363 lines
8.7 KiB
C
363 lines
8.7 KiB
C
// 4 september 2015
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#define _GNU_SOURCE
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#include <math.h>
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#include "area.h"
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// #qo pkg-config: gtk+-3.0
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struct handler {
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uiAreaHandler ah;
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};
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static GtkWidget *area;
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static struct handler h;
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static GtkWidget *nhspinb;
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static GtkWidget *nvspinb;
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static GtkWidget *textstr;
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static void handlerDraw(uiAreaHandler *a, uiArea *area, uiAreaDrawParams *p)
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{
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uiDrawPath *path;
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uiDrawBrush brush;
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uiDrawStrokeParams sp;
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brush.Type = uiDrawBrushTypeSolid;
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brush.A = 1;
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brush.R = 1;
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brush.G = 0;
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brush.B = 0;
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path = uiDrawNewPath(uiDrawFillModeWinding);
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uiDrawPathNewFigure(path, p->ClipX + 5, p->ClipY + 5);
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uiDrawPathLineTo(path, (p->ClipX + p->ClipWidth) - 5, (p->ClipY + p->ClipHeight) - 5);
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uiDrawPathEnd(path);
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sp.Cap = uiDrawLineCapFlat;
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sp.Join = uiDrawLineJoinMiter;
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sp.Thickness = 1;
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sp.MiterLimit = uiDrawDefaultMiterLimit;
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uiDrawStroke(p->Context, path, &brush, &sp);
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uiDrawFreePath(path);
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brush.R = 0;
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brush.G = 0;
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brush.B = 0.75;
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path = uiDrawNewPath(uiDrawFillModeWinding);
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uiDrawPathNewFigure(path, p->ClipX, p->ClipY);
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uiDrawPathLineTo(path, p->ClipX + p->ClipWidth, p->ClipY);
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uiDrawPathLineTo(path, 50, 150);
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uiDrawPathLineTo(path, 50, 50);
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uiDrawPathCloseFigure(path);
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uiDrawPathEnd(path);
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sp.Cap = uiDrawLineCapFlat;
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sp.Join = uiDrawLineJoinRound;
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sp.Thickness = 5;
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uiDrawStroke(p->Context, path, &brush, &sp);
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uiDrawFreePath(path);
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brush.R = 0;
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brush.G = 0.75;
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brush.B = 0;
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brush.A = 0.5;
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path = uiDrawNewPath(uiDrawFillModeWinding);
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uiDrawPathAddRectangle(path, 120, 80, 50, 50);
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uiDrawPathEnd(path);
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uiDrawFill(p->Context, path, &brush);
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uiDrawFreePath(path);
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brush.A = 1;
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brush.R = 0;
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brush.G = 0.5;
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brush.B = 0;
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path = uiDrawNewPath(uiDrawFillModeWinding);
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uiDrawPathNewFigure(path, 5.5, 10.5);
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uiDrawPathLineTo(path, 5.5, 50.5);
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uiDrawPathEnd(path);
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sp.Cap = uiDrawLineCapFlat;
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sp.Join = uiDrawLineJoinMiter;
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sp.Thickness = 1;
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sp.MiterLimit = uiDrawDefaultMiterLimit;
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uiDrawStroke(p->Context, path, &brush, &sp);
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uiDrawFreePath(path);
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brush.R = 0.5;
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brush.G = 0.75;
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brush.B = 0;
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path = uiDrawNewPath(uiDrawFillModeWinding);
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uiDrawPathNewFigure(path, 400, 100);
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uiDrawPathArcTo(path,
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400, 100,
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50,
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30. * (M_PI / 180.),
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// note the end angle here
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// in GDI, the second angle to AngleArc() is relative to the start, not to 0
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330. * (M_PI / 180.));
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// TODO add a checkbox for this
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uiDrawPathLineTo(path, 400, 100);
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uiDrawPathNewFigureWithArc(path,
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510, 100,
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50,
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30. * (M_PI / 180.),
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330. * (M_PI / 180.));
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uiDrawPathCloseFigure(path);
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uiDrawPathEnd(path);
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sp.Cap = uiDrawLineCapFlat;
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sp.Join = uiDrawLineJoinMiter;
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sp.Thickness = 1;
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sp.MiterLimit = uiDrawDefaultMiterLimit;
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uiDrawStroke(p->Context, path, &brush, &sp);
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uiDrawFreePath(path);
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brush.R = 0;
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brush.G = 0.5;
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brush.B = 0.75;
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path = uiDrawNewPath(uiDrawFillModeWinding);
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uiDrawPathNewFigure(path, 300, 300);
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uiDrawPathBezierTo(path,
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350, 320,
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310, 390,
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435, 372);
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uiDrawPathEnd(path);
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sp.Cap = uiDrawLineCapFlat;
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sp.Join = uiDrawLineJoinMiter;
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sp.Thickness = 1;
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sp.MiterLimit = uiDrawDefaultMiterLimit;
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uiDrawStroke(p->Context, path, &brush, &sp);
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uiDrawFreePath(path);
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// based on https://msdn.microsoft.com/en-us/library/windows/desktop/dd756682%28v=vs.85%29.aspx
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path = uiDrawNewPath(uiDrawFillModeWinding);
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#define XO 50
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#define YO 250
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uiDrawPathNewFigure(path, 0 + XO, 0 + YO);
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uiDrawPathLineTo(path, 200 + XO, 0 + YO);
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uiDrawPathBezierTo(path,
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150 + XO, 50 + YO,
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150 + XO, 150 + YO,
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200 + XO, 200 + YO);
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uiDrawPathLineTo(path, 0 + XO, 200 + YO);
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uiDrawPathBezierTo(path,
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50 + XO, 150 + YO,
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50 + XO, 50 + YO,
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0 + XO, 0 + YO);
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uiDrawPathCloseFigure(path);
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uiDrawPathEnd(path);
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// first the stroke
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brush.Type = uiDrawBrushTypeSolid;
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brush.R = 0;
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brush.G = 0;
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brush.B = 0;
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brush.A = 1;
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sp.Cap = uiDrawLineCapFlat;
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sp.Join = uiDrawLineJoinMiter;
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sp.MiterLimit = uiDrawDefaultMiterLimit;
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sp.Thickness = 10;
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uiDrawStroke(p->Context, path, &brush, &sp);
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// and now the fill
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{
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uiDrawBrushGradientStop stops[2];
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stops[0].Pos = 0.0;
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stops[0].R = 0.0;
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stops[0].G = 1.0;
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stops[0].B = 1.0;
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stops[0].A = 0.25;
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stops[1].Pos = 1.0;
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stops[1].R = 0.0;
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stops[1].G = 0.0;
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stops[1].B = 1.0;
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stops[1].A = 1.0;
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brush.Type = uiDrawBrushTypeLinearGradient;
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brush.X0 = 100 + XO;
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brush.Y0 = 0 + YO;
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brush.X1 = 100 + XO;
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brush.Y1 = 200 + YO;
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brush.Stops = stops;
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brush.NumStops = 2;
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uiDrawFill(p->Context, path, &brush);
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}
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#undef YO
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#undef XO
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uiDrawFreePath(path);
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// based on https://msdn.microsoft.com/en-us/library/windows/desktop/dd756679%28v=vs.85%29.aspx
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path = uiDrawNewPath(uiDrawFillModeWinding);
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uiDrawPathNewFigure(path, 585, 235);
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uiDrawPathArcTo(path,
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510, 235,
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75,
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0,
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// TODO why doesn't 360° work
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2 * M_PI - 0.1);
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uiDrawPathEnd(path);
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// first the stroke
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brush.Type = uiDrawBrushTypeSolid;
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brush.R = 0;
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brush.G = 0;
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brush.B = 0;
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brush.A = 1;
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sp.Cap = uiDrawLineCapFlat;
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sp.Join = uiDrawLineJoinMiter;
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sp.MiterLimit = uiDrawDefaultMiterLimit;
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sp.Thickness = 1;
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uiDrawStroke(p->Context, path, &brush, &sp);
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// then the fill
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{
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uiDrawBrushGradientStop stops[2];
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stops[0].Pos = 0.0;
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stops[0].R = 1.0;
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stops[0].G = 1.0;
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stops[0].B = 0.0;
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stops[0].A = 1.0;
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stops[1].Pos = 1.0;
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stops[1].R = ((double) 0x22) / 255.0;
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stops[1].G = ((double) 0x8B) / 255.0;
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stops[1].B = ((double) 0x22) / 255.0;
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stops[1].A = 1.0;
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brush.Type = uiDrawBrushTypeRadialGradient;
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// start point
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brush.X0 = 510;
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brush.Y0 = 235;
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// outer circle's center
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brush.X1 = 510;
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brush.Y1 = 235;
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brush.OuterRadius = 75;
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brush.Stops = stops;
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brush.NumStops = 2;
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uiDrawFill(p->Context, path, &brush);
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}
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uiDrawFreePath(path);
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}
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static uintmax_t handlerHScrollMax(uiAreaHandler *a, uiArea *area)
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{
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return gtk_spin_button_get_value_as_int(GTK_SPIN_BUTTON(nhspinb));
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}
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static uintmax_t handlerVScrollMax(uiAreaHandler *a, uiArea *area)
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{
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return gtk_spin_button_get_value_as_int(GTK_SPIN_BUTTON(nvspinb));
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}
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static int handlerRedrawOnResize(uiAreaHandler *a, uiArea *area)
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{
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return 1;
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}
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static void handlerMouseEvent(uiAreaHandler *a, uiArea *area, uiAreaMouseEvent *e)
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{
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printf("mouse (%d,%d):(%d,%d) down:%d up:%d count:%d mods:%x held:%x\n",
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(int) e->X,
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(int) e->Y,
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(int) e->HScrollPos,
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(int) e->VScrollPos,
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(int) e->Down,
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(int) e->Up,
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(int) e->Count,
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(uint32_t) e->Modifiers,
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e->Held1To64);
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}
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static void handlerDragBroken(uiAreaHandler *ah, uiArea *a)
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{
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printf("drag broken\n");
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}
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static int handlerKeyEvent(uiAreaHandler *ah, uiArea *a, uiAreaKeyEvent *e)
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{
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char k[4];
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k[0] = '\'';
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k[1] = e->Key;
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k[2] = '\'';
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k[3] = '\0';
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if (e->Key == 0) {
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k[0] = '0';
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k[1] = '\0';
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}
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printf("key key:%s extkey:%d mod:%d mods:%d up:%d\n",
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k,
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(int) e->ExtKey,
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(int) e->Modifier,
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(int) e->Modifiers,
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e->Up);
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return 0;
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}
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static void recalcScroll(GtkSpinButton *sb, gpointer data)
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{
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areaUpdateScroll(area);
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}
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static GtkWidget *makeSpinbox(int min)
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{
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GtkWidget *sb;
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sb = gtk_spin_button_new_with_range(min, 100000, 1);
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gtk_spin_button_set_digits(GTK_SPIN_BUTTON(sb), 0);
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g_signal_connect(sb, "value-changed", G_CALLBACK(recalcScroll), NULL);
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return sb;
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}
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int main(void)
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{
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GtkWidget *mainwin;
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GtkWidget *box;
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GtkWidget *scroller;
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GtkWidget *grid;
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h.ah.Draw = handlerDraw;
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h.ah.HScrollMax = handlerHScrollMax;
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h.ah.VScrollMax = handlerVScrollMax;
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h.ah.RedrawOnResize = handlerRedrawOnResize;
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h.ah.MouseEvent = handlerMouseEvent;
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h.ah.DragBroken = handlerDragBroken;
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h.ah.KeyEvent = handlerKeyEvent;
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gtk_init(NULL, NULL);
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mainwin = gtk_window_new(GTK_WINDOW_TOPLEVEL);
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gtk_container_set_border_width(GTK_CONTAINER(mainwin), 12);
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g_signal_connect(mainwin, "destroy", G_CALLBACK(gtk_main_quit), NULL);
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box = gtk_box_new(GTK_ORIENTATION_VERTICAL, 6);
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gtk_container_add(GTK_CONTAINER(mainwin), box);
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scroller = gtk_scrolled_window_new(NULL, NULL);
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gtk_widget_set_hexpand(scroller, TRUE);
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gtk_widget_set_halign(scroller, GTK_ALIGN_FILL);
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gtk_widget_set_vexpand(scroller, TRUE);
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gtk_widget_set_valign(scroller, GTK_ALIGN_FILL);
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gtk_container_add(GTK_CONTAINER(box), scroller);
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grid = gtk_grid_new();
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gtk_widget_set_halign(grid, GTK_ALIGN_START);
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gtk_container_add(GTK_CONTAINER(box), grid);
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gtk_grid_attach(GTK_GRID(grid),
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gtk_label_new("H Count"),
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0, 0, 1, 1);
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nhspinb = makeSpinbox(0);
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gtk_grid_attach(GTK_GRID(grid), nhspinb,
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1, 0, 1, 1);
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gtk_grid_attach(GTK_GRID(grid),
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gtk_label_new("V Count"),
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0, 1, 1, 1);
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nvspinb = makeSpinbox(0);
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gtk_grid_attach(GTK_GRID(grid), nvspinb,
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1, 1, 1, 1);
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textstr = gtk_entry_new();
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gtk_entry_set_text(GTK_ENTRY(textstr), "ベア・ナックルII 死闘への鎮魂歌");
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gtk_grid_attach(GTK_GRID(grid), textstr,
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2, 0, 1, 1);
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area = newArea((uiAreaHandler *) (&h));
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gtk_container_add(GTK_CONTAINER(scroller), area);
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gtk_widget_show_all(mainwin);
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gtk_main();
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return 0;
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}
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