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