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qTox/src/chatlog/chatline.h

118 lines
2.8 KiB
C++

/*
Copyright © 2014-2019 by The qTox Project Contributors
This file is part of qTox, a Qt-based graphical interface for Tox.
qTox is libre 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.
qTox 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 qTox. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <QPointF>
#include <QRectF>
#include <QVector>
#include <memory>
class ChatLog;
class ChatLineContent;
class QGraphicsScene;
class QStyleOptionGraphicsItem;
class QFont;
struct ColumnFormat
{
enum Policy
{
FixedSize,
VariableSize,
};
enum Align
{
Left,
Center,
Right,
};
ColumnFormat()
{
}
ColumnFormat(qreal s, Policy p, Align halign = Left)
: size(s)
, policy(p)
, hAlign(halign)
{
}
qreal size = 1.0;
Policy policy = VariableSize;
Align hAlign = Left;
};
using ColumnFormats = QVector<ColumnFormat>;
class ChatLine
{
public:
using Ptr = std::shared_ptr<ChatLine>;
ChatLine();
virtual ~ChatLine();
QRectF sceneBoundingRect() const;
void replaceContent(int col, ChatLineContent* lineContent);
void layout(qreal width, QPointF scenePos);
void moveBy(qreal deltaY);
void removeFromScene();
void addToScene(QGraphicsScene* scene);
void setVisible(bool visible);
void selectionCleared();
void selectionFocusChanged(bool focusIn);
void fontChanged(const QFont& font);
void reloadTheme();
int getColumnCount();
int getRow() const;
ChatLineContent* getContent(int col) const;
ChatLineContent* getContent(QPointF scenePos) const;
bool isOverSelection(QPointF scenePos);
// comparators
static bool lessThanBSRectTop(const ChatLine::Ptr& lhs, const qreal& rhs);
static bool lessThanBSRectBottom(const ChatLine::Ptr& lhs, const qreal& rhs);
static bool lessThanRowIndex(const ChatLine::Ptr& lhs, const ChatLine::Ptr& rhs);
protected:
friend class ChatLog;
QPointF mapToContent(ChatLineContent* c, QPointF pos);
void addColumn(ChatLineContent* item, ColumnFormat fmt);
void updateBBox();
void setRow(int idx);
void visibilityChanged(bool visible);
private:
int row = -1;
QVector<ChatLineContent*> content;
QVector<ColumnFormat> format;
qreal width = 100.0;
qreal columnSpacing = 15.0;
QRectF bbox;
bool isVisible = false;
};