-/* -*- mode: c; c-basic-offset: 2 -*-
+/* -*- mode: c; c-basic-offset: 8 -*-
* To compile:
*
* gcc -Wall -g $(pkg-config --cflags --libs gtk+-2.0 cairo) \
static void
model_init_polygons (Model *model)
{
- const int num_polygons = 5;
- const double ground_level = 500;
+ const int num_polygons = 5;
+ const double ground_level = 500;
- model->polygons = g_new (Polygon, num_polygons);
- polygon_init_diamond (&model->polygons[0], 250, 300);
- polygon_init_diamond (&model->polygons[1], 400, 150);
- polygon_init_rectangle (&model->polygons[2], -100, 200, 200, 250);
- polygon_init_rectangle (&model->polygons[3], -200, ground_level,
- 1200, ground_level + 400);
+ model->polygons = g_new (Polygon, num_polygons);
+ polygon_init_diamond (&model->polygons[0], 250, 300);
+ polygon_init_diamond (&model->polygons[1], 400, 150);
+ polygon_init_rectangle (&model->polygons[2], -100, 200, 200, 250);
+ polygon_init_rectangle (&model->polygons[3], -200, ground_level,
+ 1200, ground_level + 400);
- polygon_init_rectangle (&model->polygons[4], 300, 320, 400, 350);
+ polygon_init_rectangle (&model->polygons[4], 300, 320, 400, 350);
- model->num_polygons = num_polygons;
+ model->num_polygons = num_polygons;
}
static void
model_init_snake (Model *model)
{
- const int num_objects = 20;
- const int num_sticks = num_objects * 2 - 3;
- int i;
-
- memset (model, 0, sizeof *model);
- model->objects = g_new (Object, num_objects);
- model->num_objects = num_objects;
- model->sticks = g_new (Stick, num_sticks);
- model->num_sticks = num_sticks;
- model_init_polygons (model);
-
- for (i = 0; i < num_objects; i++) {
- object_init (&model->objects[i],
- random() % 200 + 20, random() % 200 + 20, 1);
-
- if (i + 1 < num_objects) {
- model->sticks[i * 2].a = &model->objects[i];
- model->sticks[i * 2].b = &model->objects[i + 1];
- model->sticks[i * 2].length = random() % 20 + 20;
- }
- if (i + 2 < num_objects) {
- model->sticks[i * 2 + 1].a = &model->objects[i];
- model->sticks[i * 2 + 1].b = &model->objects[i + 2];
- model->sticks[i * 2 + 1].length = random() % 20 + 20;
- }
- }
+ const int num_objects = 20;
+ const int num_sticks = num_objects * 2 - 3;
+ int i;
+
+ memset (model, 0, sizeof *model);
+ model->objects = g_new (Object, num_objects);
+ model->num_objects = num_objects;
+ model->sticks = g_new (Stick, num_sticks);
+ model->num_sticks = num_sticks;
+ model_init_polygons (model);
+
+ for (i = 0; i < num_objects; i++) {
+ object_init (&model->objects[i],
+ random() % 200 + 20, random() % 200 + 20, 1);
+
+ if (i + 1 < num_objects) {
+ model->sticks[i * 2].a = &model->objects[i];
+ model->sticks[i * 2].b = &model->objects[i + 1];
+ model->sticks[i * 2].length = random() % 20 + 20;
+ }
+ if (i + 2 < num_objects) {
+ model->sticks[i * 2 + 1].a = &model->objects[i];
+ model->sticks[i * 2 + 1].b = &model->objects[i + 2];
+ model->sticks[i * 2 + 1].length = random() % 20 + 20;
+ }
+ }
}
static void
model_init_rope (Model *model)
{
- const int num_objects = 20;
- const int num_sticks = num_objects - 1;
- const int stick_length = 10;
- int i;
-
- memset (model, 0, sizeof *model);
- model->objects = g_new (Object, num_objects);
- model->num_objects = num_objects;
- model->sticks = g_new (Stick, num_sticks);
- model->num_sticks = num_sticks;
- model_init_polygons (model);
-
- for (i = 0; i < num_objects; i++) {
- object_init (&model->objects[i], 200, 40 + i * stick_length, 1);
-
- if (i + 1 < num_objects) {
- model->sticks[i].a = &model->objects[i];
- model->sticks[i].b = &model->objects[i + 1];
- model->sticks[i].length = stick_length;
- }
- }
+ const int num_objects = 20;
+ const int num_sticks = num_objects - 1;
+ const int stick_length = 10;
+ int i;
+
+ memset (model, 0, sizeof *model);
+ model->objects = g_new (Object, num_objects);
+ model->num_objects = num_objects;
+ model->sticks = g_new (Stick, num_sticks);
+ model->num_sticks = num_sticks;
+ model_init_polygons (model);
+
+ for (i = 0; i < num_objects; i++) {
+ object_init (&model->objects[i], 200, 40 + i * stick_length, 1);
+
+ if (i + 1 < num_objects) {
+ model->sticks[i].a = &model->objects[i];
+ model->sticks[i].b = &model->objects[i + 1];
+ model->sticks[i].length = stick_length;
+ }
+ }
}
static void
model_init_curtain (Model *model)
{
- const int num_ropes = 5;
- const int num_rope_objects = 15;
- const int num_objects = num_ropes * num_rope_objects;
- const int num_sticks = num_ropes * (num_rope_objects - 1);
- const int stick_length = 10;
- const int rope_offset = 30;
- double x, y;
- int i, j, index, stick_index;
-
- memset (model, 0, sizeof *model);
- model->objects = g_new (Object, num_objects);
- model->num_objects = num_objects;
- model->sticks = g_new (Stick, num_sticks);
- model->num_sticks = num_sticks;
- model->offsets = g_new (Offset, 1);
- model->num_offsets = 1;
- model_init_polygons (model);
-
- model->offsets[0].num_objects = num_ropes;
- model->offsets[0].objects = g_new (Object *, num_ropes);
- model->offsets[0].dx = rope_offset;
- model->offsets[0].dy = 0;
-
- for (i = 0; i < num_ropes; i++) {
- for (j = 0; j < num_rope_objects; j++) {
- x = 200 + i * rope_offset;
- y = 40 + j * stick_length;
- index = i * num_rope_objects + j;
- object_init (&model->objects[index], x, y, 1);
-
- if (j + 1 < num_rope_objects) {
- stick_index = i * (num_rope_objects - 1) + j;
- model->sticks[stick_index].a = &model->objects[index];
- model->sticks[stick_index].b = &model->objects[index + 1];
- model->sticks[stick_index].length = stick_length;
- }
- }
-
- model->offsets[0].objects[i] = &model->objects[i * num_rope_objects];
- }
+ const int num_ropes = 5;
+ const int num_rope_objects = 15;
+ const int num_objects = num_ropes * num_rope_objects;
+ const int num_sticks = num_ropes * (num_rope_objects - 1);
+ const int stick_length = 10;
+ const int rope_offset = 30;
+ double x, y;
+ int i, j, index, stick_index;
+
+ memset (model, 0, sizeof *model);
+ model->objects = g_new (Object, num_objects);
+ model->num_objects = num_objects;
+ model->sticks = g_new (Stick, num_sticks);
+ model->num_sticks = num_sticks;
+ model->offsets = g_new (Offset, 1);
+ model->num_offsets = 1;
+ model_init_polygons (model);
+
+ model->offsets[0].num_objects = num_ropes;
+ model->offsets[0].objects = g_new (Object *, num_ropes);
+ model->offsets[0].dx = rope_offset;
+ model->offsets[0].dy = 0;
+
+ for (i = 0; i < num_ropes; i++) {
+ for (j = 0; j < num_rope_objects; j++) {
+ x = 200 + i * rope_offset;
+ y = 40 + j * stick_length;
+ index = i * num_rope_objects + j;
+ object_init (&model->objects[index], x, y, 1);
+
+ if (j + 1 < num_rope_objects) {
+ stick_index = i * (num_rope_objects - 1) + j;
+ model->sticks[stick_index].a = &model->objects[index];
+ model->sticks[stick_index].b = &model->objects[index + 1];
+ model->sticks[stick_index].length = stick_length;
+ }
+ }
+
+ model->offsets[0].objects[i] = &model->objects[i * num_rope_objects];
+ }
}
static void
model_init_grid (Model *model)
{
- const int num_ropes = 8;
- const int num_rope_objects = 8;
- const int num_objects = num_ropes * num_rope_objects;
- const int num_strings = num_ropes * (num_rope_objects - 1) +
- (num_ropes - 1) * num_rope_objects;
- const int string_length = 20;
- const int rope_offset = 20;
- Object *object;
- String *string;
- int i, j;
-
- memset (model, 0, sizeof *model);
- model->objects = g_new (Object, num_objects);
- model->num_objects = num_objects;
- model->strings = g_new (String, num_strings);
- model->num_strings = num_strings;
- model->offsets = g_new (Offset, 1);
- model->num_offsets = 1;
- model_init_polygons (model);
-
- model->offsets[0].num_objects = num_ropes;
- model->offsets[0].objects = g_new (Object *, num_ropes);
- model->offsets[0].dx = rope_offset;
- model->offsets[0].dy = 0;
-
- object = model->objects;
- string = model->strings;
- for (i = 0; i < num_ropes; i++) {
- for (j = 0; j < num_rope_objects; j++) {
- object_init (object, 200 + i * rope_offset, 40 + j * string_length, 1);
-
- if (i + 1 < num_ropes)
- string_init (string++,
- object, object + num_rope_objects, string_length);
- if (j + 1 < num_rope_objects)
- string_init (string++, object, object + 1, string_length);
- object++;
- }
-
- model->offsets[0].objects[i] = &model->objects[i * num_rope_objects];
- }
+ const int num_ropes = 8;
+ const int num_rope_objects = 8;
+ const int num_objects = num_ropes * num_rope_objects;
+ const int num_strings = num_ropes * (num_rope_objects - 1) +
+ (num_ropes - 1) * num_rope_objects;
+ const int string_length = 20;
+ const int rope_offset = 20;
+ Object *object;
+ String *string;
+ int i, j;
+
+ memset (model, 0, sizeof *model);
+ model->objects = g_new (Object, num_objects);
+ model->num_objects = num_objects;
+ model->strings = g_new (String, num_strings);
+ model->num_strings = num_strings;
+ model->offsets = g_new (Offset, 1);
+ model->num_offsets = 1;
+ model_init_polygons (model);
+
+ model->offsets[0].num_objects = num_ropes;
+ model->offsets[0].objects = g_new (Object *, num_ropes);
+ model->offsets[0].dx = rope_offset;
+ model->offsets[0].dy = 0;
+
+ object = model->objects;
+ string = model->strings;
+ for (i = 0; i < num_ropes; i++) {
+ for (j = 0; j < num_rope_objects; j++) {
+ object_init (object, 200 + i * rope_offset, 40 + j * string_length, 1);
+
+ if (i + 1 < num_ropes)
+ string_init (string++,
+ object, object + num_rope_objects, string_length);
+ if (j + 1 < num_rope_objects)
+ string_init (string++, object, object + 1, string_length);
+ object++;
+ }
+
+ model->offsets[0].objects[i] = &model->objects[i * num_rope_objects];
+ }
}
static void
model_init_molecule (Model *model)
{
- const int num_objects = 8;
- const int num_springs = num_objects * 2;
- const int spring_length = 50;
- int i;
- Spring *spring;
-
- memset (model, 0, sizeof *model);
- model->objects = g_new (Object, num_objects);
- model->num_objects = num_objects;
- model->springs = g_new (Spring, num_springs);
- model->num_springs = num_springs;
- model->k = 2;
-
- for (i = 0; i < num_objects; i++)
- object_init (&model->objects[i], 200 + i * 20, 200, 0);
-
- spring = model->springs;
- for (i = 0; i < num_objects; i++) {
- spring_init (spring++, &model->objects[i],
- &model->objects[(i + 1) % num_objects],
- spring_length);
- spring_init (spring++, &model->objects[i],
- &model->objects[(i + 2) % num_objects],
- spring_length);
- }
+ const int num_objects = 8;
+ const int num_springs = num_objects * 2;
+ const int spring_length = 50;
+ int i;
+ Spring *spring;
+
+ memset (model, 0, sizeof *model);
+ model->objects = g_new (Object, num_objects);
+ model->num_objects = num_objects;
+ model->springs = g_new (Spring, num_springs);
+ model->num_springs = num_springs;
+ model->k = 2;
+
+ for (i = 0; i < num_objects; i++)
+ object_init (&model->objects[i], 200 + i * 20, 200, 0);
+
+ spring = model->springs;
+ for (i = 0; i < num_objects; i++) {
+ spring_init (spring++, &model->objects[i],
+ &model->objects[(i + 1) % num_objects],
+ spring_length);
+ spring_init (spring++, &model->objects[i],
+ &model->objects[(i + 2) % num_objects],
+ spring_length);
+ }
}
static void
model_init_wobbly (Model *model)
{
- const int width = 8, height = 8;
- const int num_objects = width * height;
- const int num_offset_springs = (width - 1) * height + width * (height - 1);
- const int distance = 30;
- double x, y;
- int i, j;
- Object *object;
- OffsetSpring *spring;
-
- memset (model, 0, sizeof *model);
- model->objects = g_new (Object, num_objects);
- model->num_objects = num_objects;
- model->offset_springs = g_new (OffsetSpring, num_offset_springs);
- model->num_offset_springs = num_offset_springs;
- model->k = 4.5;
-
- model_init_polygons (model);
-
- object = model->objects;
- spring = model->offset_springs;
- for (i = 0; i < width; i++) {
- for (j = 0; j < height; j++) {
- x = 200 + i * distance;
- y = 40 + j * distance;
- object_init (object, x, y, 0);
-
- if (i + 1 < width)
- offset_spring_init (spring++, object, object + height, distance, 0);
+ const int width = 8, height = 8;
+ const int num_objects = width * height;
+ const int num_offset_springs = (width - 1) * height + width * (height - 1);
+ const int distance = 30;
+ double x, y;
+ int i, j;
+ Object *object;
+ OffsetSpring *spring;
+
+ memset (model, 0, sizeof *model);
+ model->objects = g_new (Object, num_objects);
+ model->num_objects = num_objects;
+ model->offset_springs = g_new (OffsetSpring, num_offset_springs);
+ model->num_offset_springs = num_offset_springs;
+ model->k = 4.5;
+
+ model_init_polygons (model);
+
+ object = model->objects;
+ spring = model->offset_springs;
+ for (i = 0; i < width; i++) {
+ for (j = 0; j < height; j++) {
+ x = 200 + i * distance;
+ y = 40 + j * distance;
+ object_init (object, x, y, 0);
+
+ if (i + 1 < width)
+ offset_spring_init (spring++, object, object + height, distance, 0);
- if (j + 1 < height)
- offset_spring_init (spring++, object, object + 1, 0, distance);
+ if (j + 1 < height)
+ offset_spring_init (spring++, object, object + 1, 0, distance);
- object++;
- }
- }
+ object++;
+ }
+ }
}
static void
model_init_dock (Model *model)
{
- const int num_objects = 8;
- const int num_spacers = (num_objects - 1) * (num_objects - 2) / 2;
- const int num_springs = num_objects - 1;
- const int distance = 30;
- double x, y;
- int i, j;
- Object *object;
- Spring *spring;
- Spacer *spacer;
-
- memset (model, 0, sizeof *model);
- model->objects = g_new (Object, num_objects);
- model->num_objects = num_objects;
- model->springs = g_new (Spring, num_springs);
- model->num_springs = num_springs;
- model->spacers = g_new (Spacer, num_spacers);
- model->num_spacers = num_spacers;
- model->anchors = g_new (Anchor, 1);
- model->num_anchors = 1;
- model->k = 0.1;
-
- model->polygons = g_new (Polygon, 1);
- model->num_polygons = 1;
- polygon_init_enclosing_rectangle (&model->polygons[0], 10, 10, 700, 500);
-
- model->anchors[0].x = 300;
- model->anchors[0].y = 300;
- model->anchors[0].object = &model->objects[0];
-
- object = model->objects;
- spring = model->springs;
- spacer = model->spacers;
- for (i = 0; i < num_objects; i++, object++) {
- x = 200 + i * distance / 3;
- y = 40;
- object_init (object, x, y, 1);
- if (i == 0)
- continue;
- spring_init (spring++,
- &model->objects[0],
- &model->objects[i],
- distance);
- for (j = 1; j < num_objects - i; j++) {
- spacer_init (spacer++, object, object + j, distance);
- }
- }
+ const int num_objects = 8;
+ const int num_spacers = (num_objects - 1) * (num_objects - 2) / 2;
+ const int num_springs = num_objects - 1;
+ const int distance = 30;
+ double x, y;
+ int i, j;
+ Object *object;
+ Spring *spring;
+ Spacer *spacer;
+
+ memset (model, 0, sizeof *model);
+ model->objects = g_new (Object, num_objects);
+ model->num_objects = num_objects;
+ model->springs = g_new (Spring, num_springs);
+ model->num_springs = num_springs;
+ model->spacers = g_new (Spacer, num_spacers);
+ model->num_spacers = num_spacers;
+ model->anchors = g_new (Anchor, 1);
+ model->num_anchors = 1;
+ model->k = 0.1;
+
+ model->polygons = g_new (Polygon, 1);
+ model->num_polygons = 1;
+ polygon_init_enclosing_rectangle (&model->polygons[0], 10, 10, 700, 500);
+
+ model->anchors[0].x = 300;
+ model->anchors[0].y = 300;
+ model->anchors[0].object = &model->objects[0];
+
+ object = model->objects;
+ spring = model->springs;
+ spacer = model->spacers;
+ for (i = 0; i < num_objects; i++, object++) {
+ x = 200 + i * distance / 3;
+ y = 40;
+ object_init (object, x, y, 1);
+ if (i == 0)
+ continue;
+ spring_init (spring++,
+ &model->objects[0],
+ &model->objects[i],
+ distance);
+ for (j = 1; j < num_objects - i; j++) {
+ spacer_init (spacer++, object, object + j, distance);
+ }
+ }
}
typedef struct _Color Color;
struct _Color {
- double red, green, blue;
+ double red, green, blue;
};
static void
Model *model,
Color *color)
{
- int i;
-
- cairo_set_source_rgba (cr, color->red, color->green, color->blue, 1);
- cairo_new_path (cr);
- cairo_set_line_width (cr, 2);
- cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
- cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
-
- for (i = 0; i < model->num_sticks; i++) {
- cairo_move_to (cr,
- model->sticks[i].a->position.x,
- model->sticks[i].a->position.y);
- cairo_line_to (cr,
- model->sticks[i].b->position.x,
- model->sticks[i].b->position.y);
- }
-
- cairo_stroke (cr);
+ int i;
+
+ cairo_set_source_rgba (cr, color->red, color->green, color->blue, 1);
+ cairo_new_path (cr);
+ cairo_set_line_width (cr, 2);
+ cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
+ cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
+
+ for (i = 0; i < model->num_sticks; i++) {
+ cairo_move_to (cr,
+ model->sticks[i].a->position.x,
+ model->sticks[i].a->position.y);
+ cairo_line_to (cr,
+ model->sticks[i].b->position.x,
+ model->sticks[i].b->position.y);
+ }
+
+ cairo_stroke (cr);
}
static void
Model *model,
Color *color)
{
- int i;
-
- cairo_set_source_rgba (cr, color->red, color->green, color->blue, 1);
- cairo_new_path (cr);
- cairo_set_line_width (cr, 1);
- cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
- cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
-
- for (i = 0; i < model->num_strings; i++) {
- cairo_move_to (cr,
- model->strings[i].a->position.x,
- model->strings[i].a->position.y);
- cairo_line_to (cr,
- model->strings[i].b->position.x,
- model->strings[i].b->position.y);
- }
-
- cairo_stroke (cr);
+ int i;
+
+ cairo_set_source_rgba (cr, color->red, color->green, color->blue, 1);
+ cairo_new_path (cr);
+ cairo_set_line_width (cr, 1);
+ cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
+ cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
+
+ for (i = 0; i < model->num_strings; i++) {
+ cairo_move_to (cr,
+ model->strings[i].a->position.x,
+ model->strings[i].a->position.y);
+ cairo_line_to (cr,
+ model->strings[i].b->position.x,
+ model->strings[i].b->position.y);
+ }
+
+ cairo_stroke (cr);
}
static void
Model *model,
Color *color)
{
- int i, j;
-
- cairo_set_source_rgba (cr, color->red, color->green, color->blue, 0.5);
- cairo_new_path (cr);
- cairo_set_line_width (cr, 4);
- cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
- cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
-
- for (i = 0; i < model->num_offsets; i++) {
- for (j = 0; j < model->offsets[i].num_objects; j++) {
- cairo_line_to (cr,
- model->offsets[i].objects[j]->position.x,
- model->offsets[i].objects[j]->position.y);
- }
- cairo_stroke (cr);
- }
+ int i, j;
+
+ cairo_set_source_rgba (cr, color->red, color->green, color->blue, 0.5);
+ cairo_new_path (cr);
+ cairo_set_line_width (cr, 4);
+ cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
+ cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
+
+ for (i = 0; i < model->num_offsets; i++) {
+ for (j = 0; j < model->offsets[i].num_objects; j++) {
+ cairo_line_to (cr,
+ model->offsets[i].objects[j]->position.x,
+ model->offsets[i].objects[j]->position.y);
+ }
+ cairo_stroke (cr);
+ }
}
Model *model,
Color *color)
{
- int i;
-
- cairo_set_source_rgba (cr, color->red, color->green, color->blue, 0.4);
- cairo_new_path (cr);
- cairo_set_line_width (cr, 2);
- cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
- cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
-
- for (i = 0; i < model->num_springs; i++) {
- cairo_move_to (cr,
- model->springs[i].a->position.x,
- model->springs[i].a->position.y);
- cairo_line_to (cr,
- model->springs[i].b->position.x,
- model->springs[i].b->position.y);
- }
-
- cairo_stroke (cr);
+ int i;
+
+ cairo_set_source_rgba (cr, color->red, color->green, color->blue, 0.4);
+ cairo_new_path (cr);
+ cairo_set_line_width (cr, 2);
+ cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
+ cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
+
+ for (i = 0; i < model->num_springs; i++) {
+ cairo_move_to (cr,
+ model->springs[i].a->position.x,
+ model->springs[i].a->position.y);
+ cairo_line_to (cr,
+ model->springs[i].b->position.x,
+ model->springs[i].b->position.y);
+ }
+
+ cairo_stroke (cr);
}
static void
Model *model,
Color *color)
{
- int i;
-
- cairo_set_source_rgba (cr, color->red, color->green, color->blue, 0.4);
- cairo_new_path (cr);
- cairo_set_line_width (cr, 2);
- cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
- cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
-
- for (i = 0; i < model->num_offset_springs; i++) {
- cairo_move_to (cr,
- model->offset_springs[i].a->position.x,
- model->offset_springs[i].a->position.y);
- cairo_line_to (cr,
- model->offset_springs[i].b->position.x,
- model->offset_springs[i].b->position.y);
- }
-
- cairo_stroke (cr);
+ int i;
+
+ cairo_set_source_rgba (cr, color->red, color->green, color->blue, 0.4);
+ cairo_new_path (cr);
+ cairo_set_line_width (cr, 2);
+ cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
+ cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
+
+ for (i = 0; i < model->num_offset_springs; i++) {
+ cairo_move_to (cr,
+ model->offset_springs[i].a->position.x,
+ model->offset_springs[i].a->position.y);
+ cairo_line_to (cr,
+ model->offset_springs[i].b->position.x,
+ model->offset_springs[i].b->position.y);
+ }
+
+ cairo_stroke (cr);
}
static void
draw_polygons (cairo_t *cr, Model *model, Color *color)
{
- Polygon *p;
- int i, j;
+ Polygon *p;
+ int i, j;
- for (i = 0; i < model->num_polygons; i++) {
- p = &model->polygons[i];
+ for (i = 0; i < model->num_polygons; i++) {
+ p = &model->polygons[i];
- for (j = 0; j < p->num_points; j++)
- cairo_line_to (cr, p->points[j].x, p->points[j].y);
- cairo_close_path (cr);
-
- if (p->enclosing) {
- cairo_set_source_rgba (cr, color->red, color->green, color->blue, 0.1);
- cairo_fill_preserve (cr);
- }
-
- cairo_set_source_rgba (cr, color->red, color->green, color->blue, 0.4);
- if (p->enclosing)
- cairo_stroke (cr);
- else
- cairo_fill (cr);
- }
+ for (j = 0; j < p->num_points; j++)
+ cairo_line_to (cr, p->points[j].x, p->points[j].y);
+ cairo_close_path (cr);
+
+ if (p->enclosing) {
+ cairo_set_source_rgba (cr, color->red, color->green, color->blue, 0.1);
+ cairo_fill_preserve (cr);
+ }
+
+ cairo_set_source_rgba (cr, color->red, color->green, color->blue, 0.4);
+ if (p->enclosing)
+ cairo_stroke (cr);
+ else
+ cairo_fill (cr);
+ }
}
static void
draw_objects (cairo_t *cr, Model *model, Color *color)
{
- int i;
-
- cairo_set_source_rgba (cr, color->red, color->green, color->blue, 0.4);
- for (i = 0; i < model->num_objects; i++) {
- cairo_arc (cr, model->objects[i].position.x,
- model->objects[i].position.y,
- 3, 0, 2*M_PI);
- cairo_fill (cr);
- }
+ int i;
+
+ cairo_set_source_rgba (cr, color->red, color->green, color->blue, 0.4);
+ for (i = 0; i < model->num_objects; i++) {
+ cairo_arc (cr, model->objects[i].position.x,
+ model->objects[i].position.y,
+ 3, 0, 2*M_PI);
+ cairo_fill (cr);
+ }
}
static Color blue = { 0, 0, 1 };
typedef struct _Closure Closure;
struct _Closure {
- GtkWidget *drawing_area;
- GtkWidget *fps_label;
- Model *model;
- int frame_count;
- int i;
- struct timeval start;
+ GtkWidget *drawing_area;
+ GtkWidget *fps_label;
+ Model *model;
+ int frame_count;
+ int i;
+ struct timeval start;
};
static void
draw_model (GtkWidget *widget, Model *model)
{
- cairo_t *cr;
+ cairo_t *cr;
- cr = gdk_cairo_create (widget->window);
+ cr = gdk_cairo_create (widget->window);
- cairo_set_source_rgb (cr, 1, 1, 1);
- cairo_paint (cr);
+ cairo_set_source_rgb (cr, 1, 1, 1);
+ cairo_paint (cr);
- draw_polygons (cr, model, &blue);
- draw_sticks (cr, model, &black);
- draw_strings (cr, model, &green);
- draw_springs (cr, model, &black);
- draw_offsets (cr, model, &blue);
- draw_offset_springs (cr, model, &blue);
- draw_objects (cr, model, &red);
+ draw_polygons (cr, model, &blue);
+ draw_sticks (cr, model, &black);
+ draw_strings (cr, model, &green);
+ draw_springs (cr, model, &black);
+ draw_offsets (cr, model, &blue);
+ draw_offset_springs (cr, model, &blue);
+ draw_objects (cr, model, &red);
- cairo_destroy (cr);
+ cairo_destroy (cr);
}
static gboolean
GdkEventExpose *event,
gpointer data)
{
- Closure *closure = data;
+ Closure *closure = data;
- draw_model (widget, closure->model);
+ draw_model (widget, closure->model);
- return TRUE;
+ return TRUE;
}
static gboolean
GdkEventButton *event,
gpointer data)
{
- Closure *closure = data;
+ Closure *closure = data;
- if (event->button != 1)
- return TRUE;
+ if (event->button != 1)
+ return TRUE;
- closure->model->mouse_anchor.x = event->x;
- closure->model->mouse_anchor.y = event->y;
- closure->model->mouse_anchor.object =
- model_find_nearest (closure->model, event->x, event->y);
+ closure->model->mouse_anchor.x = event->x;
+ closure->model->mouse_anchor.y = event->y;
+ closure->model->mouse_anchor.object =
+ model_find_nearest (closure->model, event->x, event->y);
- return TRUE;
+ return TRUE;
}
static gboolean
GdkEventButton *event,
gpointer data)
{
- Closure *closure = data;
+ Closure *closure = data;
- if ((event->state & GDK_BUTTON1_MASK) == 0)
- return TRUE;
+ if ((event->state & GDK_BUTTON1_MASK) == 0)
+ return TRUE;
- closure->model->mouse_anchor.object = NULL;
+ closure->model->mouse_anchor.object = NULL;
- return TRUE;
+ return TRUE;
}
static gboolean
GdkEventMotion *event,
gpointer data)
{
- Closure *closure = data;
- int x, y;
- GdkModifierType state;
+ Closure *closure = data;
+ int x, y;
+ GdkModifierType state;
- gdk_window_get_pointer (event->window, &x, &y, &state);
+ gdk_window_get_pointer (event->window, &x, &y, &state);
- closure->model->mouse_anchor.x = x + 0.5;
- closure->model->mouse_anchor.y = y + 0.5;
+ closure->model->mouse_anchor.x = x + 0.5;
+ closure->model->mouse_anchor.y = y + 0.5;
- return TRUE;
+ return TRUE;
}
typedef void (*ModelInitFunc) (Model *model);
static void
model_changed (GtkComboBox *combo, gpointer user_data)
{
- Closure *closure = user_data;
- GtkTreeIter iter;
- GtkTreeModel *tree_model;
- ModelInitFunc init;
- char *name;
+ Closure *closure = user_data;
+ GtkTreeIter iter;
+ GtkTreeModel *tree_model;
+ ModelInitFunc init;
+ char *name;
- tree_model = gtk_combo_box_get_model (combo);
- if (!gtk_combo_box_get_active_iter (combo, &iter))
- return;
+ tree_model = gtk_combo_box_get_model (combo);
+ if (!gtk_combo_box_get_active_iter (combo, &iter))
+ return;
- gtk_tree_model_get (tree_model, &iter, 0, &name, 1, &init, -1);
+ gtk_tree_model_get (tree_model, &iter, 0, &name, 1, &init, -1);
- model_fini (closure->model);
- (*init) (closure->model);
+ model_fini (closure->model);
+ (*init) (closure->model);
}
static GtkTreeModel *
create_model_store (void)
{
- static struct {
- const char *name;
- ModelInitFunc init;
- } models[] = {
- { "Rope", model_init_rope },
- { "Snake", model_init_snake },
- { "Curtain", model_init_curtain },
- { "Grid", model_init_grid },
- { "Molecule", model_init_molecule },
- { "Wobbly", model_init_wobbly },
- { "Dock", model_init_dock }
- };
-
- GtkTreeIter iter;
- GtkTreeStore *store;
- gint i;
-
- store = gtk_tree_store_new (2, G_TYPE_STRING, G_TYPE_POINTER);
-
- for (i = 0; i < G_N_ELEMENTS(models); i++) {
- gtk_tree_store_append (store, &iter, NULL);
- gtk_tree_store_set (store, &iter,
- 0, models[i].name, 1, models[i].init, -1);
- }
+ static struct {
+ const char *name;
+ ModelInitFunc init;
+ } models[] = {
+ { "Rope", model_init_rope },
+ { "Snake", model_init_snake },
+ { "Curtain", model_init_curtain },
+ { "Grid", model_init_grid },
+ { "Molecule", model_init_molecule },
+ { "Wobbly", model_init_wobbly },
+ { "Dock", model_init_dock }
+ };
+
+ GtkTreeIter iter;
+ GtkTreeStore *store;
+ gint i;
+
+ store = gtk_tree_store_new (2, G_TYPE_STRING, G_TYPE_POINTER);
+
+ for (i = 0; i < G_N_ELEMENTS(models); i++) {
+ gtk_tree_store_append (store, &iter, NULL);
+ gtk_tree_store_set (store, &iter,
+ 0, models[i].name, 1, models[i].init, -1);
+ }
- return GTK_TREE_MODEL (store);
+ return GTK_TREE_MODEL (store);
}
static GtkWidget *
create_model_combo (Closure *closure)
{
- GtkWidget *hbox;
- GtkWidget *combo, *label;
- GtkTreeModel *store;
- GtkCellRenderer *renderer;
+ GtkWidget *hbox;
+ GtkWidget *combo, *label;
+ GtkTreeModel *store;
+ GtkCellRenderer *renderer;
- hbox = gtk_hbox_new (FALSE, 8);
+ hbox = gtk_hbox_new (FALSE, 8);
- label = gtk_label_new_with_mnemonic ("_Model:");
- gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
+ label = gtk_label_new_with_mnemonic ("_Model:");
+ gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
- store = create_model_store ();
- combo = gtk_combo_box_new_with_model (store);
- gtk_combo_box_set_active (GTK_COMBO_BOX (combo), 0);
- g_object_unref (store);
+ store = create_model_store ();
+ combo = gtk_combo_box_new_with_model (store);
+ gtk_combo_box_set_active (GTK_COMBO_BOX (combo), 0);
+ g_object_unref (store);
- renderer = gtk_cell_renderer_text_new ();
- gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (combo), renderer, TRUE);
- gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (combo), renderer,
- "text", 0,
- NULL);
+ renderer = gtk_cell_renderer_text_new ();
+ gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (combo), renderer, TRUE);
+ gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (combo), renderer,
+ "text", 0,
+ NULL);
- gtk_label_set_mnemonic_widget (GTK_LABEL (label), combo);
- gtk_box_pack_start (GTK_BOX (hbox), combo, FALSE, FALSE, 0);
- g_signal_connect (combo, "changed",
- G_CALLBACK (model_changed), closure);
+ gtk_label_set_mnemonic_widget (GTK_LABEL (label), combo);
+ gtk_box_pack_start (GTK_BOX (hbox), combo, FALSE, FALSE, 0);
+ g_signal_connect (combo, "changed",
+ G_CALLBACK (model_changed), closure);
- label = gtk_label_new ("Frames per second: 0");
- gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
+ label = gtk_label_new ("Frames per second: 0");
+ gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
- closure->fps_label = label;
+ closure->fps_label = label;
- return hbox;
+ return hbox;
}
static void
create_window (Closure *closure)
{
- GtkWidget *window;
- GtkWidget *frame;
- GtkWidget *vbox;
- GtkWidget *da;
- GtkWidget *model_combo;
+ GtkWidget *window;
+ GtkWidget *frame;
+ GtkWidget *vbox;
+ GtkWidget *da;
+ GtkWidget *model_combo;
- window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
- gtk_window_set_title (GTK_WINDOW (window), "赤丸");
+ window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+ gtk_window_set_title (GTK_WINDOW (window), "赤丸");
- g_signal_connect (window, "destroy",
- G_CALLBACK (gtk_main_quit), &window);
+ g_signal_connect (window, "destroy",
+ G_CALLBACK (gtk_main_quit), &window);
- gtk_container_set_border_width (GTK_CONTAINER (window), 8);
+ gtk_container_set_border_width (GTK_CONTAINER (window), 8);
- vbox = gtk_vbox_new (FALSE, 8);
- gtk_container_set_border_width (GTK_CONTAINER (vbox), 8);
- gtk_container_add (GTK_CONTAINER (window), vbox);
+ vbox = gtk_vbox_new (FALSE, 8);
+ gtk_container_set_border_width (GTK_CONTAINER (vbox), 8);
+ gtk_container_add (GTK_CONTAINER (window), vbox);
- /*
- * Create the drawing area
- */
+ /*
+ * Create the drawing area
+ */
- frame = gtk_frame_new (NULL);
- gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
- gtk_box_pack_start (GTK_BOX (vbox), frame, TRUE, TRUE, 0);
+ frame = gtk_frame_new (NULL);
+ gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
+ gtk_box_pack_start (GTK_BOX (vbox), frame, TRUE, TRUE, 0);
- da = gtk_drawing_area_new ();
- /* set a minimum size */
- gtk_widget_set_size_request (da, 200, 200);
+ da = gtk_drawing_area_new ();
+ /* set a minimum size */
+ gtk_widget_set_size_request (da, 200, 200);
- gtk_container_add (GTK_CONTAINER (frame), da);
+ gtk_container_add (GTK_CONTAINER (frame), da);
- /* Signals used to handle backing pixmap */
+ /* Signals used to handle backing pixmap */
- g_signal_connect (da, "expose_event",
- G_CALLBACK (expose_event), closure);
+ g_signal_connect (da, "expose_event",
+ G_CALLBACK (expose_event), closure);
- /* Event signals */
+ /* Event signals */
- g_signal_connect (da, "motion_notify_event",
- G_CALLBACK (motion_notify_event), closure);
- g_signal_connect (da, "button_press_event",
- G_CALLBACK (button_press_event), closure);
- g_signal_connect (da, "button_release_event",
- G_CALLBACK (button_release_event), closure);
-
- /* Ask to receive events the drawing area doesn't normally
- * subscribe to
- */
- gtk_widget_set_events (da, gtk_widget_get_events (da)
- | GDK_LEAVE_NOTIFY_MASK
- | GDK_BUTTON_PRESS_MASK
- | GDK_BUTTON_RELEASE_MASK
- | GDK_POINTER_MOTION_MASK
- | GDK_POINTER_MOTION_HINT_MASK);
-
- model_combo = create_model_combo (closure);
- gtk_box_pack_start (GTK_BOX (vbox), model_combo, FALSE, FALSE, 0);
-
- closure->drawing_area = da;
+ g_signal_connect (da, "motion_notify_event",
+ G_CALLBACK (motion_notify_event), closure);
+ g_signal_connect (da, "button_press_event",
+ G_CALLBACK (button_press_event), closure);
+ g_signal_connect (da, "button_release_event",
+ G_CALLBACK (button_release_event), closure);
+
+ /* Ask to receive events the drawing area doesn't normally
+ * subscribe to
+ */
+ gtk_widget_set_events (da, gtk_widget_get_events (da)
+ | GDK_LEAVE_NOTIFY_MASK
+ | GDK_BUTTON_PRESS_MASK
+ | GDK_BUTTON_RELEASE_MASK
+ | GDK_POINTER_MOTION_MASK
+ | GDK_POINTER_MOTION_HINT_MASK);
+
+ model_combo = create_model_combo (closure);
+ gtk_box_pack_start (GTK_BOX (vbox), model_combo, FALSE, FALSE, 0);
+
+ closure->drawing_area = da;
}
static gint
timeout_callback (gpointer data)
{
- Closure *closure = data;
-
- model_step (closure->model, 0.2);
-
- closure->i++;
- if (closure->i == 1) {
- gtk_widget_queue_draw (closure->drawing_area);
- closure->i = 0;
- closure->frame_count++;
- }
-
- if (closure->frame_count == 200) {
- struct timeval end, elapsed;
- double total;
- char text[50];
-
- closure->frame_count = 0;
- gettimeofday (&end, NULL);
- if (closure->start.tv_usec > end.tv_usec) {
- end.tv_usec += 1000000;
- end.tv_sec--;
- }
-
- elapsed.tv_usec = end.tv_usec - closure->start.tv_usec;
- elapsed.tv_sec = end.tv_sec - closure->start.tv_sec;
-
- total = elapsed.tv_sec + ((double) elapsed.tv_usec / 1e6);
- if (total < 0) {
- total = 0;
- }
- closure->start = end;
- snprintf (text, sizeof text, "Frames per second: %.2f", 200 / total);
- gtk_label_set_text (GTK_LABEL (closure->fps_label), text);
- }
-
- return TRUE;
+ Closure *closure = data;
+
+ model_step (closure->model, 0.2);
+
+ closure->i++;
+ if (closure->i == 1) {
+ gtk_widget_queue_draw (closure->drawing_area);
+ closure->i = 0;
+ closure->frame_count++;
+ }
+
+ if (closure->frame_count == 200) {
+ struct timeval end, elapsed;
+ double total;
+ char text[50];
+
+ closure->frame_count = 0;
+ gettimeofday (&end, NULL);
+ if (closure->start.tv_usec > end.tv_usec) {
+ end.tv_usec += 1000000;
+ end.tv_sec--;
+ }
+
+ elapsed.tv_usec = end.tv_usec - closure->start.tv_usec;
+ elapsed.tv_sec = end.tv_sec - closure->start.tv_sec;
+
+ total = elapsed.tv_sec + ((double) elapsed.tv_usec / 1e6);
+ if (total < 0) {
+ total = 0;
+ }
+ closure->start = end;
+ snprintf (text, sizeof text, "Frames per second: %.2f", 200 / total);
+ gtk_label_set_text (GTK_LABEL (closure->fps_label), text);
+ }
+
+ return TRUE;
}
int
main (int argc, char *argv[])
{
- Closure closure;
- Model model;
-
- gtk_init (&argc, &argv);
- model_init_rope (&model);
- create_window (&closure);
- closure.i = 0;
- gtk_widget_show_all (gtk_widget_get_toplevel (closure.drawing_area));
- closure.model = &model;
- closure.frame_count = 0;
- gettimeofday (&closure.start, NULL);
- g_timeout_add (40, timeout_callback, &closure);
- gtk_main ();
-
- return 0;
+ Closure closure;
+ Model model;
+
+ gtk_init (&argc, &argv);
+ model_init_rope (&model);
+ create_window (&closure);
+ closure.i = 0;
+ gtk_widget_show_all (gtk_widget_get_toplevel (closure.drawing_area));
+ closure.model = &model;
+ closure.frame_count = 0;
+ gettimeofday (&closure.start, NULL);
+ g_timeout_add (40, timeout_callback, &closure);
+ gtk_main ();
+
+ return 0;
}
projects / akamaru / blobdiff