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Plasma

panelview.h

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00001 /*
00002 *   Copyright 2007 by Matt Broadstone <mbroadst@kde.org>
00003 *   Copyright 2007 by Robert Knight <robertknight@gmail.com>
00004 *
00005 *   This program is free software; you can redistribute it and/or modify
00006 *   it under the terms of the GNU Library General Public License version 2, 
00007 *   or (at your option) any later version.
00008 *
00009 *   This program is distributed in the hope that it will be useful,
00010 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
00011 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012 *   GNU General Public License for more details
00013 *
00014 *   You should have received a copy of the GNU Library General Public
00015 *   License along with this program; if not, write to the
00016 *   Free Software Foundation, Inc.,
00017 *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
00018 */
00019 
00020 #ifndef PLASMA_PANELVIEW_H
00021 #define PLASMA_PANELVIEW_H
00022 
00023 #include <QList>
00024 
00025 #include <KConfigGroup>
00026 
00027 #include <Plasma/Plasma>
00028 #include <Plasma/View>
00029 
00030 #ifdef Q_WS_X11
00031 #include <X11/Xlib.h>
00032 #include <fixx11h.h>
00033 #endif
00034 
00035 #ifdef Q_WS_WIN
00036 #include <windows.h>
00037 #include <shellapi.h>
00038 #endif
00039 
00040 class QWidget;
00041 class QTimeLine;
00042 class QTimer;
00043 
00044 class GlowBar;
00045 
00046 namespace Plasma
00047 {
00048     class Containment;
00049     class Corona;
00050     class Svg;
00051 }
00052 
00053 class PanelController;
00054 
00055 class PanelAppletOverlay;
00056 
00057 class PanelView : public Plasma::View
00058 {
00059     Q_OBJECT
00060 public:
00061 
00062     enum VisibilityMode {
00063         NormalPanel = 0,
00064         AutoHide,
00065         LetWindowsCover
00066     };
00067 
00072     explicit PanelView(Plasma::Containment *panel, int id = 0, QWidget *parent = 0);
00073     ~PanelView();
00074 
00078     Plasma::Location location() const;
00079 
00083     VisibilityMode visibilityMode() const;
00084 
00088     Plasma::Corona *corona() const;
00089 
00090     /*
00091      * @return the offset of the panel from the left screen edge
00092      */
00093     int offset() const;
00094 
00098     Qt::Alignment alignment() const;
00099 
00103     void pinchContainment(const QRect &screenGeometry);
00104 #ifdef Q_WS_X11
00105 
00108     Window unhideTrigger() { return m_unhideTrigger; }
00109 #endif
00110 
00114     bool hintOrUnhide(const QPoint &point, bool dueToDnd = false);
00115 
00119     QRect unhideHintGeometry() const;
00120 
00124     void unhintHide();
00125 
00126 public Q_SLOTS:
00130     void unhide(bool destroyTrigger);
00131 
00135     void pinchContainmentToCurrentScreen();
00136 
00146     void setOffset(int newOffset);
00147 
00153     void setAlignment(Qt::Alignment align);
00154 
00159     void setLocation(Plasma::Location location);
00160 
00165     void setVisibilityMode(PanelView::VisibilityMode mode);
00166 
00171     void recreateUnhideTrigger();
00172 
00173 protected:
00174     void updateStruts();
00175     void moveEvent(QMoveEvent *event);
00176     void resizeEvent(QResizeEvent *event);
00177     void leaveEvent(QEvent *event);
00178     void drawBackground(QPainter * painter, const QRectF & rect);
00179     void paintEvent(QPaintEvent *event);
00180     bool event(QEvent *event);
00181     void dragEnterEvent(QDragEnterEvent *event);
00182     void dragMoveEvent(QDragMoveEvent *event);
00183     void dragLeaveEvent(QDragLeaveEvent *event);
00184     void dropEvent(QDropEvent *event);
00185 
00186 private:
00187     void createUnhideTrigger();
00188     void destroyUnhideTrigger();
00189     bool shouldHintHide() const;
00190     Qt::Alignment alignmentFilter(Qt::Alignment align) const;
00191     bool isHorizontal() const;
00192     QTimeLine *timeLine();
00193     void positionSpacer(const QPoint pos);
00194     void startAutoHide();
00195     bool hasPopup();
00196 
00197 #ifdef Q_WS_WIN
00198     bool registerAccessBar(bool fRegister);
00199     void appBarQuerySetPos(LPRECT lprc);
00200     void appBarCallback(WPARAM message, LPARAM lParam);
00201     void appBarPosChanged();
00202     bool winEvent(MSG *message, long *result);
00203     APPBARDATA abd;
00204 #endif
00205 
00206 private Q_SLOTS:
00207     void togglePanelController();
00208     void edittingComplete();
00209     void animateHide(qreal);
00210     void panelDeleted();
00211     void hideMousePoll();
00212     void unhideHintMousePoll();
00213     void resetTriggerEnteredSuppression();
00214 
00219     void updatePanelGeometry();
00220 
00221 private:
00222     Plasma::Svg *m_background;
00223     PanelController *m_panelController;
00224     QList<PanelAppletOverlay*> m_moveOverlays;
00225     GlowBar *m_glowBar;
00226     QTimer *m_mousePollTimer;
00227     QTimeLine *m_timeLine;
00228     QGraphicsWidget *m_spacer;
00229     int m_spacerIndex;
00230 
00231     int m_offset;
00232     Qt::Alignment m_alignment;
00233 #ifdef Q_WS_X11
00234     Window m_unhideTrigger;
00235     QRect m_triggerZone;
00236     QRect m_unhideTriggerGeom;
00237 #endif
00238 
00239     QSizeF m_lastMin;
00240     QSizeF m_lastMax;
00241     VisibilityMode m_visibilityMode;
00242     int m_lastSeenSize;
00243     bool m_lastHorizontal : 1;
00244 
00245     bool m_editting : 1;
00246     bool m_firstPaint : 1;
00247     bool m_triggerEntered : 1;
00248 };
00249 
00250 #endif
00251 

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