Duncan McIntyre / SimpleGUI

Foundation classes for a basic GUI implementing simple widgets and events

Dependents:   TouchScreenGUIDemo

Widgets/SpinnerWidget.cpp@18:d849f3ada858, 2016-05-28 (annotated)

Committer:
duncanFrance
Date:
Sat May 28 14:50:14 2016 +0000
Revision:
18:d849f3ada858
Parent:
17:5184762fda6c 
Moved the event queue into the EventDispatcher; Improved event handling across Window/Widget

Who changed what in which revision?

UserRevisionLine numberNew contents of line
duncanFrance 11:b485561aa112 1 #include "SpinnerWidget.h"
duncanFrance 11:b485561aa112 2
duncanFrance 13:6714534e7974 3 #include"resources/BlueButtonLeft_50x64_bmp.h"
duncanFrance 13:6714534e7974 4 #include"resources/BlueButtonRight_50x64_bmp.h"
duncanFrance 11:b485561aa112 5
duncanFrance 12:63db16fea709 6 SpinnerWidget::SpinnerWidget(GraphicsContext *context)
duncanFrance 12:63db16fea709 7 : ContainerWidget(context),
duncanFrance 12:63db16fea709 8 _upArrow(context), _text(context), _downArrow(context),
duncanFrance 12:63db16fea709 9 _min(0), _max(0), _increment(0.5), _value(0),
duncanFrance 12:63db16fea709 10 _format(""), _buf("")
duncanFrance 11:b485561aa112 11 {
duncanFrance 12:63db16fea709 12
duncanFrance 13:6714534e7974 13 setLayout(FIXED);
duncanFrance 13:6714534e7974 14 setBorder(1, White);
duncanFrance 13:6714534e7974 15 setPadding(1);
duncanFrance 13:6714534e7974 16 _upArrow.setBitmap(BlueButtonLeft_50x64_bmp, 50, 64);
duncanFrance 13:6714534e7974 17 _downArrow.setBitmap(BlueButtonRight_50x64_bmp, 50, 64);
duncanFrance 13:6714534e7974 18
duncanFrance 13:6714534e7974 19 // Calculate these here to take account of border and margin settings
duncanFrance 13:6714534e7974 20 // since BitmapWidgets resize themselves rather than clip (!)
duncanFrance 13:6714534e7974 21 setSize(
duncanFrance 13:6714534e7974 22 context->display()->width(),
duncanFrance 13:6714534e7974 23 _upArrow.height() + 2*(_borderWidth+_padding)
duncanFrance 13:6714534e7974 24 );
duncanFrance 13:6714534e7974 25
duncanFrance 13:6714534e7974 26 _upArrow.setLocation(
duncanFrance 13:6714534e7974 27 _borderWidth + _padding,
duncanFrance 13:6714534e7974 28 _borderWidth + _padding
duncanFrance 13:6714534e7974 29 );
duncanFrance 13:6714534e7974 30
duncanFrance 13:6714534e7974 31 _downArrow.setLocation(
duncanFrance 13:6714534e7974 32 width() - _downArrow.width() - (_borderWidth + _padding),
duncanFrance 13:6714534e7974 33 _borderWidth + _padding
duncanFrance 13:6714534e7974 34 );
duncanFrance 13:6714534e7974 35
duncanFrance 12:63db16fea709 36
duncanFrance 13:6714534e7974 37 int textWidth = width()
duncanFrance 13:6714534e7974 38 - _upArrow.width() - 2*(_borderWidth + _padding)
duncanFrance 13:6714534e7974 39 - _downArrow.width() - 2*(_borderWidth + _padding)
duncanFrance 13:6714534e7974 40 ;
duncanFrance 13:6714534e7974 41
duncanFrance 13:6714534e7974 42 int textHeight = height() - 2*(_borderWidth + _padding +1);
duncanFrance 12:63db16fea709 43
duncanFrance 13:6714534e7974 44 _text.setSize(textWidth, textHeight);
duncanFrance 13:6714534e7974 45 _text.setLocation(_downArrow.width() + _borderWidth + _padding, _borderWidth + _padding);
duncanFrance 12:63db16fea709 46 _text.setForeground(White);
duncanFrance 12:63db16fea709 47 _text.setBackground(Black);
duncanFrance 17:5184762fda6c 48 _text.setVAlign(TextWidget::MIDDLE);
duncanFrance 12:63db16fea709 49
duncanFrance 12:63db16fea709 50 EventHandler* up = new EventHandler(TOUCH_TAP, this, &SpinnerWidget::_onUpClick);
duncanFrance 12:63db16fea709 51 EventHandler* down = new EventHandler(TOUCH_TAP, this, &SpinnerWidget::_onDownClick);
duncanFrance 12:63db16fea709 52
duncanFrance 12:63db16fea709 53 attach(&_upArrow);
duncanFrance 12:63db16fea709 54 attach(&_text);
duncanFrance 12:63db16fea709 55 attach(&_downArrow);
duncanFrance 12:63db16fea709 56
duncanFrance 12:63db16fea709 57 _upArrow.setEventHandler(up);
duncanFrance 12:63db16fea709 58 _downArrow.setEventHandler(down);
duncanFrance 11:b485561aa112 59 }
duncanFrance 11:b485561aa112 60
duncanFrance 17:5184762fda6c 61 TextWidget *SpinnerWidget::getTextWidget() {
duncanFrance 17:5184762fda6c 62 return &_text;
duncanFrance 17:5184762fda6c 63 }
duncanFrance 17:5184762fda6c 64
duncanFrance 11:b485561aa112 65 void SpinnerWidget::setMin(float min)
duncanFrance 11:b485561aa112 66 {
duncanFrance 12:63db16fea709 67 if(_min != min) {
duncanFrance 12:63db16fea709 68 _min = min;
duncanFrance 12:63db16fea709 69 dirty();
duncanFrance 12:63db16fea709 70 }
duncanFrance 11:b485561aa112 71 }
duncanFrance 11:b485561aa112 72
duncanFrance 11:b485561aa112 73 void SpinnerWidget::setMax(float max)
duncanFrance 11:b485561aa112 74 {
duncanFrance 12:63db16fea709 75 if(_max != max) {
duncanFrance 12:63db16fea709 76 _max = max;
duncanFrance 12:63db16fea709 77 dirty();
duncanFrance 12:63db16fea709 78 }
duncanFrance 11:b485561aa112 79 }
duncanFrance 11:b485561aa112 80
duncanFrance 11:b485561aa112 81 void SpinnerWidget::setIncrement(float increment)
duncanFrance 11:b485561aa112 82 {
duncanFrance 12:63db16fea709 83 if(_increment != increment) {
duncanFrance 12:63db16fea709 84 _increment = increment;
duncanFrance 12:63db16fea709 85 dirty();
duncanFrance 12:63db16fea709 86 }
duncanFrance 11:b485561aa112 87 }
duncanFrance 11:b485561aa112 88
duncanFrance 11:b485561aa112 89 void SpinnerWidget::setValue(float value)
duncanFrance 11:b485561aa112 90 {
duncanFrance 12:63db16fea709 91 if(_value != value) {
duncanFrance 12:63db16fea709 92 _value = value;
duncanFrance 12:63db16fea709 93 dirty();
duncanFrance 12:63db16fea709 94 }
duncanFrance 12:63db16fea709 95 }
duncanFrance 12:63db16fea709 96
duncanFrance 12:63db16fea709 97 void SpinnerWidget::setFormat(const char* format)
duncanFrance 12:63db16fea709 98 {
duncanFrance 12:63db16fea709 99 _format = format;
duncanFrance 12:63db16fea709 100 dirty();
duncanFrance 12:63db16fea709 101 }
duncanFrance 12:63db16fea709 102
duncanFrance 12:63db16fea709 103
duncanFrance 12:63db16fea709 104 float SpinnerWidget::getMin()
duncanFrance 12:63db16fea709 105 {
duncanFrance 12:63db16fea709 106 return _min;
duncanFrance 11:b485561aa112 107 }
duncanFrance 11:b485561aa112 108
duncanFrance 12:63db16fea709 109 float SpinnerWidget::getMax()
duncanFrance 12:63db16fea709 110 {
duncanFrance 12:63db16fea709 111 return _max;
duncanFrance 12:63db16fea709 112 }
duncanFrance 12:63db16fea709 113
duncanFrance 12:63db16fea709 114 float SpinnerWidget::getIncrement()
duncanFrance 11:b485561aa112 115 {
duncanFrance 12:63db16fea709 116 return _increment;
duncanFrance 12:63db16fea709 117 }
duncanFrance 12:63db16fea709 118
duncanFrance 12:63db16fea709 119 float SpinnerWidget::getValue()
duncanFrance 12:63db16fea709 120 {
duncanFrance 12:63db16fea709 121 return _value;
duncanFrance 12:63db16fea709 122 }
duncanFrance 12:63db16fea709 123
duncanFrance 12:63db16fea709 124 const char* SpinnerWidget::getFormat()
duncanFrance 12:63db16fea709 125 {
duncanFrance 12:63db16fea709 126 return _format;
duncanFrance 11:b485561aa112 127 }
duncanFrance 11:b485561aa112 128
duncanFrance 11:b485561aa112 129 template<typename T>
duncanFrance 12:63db16fea709 130 void SpinnerWidget::onChange(T* tptr, void (T::*mptr)(Event))
duncanFrance 11:b485561aa112 131 {
duncanFrance 11:b485561aa112 132 _onChange.attach(tptr, mptr);
duncanFrance 11:b485561aa112 133 }
duncanFrance 11:b485561aa112 134
duncanFrance 12:63db16fea709 135 void SpinnerWidget::setSize(int width, int height)
duncanFrance 12:63db16fea709 136 {
duncanFrance 12:63db16fea709 137 ContainerWidget::setSize(width, height);
duncanFrance 12:63db16fea709 138 }
duncanFrance 11:b485561aa112 139
duncanFrance 12:63db16fea709 140 void SpinnerWidget::_dirty()
duncanFrance 12:63db16fea709 141 {
duncanFrance 12:63db16fea709 142
duncanFrance 12:63db16fea709 143 sprintf(_buf, _format, _value);
duncanFrance 12:63db16fea709 144 _text.setText(_buf);
duncanFrance 12:63db16fea709 145
duncanFrance 12:63db16fea709 146 ContainerWidget::_dirty();
duncanFrance 11:b485561aa112 147 }
duncanFrance 12:63db16fea709 148
duncanFrance 12:63db16fea709 149
duncanFrance 12:63db16fea709 150 void SpinnerWidget::_onUpClick(Event e)
duncanFrance 12:63db16fea709 151 {
duncanFrance 12:63db16fea709 152 _value += _increment;
duncanFrance 12:63db16fea709 153 if(_value > _max) {
duncanFrance 12:63db16fea709 154 _value = _max;
duncanFrance 12:63db16fea709 155 }
duncanFrance 12:63db16fea709 156 dirty();
duncanFrance 12:63db16fea709 157 }
duncanFrance 12:63db16fea709 158
duncanFrance 12:63db16fea709 159 void SpinnerWidget::_onDownClick(Event e)
duncanFrance 12:63db16fea709 160 {
duncanFrance 12:63db16fea709 161 _value -= _increment;
duncanFrance 12:63db16fea709 162 if(_value < _min) {
duncanFrance 12:63db16fea709 163 _value = _min;
duncanFrance 12:63db16fea709 164 }
duncanFrance 12:63db16fea709 165 dirty();
duncanFrance 11:b485561aa112 166 }