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 |
15 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
16 | * MA 02111-1307, USA. |
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 |