Changed: #1301 Added max\min scale view. Improved drawing of the grid.

--HG--
branch : gsoc2011-worldeditorqt

code/nel/tools/3d/object_viewer_qt/src/plugins/landscape_editor/landscape_actions.cpp

@@ -27,7 +27,42 @@
 namespace LandscapeEditor
 {
 
-ActionLigoTile::ActionLigoTile(const LigoData &data, ZoneBuilder *zoneBuilder, QGraphicsScene *scene, QUndoCommand *parent)
+OpenLandscapeCommand::OpenLandscapeCommand(const QString &fileName, QUndoCommand *parent)
+	: QUndoCommand(parent),
+	  m_fileName(fileName)
+{
+}
+
+OpenLandscapeCommand::~OpenLandscapeCommand()
+{
+}
+
+void OpenLandscapeCommand::undo()
+{
+}
+
+void OpenLandscapeCommand::redo()
+{
+}
+
+NewLandscapeCommand::NewLandscapeCommand(QUndoCommand *parent)
+	: QUndoCommand(parent)
+{
+}
+
+NewLandscapeCommand::~NewLandscapeCommand()
+{
+}
+
+void NewLandscapeCommand::undo()
+{
+}
+
+void NewLandscapeCommand::redo()
+{
+}
+
+LigoTileCommand::LigoTileCommand(const LigoData &data, ZoneBuilder *zoneBuilder, QGraphicsScene *scene, QUndoCommand *parent)
 	: QUndoCommand(parent),
 	  m_item(0),
 	  m_zoneBuilder(zoneBuilder),
@@ -36,23 +71,24 @@ ActionLigoTile::ActionLigoTile(const LigoData &data, ZoneBuilder *zoneBuilder, Q
 	m_ligoData = data;
 }
 
-ActionLigoTile::~ActionLigoTile()
+LigoTileCommand::~LigoTileCommand()
 {
 }
 
-void ActionLigoTile::undo()
+void LigoTileCommand::undo()
 {
 	m_scene->removeItem(m_item);
 	delete m_item;
 	m_item = 0;
 }
 
-void ActionLigoTile::redo()
+void LigoTileCommand::redo()
 {
 	QPixmap *pixmap = m_zoneBuilder->pixmapDatabase()->pixmap(QString(m_ligoData.ZoneName.c_str()));
 	m_item = new QGraphicsPixmapItem(*pixmap, 0, m_scene);
 	m_item->setPos(m_ligoData.PosX, m_ligoData.PosY);
 	m_item->setScale(m_ligoData.Scale);
+	m_item->setTransformationMode(Qt::SmoothTransformation);
 	setText(QObject::tr("Add tile(%1, %2)").arg(m_ligoData.PosX).arg(m_ligoData.PosY));
 }
 

code/nel/tools/3d/object_viewer_qt/src/plugins/landscape_editor/landscape_actions.h

@@ -32,11 +32,33 @@ namespace LandscapeEditor
 {
 class ZoneBuilder;
 
-class ActionLigoTile : public QUndoCommand
+class OpenLandscapeCommand: public QUndoCommand
 {
 public:
-	ActionLigoTile(const LigoData &data, ZoneBuilder *zoneBuilder, QGraphicsScene *scene, QUndoCommand *parent = 0);
-	~ActionLigoTile();
+	OpenLandscapeCommand(const QString &fileName, QUndoCommand *parent = 0);
+	~OpenLandscapeCommand();
+	virtual void undo();
+	virtual void redo();
+private:
+
+	QString m_fileName;
+};
+
+class NewLandscapeCommand: public QUndoCommand
+{
+public:
+	NewLandscapeCommand(QUndoCommand *parent = 0);
+	~NewLandscapeCommand();
+	virtual void undo();
+	virtual void redo();
+private:
+};
+
+class LigoTileCommand: public QUndoCommand
+{
+public:
+	LigoTileCommand(const LigoData &data, ZoneBuilder *zoneBuilder, QGraphicsScene *scene, QUndoCommand *parent = 0);
+	~LigoTileCommand();
 
 	virtual void undo();
 	virtual void redo();

code/nel/tools/3d/object_viewer_qt/src/plugins/landscape_editor/landscape_editor_window.cpp

@@ -51,13 +51,14 @@ LandscapeEditorWindow::LandscapeEditorWindow(QWidget *parent)
 
 	m_landscapeScene = new LandscapeScene(m_undoStack, m_ui.zoneListWidget, m_zoneBuilder, this);
 	m_ui.graphicsView->setScene(m_landscapeScene);
-	//m_ui.graphicsView->setViewport(new QGLWidget(QGLFormat(QGL::DoubleBuffer | QGL::SampleBuffers)));
+	m_ui.graphicsView->setViewport(new QGLWidget(QGLFormat(QGL::DoubleBuffer | QGL::SampleBuffers)));
 
 	createMenus();
 	createToolBars();
 	readSettings();
 
 	connect(m_ui.projectSettingsAction, SIGNAL(triggered()), this, SLOT(openProjectSettings()));
+	connect(m_ui.enableGridAction, SIGNAL(toggled(bool)), m_ui.graphicsView, SLOT(setVisibleGrid(bool)));
 }
 
 LandscapeEditorWindow::~LandscapeEditorWindow()

code/nel/tools/3d/object_viewer_qt/src/plugins/landscape_editor/landscape_editor_window.ui

@@ -73,6 +73,7 @@
     <bool>false</bool>
    </attribute>
    <addaction name="projectSettingsAction"/>
+   <addaction name="enableGridAction"/>
   </widget>
   <action name="projectSettingsAction">
    <property name="icon">
@@ -83,6 +84,23 @@
     <string>Project settings</string>
    </property>
   </action>
+  <action name="enableGridAction">
+   <property name="checkable">
+    <bool>true</bool>
+   </property>
+   <property name="checked">
+    <bool>true</bool>
+   </property>
+   <property name="text">
+    <string>EnableGrid</string>
+   </property>
+   <property name="toolTip">
+    <string>Show/Hide Grid</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+G</string>
+   </property>
+  </action>
  </widget>
  <customwidgets>
   <customwidget>

code/nel/tools/3d/object_viewer_qt/src/plugins/landscape_editor/landscape_scene.cpp

@@ -38,7 +38,6 @@ LandscapeScene::LandscapeScene(QUndoStack *undoStack, ListZonesWidget *listZones
 	  m_zoneBuilder(zoneBuilder)
 {
 	m_cellSize = 160;
-	createBackgroundPixmap();
 }
 
 LandscapeScene::~LandscapeScene()
@@ -63,22 +62,10 @@ void LandscapeScene::mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent)
 	ligoData.PosY = m_cellSize * int(y / m_cellSize);
 	ligoData.Scale = m_cellSize / 256.0;
 
-	ActionLigoTile *action = new ActionLigoTile(ligoData, m_zoneBuilder, this);
+	LigoTileCommand *action = new LigoTileCommand(ligoData, m_zoneBuilder, this);
 	m_undoStack->push(action);
 
 	QGraphicsScene::mousePressEvent(mouseEvent);
 }
 
-void LandscapeScene::createBackgroundPixmap()
-{
-	QPixmap pixmap(QSize(m_cellSize, m_cellSize));
-	QPainter painter(&pixmap);
-	//painter.setRenderHint(QPainter::Antialiasing, true);
-	painter.setBrush(QBrush(Qt::lightGray));
-	painter.setPen(QPen(Qt::black, 3, Qt::DotLine));
-	painter.drawRect(0, 0, pixmap.width(), pixmap.height());
-
-	setBackgroundBrush(pixmap);
-}
-
 } /* namespace LandscapeEditor */

code/nel/tools/3d/object_viewer_qt/src/plugins/landscape_editor/landscape_scene.h

@@ -41,10 +41,9 @@ public:
 	virtual ~LandscapeScene();
 
 protected:
-	void mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent);
+	virtual void mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent);
 
 private:
-	void createBackgroundPixmap();
 
 	int m_cellSize;
 	ListZonesWidget *m_listZonesWidget;

code/nel/tools/3d/object_viewer_qt/src/plugins/landscape_editor/landscape_view.cpp

@@ -33,21 +33,55 @@ namespace LandscapeEditor
 
 LandscapeView::LandscapeView(QWidget *parent)
 	: QGraphicsView(parent),
+	  m_visibleGrid(true),
 	  m_moveMouse(false)
 {
 	setDragMode(ScrollHandDrag);
 	setTransformationAnchor(AnchorUnderMouse);
+	setBackgroundBrush(QBrush(Qt::lightGray));
+	//setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate);
+	//setRenderHints(QPainter::Antialiasing);
+	m_cellSize = 160;
+	m_numSteps = 0;
+	m_maxSteps = 20;
 }
 
 LandscapeView::~LandscapeView()
 {
 }
 
+bool LandscapeView::isVisibleGrid() const
+{
+	return m_visibleGrid;
+}
+
+void LandscapeView::setVisibleGrid(bool visible)
+{
+	m_visibleGrid = visible;
+
+	// hack for repaint view
+	translate(0.0001, 0.0001);
+}
+
 void LandscapeView::wheelEvent(QWheelEvent *event)
 {
 	double numDegrees = event->delta() / 8.0;
 	double numSteps = numDegrees / 15.0;
 	double factor = std::pow(1.125, numSteps);
+	if (factor > 1.0)
+	{
+		// check max scale view
+		if (m_numSteps > m_maxSteps)
+			return;
+		++m_numSteps;
+	}
+	else
+	{
+		// check min scale view
+		if (m_numSteps < -m_maxSteps)
+			return;
+		--m_numSteps;
+	}
 	scale(factor, factor);
 }
 
@@ -74,4 +108,31 @@ void LandscapeView::mouseReleaseEvent(QMouseEvent *event)
 	QGraphicsView::mouseReleaseEvent(event);
 }
 
+void LandscapeView::drawForeground(QPainter *painter, const QRectF &rect)
+{
+	if (!m_visibleGrid)
+		return;
+
+	qreal scaleFactor = transform().m11();
+	painter->setPen(QPen(Qt::white, 1 / scaleFactor, Qt::SolidLine));
+
+	// draw grid
+	qreal left = m_cellSize * int(rect.left() / m_cellSize);
+	qreal top = m_cellSize * int(rect.top() / m_cellSize);
+
+	// draw vertical lines
+	while (left < rect.right())
+	{
+		painter->drawLine(int(left), int(rect.bottom()), int(left), int(rect.top()));
+		left += m_cellSize;
+	}
+
+	// draw horizontal lines
+	while (top < rect.bottom())
+	{
+		painter->drawLine(int(rect.left()), int(top), int(rect.right()), int(top));
+		top += m_cellSize;
+	}
+}
+
 } /* namespace LandscapeEditor */

code/nel/tools/3d/object_viewer_qt/src/plugins/landscape_editor/landscape_view.h

@@ -19,6 +19,7 @@
 #define LANDSCAPE_VIEW_H
 
 // Project includes
+#include "landscape_editor_global.h"
 
 // Qt includes
 #include <QtGui/QGraphicsView>
@@ -27,24 +28,32 @@
 namespace LandscapeEditor
 {
 
-class LandscapeView: public QGraphicsView
+class LANDSCAPE_EDITOR_EXPORT LandscapeView: public QGraphicsView
 {
 	Q_OBJECT
 
 public:
 	LandscapeView(QWidget *parent = 0);
-	~LandscapeView();
+	virtual ~LandscapeView();
 
+	bool isVisibleGrid() const;
+
+public Q_SLOTS:
+	void setVisibleGrid(bool visible);
+
+private Q_SLOTS:
 protected:
 	virtual void wheelEvent(QWheelEvent *event);
 	virtual void mousePressEvent(QMouseEvent *event);
 	virtual void mouseMoveEvent(QMouseEvent *event);
 	virtual void mouseReleaseEvent(QMouseEvent *event);
-
-private Q_SLOTS:
+	virtual void drawForeground(QPainter *painter, const QRectF &rect);
 
 private:
 
+	bool m_visibleGrid;
+	int m_numSteps, m_maxSteps;
+	int m_cellSize;
 	bool m_moveMouse;
 }; /* class LandscapeView */