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