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netsurf/frontends/qt/widget.cls.h

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/*
* Copyright 2023 Vincent Sanders <vince@netsurf-browser.org>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf 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; version 2 of the License.
*
* NetSurf 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/>.
*/
/**
* \file
* Implementation of netsurf widget for qt.
*/
#include <QWidget>
#include <QMenu>
extern "C" {
#include "netsurf/types.h"
#include "netsurf/content_type.h"
#include "netsurf/browser_window.h"
}
#include "qt/actions.cls.h"
class NS_Widget : public QWidget
{
Q_OBJECT
public:
NS_Widget(QWidget *parent, NS_Actions *actions, struct browser_window *bw);
QSize sizeHint() const override;
bool get_scroll(int *sx, int *sy);
nserror get_dimensions(int *width, int *height);
nserror invalidate(const struct rect *rect);
void set_pointer(enum gui_pointer_shape shape);
void setCaret(bool visible, int x, int y, int height);
public slots:
void setHorizontalScroll(int value);
void setVerticalScroll(int value);
protected:
void contextMenuEvent(QContextMenuEvent *event);
void focusOutEvent(QFocusEvent *event);
void keyPressEvent(QKeyEvent *event);
void mouseMoveEvent(QMouseEvent *event);
void mousePressEvent(QMouseEvent *event);
void mouseReleaseEvent(QMouseEvent *event);
void paintEvent(QPaintEvent *event);
void resizeEvent(QResizeEvent *event);
private:
/**
* map qt event modifiers to browser mouse state keyboard modifiers
*/
static void event_to_bms_modifiers(QMouseEvent *event, unsigned int &bms);
/**
* draw caret
*/
void redraw_caret(struct rect *clip, struct redraw_context *ctx);
/**
* advance caret animation to next frame
*/
static void next_caret_frame(void *p);
struct browser_window *m_bw;
NS_Actions *m_actions;
int m_xoffset;
int m_yoffset;
enum gui_pointer_shape m_pointer_shape; /**< current pointer shape */
QMenu *m_contextmenu;
QPointF m_press_pos; /**< position of last mouse press event */
unsigned int m_drag_state; /**< current drag state */
int m_caret_frame; /**< current caret frame 0 is not shown */
int m_caret_x; /**< x position of the caret */
int m_caret_y; /**< y position of the caret */
int m_caret_h; /**< height of the caret */
};