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