From 2c06d4374dd1e1f7f354b54fb408b66239e8415f Mon Sep 17 00:00:00 2001
From: Dmitri K <kolytchev.d@gmail.com>
Date: Fri, 2 Dec 2016 16:21:18 -0500
Subject: [PATCH] Setting up UI and selected cube texture change

---
 src/viewer/simpleViewer.cpp | 68 +++++++++++++++++++++++++++++++++----
 src/viewer/simpleViewer.h   |  2 ++
 2 files changed, 64 insertions(+), 6 deletions(-)

diff --git a/src/viewer/simpleViewer.cpp b/src/viewer/simpleViewer.cpp
index 50f238b..1f6a2bd 100644
--- a/src/viewer/simpleViewer.cpp
+++ b/src/viewer/simpleViewer.cpp
@@ -177,13 +177,13 @@ void Viewer::draw()
 
 void Viewer::drawUi(){
 
-	glCullFace(GL_FRONT);
+	glCullFace(GL_BACK);
 	glClear(GL_DEPTH_BUFFER_BIT); // make ui always on top
 
 	QMatrix4x4 projectionMatrix;
 	QMatrix4x4 uiViewMatrix;
 
-	uiViewMatrix.translate(0, -1.5, -4);
+	uiViewMatrix.translate(0, -1.45, -4);
 	camera()->getProjectionMatrix(projectionMatrix);
 
 	float colorMult = 0.2 + std::fabs(0.8 * cos(std::fmod(angle_mult * frame + 300, 360) / 360 * M_PI));
@@ -199,9 +199,13 @@ void Viewer::drawUi(){
     {
         glActiveTexture(GL_TEXTURE0);
 		TexturePrograms[i]->bind();
-		m_program->setUniformValue(m_mvMatrixLocation, uiViewMatrix);
 		uiViewMatrix.translate(1.2, 0, 0);
-		glDrawArrays(GL_TRIANGLES, 0, 36);
+		if(i == selectedTexture)
+			uiViewMatrix.scale(1.2);
+		m_program->setUniformValue(m_mvMatrixLocation, uiViewMatrix);
+		glDrawArrays(GL_TRIANGLES, 0, 6);
+		if(i == selectedTexture)
+			uiViewMatrix.scale(1/1.2);
 	}
 
 }
@@ -247,7 +251,9 @@ void Viewer::mousePressEvent(QMouseEvent* e) {
 		container->addChild(c);
 		root.addChild(container);
 	}
-	else QGLViewer::mousePressEvent(e);
+	else{
+		QGLViewer::mousePressEvent(e);
+	}
 }
 
 void Viewer::mouseReleaseEvent(QMouseEvent* e) {
@@ -259,6 +265,56 @@ void Viewer::mouseReleaseEvent(QMouseEvent* e) {
 	QGLViewer::mouseReleaseEvent(e);
 }
 
+void Viewer::keyPressEvent(QKeyEvent* e) {
+	switch ( e->key() ) {
+	case Qt::Key_W:
+		break;
+	case Qt::Key_A:
+		break;
+	case Qt::Key_S:
+		break;
+	case Qt::Key_D:
+		break;
+	case Qt::Key_Q:
+		break;
+	case Qt::Key_E:
+		break;
+
+	case Qt::Key_1: // 0x31; yaay, fall-through cases!
+	case Qt::Key_2: // 0x32
+	case Qt::Key_3: // 0x33
+	case Qt::Key_4: // 0x34
+	case Qt::Key_5: // 0x35
+	case Qt::Key_6: // 0x36
+		selectedTexture = e->key() - 0x31;
+		if(selectedObj.shape != nullptr ){
+			selectedObj.shape->setType(selectedTexture);
+		}
+		break;
+
+	default: e->ignore(); break;
+	}
+}
+
+void Viewer::keyReleaseEvent(QKeyEvent* e){
+	switch ( e->key() ) {
+	case Qt::Key_W:
+		break;
+	case Qt::Key_A:
+		break;
+	case Qt::Key_S:
+		break;
+	case Qt::Key_D:
+		break;
+	case Qt::Key_Q:
+		break;
+	case Qt::Key_E:
+		break;
+
+	default: e->ignore(); break;
+	}
+}
+
 void Viewer::init()
 {
 	identityMatrix.setToIdentity();
@@ -270,6 +326,7 @@ void Viewer::init()
 	showEntireScene();
 
 	// Init OpenGL objects
+	//setMouseBinding(Qt::NoModifier, Qt::LeftButton, CAMERA, LOOK_AROUND, true);
 	connect(context(), &QOpenGLContext::aboutToBeDestroyed, this, &Viewer::cleanup);
 	initializeOpenGLFunctions();
 
@@ -469,7 +526,6 @@ void Viewer::initShaders()
 	}//*/
 }
 
-// Creates the basic shapes in memory. We only have 3, so we just prep them all in advance.
 void Viewer::initGeometries()
 {
 	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
diff --git a/src/viewer/simpleViewer.h b/src/viewer/simpleViewer.h
index ea61947..1323242 100644
--- a/src/viewer/simpleViewer.h
+++ b/src/viewer/simpleViewer.h
@@ -95,6 +95,8 @@ protected :
 	virtual void mouseMoveEvent(QMouseEvent* e);
 	virtual void mouseReleaseEvent(QMouseEvent* e);
 	virtual void mousePressEvent(QMouseEvent *e);
+	virtual void keyPressEvent(QKeyEvent *);
+	virtual void keyReleaseEvent(QKeyEvent *);
 
 	SceneGroup root;
 	std::stack<QMatrix4x4> modelStack;