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1 | #ifndef _DRAW_ITEM_H |
2 | #define _DRAW_ITEM_H |
3 | |
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4 | #include <lttv/state.h> |
5 | |
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6 | typedef struct _DrawContext DrawContext; |
7 | typedef struct _DrawInfo DrawInfo; |
8 | typedef struct _ItemInfo ItemInfo; |
9 | |
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10 | typedef struct _IconStruct IconStruct; |
11 | |
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12 | typedef struct _DrawOperation DrawOperation; |
13 | |
14 | |
15 | typedef struct _PropertiesText PropertiesText; |
16 | typedef struct _PropertiesIcon PropertiesIcon; |
17 | typedef struct _PropertiesLine PropertiesLine; |
18 | typedef struct _PropertiesArc PropertiesArc; |
19 | typedef struct _PropertiesBG PropertiesBG; |
20 | |
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21 | typedef enum _DrawableItems DrawableItems; |
22 | enum _DrawableItems { |
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23 | ITEM_TEXT, ITEM_ICON, ITEM_LINE, ITEM_POINT, ITEM_BACKGROUND |
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24 | }; |
25 | |
26 | |
27 | typedef enum _RelPos { |
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28 | OVER, MIDDLE, UNDER |
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29 | } RelPos; |
30 | |
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31 | |
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32 | /* The DrawContext keeps information about the current drawing position and |
33 | * the previous one, so we can use both to draw lines. |
34 | * |
35 | * over : position for drawing over the middle line. |
36 | * middle : middle line position. |
37 | * under : position for drawing under the middle line. |
38 | * |
39 | * the modify_* are used to take into account that we should go forward |
40 | * when we draw a text, an arc or an icon, while it's unneeded when we |
41 | * draw a line or background. |
42 | * |
43 | */ |
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44 | |
45 | |
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46 | struct _DrawContext { |
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47 | GdkDrawable *drawable; |
48 | GdkGC *gc; |
49 | PangoLayout *pango_layout; |
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50 | |
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51 | DrawInfo *current; |
52 | DrawInfo *previous; |
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53 | }; |
54 | |
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55 | /* LttvExecutionState is accessible through the LttvTracefileState. Is has |
56 | * a pointer to the LttvProcessState which points to the top of stack |
57 | * execution state : LttvExecutionState *state. |
58 | * |
59 | * LttvExecutionState contains (useful here): |
60 | * LttvExecutionMode t, |
61 | * LttvExecutionSubmode n, |
62 | * LttvProcessStatus s |
63 | * |
64 | * |
65 | * LttvTraceState will be used in the case we need the string of the |
66 | * different processes, eventtype_names, syscall_names, trap_names, irq_names. |
67 | * |
68 | * LttvTracefileState also gives the cpu_name and, as it herits from |
69 | * LttvTracefileContext, it gives the LttEvent structure, which is needed |
70 | * to get facility name and event name. |
71 | */ |
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72 | struct _DrawInfo { |
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73 | ItemInfo *over; |
74 | ItemInfo *middle; |
75 | ItemInfo *under; |
76 | |
77 | ItemInfo *modify_over; |
78 | ItemInfo *modify_middle; |
79 | ItemInfo *modify_under; |
80 | LttvProcessStatus status; |
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81 | }; |
82 | |
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83 | struct _ItemInfo { |
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84 | gint x, y; |
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85 | }; |
86 | |
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87 | /* |
88 | * Structure used to keep information about icons. |
89 | */ |
90 | struct _IconStruct { |
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91 | GdkPixmap *pixmap; |
92 | GdkBitmap *mask; |
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93 | }; |
94 | |
95 | |
96 | /* |
97 | * The Item element is only used so the DrawOperation is modifiable by users. |
98 | * During drawing, only the Hook is needed. |
99 | */ |
100 | struct _DrawOperation { |
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101 | DrawableItems item; |
102 | LttvHooks *hook; |
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103 | }; |
104 | |
105 | /* |
106 | * We define here each items that can be drawn, together with their |
107 | * associated priority. Many item types can have the same priority, |
108 | * it's only used for quicksorting the operations when we add a new one |
109 | * to the array of operations to perform. Lower priorities are executed |
110 | * first. So, for example, we may want to give background color a value |
111 | * of 10 while a line would have 20, so the background color, which |
112 | * is in fact a rectangle, does not hide the line. |
113 | */ |
114 | |
115 | static int Items_Priorities[] = { |
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116 | 50, /* ITEM_TEXT */ |
117 | 40, /* ITEM_ICON */ |
118 | 20, /* ITEM_LINE */ |
119 | 30, /* ITEM_POINT */ |
120 | 10 /* ITEM_BACKGROUND */ |
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121 | }; |
122 | |
123 | /* |
124 | * Here are the different structures describing each item type that can be |
125 | * drawn. They contain the information necessary to draw the item : not the |
126 | * position (this is provided by the DrawContext), but the text, icon name, |
127 | * line width, color; all the properties of the specific items. |
128 | */ |
129 | |
130 | struct _PropertiesText { |
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131 | GdkColor *foreground; |
132 | GdkColor *background; |
133 | gint size; |
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134 | gchar *text; |
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135 | RelPos position; |
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136 | }; |
137 | |
138 | |
139 | struct _PropertiesIcon { |
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140 | gchar *icon_name; |
141 | gint width; |
142 | gint height; |
143 | RelPos position; |
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144 | }; |
145 | |
146 | struct _PropertiesLine { |
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147 | GdkColor *color; |
148 | gint line_width; |
149 | GdkLineStyle style; |
150 | RelPos position; |
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151 | }; |
152 | |
153 | struct _PropertiesArc { |
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154 | GdkColor *color; |
155 | gint size; /* We force circle by width = height */ |
156 | gboolean filled; |
157 | RelPos position; |
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158 | }; |
159 | |
160 | struct _PropertiesBG { |
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161 | GdkColor *color; |
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162 | }; |
163 | |
164 | |
165 | |
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166 | void draw_item( GdkDrawable *drawable, |
167 | gint x, |
168 | gint y, |
169 | LttvTraceState *ts, |
170 | LttvTracefileState *tfs, |
171 | LttvIAttribute *attributes); |
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172 | |
173 | /* |
174 | * The tree of attributes used to store drawing operations goes like this : |
175 | * |
176 | * event_types/ |
177 | * "facility-event_type" |
178 | * cpus/ |
179 | * "cpu name" |
180 | * mode_types/ |
181 | * "execution mode"/ |
182 | * submodes/ |
183 | * "submode" |
184 | * process_states/ |
185 | * "state name" |
186 | * |
187 | * So if, for example, we want to add a hook to get called each time we |
188 | * receive an event that is in state LTTV_STATE_SYSCALL, we put the |
189 | * pointer to the GArray of DrawOperation in |
190 | * process_states/ "name associated with LTTV_STATE_SYSCALL" |
191 | */ |
192 | |
193 | /* |
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194 | * The add_operation has to do a quick sort by priority to keep the operations |
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195 | * in the right order. |
196 | */ |
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197 | void add_operation( LttvIAttribute *attributes, |
198 | gchar *pathname, |
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199 | DrawOperation *operation); |
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200 | |
201 | /* |
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202 | * The del_operation seeks the array present at pathname (if any) and |
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203 | * removes the DrawOperation if present. It returns 0 on success, -1 |
204 | * if it fails. |
205 | */ |
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206 | gint del_operation( LttvIAttribute *attributes, |
207 | gchar *pathname, |
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208 | DrawOperation *operation); |
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209 | |
210 | /* |
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211 | * The clean_operations removes all operations present at a pathname. |
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212 | * returns 0 on success, -1 if it fails. |
213 | */ |
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214 | gint clean_operations( LttvIAttribute *attributes, |
215 | gchar *pathname ); |
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216 | |
217 | |
218 | /* |
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219 | * The list_operations gives a pointer to the operation array associated |
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220 | * with the pathname. It will be NULL if no operation is present. |
221 | */ |
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222 | void list_operations( LttvIAttribute *attributes, |
223 | gchar *pathname, |
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224 | GArray **operation); |
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225 | |
226 | |
227 | |
228 | /* |
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229 | * exec_operation executes the operations if present in the attributes, or |
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230 | * do nothing if not present. |
231 | */ |
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232 | void exec_operations( LttvIAttribute *attributes, |
233 | gchar *pathname); |
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234 | |
235 | |
236 | /* |
237 | * Functions to create Properties structures. |
238 | */ |
239 | |
240 | PropertiesText *properties_text_create( |
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241 | GdkColor *foreground, |
242 | GdkColor *background, |
243 | gint size, |
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244 | gchar *text, |
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245 | RelPos position); |
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246 | |
247 | PropertiesIcon *properties_icon_create( |
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248 | gchar *icon_name, |
249 | gint width, |
250 | gint height, |
251 | RelPos position); |
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252 | |
253 | PropertiesLine *properties_line_create( |
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254 | GdkColor *color, |
255 | gint line_width, |
256 | GdkLineStyle style, |
257 | RelPos position); |
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258 | |
259 | PropertiesArc *properties_arc_create( |
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260 | GdkColor *color, |
261 | gint size, |
262 | gboolean filled, |
263 | RelPos position); |
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264 | |
265 | PropertiesBG *properties_bg_create( |
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266 | GdkColor *color); |
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267 | |
268 | |
269 | |
270 | |
271 | /* |
272 | * Here follow the prototypes of the hook functions used to draw the |
273 | * different items. |
274 | */ |
275 | |
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276 | gboolean draw_text( void *hook_data, void *call_data); |
277 | gboolean draw_icon( void *hook_data, void *call_data); |
278 | gboolean draw_line( void *hook_data, void *call_data); |
279 | gboolean draw_arc( void *hook_data, void *call_data); |
280 | gboolean draw_bg( void *hook_data, void *call_data); |
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281 | |
282 | |
283 | #endif // _DRAW_ITEM_H |