141 lines
4.1 KiB
C++
141 lines
4.1 KiB
C++
#include "RecipeLineRow.h"
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#include <QHBoxLayout>
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#include <QLabel>
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#include <QLayoutItem>
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#include <QPixmap>
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#include "BuildingIconCache.h"
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#include "ItemIconCache.h"
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namespace
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{
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// Size the items' colored squares and the building's chip are drawn at on a line, in
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// device-independent pixels. Larger than the artwork they carry, which the square
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// insets (REQ-UI-ITEM-ICON).
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const int kIconSizePx = 18;
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// Adds a freshly built label to the line and shows it.
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//
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// The show is what makes it count: a widget created under an already-visible parent
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// starts hidden, and a layout treats a hidden item as empty, so an unshown label would
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// add nothing to the size hint the surrounding widget measures itself against as soon
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// as this returns.
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void addAndShow(QHBoxLayout* layout, QLabel* label)
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{
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layout->addWidget(label);
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label->show();
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}
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} // namespace
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RecipeLineRow::RecipeLineRow(ItemIconCache* itemIcons, BuildingIconCache* buildingIcons,
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QWidget* parent)
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: QWidget(parent)
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, m_itemIcons(itemIcons)
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, m_buildingIcons(buildingIcons)
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{
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m_layout = new QHBoxLayout(this);
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m_layout->setContentsMargins(0, 0, 0, 0);
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m_layout->setSpacing(4);
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hide();
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}
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void RecipeLineRow::setLine(const Spec& spec)
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{
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if (spec.isEmpty())
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{
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// Forgotten as well as hidden, so re-selecting the same recipe later is seen as
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// a change and shows the row again.
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m_spec = Spec();
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hide();
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return;
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}
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if (spec == m_spec)
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{
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return;
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}
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m_spec = spec;
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rebuild(spec);
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show();
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}
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void RecipeLineRow::rebuild(const Spec& spec)
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{
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while (QLayoutItem* item = m_layout->takeAt(0))
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{
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if (item->widget())
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{
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item->widget()->deleteLater();
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}
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delete item;
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}
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// The building the recipe runs in, where the line has to distinguish one producer
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// from another (REQ-UI-ITEM-TOOLTIP). A building with no chip file leaves the icon
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// off, as everywhere else (REQ-UI-BUILD-ICON).
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if (spec.building.has_value() && m_buildingIcons != nullptr)
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{
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const QPixmap chip =
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m_buildingIcons->getChip(buildingTypeId(*spec.building), kIconSizePx);
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if (!chip.isNull())
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{
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QLabel* chipLabel = new QLabel(this);
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chipLabel->setPixmap(chip);
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addAndShow(m_layout, chipLabel);
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}
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}
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if (!spec.name.isEmpty())
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{
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addAndShow(m_layout, new QLabel(spec.name, this));
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}
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addAmounts(spec.inputs);
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if (!spec.inputs.empty() && !spec.outputs.empty())
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{
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const QChar rightArrow(0x2192); // U+2192 RIGHTWARDS ARROW
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addAndShow(m_layout, new QLabel(QString(rightArrow), this));
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}
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addAmounts(spec.outputs);
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if (spec.durationSeconds.has_value() && *spec.durationSeconds > 0.0)
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{
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const QChar middleDot(0x00B7); // U+00B7 MIDDLE DOT
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const QString time = spec.durationIsAddition
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? tr("+%1 s").arg(*spec.durationSeconds, 0, 'f', 1)
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: tr("%1 s").arg(*spec.durationSeconds, 0, 'f', 1);
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addAndShow(m_layout, new QLabel(
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QStringLiteral("%1 %2").arg(middleDot).arg(time), this));
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}
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m_layout->addStretch(1);
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}
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void RecipeLineRow::addAmounts(const std::vector<Amount>& amounts)
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{
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for (const Amount& entry : amounts)
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{
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// The item's icon on its colored square (REQ-UI-ITEM-ICON). A missing icon file
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// is not an error: the square stands alone then, and only an item with no square
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// either falls back to its id in text.
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const QPixmap icon = (m_itemIcons != nullptr)
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? m_itemIcons->getSquarePixmap(entry.itemId, kIconSizePx)
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: QPixmap();
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if (!icon.isNull())
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{
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QLabel* iconLabel = new QLabel(this);
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iconLabel->setPixmap(icon);
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addAndShow(m_layout, iconLabel);
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}
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else
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{
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addAndShow(m_layout,
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new QLabel(QString::fromStdString(entry.itemId), this));
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}
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addAndShow(m_layout, new QLabel(QString::number(entry.amount), this));
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}
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}
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