lttv/modules/gui/controlflow/drawing.h

   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 _DRAWING_H
  21 #define _DRAWING_H
  22
  23 #include <glib.h>
  24 #include <gdk/gdk.h>
  25 #include <gtk/gtk.h>
  26 #include <ltt/ltt.h>
  27 #ifdef BABEL_CLEANUP
  28 #include <lttv/tracecontext.h>
  29 #endif //babel_cleanup
  30 #include <lttv/state.h>
  31 #include <lttvwindow/lttvwindow.h>
  32 #include "cfv.h"
  33 #include "drawitem.h"
  34
  35
  36 #define SAFETY 50 // safety pixels at right and bottom of pixmap buffer
  37
  38 typedef enum _draw_color {
  39                 COL_BLACK,
  40                 COL_WHITE,
  41                 COL_RUN_USER_MODE,/* green */
  42                 COL_RUN_SYSCALL,  /* pale blue */
  43                 COL_RUN_TRAP,     /* yellow */
  44                 COL_RUN_IRQ,      /* orange */
  45                 COL_RUN_SOFT_IRQ, /* red */
  46                 COL_WAIT,         /* dark red */
  47                 COL_WAIT_CPU,     /* dark yellow */
  48                 COL_ZOMBIE,       /* dark purple */
  49                 COL_WAIT_FORK,    /* dark green */
  50                 COL_EXIT,         /* "less dark" magenta */
  51                 COL_DEAD,         /* black */
  52                 COL_MODE_UNKNOWN, /* white */
  53                 COL_UNNAMED,      /* white */
  54                 NUM_COLORS } draw_color;
  55
  56 extern GdkColor drawing_colors[NUM_COLORS];
  57
  58 /* This part of the viewer does :
  59  * Draw horizontal lines, getting graphic context as arg.
  60  * Copy region of the screen into another.
  61  * Modify the boundaries to reflect a scale change. (resize)
  62  * Refresh the physical screen with the pixmap
  63  * A helper function is provided here to convert from time to process
  64  * identifier to pixels and the contrary (will be useful for mouse selection).
  65  * Insert an empty square in the drawing, moving the bottom part.
  66  *
  67  * Note: The last point is exactly why it would not be so easy to add the
  68  * vertical line functionnality as in the original version of LTT. In order
  69  * to do so, we should keep all processes in the list for the duration of
  70  * all the trace instead of dynamically adding and removing them when we
  71  * scroll. Another possibility is to redraw all the visible area when a new
  72  * process is added to the list. The second solution seems more appropriate
  73  * to me.
  74  *
  75  *
  76  * The pixmap used has the width of the physical window, but the height
  77  * of the shown processes.
  78  */
  79
  80 #ifndef TYPE_DRAWING_T_DEFINED
  81 #define TYPE_DRAWING_T_DEFINED
  82 typedef struct _Drawing_t Drawing_t;
  83 #endif //TYPE_DRAWING_T_DEFINED
  84
  85 #ifndef TYPE_CONTROLFLOWDATA_DEFINED
  86 #define TYPE_CONTROLFLOWDATA_DEFINED
  87 typedef struct _ControlFlowData ControlFlowData;
  88 #endif //TYPE_CONTROLFLOWDATA_DEFINED
  89
  90 struct _Drawing_t {
  91   GtkWidget *vbox;
  92   GtkWidget *drawing_area;
  93   //GtkWidget *scrolled_window;
  94   GtkWidget *hbox;
  95   GtkWidget *viewport;
  96   GtkWidget *scrollbar;
  97
  98   GtkWidget *ruler_hbox;
  99   GtkWidget *ruler;
 100   GtkWidget *padding;
 101   //GdkPixmap *pixmap;
 102   ControlFlowData *control_flow_data;
 103
 104   PangoLayout *pango_layout;
 105
 106   gint      height, width, depth;
 107   /* height and width of allocated buffer pixmap */
 108   gint      alloc_height, alloc_width;
 109
 110   /* X coordinate of damaged region */
 111   gint      damage_begin, damage_end; /* damaged region to be exposed,
 112                                          updated per chunk */
 113   LttTime   last_start;
 114   GdkGC     *dotted_gc;
 115   GdkGC     *gc;
 116   GdkGC     *ruler_gc_butt;
 117   GdkGC     *ruler_gc_round;
 118
 119   /* Position of the horizontal selector, -1 for none */
 120   gint horizontal_sel;
 121 };
 122
 123 Drawing_t *drawing_construct(ControlFlowData *control_flow_data);
 124 void drawing_destroy(Drawing_t *drawing);
 125
 126 GtkWidget *drawing_get_widget(Drawing_t *drawing);
 127 GtkWidget *drawing_get_drawing_area(Drawing_t *drawing);
 128
 129
 130 void drawing_data_request(Drawing_t *drawing,
 131       gint x, gint y,
 132       gint width,
 133       gint height);
 134
 135 void drawing_draw_line( Drawing_t *drawing,
 136       GdkPixmap *pixmap,
 137       guint x1, guint y1,
 138       guint x2, guint y2,
 139       GdkGC *GC);
 140
 141 //void drawing_copy( Drawing_t *drawing,
 142 //    guint xsrc, guint ysrc,
 143 //    guint xdest, guint ydest,
 144 //    guint width, guint height);
 145
 146 /* Clear the drawing : make it 1xwidth. */
 147 void drawing_clear(Drawing_t *drawing);
 148
 149 /* Insert a square corresponding to a new process in the list */
 150 void drawing_insert_square(Drawing_t *drawing,
 151         guint y,
 152         guint height);
 153
 154 /* Remove a square corresponding to a removed process in the list */
 155 void drawing_remove_square(Drawing_t *drawing,
 156         guint y,
 157         guint height);
 158
 159 void drawing_update_ruler(Drawing_t *drawing, TimeWindow *time_window);
 160
 161 void drawing_request_expose(EventsRequest *events_request,
 162                             LttTime end_time);
 163
 164 void drawing_data_request_begin(EventsRequest *events_request);
 165
 166 void drawing_chunk_begin(EventsRequest *events_request, LttvTraceset *ts);
 167
 168
 169
 170 void
 171 tree_row_activated(GtkTreeModel *treemodel,
 172                    GtkTreePath *arg1,
 173                    GtkTreeViewColumn *arg2,
 174                    gpointer user_data);
 175
 176
 177 /* convert_pixels_to_time
 178  *
 179  * Convert from window pixel and time interval to an absolute time.
 180  */
 181 static inline void convert_pixels_to_time(
 182     gint width,
 183     guint x,
 184     TimeWindow time_window,
 185     LttTime *time)
 186 {
 187   double time_d;
 188
 189   time_d = time_window.time_width_double;
 190   time_d = time_d / (double)width * (double)x;
 191   *time = ltt_time_from_double(time_d);
 192   *time = ltt_time_add(time_window.start_time, *time);
 193 }
 194
 195
 196 static inline void convert_time_to_pixels(
 197     TimeWindow time_window,
 198     LttTime time,
 199     int width,
 200     guint *x)
 201 {
 202   double time_d;
 203 #ifdef EXTRA_CHECK
 204   g_assert(ltt_time_compare(window_time_begin, time) <= 0 &&
 205            ltt_time_compare(window_time_end, time) >= 0);
 206 #endif //EXTRA_CHECK
 207
 208   time = ltt_time_sub(time, time_window.start_time);
 209
 210   time_d = ltt_time_to_double(time);
 211
 212   if(time_window.time_width_double == 0.0) {
 213     g_assert(time_d == 0.0);
 214     *x = 0;
 215   } else {
 216     *x = (guint)(time_d / time_window.time_width_double * (double)width);
 217   }
 218
 219 }
 220
 221
 222
 223 #endif // _DRAWING_H