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