Updating to [email protected] and [email protected] with a new directory structure.

NvBlast folder is gone, files have been moved to top level directory.  README is changed to reflect this.

1 files changed, 181 insertions, 0 deletions

diff --git a/tools/CurveEditor/source/Internal/Window/AlphaDialog.cpp b/tools/CurveEditor/source/Internal/Window/AlphaDialog.cpp
new file mode 100644
index 0000000..a51a802
--- /dev/null
+++ b/tools/CurveEditor/source/Internal/Window/AlphaDialog.cpp
@@ -0,0 +1,181 @@
+#include "AlphaDialog.h"
+#include "ui_AlphaDialog.h"
+#include <QtGui/QPaintEvent>
+#include <QtGui/QPainter>
+#include <QtGui/QPainterPath>
+
+namespace nvidia {
+namespace CurveEditor {
+
+const int MARGIN_X = 8;
+const int MARGIN_Y = 8;
+
+const int ALPHA_W = 255;
+const int ALPHA_H = 30;
+
+const int CURSOR_W = 12;
+const int CURSOR_H = 12;
+
+static QImage s_triangleUp;
+
+void InitTriangleResources(int w, int h)
+{
+    s_triangleUp  = QImage(w, h, QImage::Format_ARGB32);
+    s_triangleUp.fill(QColor(0, 0, 0, 0));
+
+    // a painter cannot switch device?
+    QPainterPath path;
+    QPainter painter(&s_triangleUp);
+    painter.setRenderHint(QPainter::Antialiasing,true);
+    path = QPainterPath();    // trick to clear up a path
+    path.moveTo(w>>1, 0);
+    path.lineTo(0, h);
+    path.lineTo(w, h);
+    path.lineTo(w>>1, 0);
+    painter.setPen(Qt::NoPen);
+    painter.fillPath(path, QBrush(QColor(50, 50, 50)));
+}
+
+//////////////////////////////////////////////////////////////////////////////
+bool isClickedInCursor(const QPoint& cursorPos, const QPoint& p)
+{
+    QVector<QPoint> points;
+    points.push_back(cursorPos);
+    points.push_back(QPoint(cursorPos.x() - (CURSOR_W>>1), cursorPos.y() + CURSOR_H));
+    points.push_back(QPoint(cursorPos.x() + (CURSOR_W>>1), cursorPos.y() + CURSOR_H));
+    points.push_back(cursorPos);
+
+    QPolygon polygon(points);
+    return polygon.containsPoint(p, Qt::OddEvenFill);
+}
+
+//////////////////////////////////////////////////////////////////////////////
+ int AlphaDialog::getAlpha(int alpha, QWidget *parent)
+ {
+     AlphaDialog dlg(parent, alpha);
+     dlg.exec();
+     return dlg._alpha;
+ }
+
+//////////////////////////////////////////////////////////////////////////////
+AlphaDialog::AlphaDialog(QWidget *parent, int alpha) :
+    QDialog(parent),
+    ui(new Ui::AlphaDialog),
+    _drag(false),
+    _alpha(alpha),
+    _xOffset(0)
+{
+    ui->setupUi(this);
+    setWindowFlags(windowFlags()&~Qt::WindowContextHelpButtonHint);
+    setFixedWidth(271);
+    setFixedHeight(120);
+
+    ui->spinBoxAlpha->setValue(_alpha);
+
+    InitTriangleResources(12, 12);
+}
+
+//////////////////////////////////////////////////////////////////////////////
+AlphaDialog::~AlphaDialog()
+{
+    delete ui;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+void AlphaDialog::paintEvent(QPaintEvent * e)
+{
+    QDialog::paintEvent(e);
+
+    QPainter painter;
+    painter.begin(this);
+    drawAlphaRectangle(painter);
+    drawCursor(painter, _alpha + MARGIN_X);
+    painter.end();
+}
+
+//////////////////////////////////////////////////////////////////////////////
+void AlphaDialog::mousePressEvent( QMouseEvent* e )
+{
+    if(e->button() & Qt::LeftButton)
+    {
+        QPoint mousePos = e->pos();
+
+        if (isClickedInCursor(QPoint(_alpha + MARGIN_X, MARGIN_Y + ALPHA_H), mousePos))
+        {
+            _xOffset = _alpha + MARGIN_X - mousePos.x();
+            _drag = true;
+        }
+    }
+}
+
+//////////////////////////////////////////////////////////////////////////////
+void AlphaDialog::mouseReleaseEvent( QMouseEvent* e )
+{
+    _drag = false;
+    _xOffset = -1;
+    update();
+}
+
+//////////////////////////////////////////////////////////////////////////////
+void AlphaDialog::mouseMoveEvent( QMouseEvent* e )
+{
+    Qt::MouseButtons buttons = e->buttons();
+
+    if(buttons & Qt::LeftButton)
+    {
+        if (_drag)
+        {
+            QPoint mousePos = e->pos();
+
+            _alpha = mousePos.x() + _xOffset - MARGIN_X;
+            if (_alpha < 0)
+            {
+                _alpha = 0;
+            }
+            else if(_alpha > ALPHA_W)
+            {
+                _alpha = ALPHA_W;
+            }
+            ui->spinBoxAlpha->setValue(_alpha);
+            update();
+        }
+    }
+}
+
+void AlphaDialog::drawAlphaRectangle(QPainter& painter)
+{
+    QPointF topLeftPnt(MARGIN_X, MARGIN_Y);
+    QPointF topRightPnt(MARGIN_X + ALPHA_W, MARGIN_Y);
+    QPointF bottomRightPnt(MARGIN_X + ALPHA_W, MARGIN_Y + ALPHA_H);
+    QPointF bottomLeftPnt(MARGIN_X, MARGIN_Y + ALPHA_H);
+    QPainterPath path;
+    path.moveTo(topLeftPnt);
+    path.lineTo(topRightPnt);
+    path.lineTo(bottomRightPnt);
+    path.lineTo(bottomLeftPnt);
+
+    QColor colorLeft(0, 0, 0, 255);
+    QColor colorRight(255, 255, 255, 255);
+    colorLeft.setAlpha(255);
+    colorRight.setAlpha(255);
+    QLinearGradient indicatorGradient(topLeftPnt,topRightPnt);
+    indicatorGradient.setColorAt(0.0, colorLeft);
+    indicatorGradient.setColorAt(1.0, colorRight);
+
+    painter.fillPath(path, indicatorGradient);
+}
+
+void AlphaDialog::drawCursor(QPainter& painter, int xPos)
+{
+    QRect rect(xPos - (CURSOR_W>>1), MARGIN_Y + ALPHA_H, CURSOR_W, CURSOR_H);
+    painter.drawImage(rect, s_triangleUp);
+
+}
+
+void AlphaDialog::on_spinBoxAlpha_valueChanged(int arg1)
+{
+    _alpha = arg1;
+}
+
+} // namespace CurveEditor
+} // namespace nvidia
\ No newline at end of file