lttv/modules/gui/resourceview/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 <lttv/state.h>
  27 #include <lttvwindow/lttvwindow.h>
  28 #include "cfv.h"
  29 #include "drawitem.h"
  30
  31
  32 #define SAFETY 50 // safety pixels at right and bottom of pixmap buffer
  33
  34 typedef enum _draw_color {
  35                 COL_BLACK,
  36                 COL_WHITE,
  37                 COL_RUN_USER_MODE,/* green */
  38                 COL_RUN_SYSCALL,  /* pale blue */
  39                 COL_RUN_TRAP,     /* yellow */
  40                 COL_RUN_IRQ,      /* orange */
  41                 COL_RUN_SOFT_IRQ, /* red */
  42                 COL_WAIT,         /* dark red */
  43                 COL_WAIT_CPU,     /* dark yellow */
  44                 COL_ZOMBIE,       /* dark purple */
  45                 COL_WAIT_FORK,    /* dark green */
  46                 COL_EXIT,         /* "less dark" magenta */
  47                 COL_MODE_UNKNOWN, /* white */
  48                 COL_UNNAMED,      /* white */
  49                 NUM_COLORS } draw_color;
  50
  51 typedef enum _draw_color_cpu {
  52                 COL_CPU_UNKNOWN,
  53                 COL_CPU_IDLE,
  54                 COL_CPU_BUSY,
  55                 COL_CPU_IRQ,
  56                 COL_CPU_SOFT_IRQ,
  57                 COL_CPU_TRAP,
  58                 NUM_COLORS_CPU
  59 } draw_color_cpu;
  60
  61 typedef enum _draw_color_irq {
  62                 COL_IRQ_UNKNOWN,
  63                 COL_IRQ_IDLE,
  64                 COL_IRQ_BUSY,
  65                 NUM_COLORS_IRQ
  66 } draw_color_irq;
  67
  68 typedef enum _draw_color_soft_irq {
  69                 COL_SOFT_IRQ_UNKNOWN,
  70                 COL_SOFT_IRQ_IDLE,
  71                 COL_SOFT_IRQ_PENDING,
  72                 COL_SOFT_IRQ_BUSY,
  73                 NUM_COLORS_SOFT_IRQ
  74 } draw_color_soft_irq;
  75
  76 typedef enum _draw_color_trap {
  77                 COL_TRAP_UNKNOWN,
  78                 COL_TRAP_IDLE,
  79                 COL_TRAP_BUSY,
  80                 NUM_COLORS_TRAP
  81 } draw_color_trap;
  82
  83 typedef enum _draw_color_bdev {
  84                 COL_BDEV_UNKNOWN,
  85                 COL_BDEV_IDLE,
  86                 COL_BDEV_BUSY_READING,
  87                 COL_BDEV_BUSY_WRITING,
  88                 NUM_COLORS_BDEV
  89 } draw_color_bdev;
  90
  91 extern GdkColor drawing_colors[NUM_COLORS];
  92 extern GdkColor drawing_colors_cpu[NUM_COLORS_CPU];
  93 extern GdkColor drawing_colors_irq[NUM_COLORS_IRQ];
  94 extern GdkColor drawing_colors_soft_irq[NUM_COLORS_SOFT_IRQ];
  95 extern GdkColor drawing_colors_trap[NUM_COLORS_TRAP];
  96 extern GdkColor drawing_colors_bdev[NUM_COLORS_BDEV];
  97
  98 /* This part of the viewer does :
  99  * Draw horizontal lines, getting graphic context as arg.
 100  * Copy region of the screen into another.
 101  * Modify the boundaries to reflect a scale change. (resize)
 102  * Refresh the physical screen with the pixmap
 103  * A helper function is provided here to convert from time to process
 104  * identifier to pixels and the contrary (will be useful for mouse selection).
 105  * Insert an empty square in the drawing, moving the bottom part.
 106  *
 107  * Note: The last point is exactly why it would not be so easy to add the
 108  * vertical line functionnality as in the original version of LTT. In order
 109  * to do so, we should keep all processes in the list for the duration of
 110  * all the trace instead of dynamically adding and removing them when we
 111  * scroll. Another possibility is to redraw all the visible area when a new
 112  * process is added to the list. The second solution seems more appropriate
 113  * to me.
 114  *
 115  *
 116  * The pixmap used has the width of the physical window, but the height
 117  * of the shown processes.
 118  */
 119
 120 #ifndef TYPE_DRAWING_T_DEFINED
 121 #define TYPE_DRAWING_T_DEFINED
 122 typedef struct _Drawing_t Drawing_t;
 123 #endif //TYPE_DRAWING_T_DEFINED
 124
 125 #ifndef TYPE_CONTROLFLOWDATA_DEFINED
 126 #define TYPE_CONTROLFLOWDATA_DEFINED
 127 typedef struct _ControlFlowData ControlFlowData;
 128 #endif //TYPE_CONTROLFLOWDATA_DEFINED
 129
 130 struct _Drawing_t {
 131   GtkWidget *vbox;
 132   GtkWidget *drawing_area;
 133   //GtkWidget *scrolled_window;
 134   GtkWidget *hbox;
 135   GtkWidget *viewport;
 136   GtkWidget *scrollbar;
 137
 138   GtkWidget *ruler_hbox;
 139   GtkWidget *ruler;
 140   GtkWidget *padding;
 141   //GdkPixmap *pixmap;
 142   ControlFlowData *control_flow_data;
 143
 144   PangoLayout *pango_layout;
 145
 146   gint      height, width, depth;
 147   /* height and width of allocated buffer pixmap */
 148   gint      alloc_height, alloc_width;
 149
 150   /* X coordinate of damaged region */
 151   gint      damage_begin, damage_end; /* damaged region to be exposed,
 152                                          updated per chunk */
 153   LttTime   last_start;
 154   GdkGC     *dotted_gc;
 155   GdkGC     *gc;
 156   GdkGC     *ruler_gc_butt;
 157   GdkGC     *ruler_gc_round;
 158
 159   /* Position of the horizontal selector, -1 for none */
 160   gint horizontal_sel;
 161 };
 162
 163 Drawing_t *drawing_construct(ControlFlowData *control_flow_data);
 164 void drawing_destroy(Drawing_t *drawing);
 165
 166 GtkWidget *drawing_get_widget(Drawing_t *drawing);
 167 GtkWidget *drawing_get_drawing_area(Drawing_t *drawing);
 168
 169
 170 void drawing_data_request(Drawing_t *drawing,
 171       gint x, gint y,
 172       gint width,
 173       gint height);
 174
 175 void drawing_draw_line( Drawing_t *drawing,
 176       GdkPixmap *pixmap,
 177       guint x1, guint y1,
 178       guint x2, guint y2,
 179       GdkGC *GC);
 180
 181 //void drawing_copy( Drawing_t *drawing,
 182 //    guint xsrc, guint ysrc,
 183 //    guint xdest, guint ydest,
 184 //    guint width, guint height);
 185
 186 /* Clear the drawing : make it 1xwidth. */
 187 void drawing_clear(Drawing_t *drawing);
 188
 189 /* Insert a square corresponding to a new process in the list */
 190 void drawing_insert_square(Drawing_t *drawing,
 191         guint y,
 192         guint height);
 193
 194 /* Remove a square corresponding to a removed process in the list */
 195 void drawing_remove_square(Drawing_t *drawing,
 196         guint y,
 197         guint height);
 198
 199 void drawing_update_ruler(Drawing_t *drawing, TimeWindow *time_window);
 200
 201 void drawing_request_expose(EventsRequest *events_request,
 202                             LttTime end_time);
 203
 204 void drawing_data_request_begin(EventsRequest *events_request);
 205 void drawing_chunk_begin(EventsRequest *events_request, LttvTraceset *ts);
 206
 207
 208
 209 void
 210 tree_row_activated(GtkTreeModel *treemodel,
 211                    GtkTreePath *arg1,
 212                    GtkTreeViewColumn *arg2,
 213                    gpointer user_data);
 214
 215
 216 /* convert_pixels_to_time
 217  *
 218  * Convert from window pixel and time interval to an absolute time.
 219  */
 220 static inline void convert_pixels_to_time(
 221     gint width,
 222     guint x,
 223     TimeWindow time_window,
 224     LttTime *time)
 225 {
 226   double time_d;
 227
 228   time_d = time_window.time_width_double;
 229   time_d = time_d / (double)width * (double)x;
 230   *time = ltt_time_from_double(time_d);
 231   *time = ltt_time_add(time_window.start_time, *time);
 232 }
 233
 234
 235 static inline void convert_time_to_pixels(
 236     TimeWindow time_window,
 237     LttTime time,
 238     int width,
 239     guint *x)
 240 {
 241   double time_d;
 242 #ifdef EXTRA_CHECK
 243   g_assert(ltt_time_compare(window_time_begin, time) <= 0 &&
 244            ltt_time_compare(window_time_end, time) >= 0);
 245 #endif //EXTRA_CHECK
 246
 247   time = ltt_time_sub(time, time_window.start_time);
 248
 249   time_d = ltt_time_to_double(time);
 250
 251   if(time_window.time_width_double == 0.0) {
 252     g_assert(time_d == 0.0);
 253     *x = 0;
 254   } else {
 255     *x = (guint)(time_d / time_window.time_width_double * (double)width);
 256   }
 257
 258 }
 259
 260
 261
 262 #endif // _DRAWING_H