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 <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_MODE_UNKNOWN, /* white */
  50                 COL_UNNAMED,      /* white */
  51                 NUM_COLORS } draw_color;
  52
  53 typedef enum _draw_color_cpu {
  54                 COL_CPU_UNKNOWN,
  55                 COL_CPU_IDLE,
  56                 COL_CPU_BUSY,
  57                 COL_CPU_IRQ,
  58                 COL_CPU_SOFT_IRQ,
  59                 COL_CPU_TRAP,
  60                 NUM_COLORS_CPU
  61 } draw_color_cpu;
  62
  63 typedef enum _draw_color_irq {
  64                 COL_IRQ_UNKNOWN,
  65                 COL_IRQ_IDLE,
  66                 COL_IRQ_BUSY,
  67                 NUM_COLORS_IRQ
  68 } draw_color_irq;
  69
  70 typedef enum _draw_color_soft_irq {
  71                 COL_SOFT_IRQ_UNKNOWN,
  72                 COL_SOFT_IRQ_IDLE,
  73                 COL_SOFT_IRQ_PENDING,
  74                 COL_SOFT_IRQ_BUSY,
  75                 NUM_COLORS_SOFT_IRQ
  76 } draw_color_soft_irq;
  77
  78 typedef enum _draw_color_trap {
  79                 COL_TRAP_UNKNOWN,
  80                 COL_TRAP_IDLE,
  81                 COL_TRAP_BUSY,
  82                 NUM_COLORS_TRAP
  83 } draw_color_trap;
  84
  85 typedef enum _draw_color_bdev {
  86                 COL_BDEV_UNKNOWN,
  87                 COL_BDEV_IDLE,
  88                 COL_BDEV_BUSY_READING,
  89                 COL_BDEV_BUSY_WRITING,
  90                 NUM_COLORS_BDEV
  91 } draw_color_bdev;
  92
  93 extern GdkColor drawing_colors[NUM_COLORS];
  94 extern GdkColor drawing_colors_cpu[NUM_COLORS_CPU];
  95 extern GdkColor drawing_colors_irq[NUM_COLORS_IRQ];
  96 extern GdkColor drawing_colors_soft_irq[NUM_COLORS_SOFT_IRQ];
  97 extern GdkColor drawing_colors_trap[NUM_COLORS_TRAP];
  98 extern GdkColor drawing_colors_bdev[NUM_COLORS_BDEV];
  99
 100 /* This part of the viewer does :
 101  * Draw horizontal lines, getting graphic context as arg.
 102  * Copy region of the screen into another.
 103  * Modify the boundaries to reflect a scale change. (resize)
 104  * Refresh the physical screen with the pixmap
 105  * A helper function is provided here to convert from time to process
 106  * identifier to pixels and the contrary (will be useful for mouse selection).
 107  * Insert an empty square in the drawing, moving the bottom part.
 108  *
 109  * Note: The last point is exactly why it would not be so easy to add the
 110  * vertical line functionnality as in the original version of LTT. In order
 111  * to do so, we should keep all processes in the list for the duration of
 112  * all the trace instead of dynamically adding and removing them when we
 113  * scroll. Another possibility is to redraw all the visible area when a new
 114  * process is added to the list. The second solution seems more appropriate
 115  * to me.
 116  *
 117  *
 118  * The pixmap used has the width of the physical window, but the height
 119  * of the shown processes.
 120  */
 121
 122 #ifndef TYPE_DRAWING_T_DEFINED
 123 #define TYPE_DRAWING_T_DEFINED
 124 typedef struct _Drawing_t Drawing_t;
 125 #endif //TYPE_DRAWING_T_DEFINED
 126
 127 #ifndef TYPE_CONTROLFLOWDATA_DEFINED
 128 #define TYPE_CONTROLFLOWDATA_DEFINED
 129 typedef struct _ControlFlowData ControlFlowData;
 130 #endif //TYPE_CONTROLFLOWDATA_DEFINED
 131
 132 struct _Drawing_t {
 133   GtkWidget *vbox;
 134   GtkWidget *drawing_area;
 135   //GtkWidget *scrolled_window;
 136   GtkWidget *hbox;
 137   GtkWidget *viewport;
 138   GtkWidget *scrollbar;
 139
 140   GtkWidget *ruler_hbox;
 141   GtkWidget *ruler;
 142   GtkWidget *padding;
 143   //GdkPixmap *pixmap;
 144   ControlFlowData *control_flow_data;
 145
 146   PangoLayout *pango_layout;
 147
 148   gint      height, width, depth;
 149   /* height and width of allocated buffer pixmap */
 150   gint      alloc_height, alloc_width;
 151
 152   /* X coordinate of damaged region */
 153   gint      damage_begin, damage_end; /* damaged region to be exposed,
 154                                          updated per chunk */
 155   LttTime   last_start;
 156   GdkGC     *dotted_gc;
 157   GdkGC     *gc;
 158   GdkGC     *ruler_gc_butt;
 159   GdkGC     *ruler_gc_round;
 160
 161   /* Position of the horizontal selector, -1 for none */
 162   gint horizontal_sel;
 163 };
 164
 165 Drawing_t *drawing_construct(ControlFlowData *control_flow_data);
 166 void drawing_destroy(Drawing_t *drawing);
 167
 168 GtkWidget *drawing_get_widget(Drawing_t *drawing);
 169 GtkWidget *drawing_get_drawing_area(Drawing_t *drawing);
 170
 171
 172 void drawing_data_request(Drawing_t *drawing,
 173       gint x, gint y,
 174       gint width,
 175       gint height);
 176
 177 void drawing_draw_line( Drawing_t *drawing,
 178       GdkPixmap *pixmap,
 179       guint x1, guint y1,
 180       guint x2, guint y2,
 181       GdkGC *GC);
 182
 183 //void drawing_copy( Drawing_t *drawing,
 184 //    guint xsrc, guint ysrc,
 185 //    guint xdest, guint ydest,
 186 //    guint width, guint height);
 187
 188 /* Clear the drawing : make it 1xwidth. */
 189 void drawing_clear(Drawing_t *drawing);
 190
 191 /* Insert a square corresponding to a new process in the list */
 192 void drawing_insert_square(Drawing_t *drawing,
 193         guint y,
 194         guint height);
 195
 196 /* Remove a square corresponding to a removed process in the list */
 197 void drawing_remove_square(Drawing_t *drawing,
 198         guint y,
 199         guint height);
 200
 201 void drawing_update_ruler(Drawing_t *drawing, TimeWindow *time_window);
 202
 203 void drawing_request_expose(EventsRequest *events_request,
 204                             LttvTracesetState *tss,
 205                             LttTime end_time);
 206
 207 void drawing_data_request_begin(EventsRequest *events_request,
 208                                 LttvTracesetState *tss);
 209 void drawing_chunk_begin(EventsRequest *events_request, LttvTracesetState *tss);
 210
 211
 212
 213 void
 214 tree_row_activated(GtkTreeModel *treemodel,
 215                    GtkTreePath *arg1,
 216                    GtkTreeViewColumn *arg2,
 217                    gpointer user_data);
 218
 219
 220 /* convert_pixels_to_time
 221  *
 222  * Convert from window pixel and time interval to an absolute time.
 223  */
 224 static inline void convert_pixels_to_time(
 225     gint width,
 226     guint x,
 227     TimeWindow time_window,
 228     LttTime *time)
 229 {
 230   double time_d;
 231
 232   time_d = time_window.time_width_double;
 233   time_d = time_d / (double)width * (double)x;
 234   *time = ltt_time_from_double(time_d);
 235   *time = ltt_time_add(time_window.start_time, *time);
 236 }
 237
 238
 239 static inline void convert_time_to_pixels(
 240     TimeWindow time_window,
 241     LttTime time,
 242     int width,
 243     guint *x)
 244 {
 245   double time_d;
 246 #ifdef EXTRA_CHECK
 247   g_assert(ltt_time_compare(window_time_begin, time) <= 0 &&
 248            ltt_time_compare(window_time_end, time) >= 0);
 249 #endif //EXTRA_CHECK
 250
 251   time = ltt_time_sub(time, time_window.start_time);
 252
 253   time_d = ltt_time_to_double(time);
 254
 255   if(time_window.time_width_double == 0.0) {
 256     g_assert(time_d == 0.0);
 257     *x = 0;
 258   } else {
 259     *x = (guint)(time_d / time_window.time_width_double * (double)width);
 260   }
 261
 262 }
 263
 264
 265
 266 #endif // _DRAWING_H