First Commit

libui-ng/old/_wip/examples_drawtext/main.c

@@ -0,0 +1,136 @@
+// 17 january 2017
+#include "drawtext.h"
+
+static uiWindow *mainwin;
+static uiBox *box;
+static uiCombobox *exampleList;
+static uiArea *area;
+static uiAreaHandler handler;
+
+#define nExamples 20
+static struct example *examples[nExamples];
+static int curExample = 0;
+
+static void onExampleChanged(uiCombobox *c, void *data)
+{
+	uiControlHide(examples[curExample]->panel);
+	curExample = uiComboboxSelected(exampleList);
+	uiControlShow(examples[curExample]->panel);
+	redraw();
+}
+
+void redraw(void)
+{
+	uiAreaQueueRedrawAll(area);
+}
+
+static void handlerDraw(uiAreaHandler *a, uiArea *area, uiAreaDrawParams *p)
+{
+	examples[curExample]->draw(p);
+}
+
+static void handlerMouseEvent(uiAreaHandler *a, uiArea *area, uiAreaMouseEvent *e)
+{
+	if (examples[curExample]->mouse != NULL)
+		examples[curExample]->mouse(e);
+}
+
+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 (examples[curExample]->key != NULL)
+		return examples[curExample]->key(e);
+	return 0;
+}
+
+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;
+	int n;
+
+	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 Text-Drawing Example", 640, 480, 1);
+	uiWindowOnClosing(mainwin, onClosing, NULL);
+
+	box = uiNewVerticalBox();
+	uiWindowSetChild(mainwin, uiControl(box));
+
+	exampleList = uiNewCombobox();
+	uiBoxAppend(box, uiControl(exampleList), 0);
+
+	area = uiNewArea(&handler);
+	uiBoxAppend(box, uiControl(area), 1);
+
+	n = 0;
+	examples[n] = mkBasicExample();
+	uiComboboxAppend(exampleList, examples[n]->name);
+	uiControlHide(examples[n]->panel);
+	uiBoxAppend(box, examples[n]->panel, 0);
+	n++;
+	examples[n] = mkHitTestExample();
+	uiComboboxAppend(exampleList, examples[n]->name);
+	uiControlHide(examples[n]->panel);
+	uiBoxAppend(box, examples[n]->panel, 0);
+	n++;
+	examples[n] = mkAttributesExample();
+	uiComboboxAppend(exampleList, examples[n]->name);
+	uiControlHide(examples[n]->panel);
+	uiBoxAppend(box, examples[n]->panel, 0);
+	n++;
+	examples[n] = mkEmptyStringExample();
+	uiComboboxAppend(exampleList, examples[n]->name);
+	uiControlHide(examples[n]->panel);
+	uiBoxAppend(box, examples[n]->panel, 0);
+	n++;
+	// and set things up for the initial state
+	uiComboboxSetSelected(exampleList, 0);
+	uiComboboxOnSelected(exampleList, onExampleChanged, NULL);
+	// and set up the first one
+	onExampleChanged(NULL, NULL);
+
+	uiControlShow(uiControl(mainwin));
+	uiMain();
+
+	// TODO free examples
+
+	uiUninit();
+	return 0;
+}