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#include "fpgaviewwidget.h"
#include <QApplication>
#include <QCoreApplication>
#include <QMouseEvent>
#include <QWidget>
#include <math.h>
#include "mainwindow.h"
FPGAViewWidget::FPGAViewWidget(QWidget *parent)
: QOpenGLWidget(parent), m_xMove(0), m_yMove(0), m_zDistance(1.0)
{
design = qobject_cast<MainWindow *>(getMainWindow())->getDesign();
}
QMainWindow *FPGAViewWidget::getMainWindow()
{
QWidgetList widgets = qApp->topLevelWidgets();
for (QWidgetList::iterator i = widgets.begin(); i != widgets.end(); ++i)
if ((*i)->objectName() == "MainWindow")
return (QMainWindow *)(*i);
return NULL;
}
FPGAViewWidget::~FPGAViewWidget() {}
QSize FPGAViewWidget::minimumSizeHint() const { return QSize(640, 480); }
QSize FPGAViewWidget::sizeHint() const { return QSize(640, 480); }
void FPGAViewWidget::setXTranslation(float t_x)
{
if (t_x != m_xMove) {
m_xMove = t_x;
update();
}
}
void FPGAViewWidget::setYTranslation(float t_y)
{
if (t_y != m_yMove) {
m_yMove = t_y;
update();
}
}
void FPGAViewWidget::setZoom(float t_z)
{
if (t_z != m_zDistance) {
m_zDistance -= t_z;
if (m_zDistance < 0.1f)
m_zDistance = 0.1f;
if (m_zDistance > 10.0f)
m_zDistance = 10.0f;
update();
}
}
void FPGAViewWidget::initializeGL()
{
initializeOpenGLFunctions();
glClearColor(1.0, 1.0, 1.0, 0.0);
}
void FPGAViewWidget::drawElement(const GraphicElement &el)
{
float scale = 1.0, offset = 0.0;
if (el.type == GraphicElement::G_BOX) {
glBegin(GL_LINES);
glVertex3f((offset + scale * el.x1), (offset + scale * el.y1), 0.0f);
glVertex3f((offset + scale * el.x2), (offset + scale * el.y1), 0.0f);
glVertex3f((offset + scale * el.x2), (offset + scale * el.y1), 0.0f);
glVertex3f((offset + scale * el.x2), (offset + scale * el.y2), 0.0f);
glVertex3f((offset + scale * el.x2), (offset + scale * el.y2), 0.0f);
glVertex3f((offset + scale * el.x1), (offset + scale * el.y2), 0.0f);
glVertex3f((offset + scale * el.x1), (offset + scale * el.y2), 0.0f);
glVertex3f((offset + scale * el.x1), (offset + scale * el.y1), 0.0f);
glEnd();
}
if (el.type == GraphicElement::G_LINE) {
glBegin(GL_LINES);
glVertex3f((offset + scale * el.x1), (offset + scale * el.y1), 0.0f);
glVertex3f((offset + scale * el.x2), (offset + scale * el.y2), 0.0f);
glEnd();
}
}
void FPGAViewWidget::paintGL()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
glTranslatef(m_xMove, m_yMove, -10.0);
glScalef(m_zDistance, m_zDistance, 0.0f);
// Grid
glColor3f(0.9, 0.9, 0.9);
glBegin(GL_LINES);
for (float i = -100; i <= 100; i += 0.1) {
glVertex3f((float)i, -100.0f, 0.0f);
glVertex3f((float)i, 100.0f, 0.0f);
glVertex3f(-100.0f, (float)i, 0.0f);
glVertex3f(100.0f, (float)i, 0.0f);
}
glColor3f(0.7, 0.7, 0.7);
for (int i = -100; i <= 100; i += 1) {
glVertex3f((float)i, -100.0f, 0.0f);
glVertex3f((float)i, 100.0f, 0.0f);
glVertex3f(-100.0f, (float)i, 0.0f);
glVertex3f(100.0f, (float)i, 0.0f);
}
glEnd();
glColor3f(0.1, 0.1, 0.1);
glLineWidth(0.1);
// Draw Bels
for (auto bel : design->chip.getBels()) {
for (auto &el : design->chip.getBelGraphics(bel))
drawElement(el);
}
// Draw Frame Graphics
for (auto &el : design->chip.getFrameGraphics())
drawElement(el);
}
void FPGAViewWidget::resizeGL(int width, int height)
{
m_windowWidth = width;
m_windowHeight = height;
glViewport(0, 0, m_windowWidth, m_windowHeight);
float aspect = width * 1.0 / height;
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(-1.0 * aspect, +1.0 * aspect, -1.0, +1.0, 1.0, 15.0);
glMatrixMode(GL_MODELVIEW);
}
void FPGAViewWidget::mousePressEvent(QMouseEvent *event)
{
m_lastPos = event->pos();
}
void FPGAViewWidget::mouseMoveEvent(QMouseEvent *event)
{
int dx = event->x() - m_lastPos.x();
int dy = event->y() - m_lastPos.y();
float dx_scale = dx * (1 / (float)640);
float dy_scale = -dy * (1 / (float)480);
if (event->buttons() & Qt::LeftButton) {
float xpos = m_xMove + dx_scale;
float ypos = m_yMove + dy_scale;
if (m_xMove / m_zDistance <= 100.0 && m_xMove / m_zDistance >= -100.0)
setXTranslation(xpos);
if (m_yMove / m_zDistance <= 100.0 && m_yMove / m_zDistance >= -100.0)
setYTranslation(ypos);
}
m_lastPos = event->pos();
}
void FPGAViewWidget::wheelEvent(QWheelEvent *event)
{
QPoint degree = event->angleDelta() / 8;
if (!degree.isNull()) {
QPoint step = degree / 15;
setZoom(step.y() * -0.1f);
}
}
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