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