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QtWheel.hh
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48 \*===========================================================================*/
49
50
51
52 //=============================================================================
53 //
54 // CLASS QWheel
55 //
56 //=============================================================================
57
58 #ifndef ACG_QT_WHEEL_HH
59 #define ACG_QT_WHEEL_HH
60
61
62 //== INCLUDES =================================================================
63
64 #include <QPalette>
65 #include <QFrame>
66 #include <QMouseEvent>
67 #include <QPixmap>
68 #include <QKeyEvent>
69 #include <QResizeEvent>
70 #include <QPaintEvent>
71
72 #include "../Config/ACGDefines.hh"
73
74
75 //== FORWARDDECLARATIONS ======================================================
76
77 class QPaintEvent;
78 class QMouseEvent;
79 class QPainter;
80
81
82 //== NAMESPACES ===============================================================
83
84
85 namespace ACG {
86 namespace QtWidgets {
87
88
89 //== CLASS DEFINITION =========================================================
90
91
107 class ACGDLLEXPORT QtWheel : public QFrame
108 {
109 Q_OBJECT
110 public:
111
113 enum Orientation { Horizontal, Vertical };
114
115 //
116 // CONSTRUCTORS
117 //
118
120 QtWheel(QWidget* _parent=0,
121 const char* _name=0,
122 Orientation _orientation = Horizontal);
123
125 virtual ~QtWheel();
126
127
128 //
129 // METHODS
130 //
131
133 int ticks() const { return ticks_; }
135 void setTicks(int _number) {
136 ticks_=_number; redrawPixmap(); repaint();
137 }
138
140 double angle() const { return angle_; }
142 void setAngle(double _angle) {
143 angle_=_angle; lastAngle_=0.0; redrawPixmap(); repaint();
144 }
150 double diffAngle() const { return angle_-lastAngle_; }
151
153 bool marker() const { return marker_; }
155 void setMarker(bool _b) {
156 marker_=_b; redrawPixmap(); repaint();
157 }
158
160 Orientation orientation() const;
162 void setOrientation(Orientation _orientation) {
163 orientation_=_orientation; redrawPixmap(); repaint();
164 }
165
167 bool draggingWheel() const { return dragging_; }
168
175 void setTracking(bool _b) { tracking_=_b; }
177 bool tracking() const { return tracking_; }
178
186 void setGear(double _g) { gear_=_g; }
188 double gear() const { return gear_; }
189
191 virtual QSizePolicy sizePolicy() const;
193 virtual QSize sizeHint() const;
194
203 static double clip(double _angle);
204
206 static double deg(double _angle);
207
208 signals:
212 void angleChangedTo(double _angle);
223 void angleChangedBy(double _angle);
224
229 void gearUp();
231 void gearDown();
232
234 void hideWheel();
235
236 protected:
238 virtual void mousePressEvent(QMouseEvent*);
240 virtual void mouseReleaseEvent(QMouseEvent*);
242 virtual void mouseMoveEvent(QMouseEvent*);
244 virtual void mouseDoubleClickEvent(QMouseEvent*);
246 virtual void keyPressEvent(QKeyEvent*);
248 virtual void keyReleaseEvent(QKeyEvent*);
249
251 virtual void resizeEvent(QResizeEvent*);
253 virtual void paintEvent(QPaintEvent*);
255 virtual void drawContents(QPainter*) {};
256
257
259 virtual void redrawPixmap();
260
261 private slots:
262 void slotCustomContextMenuRequested ( const QPoint & pos );
263
264 private:
265
267 QtWheel(const QtWheel&);
269 QtWheel& operator=(const QtWheel&);
270
272 double turn(const QPoint& _pos);
273 void updateMenu();
274 void shrinkRect(QRect&, int, int);
275
276 double angle_;
277 double lastAngle_;
278 int size_;
279
280 double gear_;
281 int gearShift_;
282
283 Orientation orientation_;
284
285 int ticks_;
286 bool marker_;
287
288 QPoint pos_;
289 bool dragging_;
290 bool tracking_;
291
292 QPalette palette_;
293 QPixmap pixmap_;
294 };
295
296 //=============================================================================
297 } // namespace QtWidgets
298 } // namespace ACG
299 //=============================================================================
300 #endif // ACG_QWHEEL_HH defined
301 //=============================================================================
302
ACG::QtWidgets::QtWheel::ticks
int ticks() const
get number of ticks on the wheel
Definition: QtWheel.hh:133
ACG::QtWidgets::QtWheel::setGear
void setGear(double _g)
Definition: QtWheel.hh:186
ACG::QtWidgets::QtWheel
Definition: QtWheel.hh:107
ACG::QtWidgets::QtWheel::gear
double gear() const
How fast does angle() change when the wheel is turned? (see above)
Definition: QtWheel.hh:188
ACG
Namespace providing different geometric functions concerning angles.
Definition: DBSCANT.cc:51
ACG::QtWidgets::QtWheel::setAngle
void setAngle(double _angle)
set current angle of the wheel (radiants, unbounded, cf. clip())
Definition: QtWheel.hh:142
ACG::QtWidgets::QtWheel::tracking
bool tracking() const
Is tracking on?
Definition: QtWheel.hh:177
ACG::QtWidgets::QtWheel::marker
bool marker() const
Are there markers on the wheel?
Definition: QtWheel.hh:153
ACG::QtWidgets::QtWheel::angle_
double angle_
current angle of the wheel
Definition: QtWheel.hh:276
ACG::QtWidgets::QtWheel::pixmap_
QPixmap pixmap_
pixmap of the wheel
Definition: QtWheel.hh:293
ACG::QtWidgets::QtWheel::ticks_
int ticks_
number of ticks on the wheel
Definition: QtWheel.hh:285
ACG::QtWidgets::QtWheel::gearShift_
int gearShift_
click-shifted gear by 2^gearShift_
Definition: QtWheel.hh:281
ACG::QtWidgets::QtWheel::draggingWheel
bool draggingWheel() const
Is the user currently dragging the wheel whith the mouse?
Definition: QtWheel.hh:167
ACG::QtWidgets::QtWheel::gear_
double gear_
speed of revolution
Definition: QtWheel.hh:280
ACG::QtWidgets::QtWheel::size_
int size_
size of wheel in pixels
Definition: QtWheel.hh:278
ACG::QtWidgets::QtWheel::angle
double angle() const
get current angle of the wheel (radiants, unbounded, cf. clip())
Definition: QtWheel.hh:140
ACG::QtWidgets::QtWheel::setTicks
void setTicks(int _number)
set _number of ticks on the wheel (default: 36)
Definition: QtWheel.hh:135
ACG::QtWidgets::QtWheel::setMarker
void setMarker(bool _b)
enable/disable markers on the wheel
Definition: QtWheel.hh:155
ACG::QtWidgets::QtWheel::dragging_
bool dragging_
currently dragging the slider?
Definition: QtWheel.hh:289
ACG::QtWidgets::QtWheel::palette_
QPalette palette_
color group
Definition: QtWheel.hh:292
ACG::QtWidgets::QtWheel::orientation_
Orientation orientation_
orientation of the widget
Definition: QtWheel.hh:283
ACG::QtWidgets::QtWheel::marker_
bool marker_
should ticks be marked by colors?
Definition: QtWheel.hh:286
ACG::QtWidgets::QtWheel::diffAngle
double diffAngle() const
Definition: QtWheel.hh:150
ACG::QtWidgets::QtWheel::setOrientation
void setOrientation(Orientation _orientation)
set orientation
Definition: QtWheel.hh:162
ACG::QtWidgets::QtWheel::drawContents
virtual void drawContents(QPainter *)
reimplemented
Definition: QtWheel.hh:255
ACG::QtWidgets::QtWheel::tracking_
bool tracking_
tracking on?
Definition: QtWheel.hh:290
ACG::QtWidgets::QtWheel::pos_
QPoint pos_
recent mouse position
Definition: QtWheel.hh:288
ACG::QtWidgets::QtWheel::lastAngle_
double lastAngle_
last angle, depends on tracking_
Definition: QtWheel.hh:277
ACG::QtWidgets::QtWheel::setTracking
void setTracking(bool _b)
Definition: QtWheel.hh:175
ACG::QtWidgets::QtWheel::Orientation
Orientation
Orientation of the widget.
Definition: QtWheel.hh:113