#ifndef _DRAWING_H
#define _DRAWING_H
-#include <time.h>
+#include <glib.h>
+#include <gdk/gdk.h>
+#include <gtk/gtk.h>
+#include <ltt/ltt.h>
-typedef time_t ltt_time;
+/* This part of the viewer does :
+ * Draw horizontal lines, getting graphic context as arg.
+ * Copy region of the screen into another.
+ * Modify the boundaries to reflect a scale change. (resize)
+ * Refresh the physical screen with the pixmap
+ * A helper function is provided here to convert from time and process
+ * identifier to pixels and the contrary (will be useful for mouse selection).
+ * Insert an empty square in the drawing, moving the bottom part.
+ *
+ * The pixmap used has the width of the physical window, but the height
+ * of the shown processes.
+ */
-typedef struct _ltt_time_interval
-{
- ltt_time time_begin, time_end;
-} ltt_time_interval;
+typedef struct _Drawing_t Drawing_t;
+Drawing_t *Drawing_construct(void);
+void Drawing_destroy(Drawing_t *Drawing);
+GtkWidget *Drawing_getWidget(Drawing_t *Drawing);
+
+//void Drawing_Refresh ( Drawing_t *Drawing,
+// guint x, guint y,
+// guint width, guint height);
-typedef struct _Drawing_t Drawing_t;
+void Drawing_draw_line( Drawing_t *Drawing,
+ GdkPixmap *Pixmap,
+ guint x1, guint y1,
+ guint x2, guint y2,
+ GdkGC *GC);
-Drawing_t *Drawing(void);
-void Drawing_destroy(Drawing_t *Drawing);
-void Drawing_Resize(Drawing_t *Drawing, guint h, guint, w);
+//void Drawing_copy( Drawing_t *Drawing,
+// guint xsrc, guint ysrc,
+// guint xdest, guint ydest,
+// guint width, guint height);
+
+/* Insert a square corresponding to a new process in the list */
+void Drawing_Insert_Square(Drawing_t *Drawing,
+ guint y,
+ guint height);
+
+/* Remove a square corresponding to a removed process in the list */
+void Drawing_Remove_Square(Drawing_t *Drawing,
+ guint y,
+ guint height);
+//void Drawing_Resize(Drawing_t *Drawing, guint h, guint w);
-void get_time_from_pixels(
- guint area_x,
- guint area_width,
- guint window_width,
- ltt_time &window_time_begin,
- ltt_time &window_time_end,
- ltt_time &time_begin,
- ltt_time &time_end);
+void convert_pixels_to_time(
+ Drawing_t *Drawing,
+ guint x,
+ LttTime *window_time_begin,
+ LttTime *window_time_end,
+ LttTime *begin);
+void convert_time_to_pixels(
+ LttTime window_time_begin,
+ LttTime window_time_end,
+ LttTime time,
+ Drawing_t *Drawing,
+ guint *x);
#endif // _DRAWING_H