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mirror of https://invent.kde.org/network/falkon.git synced 2024-11-11 17:42:10 +01:00
falkonOfficial/src/lib/tools/combotabbar.h
nowrep d17584d944 [ComboTabBar] Rework tab scrolling animation
Using OutQuad easing curve and restarting animation on new wheel events
make the scrolling feel a lot better.

Wheel scrolling behavior:
horizontal wheel event: slower scrolling
vertical wheel event with control modifier: faster scrolling
vertical wheel event with other(+no) modifiers: fast scrolling
2014-02-12 16:28:12 +01:00

323 lines
9.0 KiB
C++

/* ============================================================
* QupZilla - WebKit based browser
* Copyright (C) 2013-2014 S. Razi Alavizadeh <s.r.alavizadeh@gmail.com>
*
* 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 COMBOTABBAR_H
#define COMBOTABBAR_H
#include "qz_namespace.h"
#include <QTabBar>
#include <QScrollBar>
#include <QAbstractButton>
#include <QEasingCurve>
#include <QStyleOption>
class QScrollArea;
class QPropertyAnimation;
class QHBoxLayout;
class TabBarScrollWidget;
class TabBarHelper;
class ToolButton;
class QT_QUPZILLA_EXPORT ComboTabBar : public QWidget
{
Q_OBJECT
Q_PROPERTY(int currentIndex READ currentIndex WRITE setCurrentIndex NOTIFY currentChanged)
Q_PROPERTY(int count READ count)
friend class TabBarHelper;
public:
enum SizeType {
PinnedTabWidth,
ActiveTabMinimumWidth,
NormalTabMinimumWidth,
NormalTabMaximumWidth,
OverflowedTabWidth,
ExtraReservedWidth
};
explicit ComboTabBar(QWidget* parent = 0);
int addTab(const QString &text);
int addTab(const QIcon &icon, const QString &text);
int insertTab(int index, const QString &text);
int insertTab(int index, const QIcon &icon, const QString &text, bool pinned = false);
void removeTab(int index);
void moveTab(int from, int to);
bool isTabEnabled(int index) const;
void setTabEnabled(int index, bool enabled);
QColor tabTextColor(int index) const;
void setTabTextColor(int index, const QColor &color);
QRect tabRect(int index) const;
int tabAt(const QPoint &pos) const;
int mainTabBarCurrentIndex() const;
int currentIndex() const;
int count() const;
void setDrawBase(bool drawTheBase);
bool drawBase() const;
Qt::TextElideMode elideMode() const;
void setElideMode(Qt::TextElideMode elide);
QString tabText(int index) const;
void setTabText(int index, const QString &text);
void setTabToolTip(int index, const QString &tip);
QString tabToolTip(int index) const;
bool tabsClosable() const;
void setTabsClosable(bool closable);
void setTabButton(int index, QTabBar::ButtonPosition position, QWidget* widget);
QWidget* tabButton(int index, QTabBar::ButtonPosition position) const;
QTabBar::SelectionBehavior selectionBehaviorOnRemove() const;
void setSelectionBehaviorOnRemove(QTabBar::SelectionBehavior behavior);
bool expanding() const;
void setExpanding(bool enabled);
bool isMovable() const;
void setMovable(bool movable);
bool documentMode() const;
void setDocumentMode(bool set);
int pinnedTabsCount() const;
int normalTabsCount() const;
bool isPinned(int index) const;
void setMaxVisiblePinnedTab(int max);
void setObjectName(const QString &name);
void setMouseTracking(bool enable);
void insertCloseButton(int index);
void setCloseButtonsToolTip(const QString &tip);
void enableBluredBackground(bool enable);
QTabBar::ButtonPosition iconButtonPosition();
QTabBar::ButtonPosition closeButtonPosition();
bool validIndex(int index) const;
void setCurrentNextEnabledIndex(int offset);
bool usesScrollButtons() const;
void setUsesScrollButtons(bool useButtons);
void addMainBarWidget(QWidget* widget, Qt::Alignment align, int stretch = 0, Qt::Alignment layoutAlignment = 0);
public slots:
void setUpLayout();
void ensureVisible(int index = -1, int xmargin = -1);
void setCurrentIndex(int index);
private slots:
void setMinimumWidths();
void slotCurrentChanged(int index);
void slotTabCloseRequested(int index);
void slotTabMoved(int from, int to);
void closeTabFromButton();
void enableUpdates();
void updateTabBars();
protected:
int mainTabBarWidth() const;
int pinTabBarWidth() const;
void wheelEvent(QWheelEvent* event);
void showEvent(QShowEvent* event);
void enterEvent(QEvent* event);
void leaveEvent(QEvent* event);
void resizeEvent(QResizeEvent* event);
bool eventFilter(QObject* obj, QEvent* ev);
virtual int comboTabBarPixelMetric(SizeType sizeType) const;
virtual QSize tabSizeHint(int index, bool fast = false) const;
virtual void tabInserted(int index);
virtual void tabRemoved(int index);
private:
TabBarHelper* localTabBar(int index = -1) const;
int toLocalIndex(int globalIndex) const;
inline TabBarHelper* mainTabBar() { return m_mainTabBar; }
void updatePinnedTabBarVisibility();
QHBoxLayout* m_mainLayout;
TabBarHelper* m_mainTabBar;
TabBarHelper* m_pinnedTabBar;
TabBarScrollWidget* m_mainTabBarWidget;
TabBarScrollWidget* m_pinnedTabBarWidget;
QString m_closeButtonsToolTip;
bool m_mainBarOverFlowed;
int m_dragOffset;
bool m_usesScrollButtons;
signals:
void overFlowChanged(bool overFlow);
void currentChanged(int index);
void tabCloseRequested(int index);
void tabMoved(int from, int to);
void scrollBarValueChanged(int value);
};
class QT_QUPZILLA_EXPORT TabBarHelper : public QTabBar
{
Q_OBJECT
public:
explicit TabBarHelper(ComboTabBar* comboTabBar);
void setTabButton(int index, QTabBar::ButtonPosition position, QWidget* widget);
QSize tabSizeHint(int index) const;
QSize baseClassTabSizeHint(int index) const;
bool isActiveTabBar();
void setActiveTabBar(bool activate);
void removeTab(int index);
void setScrollArea(QScrollArea* scrollArea);
void useFastTabSizeHint(bool enabled);
bool isDisplayedOnViewPort(int globalLeft, int globalRight);
void enableBluredBackground(bool enable);
public slots:
void setCurrentIndex(int index);
private slots:
void resetDragState();
private:
void initStyleBaseOption(QStyleOptionTabBarBaseV2* optTabBase, QTabBar* tabbar, QSize size);
bool event(QEvent* ev);
void paintEvent(QPaintEvent* event);
void mousePressEvent(QMouseEvent* event);
void mouseReleaseEvent(QMouseEvent* event);
ComboTabBar* m_comboTabBar;
QScrollArea* m_scrollArea;
int m_pressedIndex;
int m_pressedGlobalX;
bool m_dragInProgress;
bool m_activeTabBar;
bool m_useFastTabSizeHint;
bool m_bluredBackground;
};
class QT_QUPZILLA_EXPORT TabScrollBar : public QScrollBar
{
Q_OBJECT
public:
explicit TabScrollBar(QWidget* parent = 0);
~TabScrollBar();
void animateToValue(int to, QEasingCurve::Type type = QEasingCurve::OutQuad);
private:
QPropertyAnimation* m_animation;
};
class QT_QUPZILLA_EXPORT TabBarScrollWidget : public QWidget
{
Q_OBJECT
public:
explicit TabBarScrollWidget(QTabBar* tabBar, QWidget* parent = 0);
void addLeftWidget(QWidget* widget, int stretch = 0, Qt::Alignment alignment = 0);
void addRightWidget(QWidget* widget, int stretch = 0, Qt::Alignment alignment = 0);
QTabBar* tabBar();
QScrollArea* scrollArea();
TabScrollBar* scrollBar();
void scrollByWheel(QWheelEvent* event);
bool usesScrollButtons() const;
void setUsesScrollButtons(bool useButtons);
bool isOverflowed() const;
int tabAt(const QPoint &pos) const;
void setContainersName(const QString &name);
void enableBluredBackground(bool enable);
public slots:
void ensureVisible(int index = -1, int xmargin = 132);
void scrollToLeft(int n = 5, QEasingCurve::Type type = QEasingCurve::OutQuad);
void scrollToRight(int n = 5, QEasingCurve::Type type = QEasingCurve::OutQuad);
void scrollToLeftEdge();
void scrollToRightEdge();
void setUpLayout();
private slots:
void scrollBarValueChange();
void overFlowChanged(bool overflowed);
void scrollStart();
private:
bool eventFilter(QObject* obj, QEvent* ev);
void mouseMoveEvent(QMouseEvent* event);
QTabBar* m_tabBar;
QScrollArea* m_scrollArea;
TabScrollBar* m_scrollBar;
QHBoxLayout* m_leftLayout;
QHBoxLayout* m_rightLayout;
ToolButton* m_rightScrollButton;
ToolButton* m_leftScrollButton;
QWidget* m_leftContainer;
QWidget* m_rightContainer;
bool m_usesScrollButtons;
bool m_bluredBackground;
int m_totalDeltas;
};
// Class for close button on tabs
// * taken from qtabbar.cpp
class CloseButton : public QAbstractButton
{
Q_OBJECT
public:
CloseButton(QWidget* parent = 0);
QSize sizeHint() const;
QSize minimumSizeHint() const;
void enterEvent(QEvent* event);
void leaveEvent(QEvent* event);
void paintEvent(QPaintEvent* event);
};
#endif // COMBOTABBAR_H