** Login <solarion@johnathan>
**
-Copyright (C) 2008 Joseph Pingenot
+ Copyright (C) 2008 Joseph Pingenot
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU Lesser General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Affero General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU Lesser General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU Affero General Public License for more details.
-You should have received a copy of the GNU Lesser General Public License
-along with this program. If not, see <http://www.gnu.org/licenses/>.
+ You should have received a copy of the GNU Affero General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
** Started on Thu Jul 17 10:51:32 2008 Johnny Q. Hacker
** Last update Thu Jul 17 10:51:32 2008 Johnny Q. Hacker
*/
-#ifndef GRAPH_H_
-# define GRAPH_H_
+#ifndef GRAPHCLASS_H_
+#define GRAPHCLASS_H_
#include <glib-2.0/glib-object.h>
-enum graph_symbol {
- SQUARE,
- CIRCLE,
- STAR,
- PLUS,
- MINUX,
- CROSS
- };
+typedef enum {SQUARE, CIRCLE, STAR, PLUS, MINUS, CROSS} graph_symbol;
+
+struct graph_point {
+ double x;
+ double y;
+ GString *label;
+};
+
+/*Bezier line*/
+struct graph_line {
+ /*First point*/
+ double p0_x;
+ double p0_y;
+ /*Control pts*/
+ double p1_x;
+ double p1_y;
+ double p2_x;
+ double p2_y;
+ /*End point*/
+ double p3_x;
+ double p3_y;
+};
+
+struct graph_axis {
+ double major_start;
+ double major_step;
+ int major;
+ int minor;
+ int subminor;
+ GString *title;
+};
typedef struct _Graph {
- GObject parent;
+ GObject parent_instance;
/*Array of n_points sets of x,y coords*/
GPtrArray *points;
+ /*This draws all of the lines (generally between points)*/
+ GPtrArray *lines;
double maxx;
double minx;
double maxy;
double miny;
graph_symbol symbol;
+ struct graph_axis *xaxis;
+ struct graph_axis *yaxis;
} Graph;
typedef struct _GraphClass {
- GObject parent;
+ GObjectClass parent_class;
} GraphClass;
#define GRAPH_TYPE (graph_get_type())
#define GRAPH_GET_CLASS (G_TYPE_INSTANCE_GET_CLASS ((obj), GRAPH, GraphClass))
Graph *graph_new(void);
-int graph_add_point(Graph* graph, double x, double y);
+int graph_add_point(Graph* graph, double x, double y, const GString *label);
+int graph_add_graph_point(Graph* graph, struct graph_point *pt);
+int graph_add_line(Graph* graph, double p0_x, double p0_y, double p1_x, double p1_y, double p2_x, double p2_y, double p3_x, double p3_y);
+int graph_add_graph_line(Graph* graph, struct graph_line *l);
+void graph_add_linear_connectors(Graph* graph);
+/*Provide x0, x3; x1 and x2 will be set*/
+void graph_bezier_linear_to_cubic(double x0, double x3, double *x1, double *x2);
+/*Provide x0, x1, x2. x1 and x2 will be set appropriately.*/
+void graph_bezier_quadratic_to_cubic(double x0, double x3, double *x1, double *x2);
+void graph_set_xaxis(Graph *g, struct graph_axis *axis);
+void graph_set_yaxis(Graph *g, struct graph_axis *axis);
+int graph_autoset_xaxis(Graph *g, GString *title);
+int graph_autoset_yaxis(Graph *g, GString *title);
+
+
-#endif /* !GRAPH_H_ */
+#endif /* !GRAPHCLASS_H_ */