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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 "cfv.h" |
28 | #include "drawitem.h" |
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29 | |
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30 | |
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31 | #define SAFETY 50 // safety pixels at right and bottom of pixmap buffer |
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32 | |
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33 | /* This part of the viewer does : |
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34 | * Draw horizontal lines, getting graphic context as arg. |
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35 | * Copy region of the screen into another. |
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36 | * Modify the boundaries to reflect a scale change. (resize) |
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37 | * Refresh the physical screen with the pixmap |
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38 | * A helper function is provided here to convert from time to process |
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39 | * identifier to pixels and the contrary (will be useful for mouse selection). |
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40 | * Insert an empty square in the drawing, moving the bottom part. |
41 | * |
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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 |
48 | * to me. |
49 | * |
50 | * |
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51 | * The pixmap used has the width of the physical window, but the height |
52 | * of the shown processes. |
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53 | */ |
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54 | |
55 | typedef struct _Drawing_t Drawing_t; |
56 | |
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57 | struct _Drawing_t { |
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58 | GtkWidget *vbox; |
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59 | GtkWidget *drawing_area; |
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60 | GtkWidget *ruler; |
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61 | GdkPixmap *pixmap; |
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62 | ControlFlowData *control_flow_data; |
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63 | |
64 | PangoLayout *pango_layout; |
65 | |
66 | gint height, width, depth; |
67 | |
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68 | }; |
69 | |
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70 | Drawing_t *drawing_construct(ControlFlowData *control_flow_data); |
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71 | void drawing_destroy(Drawing_t *drawing); |
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72 | |
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73 | GtkWidget *drawing_get_widget(Drawing_t *drawing); |
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74 | GtkWidget *drawing_get_drawing_area(Drawing_t *drawing); |
75 | |
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76 | //void drawing_Refresh ( Drawing_t *drawing, |
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77 | // guint x, guint y, |
78 | // guint width, guint height); |
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79 | |
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80 | void drawing_draw_line( Drawing_t *drawing, |
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81 | GdkPixmap *pixmap, |
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82 | guint x1, guint y1, |
83 | guint x2, guint y2, |
84 | GdkGC *GC); |
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85 | |
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86 | //void drawing_copy( Drawing_t *drawing, |
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87 | // guint xsrc, guint ysrc, |
88 | // guint xdest, guint ydest, |
89 | // guint width, guint height); |
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90 | |
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91 | /* Insert a square corresponding to a new process in the list */ |
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92 | void drawing_insert_square(Drawing_t *drawing, |
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93 | guint y, |
94 | guint height); |
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95 | |
96 | /* Remove a square corresponding to a removed process in the list */ |
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97 | void drawing_remove_square(Drawing_t *drawing, |
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98 | guint y, |
99 | guint height); |
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100 | |
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101 | |
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102 | //void drawing_Resize(Drawing_t *drawing, guint h, guint w); |
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103 | |
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104 | void convert_pixels_to_time( |
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105 | gint width, |
106 | guint x, |
107 | LttTime *window_time_begin, |
108 | LttTime *window_time_end, |
109 | LttTime *time); |
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110 | |
111 | void convert_time_to_pixels( |
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112 | LttTime window_time_begin, |
113 | LttTime window_time_end, |
114 | LttTime time, |
115 | gint width, |
116 | guint *x); |
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117 | |
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118 | void drawing_update_ruler(Drawing_t *drawing, TimeWindow *time_window); |
119 | |
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120 | #endif // _DRAWING_H |