1 files changed, 0 insertions, 309 deletions
diff --git a/src/libui_sdl/libui/examples/histogram/main.c b/src/libui_sdl/libui/examples/histogram/main.c
deleted file mode 100644
index f2b0e79..0000000
--- a/src/libui_sdl/libui/examples/histogram/main.c
+++ /dev/null
@@ -1,309 +0,0 @@
-// 13 october 2015
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <time.h>
-#include "../../ui.h"
-
-uiWindow *mainwin;
-uiArea *histogram;
-uiAreaHandler handler;
-uiSpinbox *datapoints[10];
-uiColorButton *colorButton;
-int currentPoint = -1;
-
-// some metrics
-#define xoffLeft 20			/* histogram margins */
-#define yoffTop 20
-#define xoffRight 20
-#define yoffBottom 20
-#define pointRadius 5
-
-// helper to quickly set a brush color
-static void setSolidBrush(uiDrawBrush *brush, uint32_t color, double alpha)
-{
-	uint8_t component;
-
-	brush->Type = uiDrawBrushTypeSolid;
-	component = (uint8_t) ((color >> 16) & 0xFF);
-	brush->R = ((double) component) / 255;
-	component = (uint8_t) ((color >> 8) & 0xFF);
-	brush->G = ((double) component) / 255;
-	component = (uint8_t) (color & 0xFF);
-	brush->B = ((double) component) / 255;
-	brush->A = alpha;
-}
-
-// and some colors
-// names and values from https://msdn.microsoft.com/en-us/library/windows/desktop/dd370907%28v=vs.85%29.aspx
-#define colorWhite 0xFFFFFF
-#define colorBlack 0x000000
-#define colorDodgerBlue 0x1E90FF
-
-static void pointLocations(double width, double height, double *xs, double *ys)
-{
-	double xincr, yincr;
-	int i, n;
-
-	xincr = width / 9;		// 10 - 1 to make the last point be at the end
-	yincr = height / 100;
-
-	for (i = 0; i < 10; i++) {
-		// get the value of the point
-		n = uiSpinboxValue(datapoints[i]);
-		// because y=0 is the top but n=0 is the bottom, we need to flip
-		n = 100 - n;
-		xs[i] = xincr * i;
-		ys[i] = yincr * n;
-	}
-}
-
-static uiDrawPath *constructGraph(double width, double height, int extend)
-{
-	uiDrawPath *path;
-	double xs[10], ys[10];
-	int i;
-
-	pointLocations(width, height, xs, ys);
-
-	path = uiDrawNewPath(uiDrawFillModeWinding);
-
-	uiDrawPathNewFigure(path, xs[0], ys[0]);
-	for (i = 1; i < 10; i++)
-		uiDrawPathLineTo(path, xs[i], ys[i]);
-
-	if (extend) {
-		uiDrawPathLineTo(path, width, height);
-		uiDrawPathLineTo(path, 0, height);
-		uiDrawPathCloseFigure(path);
-	}
-
-	uiDrawPathEnd(path);
-	return path;
-}
-
-static void graphSize(double clientWidth, double clientHeight, double *graphWidth, double *graphHeight)
-{
-	*graphWidth = clientWidth - xoffLeft - xoffRight;
-	*graphHeight = clientHeight - yoffTop - yoffBottom;
-}
-
-static void handlerDraw(uiAreaHandler *a, uiArea *area, uiAreaDrawParams *p)
-{
-	uiDrawPath *path;
-	uiDrawBrush brush;
-	uiDrawStrokeParams sp;
-	uiDrawMatrix m;
-	double graphWidth, graphHeight;
-	double graphR, graphG, graphB, graphA;
-
-	// fill the area with white
-	setSolidBrush(&brush, colorWhite, 1.0);
-	path = uiDrawNewPath(uiDrawFillModeWinding);
-	uiDrawPathAddRectangle(path, 0, 0, p->AreaWidth, p->AreaHeight);
-	uiDrawPathEnd(path);
-	uiDrawFill(p->Context, path, &brush);
-	uiDrawFreePath(path);
-
-	// figure out dimensions
-	graphSize(p->AreaWidth, p->AreaHeight, &graphWidth, &graphHeight);
-
-	// clear sp to avoid passing garbage to uiDrawStroke()
-	// for example, we don't use dashing
-	memset(&sp, 0, sizeof (uiDrawStrokeParams));
-
-	// make a stroke for both the axes and the histogram line
-	sp.Cap = uiDrawLineCapFlat;
-	sp.Join = uiDrawLineJoinMiter;
-	sp.Thickness = 2;
-	sp.MiterLimit = uiDrawDefaultMiterLimit;
-
-	// draw the axes
-	setSolidBrush(&brush, colorBlack, 1.0);
-	path = uiDrawNewPath(uiDrawFillModeWinding);
-	uiDrawPathNewFigure(path,
-		xoffLeft, yoffTop);
-	uiDrawPathLineTo(path,
-		xoffLeft, yoffTop + graphHeight);
-	uiDrawPathLineTo(path,
-		xoffLeft + graphWidth, yoffTop + graphHeight);
-	uiDrawPathEnd(path);
-	uiDrawStroke(p->Context, path, &brush, &sp);
-	uiDrawFreePath(path);
-
-	// now transform the coordinate space so (0, 0) is the top-left corner of the graph
-	uiDrawMatrixSetIdentity(&m);
-	uiDrawMatrixTranslate(&m, xoffLeft, yoffTop);
-	uiDrawTransform(p->Context, &m);
-
-	// now get the color for the graph itself and set up the brush
-	uiColorButtonColor(colorButton, &graphR, &graphG, &graphB, &graphA);
-	brush.Type = uiDrawBrushTypeSolid;
-	brush.R = graphR;
-	brush.G = graphG;
-	brush.B = graphB;
-	// we set brush->A below to different values for the fill and stroke
-
-	// now create the fill for the graph below the graph line
-	path = constructGraph(graphWidth, graphHeight, 1);
-	brush.A = graphA / 2;
-	uiDrawFill(p->Context, path, &brush);
-	uiDrawFreePath(path);
-
-	// now draw the histogram line
-	path = constructGraph(graphWidth, graphHeight, 0);
-	brush.A = graphA;
-	uiDrawStroke(p->Context, path, &brush, &sp);
-	uiDrawFreePath(path);
-
-	// now draw the point being hovered over
-	if (currentPoint != -1) {
-		double xs[10], ys[10];
-
-		pointLocations(graphWidth, graphHeight, xs, ys);
-		path = uiDrawNewPath(uiDrawFillModeWinding);
-		uiDrawPathNewFigureWithArc(path,
-			xs[currentPoint], ys[currentPoint],
-			pointRadius,
-			0, 6.23,		// TODO pi
-			0);
-		uiDrawPathEnd(path);
-		// use the same brush as for the histogram lines
-		uiDrawFill(p->Context, path, &brush);
-		uiDrawFreePath(path);
-	}
-}
-
-static int inPoint(double x, double y, double xtest, double ytest)
-{
-	// TODO switch to using a matrix
-	x -= xoffLeft;
-	y -= yoffTop;
-	return (x >= xtest - pointRadius) &&
-		(x <= xtest + pointRadius) &&
-		(y >= ytest - pointRadius) &&
-		(y <= ytest + pointRadius);
-}
-
-static void handlerMouseEvent(uiAreaHandler *a, uiArea *area, uiAreaMouseEvent *e)
-{
-	double graphWidth, graphHeight;
-	double xs[10], ys[10];
-	int i;
-
-	graphSize(e->AreaWidth, e->AreaHeight, &graphWidth, &graphHeight);
-	pointLocations(graphWidth, graphHeight, xs, ys);
-
-	for (i = 0; i < 10; i++)
-		if (inPoint(e->X, e->Y, xs[i], ys[i]))
-			break;
-	if (i == 10)		// not in a point
-		i = -1;
-
-	currentPoint = i;
-	// TODO only redraw the relevant area
-	uiAreaQueueRedrawAll(histogram);
-}
-
-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)
-{
-	// reject all keys
-	return 0;
-}
-
-static void onDatapointChanged(uiSpinbox *s, void *data)
-{
-	uiAreaQueueRedrawAll(histogram);
-}
-
-static void onColorChanged(uiColorButton *b, void *data)
-{
-	uiAreaQueueRedrawAll(histogram);
-}
-
-static int onClosing(uiWindow *w, void *data)
-{
-	uiControlDestroy(uiControl(mainwin));
-	uiQuit();
-	return 0;
-}
-
-static int shouldQuit(void *data)
-{
-	uiControlDestroy(uiControl(mainwin));
-	return 1;
-}
-
-int main(void)
-{
-	uiInitOptions o;
-	const char *err;
-	uiBox *hbox, *vbox;
-	int i;
-	uiDrawBrush brush;
-
-	handler.Draw = handlerDraw;
-	handler.MouseEvent = handlerMouseEvent;
-	handler.MouseCrossed = handlerMouseCrossed;
-	handler.DragBroken = handlerDragBroken;
-	handler.KeyEvent = handlerKeyEvent;
-
-	memset(&o, 0, sizeof (uiInitOptions));
-	err = uiInit(&o);
-	if (err != NULL) {
-		fprintf(stderr, "error initializing ui: %s\n", err);
-		uiFreeInitError(err);
-		return 1;
-	}
-
-	uiOnShouldQuit(shouldQuit, NULL);
-
-	mainwin = uiNewWindow("libui Histogram Example", 640, 480, 1);
-	uiWindowSetMargined(mainwin, 1);
-	uiWindowOnClosing(mainwin, onClosing, NULL);
-
-	hbox = uiNewHorizontalBox();
-	uiBoxSetPadded(hbox, 1);
-	uiWindowSetChild(mainwin, uiControl(hbox));
-
-	vbox = uiNewVerticalBox();
-	uiBoxSetPadded(vbox, 1);
-	uiBoxAppend(hbox, uiControl(vbox), 0);
-
-	srand(time(NULL));
-	for (i = 0; i < 10; i++) {
-		datapoints[i] = uiNewSpinbox(0, 100);
-		uiSpinboxSetValue(datapoints[i], rand() % 101);
-		uiSpinboxOnChanged(datapoints[i], onDatapointChanged, NULL);
-		uiBoxAppend(vbox, uiControl(datapoints[i]), 0);
-	}
-
-	colorButton = uiNewColorButton();
-	// TODO inline these
-	setSolidBrush(&brush, colorDodgerBlue, 1.0);
-	uiColorButtonSetColor(colorButton,
-		brush.R,
-		brush.G,
-		brush.B,
-		brush.A);
-	uiColorButtonOnChanged(colorButton, onColorChanged, NULL);
-	uiBoxAppend(vbox, uiControl(colorButton), 0);
-
-	histogram = uiNewArea(&handler);
-	uiBoxAppend(hbox, uiControl(histogram), 1);
-
-	uiControlShow(uiControl(mainwin));
-	uiMain();
-	uiUninit();
-	return 0;
-}