mirror of
https://invent.kde.org/graphics/okular
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346 lines
11 KiB
C++
346 lines
11 KiB
C++
/*
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SPDX-FileCopyrightText: 2007 Pino Toscano <pino@kde.org>
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Work sponsored by the LiMux project of the city of Munich:
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SPDX-FileCopyrightText: 2017 Klarälvdalens Datakonsult AB a KDAB Group company <info@kdab.com>
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SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef _OKULAR_FORMWIDGETS_H_
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#define _OKULAR_FORMWIDGETS_H_
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#include "core/area.h"
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#include "core/form.h"
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#include <KTextEdit>
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#include <KUrlRequester>
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#include <QCheckBox>
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#include <QComboBox>
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#include <QLineEdit>
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#include <QListWidget>
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#include <QPushButton>
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#include <QRadioButton>
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class ComboEdit;
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class QMenu;
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class QButtonGroup;
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class FormWidgetIface;
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class PageView;
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class PageViewItem;
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class RadioButtonEdit;
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class QEvent;
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namespace Okular
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{
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class Action;
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class FormField;
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class FormFieldButton;
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class FormFieldChoice;
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class FormFieldText;
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class FormFieldSignature;
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class Document;
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}
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struct RadioData {
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RadioData()
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{
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}
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QList<int> ids;
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QButtonGroup *group = nullptr;
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};
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class FormWidgetsController : public QObject
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{
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Q_OBJECT
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public:
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explicit FormWidgetsController(Okular::Document *doc);
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~FormWidgetsController() override;
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void signalAction(Okular::Action *action);
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void signalMouseUpAction(Okular::Action *action, Okular::FormField *form);
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void processScriptAction(Okular::Action *a, Okular::FormField *field, Okular::Annotation::AdditionalActionType type);
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void registerRadioButton(FormWidgetIface *fwButton, Okular::FormFieldButton *formButton);
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void dropRadioButtons();
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bool canUndo();
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bool canRedo();
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Okular::Document *document() const;
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static bool shouldFormWidgetBeShown(Okular::FormField *form);
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Q_SIGNALS:
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void changed(int pageNumber);
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void requestUndo();
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void requestRedo();
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void canUndoChanged(bool undoAvailable);
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void canRedoChanged(bool redoAvailable);
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void formTextChangedByWidget(int pageNumber, Okular::FormFieldText *form, const QString &newContents, int newCursorPos, int prevCursorPos, int prevAnchorPos);
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void formTextChangedByUndoRedo(int pageNumber, Okular::FormFieldText *form, const QString &contents, int cursorPos, int anchorPos);
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void formListChangedByWidget(int pageNumber, Okular::FormFieldChoice *form, const QList<int> &newChoices);
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void formListChangedByUndoRedo(int pageNumber, Okular::FormFieldChoice *form, const QList<int> &choices);
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void formComboChangedByWidget(int pageNumber, Okular::FormFieldChoice *form, const QString &newText, int newCursorPos, int prevCursorPos, int prevAnchorPos);
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void formComboChangedByUndoRedo(int pageNumber, Okular::FormFieldChoice *form, const QString &text, int cursorPos, int anchorPos);
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void formButtonsChangedByWidget(int pageNumber, const QList<Okular::FormFieldButton *> &formButtons, const QList<bool> &newButtonStates);
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void action(Okular::Action *action);
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void mouseUpAction(Okular::Action *action, Okular::FormField *form);
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void refreshFormWidget(Okular::FormField *form);
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private Q_SLOTS:
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void slotButtonClicked(QAbstractButton *button);
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void slotFormButtonsChangedByUndoRedo(int pageNumber, const QList<Okular::FormFieldButton *> &formButtons);
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private:
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friend class TextAreaEdit;
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friend class FormLineEdit;
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friend class FileEdit;
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friend class ListEdit;
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friend class ComboEdit;
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friend class SignatureEdit;
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QList<RadioData> m_radios;
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QHash<int, QAbstractButton *> m_buttons;
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Okular::Document *m_doc;
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};
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class FormWidgetFactory
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{
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public:
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static FormWidgetIface *createWidget(Okular::FormField *ff, PageView *pageView);
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};
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class FormWidgetIface
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{
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public:
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FormWidgetIface(QWidget *w, Okular::FormField *ff);
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virtual ~FormWidgetIface();
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FormWidgetIface(const FormWidgetIface &) = delete;
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FormWidgetIface &operator=(const FormWidgetIface &) = delete;
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Okular::NormalizedRect rect() const;
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void setWidthHeight(int w, int h);
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void moveTo(int x, int y);
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bool setVisibility(bool visible);
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void setCanBeFilled(bool fill);
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void setPageItem(PageViewItem *pageItem);
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PageViewItem *pageItem() const;
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void setFormField(Okular::FormField *field);
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Okular::FormField *formField() const;
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virtual void setFormWidgetsController(FormWidgetsController *controller);
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protected:
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virtual void slotRefresh(Okular::FormField *form);
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FormWidgetsController *m_controller;
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Okular::FormField *m_ff;
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private:
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QWidget *m_widget;
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PageViewItem *m_pageItem;
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};
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#define DECLARE_ADDITIONAL_ACTIONS \
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protected: \
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virtual void mousePressEvent(QMouseEvent *event) override; \
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virtual void mouseReleaseEvent(QMouseEvent *event) override; \
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virtual void focusInEvent(QFocusEvent *event) override; \
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virtual void focusOutEvent(QFocusEvent *event) override; \
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virtual void leaveEvent(QEvent *event) override; \
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virtual void enterEvent(QEnterEvent *event) override;
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class PushButtonEdit : public QPushButton, public FormWidgetIface
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{
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Q_OBJECT
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public:
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explicit PushButtonEdit(Okular::FormFieldButton *button, PageView *pageView);
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DECLARE_ADDITIONAL_ACTIONS
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};
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class CheckBoxEdit : public QCheckBox, public FormWidgetIface
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{
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Q_OBJECT
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public:
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explicit CheckBoxEdit(Okular::FormFieldButton *button, PageView *pageView);
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// reimplemented from FormWidgetIface
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void setFormWidgetsController(FormWidgetsController *controller) override;
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void doActivateAction();
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protected:
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void slotRefresh(Okular::FormField *form) override;
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DECLARE_ADDITIONAL_ACTIONS
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};
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class RadioButtonEdit : public QRadioButton, public FormWidgetIface
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{
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Q_OBJECT
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public:
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explicit RadioButtonEdit(Okular::FormFieldButton *button, PageView *pageView);
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// reimplemented from FormWidgetIface
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void setFormWidgetsController(FormWidgetsController *controller) override;
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DECLARE_ADDITIONAL_ACTIONS
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};
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class FormLineEdit : public QLineEdit, public FormWidgetIface
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{
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Q_OBJECT
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public:
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explicit FormLineEdit(Okular::FormFieldText *text, PageView *pageView);
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void setFormWidgetsController(FormWidgetsController *controller) override;
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bool event(QEvent *e) override;
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void contextMenuEvent(QContextMenuEvent *event) override;
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public Q_SLOTS:
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void slotHandleTextChangedByUndoRedo(int pageNumber, Okular::FormFieldText *textForm, const QString &contents, int cursorPos, int anchorPos);
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private Q_SLOTS:
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void slotChanged();
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protected:
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void slotRefresh(Okular::FormField *form) override;
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private:
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int m_prevCursorPos;
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int m_prevAnchorPos;
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bool m_editing;
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DECLARE_ADDITIONAL_ACTIONS
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};
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class TextAreaEdit : public KTextEdit, public FormWidgetIface
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{
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Q_OBJECT
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public:
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explicit TextAreaEdit(Okular::FormFieldText *text, PageView *pageView);
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~TextAreaEdit() override;
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void setFormWidgetsController(FormWidgetsController *controller) override;
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bool event(QEvent *e) override;
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public Q_SLOTS:
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void slotHandleTextChangedByUndoRedo(int pageNumber, Okular::FormFieldText *textForm, const QString &contents, int cursorPos, int anchorPos);
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void slotUpdateUndoAndRedoInContextMenu(QMenu *menu);
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private Q_SLOTS:
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void slotChanged();
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protected:
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void slotRefresh(Okular::FormField *form) override;
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private:
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int m_prevCursorPos;
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int m_prevAnchorPos;
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bool m_editing;
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DECLARE_ADDITIONAL_ACTIONS
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};
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class FileEdit : public KUrlRequester, public FormWidgetIface
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{
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Q_OBJECT
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public:
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explicit FileEdit(Okular::FormFieldText *text, PageView *pageView);
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void setFormWidgetsController(FormWidgetsController *controller) override;
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protected:
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bool eventFilter(QObject *obj, QEvent *event) override;
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private Q_SLOTS:
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void slotChanged();
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void slotHandleFileChangedByUndoRedo(int pageNumber, Okular::FormFieldText *form, const QString &contents, int cursorPos, int anchorPos);
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private:
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int m_prevCursorPos;
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int m_prevAnchorPos;
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DECLARE_ADDITIONAL_ACTIONS
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};
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class ListEdit : public QListWidget, public FormWidgetIface
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{
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Q_OBJECT
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public:
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explicit ListEdit(Okular::FormFieldChoice *choice, PageView *pageView);
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void setFormWidgetsController(FormWidgetsController *controller) override;
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private Q_SLOTS:
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void slotSelectionChanged();
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void slotHandleFormListChangedByUndoRedo(int pageNumber, Okular::FormFieldChoice *listForm, const QList<int> &choices);
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DECLARE_ADDITIONAL_ACTIONS
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};
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class ComboEdit : public QComboBox, public FormWidgetIface
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{
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Q_OBJECT
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public:
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explicit ComboEdit(Okular::FormFieldChoice *choice, PageView *pageView);
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void setFormWidgetsController(FormWidgetsController *controller) override;
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bool event(QEvent *e) override;
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void contextMenuEvent(QContextMenuEvent *event) override;
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private Q_SLOTS:
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void slotValueChanged();
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void slotHandleFormComboChangedByUndoRedo(int pageNumber, Okular::FormFieldChoice *comboForm, const QString &text, int cursorPos, int anchorPos);
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private:
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int m_prevCursorPos;
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int m_prevAnchorPos;
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DECLARE_ADDITIONAL_ACTIONS
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};
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class SignatureEdit : public QAbstractButton, public FormWidgetIface
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{
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Q_OBJECT
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public:
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explicit SignatureEdit(Okular::FormFieldSignature *signature, PageView *pageView);
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// This will be called when an item in signature panel is clicked. Calling it changes the
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// widget state. If this widget was visible prior to calling this then background
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// color will change and borders will remain otherwise visibility of this widget will change.
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// During the change all interactions will be disabled.
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void setDummyMode(bool set);
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protected:
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bool event(QEvent *e) override;
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void contextMenuEvent(QContextMenuEvent *event) override;
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void paintEvent(QPaintEvent *event) override;
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private Q_SLOTS:
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void slotViewProperties();
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void signUnsignedSignature();
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private:
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bool m_widgetPressed;
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bool m_dummyMode;
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bool m_wasVisible; // this will help in deciding whether or not to paint border for this widget
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DECLARE_ADDITIONAL_ACTIONS
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};
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#undef DECLARE_ADDITIONAL_ACTIONS
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#endif
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