add wireframe paint option,

write file information on the screen,
bug fixes

QtMeshViewer/Source/GeometryEngine.cpp

@@ -127,7 +127,7 @@ void GeometryEngine::loadFile(QString filePath)
 	}
 }
 
-void GeometryEngine::drawGeometry(QOpenGLShaderProgram *program)
+void GeometryEngine::drawGeometry(QOpenGLShaderProgram *program, bool wireframe)
 {
 	if (!m_arrayBuf.isCreated() || !m_indexBuf.isCreated())
 		return;
@@ -178,7 +178,7 @@ void GeometryEngine::drawGeometry(QOpenGLShaderProgram *program)
 		bool tmp_transparent(false);
 
 		// bind the correct texture
-		if (it.textureIndex < m_materials->size())
+		if (it.textureIndex < m_materials->size() && m_materials->at(it.textureIndex).texture != Q_NULLPTR)
 		{
 			m_materials->at(it.textureIndex).texture->bind();
 			tmp_transparent = m_materials->at(it.textureIndex).transparent;
@@ -195,7 +195,7 @@ void GeometryEngine::drawGeometry(QOpenGLShaderProgram *program)
 		program->setUniformValue("b_transparent", tmp_transparent);
 
 		// Draw cube geometry using indices from VBO 1
-		glDrawElements(GL_TRIANGLES, it.size, GL_UNSIGNED_INT, (void*)(it.offset * sizeof(GLuint)));
+		glDrawElements(wireframe? GL_LINES : GL_TRIANGLES, it.size, GL_UNSIGNED_INT, (void*)(it.offset * sizeof(GLuint)));
 	}
 }
 

QtMeshViewer/Source/MainWindow.cpp

@@ -8,6 +8,8 @@
 #include <QSignalMapper>
 #include <QFile>
 #include <QSizePolicy>
+#include <QFont>
+#include <QResizeEvent>
 #include "..\Header\FileInterface.h"
 
 #define WINDOW_NAME "Mesh Viewer"
@@ -16,6 +18,7 @@ MainWindow::MainWindow(QWidget *parent)
 	: QMainWindow(parent)
 	, ui(new Ui::MainWindowClass)
 	, m_curSeverity(0)
+	, m_output(new QLabel(this))
 {
 	ui->setupUi(this);
 
@@ -36,6 +39,7 @@ MainWindow::MainWindow(QWidget *parent)
 MainWindow::~MainWindow()
 {
 	delete ui;
+	delete m_output;
 }
 
 void MainWindow::openFile()
@@ -89,6 +93,14 @@ void MainWindow::setupWidgets()
 
 	ui->mainToolBar->addSeparator();
 
+	QAction *wireframe = new QAction(QIcon(":/images/toolbar/wireframe.png"), "Wireframe", this);
+	wireframe->setCheckable(true);
+	wireframe->setChecked(false);
+	connect(wireframe, &QAction::triggered, viewer, &OglViewerWidget::toggleWireframe);
+	ui->mainToolBar->addAction(wireframe);
+
+	ui->mainToolBar->addSeparator();
+
 	QAction *fileInfo = new QAction(QIcon(":/images/toolbar/info.png"), "File info", this);
 	connect(fileInfo, &QAction::triggered, this, &MainWindow::aboutFile);
 	ui->mainToolBar->addAction(fileInfo);
@@ -97,6 +109,11 @@ void MainWindow::setupWidgets()
 	connect(help, &QAction::triggered, this, &MainWindow::aboutTool);
 	ui->mainToolBar->addAction(help);
 
+	m_output->setObjectName("output");
+	m_output->setStyleSheet("QLabel#output{color : white; min-width: 400px; min-height: 50px;}");
+	m_output->setAlignment(Qt::AlignTop);
+	m_output->setText("Name: -\nMaterials: -\nVertice: -\nTriangle: -");
+	m_output->raise();
 	
 }
 
@@ -143,6 +160,11 @@ void MainWindow::takeScreenShot()
 		viewer->grab().save(destination);
 }
 
+void MainWindow::resizeEvent(QResizeEvent * e)
+{
+	m_output->move(40, e->size().height() - 80);
+}
+
 void MainWindow::setFileInfo(QString name, QVector<Material>* materials, int vertices, int triangle)
 {
 	m_fileInfo = QByteArray("Filename: ");
@@ -165,6 +187,8 @@ void MainWindow::setFileInfo(QString name, QVector<Material>* materials, int ver
 		m_fileInfo += it.name;
 		m_fileInfo += "\n";
 	}
+
+	m_output->setText(m_fileInfo.left(m_fileInfo.indexOf("<detail>")));
 }
 
 void MainWindow::printMessage(QString message, int severity)

QtMeshViewer/Source/OglViewerWidget.cpp

@@ -226,7 +226,7 @@ void OglViewerWidget::paintGL()
 	m_program.setUniformValue("vp_matrix", m_projection * view);
 
 	// Draw cube geometry
-	m_dataEngine->drawGeometry(&m_program);
+	m_dataEngine->drawGeometry(&m_program, m_wireframe);
 }
 
 
@@ -293,3 +293,9 @@ void OglViewerWidget::changeDirection(int direction)
 		break;
 	}
 }
+
+void OglViewerWidget::toggleWireframe()
+{
+	m_wireframe = 1 - m_wireframe;
+	update();
+}