repos
/
kde.examples
/ annotate_shade
summary
|
shortlog
|
log
|
tree
|
commit
|
commitdiff
|
headdiff
|
annotate
|
headblob
|
headfilediff
|
filehistory
normal
|
plain
|
shade
|
zebra
initial import
Annotate for file src/mandelbrot/mandelbrotwidget.lisp
2009-04-02 tobias
1
(in-package :kde.examples)
22:16:06 '
2
(declaim (optimize (debug 3)))
'
3
'
4
(defun zoom-in-factor ()
'
5
0.8)
'
6
'
7
(defun zoom-out-factor ()
'
8
(/ (zoom-in-factor)))
'
9
'
10
(defclass mandelbrotwidget (qt:widget)
'
11
((pixmap :accessor pixmap :initform nil)
'
12
(pixmap-scale :accessor pixmap-scale)
'
13
(pixmap-offset :accessor pixmap-offset)
'
14
(center :accessor center :initform #C(-0.5d0 0d0))
'
15
(scale :accessor scale :initform 0.007d0)
'
16
(update-pixmap-slot :accessor update-pixmap-slot)
'
17
(render :accessor render-thread)
'
18
(last-drag-pos :accessor last-drag-pos :initform nil))
'
19
(:metaclass cxx:class))
'
20
'
21
(defun update-pixmap (mandelbrotwidget image scale)
'
22
(when (null (last-drag-pos mandelbrotwidget))
'
23
(setf (pixmap mandelbrotwidget)
'
24
(qt:pixmap.from-image image))
'
25
(setf (pixmap-offset mandelbrotwidget) #c(0 0))
'
26
(setf (pixmap-scale mandelbrotwidget) scale)
'
27
(cxx:update mandelbrotwidget)))
'
28
'
29
(defparameter *render-control* (make-instance 'render-control))
'
30
(defun setup-slot (mandelbrotwidget)
'
31
(setf (update-pixmap-slot mandelbrotwidget)
'
32
(qt:make-slot #'(lambda (image scale)
'
33
(update-pixmap mandelbrotwidget image scale))
'
34
(mapcar #'find-class
'
35
'(qt:image double-float))))
'
36
(qt:connect (done-signal *render-control*)
'
37
(update-pixmap-slot mandelbrotwidget)
'
38
qt:+queued-connection+))
'
39
'
40
(defun draw-rendering (painter widget)
'
41
(cxx:set-pen painter (make-instance 'qt:color
'
42
:args (list qt:+white+)))
'
43
(cxx:draw-text painter (cxx:rect widget)
'
44
(value qt:+align-center+)
'
45
"Rendering initial image, please wait..."))
'
46
'
47
(defun complex-floor (complex)
'
48
"Applys FLOOR to the real and imaginary part of COMPLEX."
'
49
(complex (floor (realpart complex)
'
50
(imagpart complex))))
'
51
'
52
(defun draw-scaled-pixmap (painter widget)
'
53
(cxx:save painter) ;; FIXME make with- macro
'
54
(let* ((scale-factor (/ (pixmap-scale widget)
'
55
(scale widget)))
'
56
(pixmap-size (complex (cxx:width (pixmap widget))
'
57
(cxx:height (pixmap widget))))
'
58
(new-size (* scale-factor pixmap-size))
'
59
(new-center (+ (pixmap-offset widget) (/ (- pixmap-size new-size) 2))))
'
60
(cxx:translate painter (realpart new-center) (imagpart new-center))
'
61
(cxx:scale painter scale-factor scale-factor)
'
62
(let ((exposed (cxx:adjusted (cxx:map-rect (cxx:inverted (cxx:matrix painter))
'
63
(cxx:rect widget))
'
64
-1 -1 1 1)))
'
65
(cxx:draw-pixmap painter exposed (pixmap widget) exposed)))
'
66
(cxx:restore painter))
'
67
'
68
'
69
(defun draw-pixmap (painter widget)
'
70
(if (= (scale widget) (pixmap-scale widget))
'
71
(cxx:draw-pixmap painter
'
72
(floor (realpart (pixmap-offset widget)))
'
73
(floor (imagpart (pixmap-offset widget)))
'
74
(pixmap widget))
'
75
(draw-scaled-pixmap painter widget)))
'
76
'
77
(defmethod cxx:paint-event ((widget mandelbrotwidget) &rest args)
'
78
(declare (ignore args))
'
79
(qt:with-painter (painter widget)
'
80
(cxx:fill-rect painter (cxx:rect widget)
'
81
(make-instance 'qt:brush :args (list
'
82
(make-instance 'qt:color :args (list qt:+black+)))))
'
83
(if (null (pixmap widget))
'
84
(draw-rendering painter widget)
'
85
(draw-pixmap painter widget))))
'
86
'
87
(defmethod cxx:resize-event ((widget mandelbrotwidget) &rest args)
'
88
(declare (ignore args))
'
89
(when (slot-boundp widget 'render)
'
90
(setf (stop-p *render-control*) t)
'
91
(join-thread (slot-value widget 'render)))
'
92
(queue-image widget))
'
93
'
94
(defmethod cxx:key-press-event ((widget mandelbrotwidget) &rest args
'
95
&aux (event (first args)))
'
96
(enum-cases (cxx:key event)
'
97
(qt:+key-up+
'
98
(scroll widget #C(0d0 -5d0)))
'
99
(qt:+key-down+
'
100
(scroll widget #C(0d0 5d0)))
'
101
(qt:+key-left+
'
102
(scroll widget #C(-5d0 0d0)))
'
103
(qt:+key-right+
'
104
(scroll widget #C(5d0 0d0)))
'
105
(qt:+key-plus+
'
106
(zoom widget (zoom-in-factor)))
'
107
(qt:+key-minus+
'
108
(zoom widget (zoom-out-factor)))))
'
109
'
110
(defmethod cxx:mouse-press-event ((widget mandelbrotwidget) &rest args
'
111
&aux (event (first args)))
'
112
(when (enum= (cxx:button event) qt:+left-button+)
'
113
(setf (last-drag-pos widget) (complex (cxx:x event)
'
114
(cxx:y event)))))
'
115
'
116
(defmethod cxx:wheel-event ((widget mandelbrotwidget) &rest args
'
117
&aux (event (first args)))
'
118
(zoom widget (expt (zoom-in-factor) (/ (cxx:delta event) (* 8 15.0)))))
'
119
'
120
(defmethod cxx:mouse-move-event ((widget mandelbrotwidget) &rest args
'
121
&aux (event (first args)))
'
122
(when (logand (cxx:buttons event) (value qt:+left-button+))
'
123
(incf (pixmap-offset widget)
'
124
(- (complex (cxx:x event)
'
125
(cxx:y event))
'
126
(last-drag-pos widget)))
'
127
(setf (last-drag-pos widget) (complex (cxx:x event)
'
128
(cxx:y event)))
'
129
(cxx:update widget)))
'
130
'
131
(defmethod cxx:mouse-release-event ((widget mandelbrotwidget) &rest args
'
132
&aux (event (first args)))
'
133
(when (enum= (cxx:button event) qt:+left-button+)
'
134
(incf (pixmap-offset widget)
'
135
(- (complex (cxx:x event)
'
136
(cxx:y event))
'
137
(last-drag-pos widget)))
'
138
(setf (last-drag-pos widget) nil)
'
139
(let ((pixmap-size (complex (cxx:width (pixmap widget))
'
140
(cxx:height (pixmap widget))))
'
141
(size (complex (cxx:width widget)
'
142
(cxx:height widget))))
'
143
(scroll widget (- (/ (- size pixmap-size) 2) (pixmap-offset widget))))))
'
144
'
145
(defun queue-image (widget)
'
146
(setf (stop-p *render-control*) nil)
'
147
;; FIXME do not creating a new thread on every invokation
'
148
(setf (render-thread widget)
'
149
(make-thread (make-render-function (center widget)
'
150
(scale widget)
'
151
(cxx:width widget)
'
152
(cxx:height widget)
'
153
*render-control*))))
'
154
'
155
(defun zoom (widget factor)
'
156
(setf (scale widget) (* (scale widget) factor))
'
157
(cxx:update widget)
'
158
(queue-image widget))
'
159
'
160
(defun scroll (widget delta)
'
161
(incf (center widget) (* (scale widget) delta))
'
162
(cxx:update widget)
'
163
(queue-image widget))