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fef1b84f0a
QStringLiterals generate a buffer so that during runtime there's very
little cost to constructing a QString. However, this also means that
duplicated strings cannot be optimized out into a single entry that gets
referenced everywhere, taking up space in the binary.
Rather than use QStringLiteral(""), we can just use QString{} (the
default constructor) to signify the empty string. This gets rid of an
unnecessary string buffer from being created, saving a tiny bit of
space.
While we're at it, we can just use the character overloads of particular
functions when they're available instead of using a QString overload.
The characters in this case are Latin-1 to begin with, so we can just
specify the characters as QLatin1Char instances to use those overloads.
These will automatically convert to QChar if needed, so this is safe.
112 lines
3.0 KiB
C++
112 lines
3.0 KiB
C++
// Copyright 2017 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#include "DolphinQt/Config/Mapping/MappingCommon.h"
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#include <tuple>
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#include <QApplication>
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#include <QPushButton>
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#include <QRegExp>
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#include <QString>
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#include <QTimer>
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#include "DolphinQt/QtUtils/BlockUserInputFilter.h"
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#include "InputCommon/ControlReference/ControlReference.h"
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#include "InputCommon/ControllerInterface/Device.h"
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#include "Common/Thread.h"
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namespace MappingCommon
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{
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constexpr int INPUT_DETECT_TIME = 3000;
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constexpr int OUTPUT_TEST_TIME = 2000;
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QString GetExpressionForControl(const QString& control_name,
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const ciface::Core::DeviceQualifier& control_device,
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const ciface::Core::DeviceQualifier& default_device, Quote quote)
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{
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QString expr;
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// non-default device
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if (control_device != default_device)
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{
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expr += QString::fromStdString(control_device.ToString());
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expr += QLatin1Char{':'};
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}
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// append the control name
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expr += control_name;
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if (quote == Quote::On)
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{
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QRegExp reg(QStringLiteral("[a-zA-Z]+"));
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if (!reg.exactMatch(expr))
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expr = QStringLiteral("`%1`").arg(expr);
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}
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return expr;
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}
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QString DetectExpression(QPushButton* button, ciface::Core::DeviceContainer& device_container,
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const std::vector<std::string>& device_strings,
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const ciface::Core::DeviceQualifier& default_device, Quote quote)
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{
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const auto filter = new BlockUserInputFilter(button);
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button->installEventFilter(filter);
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button->grabKeyboard();
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button->grabMouse();
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const auto old_text = button->text();
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button->setText(QStringLiteral("..."));
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// The button text won't be updated if we don't process events here
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QApplication::processEvents();
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// Avoid that the button press itself is registered as an event
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Common::SleepCurrentThread(50);
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const auto [device, input] = device_container.DetectInput(INPUT_DETECT_TIME, device_strings);
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const auto timer = new QTimer(button);
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button->connect(timer, &QTimer::timeout, [button, filter] {
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button->releaseMouse();
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button->releaseKeyboard();
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button->removeEventFilter(filter);
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});
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// Prevent mappings of "space", "return", or mouse clicks from re-activating detection.
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timer->start(500);
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button->setText(old_text);
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if (!input)
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return {};
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ciface::Core::DeviceQualifier device_qualifier;
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device_qualifier.FromDevice(device.get());
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return MappingCommon::GetExpressionForControl(QString::fromStdString(input->GetName()),
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device_qualifier, default_device, quote);
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}
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void TestOutput(QPushButton* button, OutputReference* reference)
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{
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const auto old_text = button->text();
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button->setText(QStringLiteral("..."));
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// The button text won't be updated if we don't process events here
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QApplication::processEvents();
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reference->State(1.0);
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Common::SleepCurrentThread(OUTPUT_TEST_TIME);
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reference->State(0.0);
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button->setText(old_text);
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}
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} // namespace MappingCommon
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