tags/LinuxTraceToolkitViewer-0.10.0-pre-115102007/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_bdev {
  70                 COL_BDEV_UNKNOWN,
  71                 COL_BDEV_IDLE,
  72                 COL_BDEV_BUSY_READING,
  73                 COL_BDEV_BUSY_WRITING,
  74                 NUM_COLORS_BDEV
  75 } draw_color_bdev;
  76
  77 extern GdkColor drawing_colors[NUM_COLORS];
  78 extern GdkColor drawing_colors_cpu[NUM_COLORS_CPU];
  79 extern GdkColor drawing_colors_irq[NUM_COLORS_IRQ];
  80 extern GdkColor drawing_colors_bdev[NUM_COLORS_BDEV];
  81
  82 /* This part of the viewer does :
  83  * Draw horizontal lines, getting graphic context as arg.
  84  * Copy region of the screen into another.
  85  * Modify the boundaries to reflect a scale change. (resize)
  86  * Refresh the physical screen with the pixmap
  87  * A helper function is provided here to convert from time to process
  88  * identifier to pixels and the contrary (will be useful for mouse selection).
  89  * Insert an empty square in the drawing, moving the bottom part.
  90  *
  91  * Note: The last point is exactly why it would not be so easy to add the
  92  * vertical line functionnality as in the original version of LTT. In order
  93  * to do so, we should keep all processes in the list for the duration of
  94  * all the trace instead of dynamically adding and removing them when we
  95  * scroll. Another possibility is to redraw all the visible area when a new
  96  * process is added to the list. The second solution seems more appropriate
  97  * to me.
  98  *
  99  *
 100  * The pixmap used has the width of the physical window, but the height
 101  * of the shown processes.
 102  */
 103
 104 #ifndef TYPE_DRAWING_T_DEFINED
 105 #define TYPE_DRAWING_T_DEFINED
 106 typedef struct _Drawing_t Drawing_t;
 107 #endif //TYPE_DRAWING_T_DEFINED
 108
 109 #ifndef TYPE_CONTROLFLOWDATA_DEFINED
 110 #define TYPE_CONTROLFLOWDATA_DEFINED
 111 typedef struct _ControlFlowData ControlFlowData;
 112 #endif //TYPE_CONTROLFLOWDATA_DEFINED
 113
 114 struct _Drawing_t {
 115   GtkWidget *vbox;
 116   GtkWidget *drawing_area;
 117   //GtkWidget *scrolled_window;
 118   GtkWidget *hbox;
 119   GtkWidget *viewport;
 120   GtkWidget *scrollbar;
 121
 122   GtkWidget *ruler_hbox;
 123   GtkWidget *ruler;
 124   GtkWidget *padding;
 125   //GdkPixmap *pixmap;
 126   ControlFlowData *control_flow_data;
 127
 128   PangoLayout *pango_layout;
 129
 130   gint      height, width, depth;
 131   /* height and width of allocated buffer pixmap */
 132   gint      alloc_height, alloc_width;
 133
 134   /* X coordinate of damaged region */
 135   gint      damage_begin, damage_end; /* damaged region to be exposed,
 136                                          updated per chunk */
 137   LttTime   last_start;
 138   GdkGC     *dotted_gc;
 139   GdkGC     *gc;
 140   GdkGC     *ruler_gc_butt;
 141   GdkGC     *ruler_gc_round;
 142
 143   /* Position of the horizontal selector, -1 for none */
 144   gint horizontal_sel;
 145 };
 146
 147 Drawing_t *drawing_construct(ControlFlowData *control_flow_data);
 148 void drawing_destroy(Drawing_t *drawing);
 149
 150 GtkWidget *drawing_get_widget(Drawing_t *drawing);
 151 GtkWidget *drawing_get_drawing_area(Drawing_t *drawing);
 152
 153
 154 void drawing_data_request(Drawing_t *drawing,
 155       gint x, gint y,
 156       gint width,
 157       gint height);
 158
 159 void drawing_draw_line( Drawing_t *drawing,
 160       GdkPixmap *pixmap,
 161       guint x1, guint y1,
 162       guint x2, guint y2,
 163       GdkGC *GC);
 164
 165 //void drawing_copy( Drawing_t *drawing,
 166 //    guint xsrc, guint ysrc,
 167 //    guint xdest, guint ydest,
 168 //    guint width, guint height);
 169
 170 /* Clear the drawing : make it 1xwidth. */
 171 void drawing_clear(Drawing_t *drawing);
 172
 173 /* Insert a square corresponding to a new process in the list */
 174 void drawing_insert_square(Drawing_t *drawing,
 175         guint y,
 176         guint height);
 177
 178 /* Remove a square corresponding to a removed process in the list */
 179 void drawing_remove_square(Drawing_t *drawing,
 180         guint y,
 181         guint height);
 182
 183 void drawing_update_ruler(Drawing_t *drawing, TimeWindow *time_window);
 184
 185 void drawing_request_expose(EventsRequest *events_request,
 186                             LttvTracesetState *tss,
 187                             LttTime end_time);
 188
 189 void drawing_data_request_begin(EventsRequest *events_request,
 190                                 LttvTracesetState *tss);
 191 void drawing_chunk_begin(EventsRequest *events_request, LttvTracesetState *tss);
 192
 193
 194
 195 void
 196 tree_row_activated(GtkTreeModel *treemodel,
 197                    GtkTreePath *arg1,
 198                    GtkTreeViewColumn *arg2,
 199                    gpointer user_data);
 200
 201
 202 /* convert_pixels_to_time
 203  *
 204  * Convert from window pixel and time interval to an absolute time.
 205  */
 206 static inline void convert_pixels_to_time(
 207     gint width,
 208     guint x,
 209     TimeWindow time_window,
 210     LttTime *time)
 211 {
 212   double time_d;
 213
 214   time_d = time_window.time_width_double;
 215   time_d = time_d / (double)width * (double)x;
 216   *time = ltt_time_from_double(time_d);
 217   *time = ltt_time_add(time_window.start_time, *time);
 218 }
 219
 220
 221 static inline void convert_time_to_pixels(
 222     TimeWindow time_window,
 223     LttTime time,
 224     int width,
 225     guint *x)
 226 {
 227   double time_d;
 228 #ifdef EXTRA_CHECK
 229   g_assert(ltt_time_compare(window_time_begin, time) <= 0 &&
 230            ltt_time_compare(window_time_end, time) >= 0);
 231 #endif //EXTRA_CHECK
 232
 233   time = ltt_time_sub(time, time_window.start_time);
 234
 235   time_d = ltt_time_to_double(time);
 236
 237   if(time_window.time_width_double == 0.0) {
 238     g_assert(time_d == 0.0);
 239     *x = 0;
 240   } else {
 241     *x = (guint)(time_d / time_window.time_width_double * (double)width);
 242   }
 243
 244 }
 245
 246
 247
 248 #endif // _DRAWING_H