new demo

git-svn-id: http://svn2.nishi.boats/svn/milsko/trunk@302 b9cfdab3-6d41-4d17-bbe4-086880011989

examples/gltriangle.c

@@ -2,8 +2,6 @@
 #include <Mw/Milsko.h>
 #include <Mw/Widget/OpenGL.h>
 
-#include <GL/gl.h>
-
 MwWidget window, opengl, button;
 int	 ow, oh;
 double	 deg = 0;

examples/gltripaint.c

@@ -0,0 +1,115 @@
+/* $Id$ */
+#include <Mw/Milsko.h>
+#include <Mw/Widget/OpenGL.h>
+
+#include <stdlib.h>
+
+MwWidget opengl;
+
+typedef struct triangle {
+	int    points[3 * 2];
+	double r;
+	double g;
+	double b;
+} triangle_t;
+
+/* who needs more? :) */
+triangle_t t[128];
+int	   ct	 = 0;
+int	   click = 0;
+int	   mx, my;
+
+static void tick(MwWidget handle, void* user, void* call) {
+	int i;
+	int w = MwGetInteger(opengl, MwNwidth);
+	int h = MwGetInteger(opengl, MwNheight);
+
+	MwOpenGLMakeCurrent(opengl);
+
+	glClear(GL_COLOR_BUFFER_BIT);
+
+	glMatrixMode(GL_PROJECTION);
+	glLoadIdentity();
+	glOrtho(0, w, h, 0, -1, 1);
+
+	glMatrixMode(GL_MODELVIEW);
+	glLoadIdentity();
+
+	for(i = 0; i < ct + (click == 2 ? 1 : 0); i++) {
+		int j;
+		glBegin(GL_TRIANGLES);
+		glColor3d(t[i].r, t[i].g, t[i].b);
+		for(j = 0; j < 3; j++) {
+			glVertex2d(t[i].points[j * 2 + 0], t[i].points[j * 2 + 1]);
+		}
+		glEnd();
+	}
+
+	MwOpenGLSwapBuffer(opengl);
+}
+
+static void mouse(MwWidget handle, void* user, void* call) {
+	MwLLMouse* mouse = call;
+	if(mouse->button == MwLLMouseLeft) {
+		t[ct].points[click * 2 + 0] = mouse->point.x;
+		t[ct].points[click * 2 + 1] = mouse->point.y;
+		click++;
+		if(click == 1) {
+			t[ct].r = rand() % 65536;
+			t[ct].g = rand() % 65536;
+			t[ct].b = rand() % 65536;
+
+			t[ct].r /= 65535;
+			t[ct].g /= 65535;
+			t[ct].b /= 65535;
+		} else if(click == 2) {
+			t[ct].points[2 * 2 + 0] = mx;
+			t[ct].points[2 * 2 + 1] = my;
+		} else if(click == 3) {
+			click = 0;
+			ct++;
+		}
+	} else if(mouse->button == MwLLMouseRight) {
+		if(click > 0) {
+			click = 0;
+		} else if(ct > 0) {
+			ct--;
+		}
+	}
+}
+
+static void mouse_move(MwWidget handle, void* user, void* call) {
+	MwPoint* point = call;
+	mx	       = point->x;
+	my	       = point->y;
+	if(click == 2) {
+		t[ct].points[2 * 2 + 0] = point->x;
+		t[ct].points[2 * 2 + 1] = point->y;
+	}
+}
+
+int main() {
+	MwSizeHints hints;
+	MwWidget    window   = MwVaCreateWidget(MwWindowClass, "main", NULL, MwDEFAULT, MwDEFAULT, 640, 480,
+						MwNtitle, "tripaint",
+						NULL);
+	MwWidget    viewport = MwCreateWidget(MwViewportClass, "viewport", window, 5, 5, 630, 470 - 16 - 5);
+
+	MwVaCreateWidget(MwLabelClass, "label", window, 5, 470 - 16 + 5, 630, 16,
+			 MwNtext, "Press left click to draw triangle, right click to undo",
+			 NULL);
+
+	MwViewportSetSize(viewport, 1024, 768);
+
+	opengl = MwCreateWidget(MwOpenGLClass, "opengl", MwViewportGetViewport(viewport), 0, 0, 1024, 768);
+
+	hints.min_width = hints.max_width = 640;
+	hints.min_height = hints.max_height = 480;
+	MwVaApply(window, MwNsizeHints, &hints, NULL);
+
+	MwAddUserHandler(window, MwNtickHandler, tick, NULL);
+	MwAddUserHandler(opengl, MwNmouseDownHandler, mouse, NULL);
+	MwAddUserHandler(opengl, MwNmouseMoveHandler, mouse_move, NULL);
+
+	MwLoop(window);
+}

examples/oldglut.c

@@ -1,8 +1,6 @@
 #include <Mw/Milsko.h>
 #include <Mw/Widget/OpenGL.h>
 
-#include <GL/gl.h>
-
 MwWidget opengl;
 
 static void draw(void);