1 /* This file is part of the Linux Trace Toolkit viewer
2 * Copyright (C) 2003-2004 Mathieu Desnoyers
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License Version 2 as
6 * published by the Free Software Foundation;
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
27 #include <lttv/tracecontext.h>
28 #include <lttv/state.h>
29 #include <lttvwindow/lttvwindow.h>
34 #define SAFETY 50 // safety pixels at right and bottom of pixmap buffer
36 /* This part of the viewer does :
37 * Draw horizontal lines, getting graphic context as arg.
38 * Copy region of the screen into another.
39 * Modify the boundaries to reflect a scale change. (resize)
40 * Refresh the physical screen with the pixmap
41 * A helper function is provided here to convert from time to process
42 * identifier to pixels and the contrary (will be useful for mouse selection).
43 * Insert an empty square in the drawing, moving the bottom part.
45 * Note: The last point is exactly why it would not be so easy to add the
46 * vertical line functionnality as in the original version of LTT. In order
47 * to do so, we should keep all processes in the list for the duration of
48 * all the trace instead of dynamically adding and removing them when we
49 * scroll. Another possibility is to redraw all the visible area when a new
50 * process is added to the list. The second solution seems more appropriate
54 * The pixmap used has the width of the physical window, but the height
55 * of the shown processes.
58 typedef struct _Drawing_t Drawing_t
;
62 GtkWidget
*drawing_area
;
65 ControlFlowData
*control_flow_data
;
67 PangoLayout
*pango_layout
;
69 gint height
, width
, depth
;
71 /* X coordinate of damaged region */
72 gint damage_begin
, damage_end
;
77 Drawing_t
*drawing_construct(ControlFlowData
*control_flow_data
);
78 void drawing_destroy(Drawing_t
*drawing
);
80 GtkWidget
*drawing_get_widget(Drawing_t
*drawing
);
81 GtkWidget
*drawing_get_drawing_area(Drawing_t
*drawing
);
83 void drawing_draw_line( Drawing_t
*drawing
,
89 //void drawing_copy( Drawing_t *drawing,
90 // guint xsrc, guint ysrc,
91 // guint xdest, guint ydest,
92 // guint width, guint height);
94 /* Insert a square corresponding to a new process in the list */
95 void drawing_insert_square(Drawing_t
*drawing
,
99 /* Remove a square corresponding to a removed process in the list */
100 void drawing_remove_square(Drawing_t
*drawing
,
105 void convert_pixels_to_time(
108 LttTime window_time_begin
,
109 LttTime window_time_end
,
112 void convert_time_to_pixels(
113 LttTime window_time_begin
,
114 LttTime window_time_end
,
119 void drawing_update_ruler(Drawing_t
*drawing
, TimeWindow
*time_window
);
121 void drawing_data_request_end(EventsRequest
*events_request
, LttvTracesetState
*tss
);