGETS_GRAPH_H_ |
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2 #define MINORI_GUI_WIDGETS_GRAPH_H_ |
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4 /* This class is defined as a template, so that means everything gets defined here as well :) */ |
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| 102 | 6 #include <QDebug> |
| 93 | 7 #include <QPaintEvent> |
| 8 #include <QPainter> | |
| 9 #include <QPainterPath> | |
| 10 #include <QPen> | |
| 258 | 11 #include <QRect> |
| 12 #include <QSize> | |
| 13 #include <QWidget> | |
| 102 | 14 #include <algorithm> |
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15 #include <unordered_map> |
| 93 | 16 |
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17 template<typename T> |
| 93 | 18 class Graph final : public QWidget { |
| 258 | 19 public: |
| 20 Graph(QWidget* parent = nullptr) : QWidget(parent){}; | |
| 21 void AddItem(T key, unsigned long val) { | |
| 22 map[key] = val; | |
| 23 update(); | |
| 24 updateGeometry(); | |
| 25 }; | |
| 26 void Clear() { | |
| 27 map.clear(); | |
| 28 update(); | |
| 29 updateGeometry(); | |
| 30 }; | |
| 31 | |
| 32 protected: | |
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33 static constexpr int HORIZ_SPACING = 5; |
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34 static constexpr int VERT_SPACING = 3; |
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35 |
| 258 | 36 std::unordered_map<T, unsigned long> map = {}; |
| 93 | 37 |
| 258 | 38 QSize minimumSizeHint() const override { |
| 39 QFontMetrics metric(font()); | |
| 40 /* wtf?... */ | |
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41 return QSize(100, (metric.height() * map.size()) + (VERT_SPACING * map.size())); |
| 258 | 42 } |
| 43 | |
| 44 /* helper functions */ | |
| 45 inline unsigned long GetTotal() { | |
| 46 unsigned long count = 0; | |
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47 |
| 258 | 48 for (const auto& item : map) |
| 49 count += item.second; | |
| 50 | |
| 51 return count; | |
| 52 } | |
| 53 | |
| 54 inline unsigned long GetTextWidth() { | |
| 55 unsigned long ret = 0; | |
| 56 QFontMetrics metric(font()); | |
| 57 | |
| 58 for (const auto& item : map) { | |
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59 unsigned long width = metric.boundingRect(QString::number(item.first)).width(); |
| 258 | 60 if (width > ret) |
| 61 ret = width; | |
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62 } |
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63 |
| 258 | 64 return ret; |
| 65 } | |
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66 |
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67 inline unsigned long GetValueWidth() { |
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68 unsigned long ret = 0; |
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69 QFontMetrics metric(font()); |
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70 |
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71 for (const auto& item : map) { |
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72 unsigned long width = metric.boundingRect(QString::number(item.second)).width(); |
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73 if (width > ret) |
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74 ret = width; |
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75 } |
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76 |
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77 return ret; |
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78 } |
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79 |
| 258 | 80 void paintEvent(QPaintEvent* event) override { |
| 81 /* these are retrieved from the QPaintEvent */ | |
| 82 const QRect rect = event->rect(); | |
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83 const int width = rect.width(); |
| 258 | 84 const int x = rect.x(); |
| 85 int y = rect.y(); | |
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86 |
| 258 | 87 /* these are calculated from font metrics and such */ |
| 88 const int total = GetTotal(); | |
| 89 const int text_width = GetTextWidth(); | |
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90 const int value_width = GetValueWidth(); |
| 258 | 91 const int each_height = QFontMetrics(font()).height(); |
| 92 | |
| 93 /* now we do the actual painting */ | |
| 94 QPainter painter(this); | |
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95 |
| 258 | 96 for (const auto& [key, value] : map) { |
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97 int offset = 0; |
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98 |
| 258 | 99 painter.drawText(QRect(x, y, text_width, each_height), Qt::AlignVCenter | Qt::AlignRight, |
| 100 QString::number(key)); | |
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101 |
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102 offset += text_width + HORIZ_SPACING; |
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103 |
| 258 | 104 /* only draw this if we actually have any data */ |
| 105 if (total) { | |
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106 painter.save(); |
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107 |
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108 QPen pen(painter.pen()); |
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109 pen.setStyle(Qt::NoPen); |
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110 painter.setPen(pen); |
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111 |
| 258 | 112 QPainterPath path; |
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113 path.addRect(x + offset, y, |
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114 (static_cast<double>(value) / total) * (width - offset - HORIZ_SPACING - value_width), each_height); |
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115 painter.fillPath(path, Qt::darkGreen); |
| 258 | 116 painter.drawPath(path); |
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117 |
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118 offset += (static_cast<double>(value) / total) * (width - offset - HORIZ_SPACING - value_width); |
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119 |
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120 painter.restore(); |
| 102 | 121 } |
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122 |
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123 offset += HORIZ_SPACING; |
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124 |
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125 painter.drawText(QRect(x + offset, y, value_width, each_height), Qt::AlignVCenter | Qt::AlignLeft, QString::number(value)); |
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126 |
| 258 | 127 y += each_height + VERT_SPACING; |
| 102 | 128 } |
| 258 | 129 } |
| 93 | 130 }; |
| 131 | |
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132 #endif // MINORI_GUI_WIDGETS_GRAPH_H_ |