114 lines
2.4 KiB
C
114 lines
2.4 KiB
C
// 13 october 2015
|
|
#include "test.h"
|
|
|
|
static uiArea *area;
|
|
|
|
struct handler {
|
|
uiAreaHandler ah;
|
|
};
|
|
|
|
static struct handler handler;
|
|
|
|
#define areaSize 250
|
|
#define borderThickness 1
|
|
#define padding 30
|
|
#define circleRadius ((areaSize - padding) / 2)
|
|
|
|
static void handlerDraw(uiAreaHandler *a, uiArea *area, uiAreaDrawParams *dp)
|
|
{
|
|
uiDrawPath *path;
|
|
uiDrawBrush brush;
|
|
uiDrawStrokeParams sp;
|
|
uiDrawBrushGradientStop stops[2];
|
|
|
|
memset(&brush, 0, sizeof (uiDrawBrush));
|
|
memset(&sp, 0, sizeof (uiDrawStrokeParams));
|
|
|
|
path = uiDrawNewPath(uiDrawFillModeWinding);
|
|
uiDrawPathAddRectangle(path,
|
|
0, 0,
|
|
areaSize, areaSize);
|
|
uiDrawPathEnd(path);
|
|
brush.Type = uiDrawBrushTypeSolid;
|
|
brush.R = 1;
|
|
brush.G = 0;
|
|
brush.B = 0;
|
|
brush.A = 1;
|
|
sp.Cap = uiDrawLineCapFlat;
|
|
sp.Join = uiDrawLineJoinMiter;
|
|
sp.Thickness = 1;
|
|
sp.MiterLimit = uiDrawDefaultMiterLimit;
|
|
uiDrawStroke(dp->Context, path, &brush, &sp);
|
|
uiDrawFreePath(path);
|
|
|
|
path = uiDrawNewPath(uiDrawFillModeWinding);
|
|
uiDrawPathNewFigureWithArc(path,
|
|
areaSize / 2, areaSize / 2,
|
|
circleRadius,
|
|
0, 2 * M_PI,
|
|
0);
|
|
uiDrawPathEnd(path);
|
|
stops[0].Pos =0.0;
|
|
stops[0].R = 0.0;
|
|
stops[0].G = 1.0;
|
|
stops[0].B = 1.0;
|
|
stops[0].A = 1.0;
|
|
stops[1].Pos = 1.0;
|
|
stops[1].R = 0.0;
|
|
stops[1].G = 0.0;
|
|
stops[1].B = 1.0;
|
|
stops[1].A = 1.0;
|
|
brush.Type = uiDrawBrushTypeLinearGradient;
|
|
brush.X0 = areaSize / 2;
|
|
brush.Y0 = padding;
|
|
brush.X1 = areaSize / 2;
|
|
brush.Y1 = areaSize - padding;
|
|
brush.Stops = stops;
|
|
brush.NumStops = 2;
|
|
uiDrawFill(dp->Context, path, &brush);
|
|
uiDrawFreePath(path);
|
|
}
|
|
|
|
static void handlerMouseEvent(uiAreaHandler *a, uiArea *area, uiAreaMouseEvent *e)
|
|
{
|
|
// do nothing
|
|
}
|
|
|
|
static void handlerMouseCrossed(uiAreaHandler *ah, uiArea *a, int left)
|
|
{
|
|
// do nothing
|
|
}
|
|
|
|
static void handlerDragBroken(uiAreaHandler *ah, uiArea *a)
|
|
{
|
|
// do nothing
|
|
}
|
|
|
|
static int handlerKeyEvent(uiAreaHandler *ah, uiArea *a, uiAreaKeyEvent *e)
|
|
{
|
|
if (e->Key == 'h' && !e->Up) {
|
|
// TODO hide the widget momentarily on the h key
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
uiGroup *makePage7c(void)
|
|
{
|
|
uiGroup *group;
|
|
|
|
handler.ah.Draw = handlerDraw;
|
|
handler.ah.MouseEvent = handlerMouseEvent;
|
|
handler.ah.MouseCrossed = handlerMouseCrossed;
|
|
handler.ah.DragBroken = handlerDragBroken;
|
|
handler.ah.KeyEvent = handlerKeyEvent;
|
|
|
|
group = newGroup("Scrolling Drawing Test");
|
|
|
|
area = uiNewScrollingArea((uiAreaHandler *) (&handler),
|
|
areaSize, areaSize);
|
|
uiGroupSetChild(group, uiControl(area));
|
|
|
|
return group;
|
|
}
|