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1 | /* This file is part of the Linux Trace Toolkit viewer |
2 | * Copyright (C) 2003-2004 Mathieu Desnoyers |
3 | * |
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; |
7 | * |
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. |
12 | * |
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, |
16 | * MA 02111-1307, USA. |
17 | */ |
18 | |
19 | |
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20 | #ifndef _DRAWING_H |
21 | #define _DRAWING_H |
22 | |
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23 | #include <glib.h> |
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24 | #include <gdk/gdk.h> |
25 | #include <gtk/gtk.h> |
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26 | #include <ltt/ltt.h> |
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27 | #include <lttv/tracecontext.h> |
28 | #include <lttv/state.h> |
29 | #include <lttvwindow/lttvwindow.h> |
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30 | #include "cfv.h" |
31 | #include "drawitem.h" |
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32 | |
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33 | |
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34 | #define SAFETY 50 // safety pixels at right and bottom of pixmap buffer |
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35 | |
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36 | /* This part of the viewer does : |
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37 | * Draw horizontal lines, getting graphic context as arg. |
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38 | * Copy region of the screen into another. |
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39 | * Modify the boundaries to reflect a scale change. (resize) |
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40 | * Refresh the physical screen with the pixmap |
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41 | * A helper function is provided here to convert from time to process |
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42 | * identifier to pixels and the contrary (will be useful for mouse selection). |
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43 | * Insert an empty square in the drawing, moving the bottom part. |
44 | * |
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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 |
51 | * to me. |
52 | * |
53 | * |
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54 | * The pixmap used has the width of the physical window, but the height |
55 | * of the shown processes. |
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56 | */ |
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57 | |
58 | typedef struct _Drawing_t Drawing_t; |
59 | |
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60 | struct _Drawing_t { |
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61 | GtkWidget *vbox; |
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62 | GtkWidget *drawing_area; |
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63 | //GtkWidget *scrolled_window; |
64 | GtkWidget *hbox; |
65 | GtkWidget *viewport; |
66 | GtkWidget *scrollbar; |
67 | |
68 | GtkWidget *ruler_hbox; |
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69 | GtkWidget *ruler; |
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70 | GtkWidget *padding; |
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71 | GdkPixmap *pixmap; |
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72 | ControlFlowData *control_flow_data; |
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73 | |
74 | PangoLayout *pango_layout; |
75 | |
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76 | gint height, width, depth; |
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77 | |
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78 | /* X coordinate of damaged region */ |
79 | gint damage_begin, damage_end; |
80 | LttTime last_start; |
81 | GdkGC *dotted_gc; |
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82 | GdkGC *gc; |
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83 | }; |
84 | |
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85 | Drawing_t *drawing_construct(ControlFlowData *control_flow_data); |
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86 | void drawing_destroy(Drawing_t *drawing); |
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87 | |
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88 | GtkWidget *drawing_get_widget(Drawing_t *drawing); |
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89 | GtkWidget *drawing_get_drawing_area(Drawing_t *drawing); |
90 | |
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91 | void drawing_draw_line( Drawing_t *drawing, |
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92 | GdkPixmap *pixmap, |
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93 | guint x1, guint y1, |
94 | guint x2, guint y2, |
95 | GdkGC *GC); |
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96 | |
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97 | //void drawing_copy( Drawing_t *drawing, |
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98 | // guint xsrc, guint ysrc, |
99 | // guint xdest, guint ydest, |
100 | // guint width, guint height); |
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101 | |
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102 | /* Clear the drawing : make it 1xwidth. */ |
103 | void drawing_clear(Drawing_t *drawing); |
104 | |
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105 | /* Insert a square corresponding to a new process in the list */ |
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106 | void drawing_insert_square(Drawing_t *drawing, |
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107 | guint y, |
108 | guint height); |
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109 | |
110 | /* Remove a square corresponding to a removed process in the list */ |
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111 | void drawing_remove_square(Drawing_t *drawing, |
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112 | guint y, |
113 | guint height); |
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114 | |
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115 | void convert_pixels_to_time( |
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116 | gint width, |
117 | guint x, |
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118 | LttTime window_time_begin, |
119 | LttTime window_time_end, |
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120 | LttTime *time); |
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121 | |
122 | void convert_time_to_pixels( |
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123 | LttTime window_time_begin, |
124 | LttTime window_time_end, |
125 | LttTime time, |
126 | gint width, |
127 | guint *x); |
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128 | |
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129 | void drawing_update_ruler(Drawing_t *drawing, TimeWindow *time_window); |
130 | |
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131 | void drawing_request_expose(EventsRequest *events_request, |
132 | LttvTracesetState *tss, |
133 | LttTime end_time); |
134 | |
135 | void drawing_data_request_begin(EventsRequest *events_request, |
136 | LttvTracesetState *tss); |
137 | void drawing_chunk_begin(EventsRequest *events_request, LttvTracesetState *tss); |
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138 | |
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139 | #endif // _DRAWING_H |