basic drawing widget, nothing drawn for now

[lttv.git] / ltt / branches / poly / lttv / modules / guiControlFlow / Drawing.h

diff --git a/ltt/branches/poly/lttv/modules/guiControlFlow/Drawing.h b/ltt/branches/poly/lttv/modules/guiControlFlow/Drawing.h
index 00d928d426c1b3b03c5441b088c401e31e49b5b5..8fb20c20cc599d4999f419afb63a627f57a9b023 100644 (file)
--- a/ltt/branches/poly/lttv/modules/guiControlFlow/Drawing.h
+++ b/ltt/branches/poly/lttv/modules/guiControlFlow/Drawing.h
@@ -1,33 +1,50 @@
 #ifndef _DRAWING_H
 #define _DRAWING_H
 
-#include <time.h>
+#include <glib.h>
+#include <gdk/gdk.h>
+#include <gtk/gtk.h>
+#include <ltt/ltt.h>
+
+/* 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)
+ *
+ * A helper function is provided here to convert from time and process
+ * identifier to pixels and the contrary (will be useful for mouse selection).
+ */
 
-typedef time_t ltt_time;
+typedef struct _Drawing_t Drawing_t;
 
-typedef struct _ltt_time_interval
-{
-       ltt_time time_begin, time_end;
-} ltt_time_interval;
+Drawing_t *Drawing_construct(void);
+void Drawing_destroy(Drawing_t *Drawing);
 
+GtkWidget *Drawing_getWidget(Drawing_t *Drawing);
+       
 
+void Drawing_draw_line(        guint x1, guint y1, guint x2, guint y2,
+                       GdkGC *GC);
 
-typedef struct _Drawing_t Drawing_t;
-
-Drawing_t *Drawing(void);
-void Drawing_destroy(Drawing_t *Drawing);
-void Drawing_Resize(Drawing_t *Drawing, guint h, guint, w);
+void Drawing_copy(guint xsrc, guint ysrc,
+               guint xdest, guint ydest,
+               guint width, 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