minori: include/gui/widgets/graph.h annotate

annotate include/gui/widgets/graph.h @ 187:9613d72b097e

*: multiple performance improvements like marking `static const` when it makes sense... date: change old stupid heap-based method to a structure which should make copying the thing actually make a copy. also many performance-based changes, like removing the std::tie dependency and forward-declaring nlohmann json *: replace every instance of QString::fromUtf8 to Strings::ToQString. the main difference is that our function will always convert exactly what is in the string, while some other times it would only convert up to the nearest NUL byte

author	Paper <mrpapersonic@gmail.com>
date	Wed, 06 Dec 2023 13:43:54 -0500
parents	45a0967485f1
children	862d0d8619f6

rev	line source
93 d5efb81540b3 statistics: add graph! Paper <mrpapersonic@gmail.com> parents: diff changeset	1 #ifndef __gui__widgets__graph_h
d5efb81540b3 statistics: add graph! Paper <mrpapersonic@gmail.com> parents: diff changeset	2 #define __gui__widgets__graph_h
94 2f373d48f889 : etc changes to graph stuff Paper <mrpapersonic@gmail.com>* parents: 93 diff changeset	3
96 bd68e4393e6f statistics: forward declare Graph Paper <mrpapersonic@gmail.com> parents: 94 diff changeset	4 /* This class is defined as a template, so that means everything gets defined here as well :) */
bd68e4393e6f statistics: forward declare Graph Paper <mrpapersonic@gmail.com> parents: 94 diff changeset	5
93 d5efb81540b3 statistics: add graph! Paper <mrpapersonic@gmail.com> parents: diff changeset	6 #include <QWidget>
102 b315f3759c56 : big patch Paper <mrpapersonic@gmail.com>* parents: 96 diff changeset	7 #include <QDebug>
93 d5efb81540b3 statistics: add graph! Paper <mrpapersonic@gmail.com> parents: diff changeset	8 #include <QSize>
d5efb81540b3 statistics: add graph! Paper <mrpapersonic@gmail.com> parents: diff changeset	9 #include <QPaintEvent>
d5efb81540b3 statistics: add graph! Paper <mrpapersonic@gmail.com> parents: diff changeset	10 #include <QSize>
d5efb81540b3 statistics: add graph! Paper <mrpapersonic@gmail.com> parents: diff changeset	11 #include <QRect>
d5efb81540b3 statistics: add graph! Paper <mrpapersonic@gmail.com> parents: diff changeset	12 #include <QPainter>
d5efb81540b3 statistics: add graph! Paper <mrpapersonic@gmail.com> parents: diff changeset	13 #include <QPainterPath>
d5efb81540b3 statistics: add graph! Paper <mrpapersonic@gmail.com> parents: diff changeset	14 #include <QPen>
102 b315f3759c56 : big patch Paper <mrpapersonic@gmail.com>* parents: 96 diff changeset	15 #include <algorithm>
96 bd68e4393e6f statistics: forward declare Graph Paper <mrpapersonic@gmail.com> parents: 94 diff changeset	16 #include <unordered_map>
93 d5efb81540b3 statistics: add graph! Paper <mrpapersonic@gmail.com> parents: diff changeset	17
171 03b444cbe55f graph: improve? drawing the text Paper <mrpapersonic@gmail.com> parents: 102 diff changeset	18 template<typename T>
93 d5efb81540b3 statistics: add graph! Paper <mrpapersonic@gmail.com> parents: diff changeset	19 class Graph final : public QWidget {
96 bd68e4393e6f statistics: forward declare Graph Paper <mrpapersonic@gmail.com> parents: 94 diff changeset	20 public:
bd68e4393e6f statistics: forward declare Graph Paper <mrpapersonic@gmail.com> parents: 94 diff changeset	21 Graph(QWidget* parent = nullptr) : QWidget(parent) {};
102 b315f3759c56 : big patch Paper <mrpapersonic@gmail.com>* parents: 96 diff changeset	22 void AddItem(T key, unsigned long val) { map[key] = val; update(); updateGeometry(); };
96 bd68e4393e6f statistics: forward declare Graph Paper <mrpapersonic@gmail.com> parents: 94 diff changeset	23 void Clear() { map.clear(); update(); updateGeometry(); };
93 d5efb81540b3 statistics: add graph! Paper <mrpapersonic@gmail.com> parents: diff changeset	24
96 bd68e4393e6f statistics: forward declare Graph Paper <mrpapersonic@gmail.com> parents: 94 diff changeset	25 protected:
171 03b444cbe55f graph: improve? drawing the text Paper <mrpapersonic@gmail.com> parents: 102 diff changeset	26 std::unordered_map<T, unsigned long> map = {};
03b444cbe55f graph: improve? drawing the text Paper <mrpapersonic@gmail.com> parents: 102 diff changeset	27
03b444cbe55f graph: improve? drawing the text Paper <mrpapersonic@gmail.com> parents: 102 diff changeset	28 QSize minimumSizeHint() const override {
03b444cbe55f graph: improve? drawing the text Paper <mrpapersonic@gmail.com> parents: 102 diff changeset	29 QFontMetrics metric(font());
03b444cbe55f graph: improve? drawing the text Paper <mrpapersonic@gmail.com> parents: 102 diff changeset	30 /* wtf?... */
03b444cbe55f graph: improve? drawing the text Paper <mrpapersonic@gmail.com> parents: 102 diff changeset	31 return QSize(100, metric.height() * map.size() + (2 * (map.size() - 2)));
03b444cbe55f graph: improve? drawing the text Paper <mrpapersonic@gmail.com> parents: 102 diff changeset	32 }
03b444cbe55f graph: improve? drawing the text Paper <mrpapersonic@gmail.com> parents: 102 diff changeset	33
03b444cbe55f graph: improve? drawing the text Paper <mrpapersonic@gmail.com> parents: 102 diff changeset	34 /* helper functions */
102 b315f3759c56 : big patch Paper <mrpapersonic@gmail.com>* parents: 96 diff changeset	35 inline unsigned long GetTotal() {
b315f3759c56 : big patch Paper <mrpapersonic@gmail.com>* parents: 96 diff changeset	36 unsigned long count = 0;
171 03b444cbe55f graph: improve? drawing the text Paper <mrpapersonic@gmail.com> parents: 102 diff changeset	37
96 bd68e4393e6f statistics: forward declare Graph Paper <mrpapersonic@gmail.com> parents: 94 diff changeset	38 for (const auto& item : map)
bd68e4393e6f statistics: forward declare Graph Paper <mrpapersonic@gmail.com> parents: 94 diff changeset	39 count += item.second;
171 03b444cbe55f graph: improve? drawing the text Paper <mrpapersonic@gmail.com> parents: 102 diff changeset	40
96 bd68e4393e6f statistics: forward declare Graph Paper <mrpapersonic@gmail.com> parents: 94 diff changeset	41 return count;
bd68e4393e6f statistics: forward declare Graph Paper <mrpapersonic@gmail.com> parents: 94 diff changeset	42 }
171 03b444cbe55f graph: improve? drawing the text Paper <mrpapersonic@gmail.com> parents: 102 diff changeset	43
102 b315f3759c56 : big patch Paper <mrpapersonic@gmail.com>* parents: 96 diff changeset	44 inline unsigned long GetTextWidth() {
b315f3759c56 : big patch Paper <mrpapersonic@gmail.com>* parents: 96 diff changeset	45 unsigned long ret = 0;
b315f3759c56 : big patch Paper <mrpapersonic@gmail.com>* parents: 96 diff changeset	46 QFontMetrics metric(font());
171 03b444cbe55f graph: improve? drawing the text Paper <mrpapersonic@gmail.com> parents: 102 diff changeset	47
102 b315f3759c56 : big patch Paper <mrpapersonic@gmail.com>* parents: 96 diff changeset	48 for (const auto& item : map) {
172 45a0967485f1 graph, statistics: make my code a little less messy Paper <mrpapersonic@gmail.com> parents: 171 diff changeset	49 unsigned long width = metric.horizontalAdvance(QString::number(item.first), -1);
102 b315f3759c56 : big patch Paper <mrpapersonic@gmail.com>* parents: 96 diff changeset	50 if (width > ret)
b315f3759c56 : big patch Paper <mrpapersonic@gmail.com>* parents: 96 diff changeset	51 ret = width;
b315f3759c56 : big patch Paper <mrpapersonic@gmail.com>* parents: 96 diff changeset	52 }
171 03b444cbe55f graph: improve? drawing the text Paper <mrpapersonic@gmail.com> parents: 102 diff changeset	53
102 b315f3759c56 : big patch Paper <mrpapersonic@gmail.com>* parents: 96 diff changeset	54 return ret;
b315f3759c56 : big patch Paper <mrpapersonic@gmail.com>* parents: 96 diff changeset	55 }
171 03b444cbe55f graph: improve? drawing the text Paper <mrpapersonic@gmail.com> parents: 102 diff changeset	56
96 bd68e4393e6f statistics: forward declare Graph Paper <mrpapersonic@gmail.com> parents: 94 diff changeset	57 void paintEvent(QPaintEvent* event) override {
172 45a0967485f1 graph, statistics: make my code a little less messy Paper <mrpapersonic@gmail.com> parents: 171 diff changeset	58 static constexpr int HORIZ_SPACING = 5;
45a0967485f1 graph, statistics: make my code a little less messy Paper <mrpapersonic@gmail.com> parents: 171 diff changeset	59 static constexpr int VERT_SPACING = 2;
45a0967485f1 graph, statistics: make my code a little less messy Paper <mrpapersonic@gmail.com> parents: 171 diff changeset	60
45a0967485f1 graph, statistics: make my code a little less messy Paper <mrpapersonic@gmail.com> parents: 171 diff changeset	61 /* these are retrieved from the QPaintEvent */
96 bd68e4393e6f statistics: forward declare Graph Paper <mrpapersonic@gmail.com> parents: 94 diff changeset	62 const QRect rect = event->rect();
172 45a0967485f1 graph, statistics: make my code a little less messy Paper <mrpapersonic@gmail.com> parents: 171 diff changeset	63 const int width = event->rect().width();
171 03b444cbe55f graph: improve? drawing the text Paper <mrpapersonic@gmail.com> parents: 102 diff changeset	64 const int x = rect.x();
03b444cbe55f graph: improve? drawing the text Paper <mrpapersonic@gmail.com> parents: 102 diff changeset	65 int y = rect.y();
93 d5efb81540b3 statistics: add graph! Paper <mrpapersonic@gmail.com> parents: diff changeset	66
172 45a0967485f1 graph, statistics: make my code a little less messy Paper <mrpapersonic@gmail.com> parents: 171 diff changeset	67 /* these are calculated from font metrics and such */
45a0967485f1 graph, statistics: make my code a little less messy Paper <mrpapersonic@gmail.com> parents: 171 diff changeset	68 const int total = GetTotal();
45a0967485f1 graph, statistics: make my code a little less messy Paper <mrpapersonic@gmail.com> parents: 171 diff changeset	69 const int text_width = GetTextWidth() + 10;
45a0967485f1 graph, statistics: make my code a little less messy Paper <mrpapersonic@gmail.com> parents: 171 diff changeset	70 const int each_height = QFontMetrics(font()).height();
45a0967485f1 graph, statistics: make my code a little less messy Paper <mrpapersonic@gmail.com> parents: 171 diff changeset	71
96 bd68e4393e6f statistics: forward declare Graph Paper <mrpapersonic@gmail.com> parents: 94 diff changeset	72 /* now we do the actual painting */
bd68e4393e6f statistics: forward declare Graph Paper <mrpapersonic@gmail.com> parents: 94 diff changeset	73 QPainter painter(this);
93 d5efb81540b3 statistics: add graph! Paper <mrpapersonic@gmail.com> parents: diff changeset	74
172 45a0967485f1 graph, statistics: make my code a little less messy Paper <mrpapersonic@gmail.com> parents: 171 diff changeset	75 for (const auto& [key, value] : map) {
45a0967485f1 graph, statistics: make my code a little less messy Paper <mrpapersonic@gmail.com> parents: 171 diff changeset	76 painter.drawText(QRect(x, y, text_width, each_height), Qt::AlignVCenter, QString::number(key));
93 d5efb81540b3 statistics: add graph! Paper <mrpapersonic@gmail.com> parents: diff changeset	77
172 45a0967485f1 graph, statistics: make my code a little less messy Paper <mrpapersonic@gmail.com> parents: 171 diff changeset	78 /* only draw this if we actually have any data */
45a0967485f1 graph, statistics: make my code a little less messy Paper <mrpapersonic@gmail.com> parents: 171 diff changeset	79 if (total) {
96 bd68e4393e6f statistics: forward declare Graph Paper <mrpapersonic@gmail.com> parents: 94 diff changeset	80 QPainterPath path;
172 45a0967485f1 graph, statistics: make my code a little less messy Paper <mrpapersonic@gmail.com> parents: 171 diff changeset	81 path.addRect(x + text_width + HORIZ_SPACING, y, (static_cast<double>(value)/total) * (width - text_width - HORIZ_SPACING), each_height);
102 b315f3759c56 : big patch Paper <mrpapersonic@gmail.com>* parents: 96 diff changeset	82 painter.fillPath(path, Qt::darkBlue);
96 bd68e4393e6f statistics: forward declare Graph Paper <mrpapersonic@gmail.com> parents: 94 diff changeset	83 painter.drawPath(path);
bd68e4393e6f statistics: forward declare Graph Paper <mrpapersonic@gmail.com> parents: 94 diff changeset	84 }
171 03b444cbe55f graph: improve? drawing the text Paper <mrpapersonic@gmail.com> parents: 102 diff changeset	85
172 45a0967485f1 graph, statistics: make my code a little less messy Paper <mrpapersonic@gmail.com> parents: 171 diff changeset	86 y += each_height + VERT_SPACING;
93 d5efb81540b3 statistics: add graph! Paper <mrpapersonic@gmail.com> parents: diff changeset	87 }
171 03b444cbe55f graph: improve? drawing the text Paper <mrpapersonic@gmail.com> parents: 102 diff changeset	88 }
93 d5efb81540b3 statistics: add graph! Paper <mrpapersonic@gmail.com> parents: diff changeset	89 };
d5efb81540b3 statistics: add graph! Paper <mrpapersonic@gmail.com> parents: diff changeset	90
d5efb81540b3 statistics: add graph! Paper <mrpapersonic@gmail.com> parents: diff changeset	91 #endif // __gui__widgets__graph_h

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annotate include/gui/widgets/graph.h @ 187:9613d72b097e