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