Qt: Memory viewer now supports editing decimal values directly (closes #1705)

CHANGES

@@ -62,6 +62,7 @@ Misc:
  - Qt: Renderer can be changed while a game is running
  - Qt: Add hex index to palette view
  - Qt: Add transformation matrix info to sprite view
+ - Qt: Memory viewer now supports editing decimal values directly (closes mgba.io/i/1705)
  - Util: Reset vector size on deinit
 
 0.8.3: (2020-08-03)

src/platform/qt/MemoryView.cpp

@@ -13,6 +13,97 @@
 
 using namespace QGBA;
 
+IntValidator::IntValidator(bool isSigned, QObject* parent)
+	: QValidator(parent)
+	, m_signed(isSigned)
+{
+}
+
+QValidator::State IntValidator::validate(QString& input, int&) const {
+	if (input.isEmpty()) {
+		return QValidator::Intermediate;
+	}
+	if (input.size() == 1 && input[0] == '-') {
+		if (m_signed) {
+			return QValidator::Intermediate;
+		} else {
+			return QValidator::Invalid;
+		}
+	}
+	if (input[0].isSpace()) {
+		return QValidator::Invalid;
+	}
+	if (input[input.size() - 1].isSpace()) {
+		return QValidator::Invalid;
+	}
+	if (input.size() > 1 && input[0] == '0') {
+		return QValidator::Invalid;
+	}
+
+	bool ok = false;
+	qlonglong val = locale().toLongLong(input, &ok);
+	if (!ok) {
+		return QValidator::Invalid;
+	}
+
+	qlonglong hardmax;
+	qlonglong hardmin;
+	qlonglong max;
+	qlonglong min;
+
+	if (m_signed) {
+		switch (m_width) {
+		case 1:
+			hardmax = 999LL;
+			hardmin = -999LL;
+			max = 0x7FLL;
+			min = -0x80LL;
+			break;
+		case 2:
+			hardmax = 99999LL;
+			hardmin = -99999LL;
+			max = 0x7FFFLL;
+			min = -0x8000LL;
+			break;
+		case 4:
+			hardmax = 9999999999LL;
+			hardmin = -9999999999LL;
+			max = 0x7FFFFFFFLL;
+			min = -0x80000000LL;
+			break;
+		default:
+			return QValidator::Invalid;
+		}
+	} else {
+		hardmin = 0;
+		min = 0;
+
+		switch (m_width) {
+		case 1:
+			hardmax = 999LL;
+			max = 0xFFLL;
+			break;
+		case 2:
+			hardmax = 99999LL;
+			max = 0xFFFFLL;
+			break;
+		case 4:
+			hardmax = 9999999999LL;
+			max = 0xFFFFFFFFLL;
+			break;
+		default:
+			return QValidator::Invalid;
+		}
+	}
+	if (val < hardmin || val > hardmax) {
+		return QValidator::Invalid;
+	}
+	if (val < min || val > max) {
+		return QValidator::Intermediate;
+	}
+	return QValidator::Acceptable;
+}
+
 MemoryView::MemoryView(std::shared_ptr<CoreController> controller, QWidget* parent)
 	: QWidget(parent)
 	, m_controller(controller)
@@ -21,6 +112,9 @@ MemoryView::MemoryView(std::shared_ptr<CoreController> controller, QWidget* pare
 
 	m_ui.hexfield->setController(controller);
 
+	m_ui.sintVal->setValidator(&m_sintValidator);
+	m_ui.uintVal->setValidator(&m_uintValidator);
+
 	mCore* core = m_controller->thread()->core;
 	const mCoreMemoryBlock* info;
 	size_t nBlocks = core->listMemoryBlocks(core, &info);
@@ -39,9 +133,21 @@ MemoryView::MemoryView(std::shared_ptr<CoreController> controller, QWidget* pare
 		}
 	}
 
-	connect(m_ui.width8, &QAbstractButton::clicked, [this]() { m_ui.hexfield->setAlignment(1); });
-	connect(m_ui.width16, &QAbstractButton::clicked, [this]() { m_ui.hexfield->setAlignment(2); });
-	connect(m_ui.width32, &QAbstractButton::clicked, [this]() { m_ui.hexfield->setAlignment(4); });
+	connect(m_ui.width8, &QAbstractButton::clicked, [this]() {
+		m_ui.hexfield->setAlignment(1);
+		m_sintValidator.setWidth(1);
+		m_uintValidator.setWidth(1);
+	});
+	connect(m_ui.width16, &QAbstractButton::clicked, [this]() {
+		m_ui.hexfield->setAlignment(2);
+		m_sintValidator.setWidth(2);
+		m_uintValidator.setWidth(2);
+	});
+	connect(m_ui.width32, &QAbstractButton::clicked, [this]() {
+		m_ui.hexfield->setAlignment(4);
+		m_sintValidator.setWidth(4);
+		m_uintValidator.setWidth(4);
+	});
 	connect(m_ui.setAddress, static_cast<void (QSpinBox::*)(int)>(&QSpinBox::valueChanged),
 	        this, static_cast<void (MemoryView::*)(uint32_t)>(&MemoryView::jumpToAddress));
 	connect(m_ui.hexfield, &MemoryModel::selectionChanged, this, &MemoryView::updateSelection);
@@ -60,6 +166,41 @@ MemoryView::MemoryView(std::shared_ptr<CoreController> controller, QWidget* pare
 	connect(m_ui.load, &QAbstractButton::clicked, m_ui.hexfield, &MemoryModel::load);
 
 	connect(m_ui.loadTBL, &QAbstractButton::clicked, m_ui.hexfield, &MemoryModel::loadTBL);
+
+	connect(m_ui.sintVal, &QLineEdit::returnPressed, this, [this]() {
+		int align = m_ui.hexfield->alignment();
+		mCore* core = m_controller->thread()->core;
+		int32_t value = m_ui.sintVal->text().toInt();
+		switch (align) {
+		case 1:
+			core->rawWrite8(core, m_selection.first, m_ui.segments->value(), value);
+			break;
+		case 2:
+			core->rawWrite16(core, m_selection.first, m_ui.segments->value(), value);
+			break;
+		case 4:
+			core->rawWrite32(core, m_selection.first, m_ui.segments->value(), value);
+			break;
+		}
+		update();
+	});
+	connect(m_ui.uintVal, &QLineEdit::returnPressed, this, [this]() {
+		int align = m_ui.hexfield->alignment();
+		mCore* core = m_controller->thread()->core;
+		uint32_t value = m_ui.uintVal->text().toUInt();
+		switch (align) {
+		case 1:
+			core->rawWrite8(core, m_selection.first, m_ui.segments->value(), value);
+			break;
+		case 2:
+			core->rawWrite16(core, m_selection.first, m_ui.segments->value(), value);
+			break;
+		case 4:
+			core->rawWrite32(core, m_selection.first, m_ui.segments->value(), value);
+			break;
+		}
+		update();
+	});
 }
 
 void MemoryView::setIndex(int index) {
@@ -116,7 +257,9 @@ void MemoryView::updateStatus() {
 
 	if (m_selection.first & (align - 1) || m_selection.second - m_selection.first != align) {
 		m_ui.sintVal->clear();
+		m_ui.sintVal->setReadOnly(true);
 		m_ui.uintVal->clear();
+		m_ui.uintVal->setReadOnly(true);
 		return;
 	}
 	union {
@@ -144,6 +287,8 @@ void MemoryView::updateStatus() {
 		m_ui.uintVal->setText(QString::number(value.u32));
 		break;
 	}
+	m_ui.sintVal->setReadOnly(false);
+	m_ui.uintVal->setReadOnly(false);
 }
 
 void MemoryView::saveRange() {
@@ -153,4 +298,4 @@ void MemoryView::saveRange() {
 	memdump->setSegment(m_ui.segments->value());
 	memdump->setByteCount(m_selection.second - m_selection.first);
 	memdump->show();
-}
+}

src/platform/qt/MemoryView.h

@@ -5,6 +5,8 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 #pragma once
 
+#include <QValidator>
+
 #include "MemoryModel.h"
 
 #include "ui_MemoryView.h"
@@ -13,6 +15,20 @@ namespace QGBA {
 
 class CoreController;
 
+class IntValidator : public QValidator {
+Q_OBJECT
+
+public:
+	IntValidator(bool isSigned, QObject* parent = nullptr);
+
+	virtual QValidator::State validate(QString& input, int& pos) const override;
+	void setWidth(int bytes) { m_width = bytes; }
+
+private:
+	int m_width = 1;
+	bool m_signed;
+};
+
 class MemoryView : public QWidget {
 Q_OBJECT
 
@@ -32,6 +48,8 @@ private slots:
 
 private:
 	Ui::MemoryView m_ui;
+	IntValidator m_sintValidator{true};
+	IntValidator m_uintValidator{false};
 
 	std::shared_ptr<CoreController> m_controller;
 	QPair<uint32_t, uint32_t> m_region;

src/platform/qt/MemoryView.ui

@@ -190,6 +190,9 @@
        </item>
        <item>
         <widget class="QLineEdit" name="uintVal">
+         <property name="maxLength">
+          <number>10</number>
+         </property>
          <property name="readOnly">
           <bool>true</bool>
          </property>
@@ -208,6 +211,9 @@
        </item>
        <item>
         <widget class="QLineEdit" name="sintVal">
+         <property name="maxLength">
+          <number>11</number>
+         </property>
          <property name="readOnly">
           <bool>true</bool>
          </property>
@@ -304,6 +310,23 @@
    <container>1</container>
   </customwidget>
  </customwidgets>
+ <tabstops>
+  <tabstop>regions</tabstop>
+  <tabstop>segments</tabstop>
+  <tabstop>setAddress</tabstop>
+  <tabstop>width8</tabstop>
+  <tabstop>width16</tabstop>
+  <tabstop>width32</tabstop>
+  <tabstop>sintVal</tabstop>
+  <tabstop>uintVal</tabstop>
+  <tabstop>stringVal</tabstop>
+  <tabstop>loadTBL</tabstop>
+  <tabstop>copy</tabstop>
+  <tabstop>paste</tabstop>
+  <tabstop>save</tabstop>
+  <tabstop>saveRange</tabstop>
+  <tabstop>load</tabstop>
+ </tabstops>
  <resources/>
  <connections/>
 </ui>