Initial commit

Lts/Plugins/PresentationManagement/Gui/Script/Common/topic_designer.h

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+/**
+  * @RDE_HEADER@
+  * Topic Designer for the Script Editor - Set Geometry & Z-Index, delete Topics, etc.
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  *
+  * Created by Mike Wille, SLSE, 2017-06-09
+  */
+
+#pragma once
+
+#include <Plugins/PresentationManagement/Gui/Script/Common/preguiscriptcommon_export.h>
+#include <TopicEditorBase/topic_editor_utils.h>
+
+#include <QWidget>
+#include <QVector>
+#include <QLinkedList>
+#include <QPointer>
+#include <QScrollArea>
+
+
+namespace PresentationManagement
+{
+
+class PREGUISCRIPTCOMMON_EXPORT TopicDesigner: public QWidget
+{
+  Q_OBJECT
+
+public:
+  enum class HandleType
+  {
+    None, Whole,
+    TopLeft, TopCenter, TopRight,
+    CenterLeft, CenterRight,
+    BottomLeft, BottomCenter, BottomRight
+  };
+
+  explicit TopicDesigner(QWidget *parent = nullptr, QWidget* previewWidget = nullptr);
+  ~TopicDesigner();
+
+  void loadTopicList(const QVector<TopicEditorBase::TopicData> &topicsList); // also clears
+  QVector<TopicEditorBase::TopicData> exportTopicList() const;
+  void selectTopic(int topicId);
+  TopicEditorBase::TopicData &selectedTopicData() noexcept(false);
+  void setTopicData(const TopicEditorBase::TopicData &data);
+
+private:
+  enum class Affection { x, y, w, h, Whole, };
+
+  void paintEvent(QPaintEvent *event) override;
+  void mouseMoveEvent(QMouseEvent *event) override;
+  void mousePressEvent(QMouseEvent *event) override;
+  void mouseReleaseEvent(QMouseEvent *event) override;
+  void keyPressEvent(QKeyEvent *event) override;
+  int heightForWidth(int width) const override;
+
+  void paintSelectedTopicItem(QPainter *p, const TopicEditorBase::TopicData &data);
+  QRect handleRect(const TopicEditorBase::TopicData &data, const HandleType &ht);
+  QRect topicItemRect(const TopicEditorBase::TopicData &data);
+
+  bool checkConstraints(TopicEditorBase::TopicData &selected);
+  void setCursorFromHandleType(const HandleType &ht);
+  double oneWidthPixelInPercent();
+  double oneHeightPixelInPercent();
+
+  void unselect();
+  void findSelection(const QPoint &pos); // looks for Topic(s) on the clicked position and selects those Topics
+  void internalSelectTopic(int topicId);
+
+  void setValues(const TopicEditorBase::TopicData &data, const QPoint &pos);
+  void affect(TopicEditorBase::TopicData &selected, const Affection &affection, const QPoint &pos);
+  void deleteTopicItem(const TopicEditorBase::TopicData &data);
+
+public slots:
+  void incIndex(const TopicEditorBase::TopicData &selected);
+  void decIndex(const TopicEditorBase::TopicData &selected);
+  void toFront(const TopicEditorBase::TopicData &selected);
+  void toBack(const TopicEditorBase::TopicData &selected);
+
+signals:
+  void deleteTopicItem(int topicId);
+  void topicSelected(int topicId);
+  void unselected();
+  void changesMade();
+
+private:
+  QLinkedList<TopicEditorBase::TopicData> m_topicDataList;
+  int m_selectedTopicId; // must be inside the list....
+  int m_lowestImportIndex;
+
+  HandleType m_currentResizeHandle;
+  HandleType m_resizeHandleActive; // saves us code dups
+  QPointF m_wholeOrgPos;
+  QPointer<QWidget> m_drawWidgetPreviewContent;
+  QScrollArea *m_scrollArea{nullptr};
+
+};
+
+} // namespace PresentationManagement