Now we have a nice little editor.

1 files changed, 260 insertions, 13 deletions

diff --git a/editor/widget.cc b/editor/widget.cc
index 7b35d03..cc60f9c 100644
--- a/editor/widget.cc
+++ b/editor/widget.cc
@@ -26,35 +26,282 @@
  */
 #include "widget.h"
 
+#include <QApplication>
 #include <QDrag>
+
 #include <QLayout>
+#include <QBoxLayout>
+#include <QVBoxLayout>
+#include <QHBoxLayout>
+
+#include <QPainter>
+
+#include <QFrame>
+#include <QComboBox>
+#include <QLabel>
+#include <QPushButton>
+#include <QCheckBox>
+#include <QLineEdit>
+#include <QTextEdit>
+
+#include <math.h>
+#include <math.h>
+
 #include "widgetwrapper.h"
+#include "propertieseditor.h"
+
+Widget::Widget(QDomNode &node)
+  : QWidget()
+{
+  elem = node.toElement();
+
+  iscontainer = false;
+  if(elem.hasAttribute("layout")) {
+    setAcceptDrops(true);
+    dragObject = NULL;
+    iscontainer = true;
+    widget = new QFrame();
+    if(elem.attribute("layout") == "vbox") {
+      orientation = Qt::Vertical;
+      setLayout(new QVBoxLayout());
+    } else {
+      orientation = Qt::Horizontal;
+      setLayout(new QHBoxLayout());
+    }
+  } else {
+    setAcceptDrops(false);
+    if(elem.hasAttribute("name")) {
+      if(elem.attribute("name") == "combo") widget = new QComboBox();
+      else if(elem.attribute("name") == "label") widget = new QLabel();
+      else if(elem.attribute("name") == "button") widget = new QPushButton("OK");
+      else if(elem.attribute("name") == "checkbox") widget = new QCheckBox();
+      else if(elem.attribute("name") == "lineedit") widget = new QLineEdit();
+      else if(elem.attribute("name") == "textedit") widget = new QTextEdit();
+      else widget = new QLabel();
+    } else {
+      widget = new QFrame();
+    }
+    setLayout(new QHBoxLayout());
+  }
+  setSizePolicy(widget->sizePolicy());
+}
 
-Widget::Widget(QString type)
-  : QLabel(type)
+void Widget::setValue(QString name, QString value)
 {
-  widget = type;
-  setAutoFillBackground(true);
-  QPalette pal;
-  pal.setColor(QPalette::Foreground, Qt::black);
-  //      pal.setColor(QPalette::Background, Qt::yellow);
-  setPalette(pal);
+  elem.attributeNode(name).setValue(value);
 }
 
 void Widget::mousePressEvent(QMouseEvent *event)
 {
   if(event->button() == Qt::LeftButton) {
-    
-    QDrag *drag = new QDrag(this);
-    drag->setPixmap(QPixmap("drag.png"));
-    
+    dragStartPosition = event->pos();
+
+    // Show properties
+    if(!propertieseditor) propertieseditor = new PropertiesEditor();
+    propertieseditor->setProperties(this);
+    propertieseditor->show();
+  }
+}
+
+void Widget::mouseMoveEvent(QMouseEvent *event)
+{
+  if (!(event->buttons() & Qt::LeftButton)) return;
+
+  if((event->pos() - dragStartPosition).manhattanLength() 
+     < QApplication::startDragDistance()) return;
+  
+  if(parentWidget()) {
+
+    QDrag *drag = new QDrag(this); 
+    widget->resize(width(), height());
+    drag->setPixmap(QPixmap::grabWidget(widget, 0, 0));
+
     QMimeData *mimedata = new QMimeData();
     mimedata->setData("pracro/widget", wrapWidget(this));
     drag->setMimeData(mimedata);
     
     parentWidget()->layout()->removeWidget(this);
     setVisible(false);
-
+  
     drag->exec();
   }
 }
+
+void Widget::dragEnterEvent(QDragEnterEvent *event)
+{
+  if(!iscontainer) return;
+
+  if(event->mimeData()->hasFormat("pracro/widget")) {
+    event->acceptProposedAction();
+
+    if(dragObject) delete dragObject;
+    QFrame *frame = new QFrame();
+
+    QPalette pal;
+    pal.setColor(QPalette::Foreground, Qt::red);
+    frame->setPalette(pal);
+
+    if(orientation == Qt::Horizontal) {
+      frame->setFixedWidth(1);
+    } else {
+      frame->setFixedHeight(1);
+    }
+
+    frame->setFrameStyle(QFrame::Box | QFrame::Plain);
+    frame->setContentsMargins(1,1,0,0);
+
+    dragObject = frame;
+
+    QWidget *w = findWidget(event->pos());
+    if(w) {
+      int idx = ((QBoxLayout*)layout())->indexOf(w);
+      ((QBoxLayout*)layout())->insertWidget(idx, dragObject);
+    } else {
+      layout()->addWidget(dragObject);
+    }
+  }
+}
+
+void Widget::dragLeaveEvent(QDragLeaveEvent *)
+{
+  if(!iscontainer) return;
+
+  if(dragObject) delete dragObject;
+  dragObject = NULL;
+}
+
+void Widget::dragMoveEvent(QDragMoveEvent *event)
+{
+  if(!iscontainer) return;
+
+  if(event->mimeData()->hasFormat("pracro/widget")) {
+    event->acceptProposedAction();
+
+    layout()->removeWidget(dragObject);
+
+    QWidget *w = findWidget(event->pos());
+    if(w == dragObject) return;
+ 
+    if(w) {
+      int idx = ((QBoxLayout*)layout())->indexOf(w);
+      ((QBoxLayout*)layout())->insertWidget(idx, dragObject);
+    } else {
+      layout()->addWidget(dragObject);
+    }
+  }
+}
+
+void Widget::dropEvent(QDropEvent *event)
+{
+  if(!iscontainer) return;
+
+  if(event->mimeData()->hasFormat("pracro/widget")) {
+    int idx = layout()->indexOf(dragObject);
+
+    /*
+    QString type = event->mimeData()->data("pracro/widget").data();
+    QWidget *widget;    
+    if(type == "horizontal") widget = new Widget(Qt::Horizontal);
+    else if(type == "vertical") widget = new Widget(Qt::Vertical);
+    else widget = new Widget(type);
+    */
+    QWidget *widget = unwrapWidget(event->mimeData()->data("pracro/widget"));
+    
+    ((QBoxLayout*)layout())->insertWidget(idx, widget);
+    delete dragObject;
+    dragObject = NULL;
+    event->acceptProposedAction();
+
+    widget->setVisible(true);
+    widget->show();
+  }
+}
+
+QWidget *Widget::findWidget(QPoint pos)
+{
+  QPoint newpos = pos;
+  QWidget *w = childAt(newpos);
+
+  float angle = 0.0;
+  float dist = 0.0;
+  while((!w || QString(w->metaObject()->className()) == "QFrame") && layout()->count()) {
+
+    angle += M_PI / 4;
+    dist += 1;
+
+    newpos = pos + QPoint(sin(angle) * dist, cos(angle) * dist);
+
+    if(newpos.x() > height() && newpos.y() > width() && newpos.y() < 0 && newpos.x() < 0) {
+      break;
+    }
+
+    //    printf("%d, %d\n", newpos.x(), newpos.y());
+    w = childAt(newpos);
+  }
+  //  printf("Done {%p %s}\n", w, w!=NULL?w->metaObject()->className():"(null)");
+
+  if(w) {
+    int idx = layout()->indexOf(w);
+    //    printf("\r%d > %d", pos.y() - w->pos().y(), w->height() / 2); fflush(stdout);
+    if(orientation == Qt::Horizontal) {
+      if(pos.x() - w->pos().x() > w->width() / 2) idx++;
+    } else {
+      if(pos.y() - w->pos().y() > w->height() / 2) idx++;
+    }
+ 
+    //    if(idx < layout()->count()) idx = layout()->count() - 1;
+    if(idx >= 0 && idx < layout()->count()) w = layout()->itemAt(idx)->widget();
+    else w = NULL;
+  }
+
+  return w;
+}
+
+void Widget::paintEvent(QPaintEvent *)
+{
+  int w = width();
+  int h = height();
+  /*
+  if(widget->sizePolicy().controlType() == QSizePolicy::LineEdit ||
+     widget->sizePolicy().controlType() == QSizePolicy::PushButton ||
+     widget->sizePolicy().controlType() == QSizePolicy::ComboBox ||
+     widget->sizePolicy().controlType() == QSizePolicy::CheckBox) {
+  //     w > widget->sizeHint().width()) w = widget->sizeHint().width();
+    if(h > widget->sizeHint().height()) h = widget->sizeHint().height();
+  }
+  */
+  widget->resize(w,h);
+  //  layout()->addWidget(widget);
+  QPixmap pixmap = QPixmap::grabWidget(widget, 0, 0);
+  //  layout()->removeWidget(widget);
+  //  widget->setVisible(false);
+
+  QPainter p(this);
+  int y = (height() - pixmap.height()) / 2;
+  p.drawPixmap(0,y,pixmap);
+
+  if(iscontainer) {
+    
+    p.setPen(Qt::blue);
+    p.drawRect(0, 0, width()-1, height()-1);
+    p.setPen(QColor(150,150,200));
+    if(orientation == Qt::Vertical) {
+      p.drawLine(4, 2, 2, 4);
+      p.drawLine(4, 2, 6, 4);
+      p.drawLine(4, 2, 4, 12);
+      p.drawLine(4, 12, 2, 10);
+      p.drawLine(4, 12, 6, 10);
+    } else {
+      p.drawLine(2, 4, 4, 2);
+      p.drawLine(2, 4, 4, 6);
+      p.drawLine(2, 4 ,12, 4);
+      p.drawLine(12, 4, 10, 2);
+      p.drawLine(12, 4, 10, 6);
+    }
+    //p.setPen(QColor(128, 128, 128, 128));
+    //p.drawText(0, 10, elem.attribute("name", "Container"));
+  } else {
+    p.setPen(QColor(128, 128, 128, 128));
+    p.drawText(width() / 2 - 20, height() / 2 + 5, elem.attribute("name", "Widget"));
+  }
+}