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path: root/noncore/multimedia/tonleiter/pianoscale.cpp
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-rw-r--r--noncore/multimedia/tonleiter/pianoscale.cpp96
1 files changed, 96 insertions, 0 deletions
diff --git a/noncore/multimedia/tonleiter/pianoscale.cpp b/noncore/multimedia/tonleiter/pianoscale.cpp
new file mode 100644
index 0000000..3d5add2
--- a/dev/null
+++ b/noncore/multimedia/tonleiter/pianoscale.cpp
@@ -0,0 +1,96 @@
1#include "pianoscale.h"
2
3#include <qpainter.h>
4
5
6Menu::PianoScale::PianoScale(QWidget* parent,const char* name,WFlags f)
7:QWidget(parent,name,f)
8{
9 QColor black(0,0,0);
10 QColor white(255,255,255);
11 QColor mark(255,0,0);
12 blackBrush=QBrush(black);
13 whiteBrush=QBrush(white);
14 markBrush=QBrush(mark);
15 blackPen=QPen(black);
16 whitePen=QPen(white);
17 setBackgroundColor(QColor(0,0,255));
18}
19//****************************************************************************
20Menu::PianoScale::~ PianoScale()
21{
22}
23//****************************************************************************
24void Menu::PianoScale::paintEvent(QPaintEvent* pe)
25{
26 QPainter p(this);
27 QRect mysize=rect();
28
29 int pad=10;
30 int x0=pad;
31 int y0=pad;
32 int w0=mysize.width()-2*pad;
33 int h0=mysize.height()-2*pad;
34
35 int keypad=2;
36 if(mysize.width()>mysize.height())
37 {
38 int div=(int)(w0/14.0);
39 int halftonewidth=(int)(div/3.0);
40 int halftoneheight=(int)((h0-2*keypad)*0.66);
41 for(int a=0;a<14;a++)
42 {
43 int x=x0+a*div;
44
45 p.setPen(blackPen);
46 p.setBrush(blackBrush);
47 p.drawRect(x,y0,div,h0);
48
49 p.setPen(whitePen);
50 p.setBrush(whiteBrush);
51 p.drawRect(x+keypad,y0+keypad,div-2*keypad,h0-2*keypad);
52
53 if(a==1 || a==2 || a==4 || a==5 || a==6 || a==8 || a==9 || a==11 || a==12 || a==13)
54 {
55 p.setPen(blackPen);
56 p.setBrush(blackBrush);
57 p.drawRect(x-halftonewidth,y0+keypad,2*halftonewidth,halftoneheight);
58 }
59 }
60 }
61 else
62 {
63 int div=(int)(w0/7.0);
64 int halfheight=(int)(h0/2.0);
65 int halftonewidth=(int)(div/3.0);
66 int halftoneheight=(int)((halfheight-2*keypad)*0.66);
67 for(int a=0;a<7;a++)
68 {
69 int x=x0+a*div;
70
71 p.setPen(blackPen);
72 p.setBrush(blackBrush);
73 p.drawRect(x,y0,div,h0);
74
75 p.setPen(whitePen);
76 p.setBrush(whiteBrush);
77 p.drawRect(x+keypad,y0+keypad,div-2*keypad,halfheight-2*keypad);
78 p.drawRect(x+keypad,y0+keypad+halfheight,div-2*keypad,halfheight-2*keypad);
79
80 if(a==1 || a==2 || a==4 || a==5 || a==6)
81 {
82 p.setPen(blackPen);
83 p.setBrush(blackBrush);
84 p.drawRect(x-halftonewidth,y0+keypad,2*halftonewidth,halftoneheight);
85 p.drawRect(x-halftonewidth,y0+keypad+halfheight,2*halftonewidth,halftoneheight);
86 }
87 }
88 }
89}
90//****************************************************************************
91void Menu::PianoScale::mousePressEvent(QMouseEvent* me)
92{
93}
94//****************************************************************************
95//****************************************************************************
96