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1 | #ifndef _DRAW_ITEM_H |
2 | #define _DRAW_ITEM_H |
3 | |
4 | typedef struct _DrawContext DrawContext; |
5 | typedef struct _DrawInfo DrawInfo; |
6 | typedef struct _ItemInfo ItemInfo; |
7 | |
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8 | typedef struct _IconStruct IconStruct; |
9 | |
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10 | typedef struct _DrawOperation DrawOperation; |
11 | |
12 | |
13 | typedef struct _PropertiesText PropertiesText; |
14 | typedef struct _PropertiesIcon PropertiesIcon; |
15 | typedef struct _PropertiesLine PropertiesLine; |
16 | typedef struct _PropertiesArc PropertiesArc; |
17 | typedef struct _PropertiesBG PropertiesBG; |
18 | |
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19 | typedef enum _DrawableItems DrawableItems; |
20 | enum _DrawableItems { |
21 | ITEM_TEXT, ITEM_ICON, ITEM_LINE, ITEM_POINT, ITEM_BACKGROUND |
22 | }; |
23 | |
24 | |
25 | typedef enum _RelPos { |
26 | OVER, MIDDLE, UNDER |
27 | } RelPos; |
28 | |
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29 | |
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30 | /* The DrawContext keeps information about the current drawing position and |
31 | * the previous one, so we can use both to draw lines. |
32 | * |
33 | * over : position for drawing over the middle line. |
34 | * middle : middle line position. |
35 | * under : position for drawing under the middle line. |
36 | * |
37 | * the modify_* are used to take into account that we should go forward |
38 | * when we draw a text, an arc or an icon, while it's unneeded when we |
39 | * draw a line or background. |
40 | * |
41 | */ |
42 | struct _DrawContext { |
43 | GdkDrawable *drawable; |
44 | GdkGC *gc; |
45 | |
46 | |
47 | DrawInfo *Current; |
48 | DrawInfo *Previous; |
49 | }; |
50 | |
51 | struct _DrawInfo { |
52 | ItemInfo *over; |
53 | ItemInfo *middle; |
54 | ItemInfo *under; |
55 | |
56 | ItemInfo *modify_over; |
57 | ItemInfo *modify_middle; |
58 | ItemInfo *modify_under; |
59 | }; |
60 | |
61 | /* LttvExecutionState is accessible through the LttvTracefileState. Is has |
62 | * a pointer to the LttvProcessState which points to the top of stack |
63 | * execution state : LttvExecutionState *state. |
64 | * |
65 | * LttvExecutionState contains (useful here): |
66 | * LttvExecutionMode t, |
67 | * LttvExecutionSubmode n, |
68 | * LttvProcessStatus s |
69 | * |
70 | * |
71 | * LttvTraceState will be used in the case we need the string of the |
72 | * different processes, eventtype_names, syscall_names, trap_names, irq_names. |
73 | * |
74 | * LttvTracefileState also gives the cpu_name and, as it herits from |
75 | * LttvTracefileContext, it gives the LttEvent structure, which is needed |
76 | * to get facility name and event name. |
77 | */ |
78 | struct _ItemInfo { |
79 | gint x, y; |
80 | LttvTraceState *ts; |
81 | LttvTracefileState *tfs; |
82 | }; |
83 | |
84 | /* |
85 | * Structure used to keep information about icons. |
86 | */ |
87 | struct _IconStruct { |
88 | GdkPixmap *pixmap; |
89 | GdkBitmap *mask; |
90 | }; |
91 | |
92 | |
93 | /* |
94 | * The Item element is only used so the DrawOperation is modifiable by users. |
95 | * During drawing, only the Hook is needed. |
96 | */ |
97 | struct _DrawOperation { |
98 | DrawableItems Item; |
99 | LttvHooks *Hook; |
100 | }; |
101 | |
102 | /* |
103 | * We define here each items that can be drawn, together with their |
104 | * associated priority. Many item types can have the same priority, |
105 | * it's only used for quicksorting the operations when we add a new one |
106 | * to the array of operations to perform. Lower priorities are executed |
107 | * first. So, for example, we may want to give background color a value |
108 | * of 10 while a line would have 20, so the background color, which |
109 | * is in fact a rectangle, does not hide the line. |
110 | */ |
111 | |
112 | static int Items_Priorities[] = { |
113 | 50, /* ITEM_TEXT */ |
114 | 40, /* ITEM_ICON */ |
115 | 20, /* ITEM_LINE */ |
116 | 30, /* ITEM_POINT */ |
117 | 10 /* ITEM_BACKGROUND */ |
118 | }; |
119 | |
120 | /* |
121 | * Here are the different structures describing each item type that can be |
122 | * drawn. They contain the information necessary to draw the item : not the |
123 | * position (this is provided by the DrawContext), but the text, icon name, |
124 | * line width, color; all the properties of the specific items. |
125 | */ |
126 | |
127 | struct _PropertiesText { |
128 | GdkColor *foreground; |
129 | GdkColor *background; |
130 | gint size; |
131 | gchar *Text; |
132 | RelPos position; |
133 | }; |
134 | |
135 | |
136 | struct _PropertiesIcon { |
137 | gchar *icon_name; |
138 | gint width; |
139 | gint height; |
140 | RelPos position; |
141 | }; |
142 | |
143 | struct _PropertiesLine { |
144 | GdkColor *color; |
145 | gint line_width; |
146 | GdkLineStyle style; |
147 | RelPos position; |
148 | }; |
149 | |
150 | struct _PropertiesArc { |
151 | GdkColor *color; |
152 | gint size; /* We force circle by width = height */ |
153 | gboolean filled; |
154 | RelPos position; |
155 | }; |
156 | |
157 | struct _PropertiesBG { |
158 | GdkColor *color; |
159 | }; |
160 | |
161 | |
162 | |
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163 | void draw_item( GdkDrawable *drawable, |
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164 | gint x, |
165 | gint y, |
166 | LttvTraceState *ts, |
167 | LttvTracefileState *tfs, |
168 | LttvIAttribute *attributes); |
169 | |
170 | /* |
171 | * The tree of attributes used to store drawing operations goes like this : |
172 | * |
173 | * event_types/ |
174 | * "facility-event_type" |
175 | * cpus/ |
176 | * "cpu name" |
177 | * mode_types/ |
178 | * "execution mode"/ |
179 | * submodes/ |
180 | * "submode" |
181 | * process_states/ |
182 | * "state name" |
183 | * |
184 | * So if, for example, we want to add a hook to get called each time we |
185 | * receive an event that is in state LTTV_STATE_SYSCALL, we put the |
186 | * pointer to the GArray of DrawOperation in |
187 | * process_states/ "name associated with LTTV_STATE_SYSCALL" |
188 | */ |
189 | |
190 | /* |
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191 | * The add_operation has to do a quick sort by priority to keep the operations |
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192 | * in the right order. |
193 | */ |
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194 | void add_operation( LttvIAttribute *attributes, |
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195 | gchar *pathname, |
196 | DrawOperation *Operation); |
197 | |
198 | /* |
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199 | * The del_operation seeks the array present at pathname (if any) and |
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200 | * removes the DrawOperation if present. It returns 0 on success, -1 |
201 | * if it fails. |
202 | */ |
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203 | gint del_operation( LttvIAttribute *attributes, |
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204 | gchar *pathname, |
205 | DrawOperation *Operation); |
206 | |
207 | /* |
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208 | * The clean_operations removes all operations present at a pathname. |
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209 | * returns 0 on success, -1 if it fails. |
210 | */ |
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211 | gint clean_operations( LttvIAttribute *attributes, |
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212 | gchar *pathname ); |
213 | |
214 | |
215 | /* |
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216 | * The list_operations gives a pointer to the operation array associated |
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217 | * with the pathname. It will be NULL if no operation is present. |
218 | */ |
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219 | void list_operations( LttvIAttribute *attributes, |
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220 | gchar *pathname, |
221 | GArray **Operation); |
222 | |
223 | |
224 | |
225 | /* |
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226 | * exec_operation executes the operations if present in the attributes, or |
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227 | * do nothing if not present. |
228 | */ |
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229 | void exec_operations( LttvIAttribute *attributes, |
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230 | gchar *pathname); |
231 | |
232 | |
233 | /* |
234 | * Functions to create Properties structures. |
235 | */ |
236 | |
237 | PropertiesText *properties_text_create( |
238 | GdkColor *foreground, |
239 | GdkColor *background, |
240 | gint size, |
241 | gchar *Text, |
242 | RelPos position); |
243 | |
244 | PropertiesIcon *properties_icon_create( |
245 | gchar *icon_name, |
246 | gint width, |
247 | gint height, |
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248 | RelPos position); |
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249 | |
250 | PropertiesLine *properties_line_create( |
251 | GdkColor *color, |
252 | gint line_width, |
253 | GdkLineStyle style, |
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254 | RelPos position); |
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255 | |
256 | PropertiesArc *properties_arc_create( |
257 | GdkColor *color, |
258 | gint size, |
259 | gboolean filled, |
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260 | RelPos position); |
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261 | |
262 | PropertiesBG *properties_bg_create( |
263 | GdkColor *color); |
264 | |
265 | |
266 | |
267 | |
268 | /* |
269 | * Here follow the prototypes of the hook functions used to draw the |
270 | * different items. |
271 | */ |
272 | |
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273 | gboolean draw_text( void *hook_data, void *call_data); |
274 | gboolean draw_icon( void *hook_data, void *call_data); |
275 | gboolean draw_line( void *hook_data, void *call_data); |
276 | gboolean draw_arc( void *hook_data, void *call_data); |
277 | gboolean draw_bg( void *hook_data, void *call_data); |
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278 | |
279 | |
280 | #endif // _DRAW_ITEM_H |