Duncan McIntyre / SimpleGUI

Foundation classes for a basic GUI implementing simple widgets and events

Dependents:   TouchScreenGUIDemo

Widgets/ContainerWidget.cpp@12:63db16fea709, 2016-05-08 (annotated)

Committer:
duncanFrance
Date:
Sun May 08 14:42:08 2016 +0000
Revision:
12:63db16fea709
Child:
13:6714534e7974
Update to handle dirty pixels and geometric change/damage

Who changed what in which revision?

UserRevisionLine numberNew contents of line
duncanFrance 12:63db16fea709 1 #include "ContainerWidget.h"
duncanFrance 12:63db16fea709 2
duncanFrance 12:63db16fea709 3 ContainerWidget::ContainerWidget(GraphicsContext *context)
duncanFrance 12:63db16fea709 4 :
duncanFrance 12:63db16fea709 5 Window(context), _layout(HORIZONTAL)
duncanFrance 12:63db16fea709 6 {
duncanFrance 12:63db16fea709 7 }
duncanFrance 12:63db16fea709 8
duncanFrance 12:63db16fea709 9 void ContainerWidget::setLayout(Layout l)
duncanFrance 12:63db16fea709 10 {
duncanFrance 12:63db16fea709 11 if(_layout != l) {
duncanFrance 12:63db16fea709 12 _layout = l;
duncanFrance 12:63db16fea709 13 damage();
duncanFrance 12:63db16fea709 14 }
duncanFrance 12:63db16fea709 15 }
duncanFrance 12:63db16fea709 16
duncanFrance 12:63db16fea709 17 void ContainerWidget::setSize(int width, int height)
duncanFrance 12:63db16fea709 18 {
duncanFrance 12:63db16fea709 19 if(_minWidth != width || _minHeight != height) {
duncanFrance 12:63db16fea709 20 _minWidth = width;
duncanFrance 12:63db16fea709 21 _minHeight = height;
duncanFrance 12:63db16fea709 22 damage();
duncanFrance 12:63db16fea709 23 }
duncanFrance 12:63db16fea709 24 Window::setSize(width, height);
duncanFrance 12:63db16fea709 25 }
duncanFrance 12:63db16fea709 26
duncanFrance 12:63db16fea709 27
duncanFrance 12:63db16fea709 28
duncanFrance 12:63db16fea709 29 void ContainerWidget::_adjust()
duncanFrance 12:63db16fea709 30 {
duncanFrance 12:63db16fea709 31 setSize(_minWidth, _minHeight);
duncanFrance 12:63db16fea709 32 Window::_adjust();
duncanFrance 12:63db16fea709 33
duncanFrance 12:63db16fea709 34 int wx = _inner.x;
duncanFrance 12:63db16fea709 35 int wy = _inner.y;
duncanFrance 12:63db16fea709 36 int width = 0;
duncanFrance 12:63db16fea709 37 int height = 0;
duncanFrance 12:63db16fea709 38
duncanFrance 12:63db16fea709 39
duncanFrance 12:63db16fea709 40
duncanFrance 12:63db16fea709 41 Widget *w;
duncanFrance 12:63db16fea709 42
duncanFrance 12:63db16fea709 43 _widgets.reset();
duncanFrance 12:63db16fea709 44
duncanFrance 12:63db16fea709 45 while((w = _widgets.next()) != NULL) {
duncanFrance 12:63db16fea709 46
duncanFrance 12:63db16fea709 47 // Position the widgets
duncanFrance 12:63db16fea709 48 w->setLocation(wx, wy);
duncanFrance 12:63db16fea709 49
duncanFrance 12:63db16fea709 50 if(_layout == HORIZONTAL) {
duncanFrance 12:63db16fea709 51 wx += w->width();
duncanFrance 12:63db16fea709 52 if(w->height() > height) {
duncanFrance 12:63db16fea709 53 height = w->height();
duncanFrance 12:63db16fea709 54 }
duncanFrance 12:63db16fea709 55 } else {
duncanFrance 12:63db16fea709 56 wy += w->height();
duncanFrance 12:63db16fea709 57 if(w->width() > width) {
duncanFrance 12:63db16fea709 58 width = w->width();
duncanFrance 12:63db16fea709 59 }
duncanFrance 12:63db16fea709 60 }
duncanFrance 12:63db16fea709 61 }
duncanFrance 12:63db16fea709 62
duncanFrance 12:63db16fea709 63 int neededWidth;
duncanFrance 12:63db16fea709 64 int neededHeight;
duncanFrance 12:63db16fea709 65
duncanFrance 12:63db16fea709 66 if(_layout == HORIZONTAL) {
duncanFrance 12:63db16fea709 67 neededWidth = _padding + _borderWidth + wx - _outer.x;
duncanFrance 12:63db16fea709 68 neededHeight = 2 * (_padding + _borderWidth) + height;
duncanFrance 12:63db16fea709 69 } else {
duncanFrance 12:63db16fea709 70 neededWidth = 2 * (_padding + _borderWidth) + width;
duncanFrance 12:63db16fea709 71 neededHeight = _padding + _borderWidth + wy - _outer.y;
duncanFrance 12:63db16fea709 72 }
duncanFrance 12:63db16fea709 73
duncanFrance 12:63db16fea709 74 if(neededWidth > _outer.width) {
duncanFrance 12:63db16fea709 75 setWidth(neededWidth);
duncanFrance 12:63db16fea709 76 }
duncanFrance 12:63db16fea709 77
duncanFrance 12:63db16fea709 78 if(neededHeight > _outer.height) {
duncanFrance 12:63db16fea709 79 setHeight(neededHeight);
duncanFrance 12:63db16fea709 80 }
duncanFrance 12:63db16fea709 81
duncanFrance 12:63db16fea709 82 if(_layout == VERTICAL_CENTER) {
duncanFrance 12:63db16fea709 83 // layout again to center the widgets
duncanFrance 12:63db16fea709 84 int center = (_outer.width/2) + _outer.x;
duncanFrance 12:63db16fea709 85 _widgets.reset();
duncanFrance 12:63db16fea709 86 while((w = _widgets.next()) != NULL) {
duncanFrance 12:63db16fea709 87 w->setLocation(center - (w->width() / 2), w->y());
duncanFrance 12:63db16fea709 88 }
duncanFrance 12:63db16fea709 89 }
duncanFrance 12:63db16fea709 90
duncanFrance 12:63db16fea709 91 Window::_adjust();
duncanFrance 12:63db16fea709 92 }