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1684ba2e | 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 | |
b9ce0bad YB |
15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, |
16 | * MA 02110-1301, USA. | |
1684ba2e | 17 | */ |
18 | ||
19 | ||
20 | #ifndef _DRAW_ITEM_H | |
21 | #define _DRAW_ITEM_H | |
22 | ||
23 | #include <lttv/state.h> | |
24 | ||
25 | typedef struct _histo_DrawContext histo_DrawContext; | |
26 | typedef struct _histo_DrawInfo histo_DrawInfo; | |
27 | typedef struct _histo_ItemInfo histo_ItemInfo; | |
28 | ||
29 | typedef struct _histo_IconStruct histo_IconStruct; | |
30 | ||
31 | typedef struct _histo_DrawOperation histo_DrawOperation; | |
32 | ||
33 | ||
34 | typedef struct _histo_PropertiesText histo_PropertiesText; | |
35 | typedef struct _histo_PropertiesIcon histo_PropertiesIcon; | |
36 | typedef struct _histo_PropertiesLine histo_PropertiesLine; | |
37 | typedef struct _histo_PropertiesArc histo_PropertiesArc; | |
38 | typedef struct _histo_PropertiesBG histo_PropertiesBG; | |
39 | ||
40 | typedef enum _histo_DrawableItems histo_DrawableItems; | |
41 | enum _histo_DrawableItems { | |
42 | ITEM_TEXT, ITEM_ICON, ITEM_LINE, ITEM_POINT, ITEM_BACKGROUND | |
43 | }; | |
44 | ||
45 | typedef enum _histo_RelPosX { | |
46 | POS_START, POS_END | |
47 | } histo_RelPosX; | |
48 | ||
49 | typedef enum _histo_RelPosY { | |
50 | OVER, MIDDLE, UNDER | |
51 | } histo_RelPosY; | |
52 | ||
53 | ||
54 | /* The DrawContext keeps information about the current drawing position and | |
55 | * the previous one, so we can use both to draw lines. | |
56 | * | |
57 | * over : position for drawing over the middle line. | |
58 | * middle : middle line position. | |
59 | * under : position for drawing under the middle line. | |
60 | * | |
61 | * the modify_* are used to take into account that we should go forward | |
62 | * when we draw a text, an arc or an icon, while it's unneeded when we | |
63 | * draw a line or background. | |
64 | * | |
65 | * The modify_* positions are altered by the draw item functions. | |
66 | * | |
67 | */ | |
68 | ||
69 | ||
70 | struct _histo_DrawContext { | |
71 | GdkDrawable *drawable; | |
72 | GdkGC *gc; | |
73 | PangoLayout *pango_layout; | |
74 | ||
75 | struct { | |
76 | struct { | |
77 | gint x; | |
78 | struct { | |
79 | gint over; | |
80 | gint middle; | |
81 | gint under; | |
82 | } offset; | |
83 | } start; | |
84 | ||
85 | struct { | |
86 | gint x; | |
87 | struct { | |
88 | gint over; | |
89 | gint middle; | |
90 | gint under; | |
91 | } offset; | |
92 | } end; | |
93 | ||
94 | struct { | |
95 | gint over; | |
96 | gint middle; | |
97 | gint under; | |
98 | } y; | |
99 | ||
100 | } histo_drawinfo; | |
101 | }; | |
102 | ||
103 | ||
104 | ||
105 | ||
106 | /* | |
107 | * Structure used to keep information about icons. | |
108 | */ | |
109 | struct _histo_IconStruct { | |
110 | GdkPixmap *pixmap; | |
111 | GdkBitmap *mask; | |
112 | }; | |
113 | ||
114 | ||
115 | /* | |
116 | * The Item element is only used so the DrawOperation is modifiable by users. | |
117 | * During drawing, only the Hook is needed. | |
118 | */ | |
119 | struct _histo_DrawOperation { | |
120 | histo_DrawableItems item; | |
121 | LttvHooks *hook; | |
122 | }; | |
123 | #if 0 | |
124 | /* | |
125 | * We define here each items that can be drawn, together with their | |
126 | * associated priority. Many item types can have the same priority, | |
127 | * it's only used for quicksorting the operations when we add a new one | |
128 | * to the array of operations to perform. Lower priorities are executed | |
129 | * first. So, for example, we may want to give background color a value | |
130 | * of 10 while a line would have 20, so the background color, which | |
131 | * is in fact a rectangle, does not hide the line. | |
132 | */ | |
133 | ||
134 | static int Items_Priorities[] = { | |
135 | 50, /* ITEM_TEXT */ | |
136 | 40, /* ITEM_ICON */ | |
137 | 20, /* ITEM_LINE */ | |
138 | 30, /* ITEM_POINT */ | |
139 | 10 /* ITEM_BACKGROUND */ | |
140 | }; | |
141 | #endif //0 | |
142 | ||
143 | /* | |
144 | * Here are the different structures describing each item type that can be | |
145 | * drawn. They contain the information necessary to draw the item : not the | |
146 | * position (this is provided by the DrawContext), but the text, icon name, | |
147 | * line width, color; all the properties of the specific items. | |
148 | */ | |
149 | ||
150 | struct _histo_PropertiesText { | |
151 | GdkColor *foreground; | |
152 | GdkColor *background; | |
153 | gint size; | |
154 | gchar *text; | |
155 | struct { | |
156 | histo_RelPosX x; | |
157 | histo_RelPosY y; | |
158 | } histo_position; | |
159 | }; | |
160 | ||
161 | ||
162 | struct _histo_PropertiesIcon { | |
163 | gchar *icon_name; | |
164 | gint width; | |
165 | gint height; | |
166 | struct { | |
167 | histo_RelPosX x; | |
168 | histo_RelPosY y; | |
169 | } histo_position; | |
170 | }; | |
171 | ||
172 | struct _histo_PropertiesLine { | |
173 | GdkColor color; | |
174 | gint line_width; | |
175 | GdkLineStyle style; | |
176 | histo_RelPosY y; | |
177 | }; | |
178 | ||
179 | struct _histo_PropertiesArc { | |
180 | GdkColor *color; | |
181 | gint size; /* We force circle by width = height */ | |
182 | gboolean filled; | |
183 | struct { | |
184 | histo_RelPosX x; | |
185 | histo_RelPosY y; | |
186 | } histo_position; | |
187 | }; | |
188 | ||
189 | struct _histo_PropertiesBG { | |
190 | GdkColor *color; | |
191 | }; | |
192 | ||
193 | ||
194 | ||
195 | void histo_draw_item( GdkDrawable *drawable, | |
196 | gint x, | |
197 | gint y, | |
198 | LttvTraceState *ts, | |
199 | LttvTracefileState *tfs, | |
200 | LttvIAttribute *attributes); | |
201 | ||
202 | /* | |
203 | * The tree of attributes used to store drawing operations goes like this : | |
204 | * | |
205 | * event_types/ | |
206 | * "facility-event_type" | |
207 | * cpus/ | |
208 | * "cpu name" | |
209 | * mode_types/ | |
210 | * "execution mode"/ | |
211 | * submodes/ | |
212 | * "submode" | |
213 | * process_states/ | |
214 | * "state name" | |
215 | * | |
216 | * So if, for example, we want to add a hook to get called each time we | |
217 | * receive an event that is in state LTTV_STATE_SYSCALL, we put the | |
218 | * pointer to the GArray of DrawOperation in | |
219 | * process_states/ "name associated with LTTV_STATE_SYSCALL" | |
220 | */ | |
221 | ||
222 | ||
223 | #if 0 | |
224 | /* | |
225 | * The add_operation has to do a quick sort by priority to keep the operations | |
226 | * in the right order. | |
227 | */ | |
228 | void add_operation( LttvIAttribute *attributes, | |
229 | gchar *pathname, | |
230 | DrawOperation *operation); | |
231 | ||
232 | /* | |
233 | * The del_operation seeks the array present at pathname (if any) and | |
234 | * removes the DrawOperation if present. It returns 0 on success, -1 | |
235 | * if it fails. | |
236 | */ | |
237 | gint del_operation( LttvIAttribute *attributes, | |
238 | gchar *pathname, | |
239 | DrawOperation *operation); | |
240 | ||
241 | /* | |
242 | * The clean_operations removes all operations present at a pathname. | |
243 | * returns 0 on success, -1 if it fails. | |
244 | */ | |
245 | gint clean_operations( LttvIAttribute *attributes, | |
246 | gchar *pathname ); | |
247 | ||
248 | ||
249 | /* | |
250 | * The list_operations gives a pointer to the operation array associated | |
251 | * with the pathname. It will be NULL if no operation is present. | |
252 | */ | |
253 | void list_operations( LttvIAttribute *attributes, | |
254 | gchar *pathname, | |
255 | GArray **operation); | |
256 | ||
257 | ||
258 | ||
259 | /* | |
260 | * exec_operation executes the operations if present in the attributes, or | |
261 | * do nothing if not present. | |
262 | */ | |
263 | void exec_operations( LttvIAttribute *attributes, | |
264 | gchar *pathname); | |
265 | #endif //0 | |
266 | ||
267 | /* | |
268 | * Here follow the prototypes of the hook functions used to draw the | |
269 | * different items. | |
270 | */ | |
271 | ||
272 | gboolean histo_draw_text( void *hook_data, void *call_data); | |
273 | gboolean histo_draw_icon( void *hook_data, void *call_data); | |
274 | gboolean histo_draw_line( void *hook_data, void *call_data); | |
275 | gboolean histo_draw_arc( void *hook_data, void *call_data); | |
276 | gboolean histo_draw_bg( void *hook_data, void *call_data); | |
277 | ||
278 | ||
279 | #endif // _DRAW_ITEM_H |