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,
31 #define SAFETY 50 // safety pixels at right and bottom of pixmap buffer
33 /* This part of the viewer does :
34 * Draw horizontal lines, getting graphic context as arg.
35 * Copy region of the screen into another.
36 * Modify the boundaries to reflect a scale change. (resize)
37 * Refresh the physical screen with the pixmap
38 * A helper function is provided here to convert from time to process
39 * identifier to pixels and the contrary (will be useful for mouse selection).
40 * Insert an empty square in the drawing, moving the bottom part.
42 * Note: The last point is exactly why it would not be so easy to add the
43 * vertical line functionnality as in the original version of LTT. In order
44 * to do so, we should keep all processes in the list for the duration of
45 * all the trace instead of dynamically adding and removing them when we
46 * scroll. Another possibility is to redraw all the visible area when a new
47 * process is added to the list. The second solution seems more appropriate
51 * The pixmap used has the width of the physical window, but the height
52 * of the shown processes.
55 typedef struct _Drawing_t Drawing_t
;
58 GtkWidget
*drawing_area
;
60 ControlFlowData
*control_flow_data
;
62 PangoLayout
*pango_layout
;
64 gint height
, width
, depth
;
68 Drawing_t
*drawing_construct(ControlFlowData
*control_flow_data
);
69 void drawing_destroy(Drawing_t
*drawing
);
71 GtkWidget
*drawing_get_widget(Drawing_t
*drawing
);
73 //void drawing_Refresh ( Drawing_t *drawing,
75 // guint width, guint height);
77 void drawing_draw_line( Drawing_t
*drawing
,
83 //void drawing_copy( Drawing_t *drawing,
84 // guint xsrc, guint ysrc,
85 // guint xdest, guint ydest,
86 // guint width, guint height);
88 /* Insert a square corresponding to a new process in the list */
89 void drawing_insert_square(Drawing_t
*drawing
,
93 /* Remove a square corresponding to a removed process in the list */
94 void drawing_remove_square(Drawing_t
*drawing
,
99 //void drawing_Resize(Drawing_t *drawing, guint h, guint w);
101 void convert_pixels_to_time(
104 LttTime
*window_time_begin
,
105 LttTime
*window_time_end
,
108 void convert_time_to_pixels(
109 LttTime window_time_begin
,
110 LttTime window_time_end
,