First attempt on an editor framework.

1 files changed, 198 insertions, 0 deletions

diff --git a/editor/macrowindow.cc b/editor/macrowindow.cc
new file mode 100644
index 0000000..761f107
--- /dev/null
+++ b/editor/macrowindow.cc
@@ -0,0 +1,198 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ *            macrowindow.cc
+ *
+ *  Fri Jul  4 12:29:41 CEST 2008
+ *  Copyright 2008 Bent Bisballe Nyeng
+ *  deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ *  This file is part of Pracro.
+ *
+ *  Pracro is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Pracro is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with Pracro; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
+ */
+#include "macrowindow.h"
+
+#include <QLabel>
+#include <QBoxLayout>
+#include <QVBoxLayout>
+#include <QHBoxLayout>
+
+#include <math.h>
+
+#include "widget.h"
+
+MacroWindow::MacroWindow(Qt::Orientation orientation)
+  : QFrame()
+{
+  this->orientation = orientation;
+  setAcceptDrops(true);
+  if(orientation == Qt::Horizontal) {
+    setLayout(new QHBoxLayout());
+  } else {
+    setLayout(new QVBoxLayout());
+  }
+  //  layout()->setSpacing(0);
+  //  layout()->setContentsMargins(2,2,2,2);
+  show();
+  dragObject = NULL;
+
+  setFrameStyle(QFrame::Box | QFrame::Plain);
+  QPalette pal;
+  pal.setColor(QPalette::Foreground, Qt::blue);
+  setPalette(pal);
+}
+
+void MacroWindow::dragEnterEvent(QDragEnterEvent *event)
+{
+  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 MacroWindow::dragLeaveEvent(QDragLeaveEvent *)
+{
+  if(dragObject) delete dragObject;
+  dragObject = NULL;
+}
+
+void MacroWindow::dragMoveEvent(QDragMoveEvent *event)
+{
+  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 MacroWindow::dropEvent(QDropEvent *event)
+{
+  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 MacroWindow(Qt::Horizontal);
+    else if(type == "vertical") widget = new MacroWindow(Qt::Vertical);
+    else widget = new Widget(type);
+
+    ((QBoxLayout*)layout())->insertWidget(idx, widget);
+    delete dragObject;
+    dragObject = NULL;
+    event->acceptProposedAction();
+  }
+}
+
+QWidget *MacroWindow::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 MacroWindow::mousePressEvent(QMouseEvent *event)
+{
+  if(event->button() == Qt::LeftButton) {
+    
+    QDrag *drag = new QDrag(this);
+    drag->setPixmap(QPixmap("drag.png"));
+    
+    QMimeData *mimedata = new QMimeData();
+    
+    if(orientation == Qt::Horizontal) {
+      mimedata->setData("pracro/widget", "horizontal");
+    } else {
+      mimedata->setData("pracro/widget", "vertical");
+    }
+    drag->setMimeData(mimedata);
+    
+    QWidget *parent = parentWidget();
+    if(parent) {
+      parent->layout()->removeWidget(this);
+      setVisible(false);
+      drag->exec();
+    }
+  }
+}