nodeview: first attempt at filter dialog

app/widget/nodeview/CMakeLists.txt

@@ -21,6 +21,8 @@ set(OLIVE_SOURCES
   widget/nodeview/nodeviewcommon.h
   widget/nodeview/nodeviewedge.h
   widget/nodeview/nodeviewedge.cpp
+  widget/nodeview/nodeviewfilter.h
+  widget/nodeview/nodeviewfilter.cpp
   widget/nodeview/nodeviewitem.h
   widget/nodeview/nodeviewitem.cpp
   widget/nodeview/nodeviewitemwidgetproxy.h

app/widget/nodeview/nodeview.cpp

@@ -26,6 +26,7 @@
 #include "core.h"
 #include "nodeviewundo.h"
 #include "node/factory.h"
+#include "nodeviewfilter.h"
 #include "widget/menu/menushared.h"
 
 #define super HandMovableView
@@ -258,7 +259,7 @@ void NodeView::ItemsChanged()
 {
   QHash<NodeEdge *, NodeViewEdge *>::const_iterator i;
 
-  for (i=scene_.edge_map().begin();i!=scene_.edge_map().end();i++) {
+  for (i=scene_.edge_map().begin(); i!=scene_.edge_map().end(); i++) {
     i.value()->Adjust();
   }
 }
@@ -432,6 +433,11 @@ void NodeView::ShowContextMenu(const QPoint &pos)
 
   } else {
 
+    QAction* filters_action = m.addAction(tr("Filters..."));
+    connect(filters_action, &QAction::triggered, this, &NodeView::ContextMenuShowFiltersDialog);
+
+    m.addSeparator();
+
     Menu* direction_menu = new Menu(tr("Direction"), &m);
     m.addMenu(direction_menu);
 
@@ -515,6 +521,12 @@ void NodeView::ContextMenuLabelNode()
   }
 }
 
+void NodeView::ContextMenuShowFiltersDialog()
+{
+  NodeViewFilterDialog fd(this);
+  fd.exec();
+}
+
 void NodeView::PlaceNode(NodeViewItem *n, const QPointF &pos)
 {
   QRectF destination_rect = n->rect();

app/widget/nodeview/nodeview.h

@@ -146,6 +146,11 @@ private slots:
    */
   void ContextMenuLabelNode();
 
+  /**
+   * @brief Receiver that shows the filters dialog
+   */
+  void ContextMenuShowFiltersDialog();
+
 };
 
 OLIVE_NAMESPACE_EXIT

app/widget/nodeview/nodeviewfilter.cpp

@@ -0,0 +1,139 @@
+/***
+
+  Olive - Non-Linear Video Editor
+  Copyright (C) 2019 Olive Team
+
+  This program 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 3 of the License, or
+  (at your option) any later version.
+
+  This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+
+***/
+
+#include "nodeviewfilter.h"
+
+#include <QCheckBox>
+#include <QComboBox>
+#include <QDialogButtonBox>
+#include <QGroupBox>
+#include <QLayoutItem>
+#include <QPushButton>
+#include <QVBoxLayout>
+
+#define FILTER_COLUMN_COUNT 7
+
+OLIVE_NAMESPACE_ENTER
+
+NodeViewFilterDialog::NodeViewFilterDialog(QWidget *parent) :
+  QDialog(parent),
+  row_count_(0)
+{
+  setWindowTitle(tr("Configure Node Filters"));
+
+  QVBoxLayout* layout = new QVBoxLayout(this);
+
+  {
+    QGroupBox* filter_group = new QGroupBox();
+    filter_group->setTitle(tr("Filters"));
+
+    QVBoxLayout* filter_outer_layout = new QVBoxLayout(filter_group);
+    filter_layout_ = new QGridLayout();
+    filter_layout_->setMargin(0);
+    filter_outer_layout->addLayout(filter_layout_);
+    filter_outer_layout->addStretch();
+
+    layout->addWidget(filter_group);
+  }
+
+  plus_btn_ = new QPushButton(tr("+"));
+  plus_btn_->setFixedWidth(plus_btn_->sizeHint().height());
+  connect(plus_btn_, &QPushButton::clicked, this, &NodeViewFilterDialog::AppendRow);
+
+  AppendRow();
+
+  QDialogButtonBox* buttons = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel);
+  connect(buttons, &QDialogButtonBox::accepted, this, &QDialog::accept);
+  connect(buttons, &QDialogButtonBox::rejected, this, &QDialog::reject);
+  layout->addWidget(buttons);
+}
+
+void NodeViewFilterDialog::AppendRow()
+{
+  QCheckBox* enabled_check = new QCheckBox();
+  enabled_check->setChecked(true);
+  filter_layout_->addWidget(enabled_check, row_count_, 0);
+
+  QComboBox* showhide_combo = new QComboBox();
+  showhide_combo->addItem(tr("Show"));
+  showhide_combo->addItem(tr("Hide"));
+  filter_layout_->addWidget(showhide_combo, row_count_, 1);
+
+  QComboBox* type_combo = new QComboBox();
+  type_combo->addItem(tr("Any"));
+  type_combo->addItem(tr("Selected"));
+  filter_layout_->addWidget(type_combo, row_count_, 2);
+
+  QComboBox* from_combo = new QComboBox();
+  from_combo->addItem(tr("From Node"));
+  from_combo->addItem(tr("From Category"));
+  filter_layout_->addWidget(from_combo, row_count_, 3);
+
+  QComboBox* from_entry_combo = new QComboBox();
+  filter_layout_->addWidget(from_entry_combo, row_count_, 4);
+
+  QComboBox* to_entry_combo = new QComboBox();
+  filter_layout_->addWidget(to_entry_combo, row_count_, 5);
+
+  QPushButton* minus_btn = new QPushButton(tr("-"));
+  minus_btn->setFixedWidth(minus_btn->sizeHint().height());
+  connect(minus_btn, &QPushButton::clicked, this, &NodeViewFilterDialog::RemoveRowButtonClicked);
+  filter_layout_->addWidget(minus_btn, row_count_, 6);
+
+  row_count_++;
+
+  UpdateAddButtonPos();
+}
+
+void NodeViewFilterDialog::RemoveRowButtonClicked()
+{
+  for (int i=0;i<row_count_;i++) {
+    if (filter_layout_->itemAtPosition(i, FILTER_COLUMN_COUNT-1)->widget() == sender()) {
+      RemoveRow(i);
+      return;
+    }
+  }
+}
+
+void NodeViewFilterDialog::RemoveRow(int row)
+{
+  for (int i=0;i<FILTER_COLUMN_COUNT;i++) {
+    delete filter_layout_->itemAtPosition(row, i)->widget();
+  }
+
+  for (int j=row+1;j<row_count_;j++) {
+    for (int i=0;i<FILTER_COLUMN_COUNT;i++) {
+      QWidget* w = filter_layout_->itemAtPosition(j, i)->widget();
+
+      filter_layout_->addWidget(w, j - 1, i);
+    }
+  }
+
+  row_count_--;
+
+  UpdateAddButtonPos();
+}
+
+void NodeViewFilterDialog::UpdateAddButtonPos()
+{
+  filter_layout_->addWidget(plus_btn_, row_count_, FILTER_COLUMN_COUNT - 1);
+}
+
+OLIVE_NAMESPACE_EXIT

app/widget/nodeview/nodeviewfilter.h

@@ -0,0 +1,56 @@
+/***
+
+  Olive - Non-Linear Video Editor
+  Copyright (C) 2019 Olive Team
+
+  This program 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 3 of the License, or
+  (at your option) any later version.
+
+  This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+
+***/
+
+#ifndef NODEVIEWFILTERDIALOG_H
+#define NODEVIEWFILTERDIALOG_H
+
+#include <QDialog>
+#include <QGridLayout>
+
+#include "node/node.h"
+
+OLIVE_NAMESPACE_ENTER
+
+class NodeViewFilterDialog : public QDialog
+{
+public:
+  NodeViewFilterDialog(QWidget* parent = nullptr);
+
+private:
+  void RemoveRow(int row);
+
+  void UpdateAddButtonPos();
+
+  int row_count_;
+
+  QGridLayout* filter_layout_;
+
+  QPushButton* plus_btn_;
+
+private slots:
+  void AppendRow();
+
+  void RemoveRowButtonClicked();
+
+};
+
+OLIVE_NAMESPACE_EXIT
+
+#endif // NODEVIEWFILTERDIALOG_H