lttv/modules/gui/histogram/histobuttonwidget.c

   1 /* This file is part of the Linux Trace Toolkit viewer
   2  * Copyright (C) 2006 Parisa Heidari
   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 #ifdef HAVE_CONFIG_H
  20 #include <config.h>
  21 #endif
  22
  23 #include <gtk/gtk.h>
  24 #include <glib.h>
  25 #include <string.h>
  26 #include <stdlib.h>
  27 #include <math.h>
  28
  29 #include "histobuttonwidget.h"
  30 #include "histodrawing.h"
  31 #include "histodrawitem.h"
  32
  33 extern void histogram_show(HistoControlFlowData *histocontrol_flow_data,
  34                            guint draw_begin, guint draw_end);
  35
  36 #ifndef g_info
  37 #define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format)
  38 #endif
  39 #ifndef g_debug
  40 #define g_debug(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, format)
  41 #endif
  42
  43 /* Preallocated Size of the index_to_pixmap array */
  44 #define ALLOCATE_PROCESSES 1000
  45
  46 /*****************************************************************************
  47  *                                       *
  48  *****************************************************************************/
  49 static GtkWidget *xpm_label_box( gchar     *xpm_filename,
  50                                  gchar     *label_text );
  51 static gboolean gplus( GtkWidget *widget,gpointer user_data)
  52 {
  53   HistoControlFlowData *histo_cfd =  (HistoControlFlowData *)user_data;
  54   //histo_cfd->vertical_ratio =histo_cfd->vertical_ratio * (1.0/2.0);
  55   if(histo_cfd->max_height>1)
  56   {
  57         histo_cfd->max_height /= 2;
  58    //just redraw.horizontal scale is not changed so Array's data are valid.
  59         histogram_show(histo_cfd ,0,histo_cfd->number_of_process->len);
  60   }
  61   else
  62         g_warning("Zoom more than 1 event is impossible");
  63
  64   histo_drawing_update_vertical_ruler(histo_cfd->drawing);//, TimeWindow *time_window);
  65   return 0;
  66 }
  67
  68 static gboolean gMinus( GtkWidget *widget,
  69                    gpointer user_data )
  70 {
  71   HistoControlFlowData *histo_cfd = (HistoControlFlowData *)user_data;
  72   histo_cfd->max_height *= 2;
  73
  74   //just redraw.horizontal scale is not changed so Array's data are valid.
  75   histogram_show(histo_cfd ,0,histo_cfd->number_of_process->len);
  76   histo_drawing_update_vertical_ruler(histo_cfd->drawing);//, TimeWindow *time_window);
  77   return 0;
  78 }
  79
  80 static gboolean gFit( GtkWidget *widget,
  81                    gpointer user_data )
  82 {
  83   /*find the maximum value and put max_height equal with this maximum*/
  84   HistoControlFlowData *histo_cfd = (HistoControlFlowData *)user_data;
  85   gint i=1,x;
  86   guint maximum;
  87   maximum =g_array_index(histo_cfd->number_of_process,guint,i);
  88   for (i=1; i < histo_cfd->number_of_process-> len ;i++)
  89   {
  90         x=g_array_index(histo_cfd->number_of_process,guint,i);
  91         maximum=MAX(x,maximum);
  92   }
  93   if (maximum >0)
  94   {
  95         histo_cfd->max_height=maximum;
  96         histogram_show (histo_cfd,0,histo_cfd->number_of_process->len);
  97   }
  98   histo_drawing_update_vertical_ruler(histo_cfd->drawing);
  99
 100   return 0;
 101 }
 102 /* Create a new hbox with an image and a label packed into it
 103  * and return the box. */
 104
 105 static GtkWidget *xpm_label_box( gchar* xpm_filename,
 106                                  gchar     *label_text )
 107 {
 108     GtkWidget *box;
 109     GtkWidget *label;
 110     GtkWidget *image;
 111
 112     GdkPixbuf *pixbufP;
 113     //GError **error;
 114     /* Create box for image and label */
 115     box = gtk_hbox_new (FALSE, 0);
 116     gtk_container_set_border_width (GTK_CONTAINER (box), 1);
 117
 118     /* Now on to the image stuff */
 119
 120     pixbufP = gdk_pixbuf_new_from_xpm_data((const char **)&xpm_filename);
 121     image =  gtk_image_new_from_pixbuf(pixbufP);
 122
 123     /* Create a label for the button */
 124     label = gtk_label_new (label_text);
 125
 126     /* Pack the image and label into the box */
 127     gtk_box_pack_start (GTK_BOX (box), image, FALSE, FALSE, 1);
 128     gtk_box_pack_start (GTK_BOX (box), label, FALSE, FALSE, 1);
 129
 130     gtk_widget_show (image);
 131     gtk_widget_show (label);
 132
 133     return box;
 134 }
 135
 136 ButtonWidget *histo_buttonwidget_construct(HistoControlFlowData *histocontrol_flow_data)
 137 {
 138   GtkWidget *boxPlus, *boxMinus , *boxfit;//containing text and image for each button.
 139
 140   ButtonWidget *buttonwidget = g_new(ButtonWidget,1);
 141   buttonwidget->histo_control_flow_data = histocontrol_flow_data;
 142   /* Put + and - on the vbox and assign related functions to each button */
 143   buttonwidget-> vbox1 = gtk_vbox_new (FALSE, 0);
 144
 145 // Add 2 buttons on the vbox
 146 //  buttonwidget ->buttonP = gtk_button_new_with_mnemonic ("+");
 147 //  buttonwidget->buttonM = gtk_button_new_with_mnemonic ("-");
 148 // Instead, add 2 button with image and text:
 149
 150   buttonwidget ->buttonP =gtk_button_new ();
 151   buttonwidget ->buttonM =gtk_button_new ();
 152   buttonwidget ->buttonFit =gtk_button_new ();
 153
 154 /* This calls our box creating function */
 155   boxPlus = xpm_label_box ("stock_zoom_in_24.xpm", "vertical");
 156   boxMinus = xpm_label_box ("stock_zoom_out_24.xpm", "vertical");
 157   boxfit = xpm_label_box ("stock_zoom_fit_24.xpm", "vertical");
 158
 159 /* Pack and show all widgets */
 160   gtk_widget_show (boxPlus);
 161   gtk_widget_show (boxMinus);
 162   gtk_widget_show (boxfit);
 163
 164   gtk_container_add (GTK_CONTAINER (buttonwidget -> buttonP), boxPlus);
 165   gtk_container_add (GTK_CONTAINER (buttonwidget -> buttonM), boxMinus);
 166   gtk_container_add (GTK_CONTAINER (buttonwidget -> buttonFit), boxfit);
 167
 168   gtk_box_pack_start (GTK_BOX (buttonwidget->vbox1),buttonwidget->buttonP, TRUE, FALSE, 0);
 169   gtk_box_pack_start (GTK_BOX (buttonwidget->vbox1),buttonwidget->buttonM, TRUE, FALSE, 0);
 170   gtk_box_pack_end (GTK_BOX (buttonwidget->vbox1),buttonwidget->buttonFit, TRUE, FALSE, 0);
 171
 172     /* When the button receives the "clicked" signal, it will call the
 173      * function gplus() passing it NULL as its argument.  The gplus()
 174      * function is defined above . */
 175
 176     g_signal_connect (G_OBJECT (buttonwidget ->buttonP), "clicked",
 177                 G_CALLBACK (gplus), (gpointer)histocontrol_flow_data);
 178     g_signal_connect (G_OBJECT ( buttonwidget->buttonM), "clicked",
 179                 G_CALLBACK (gMinus), (gpointer)histocontrol_flow_data);
 180     g_signal_connect (G_OBJECT ( buttonwidget->buttonFit), "clicked",
 181                 G_CALLBACK (gFit), (gpointer)histocontrol_flow_data);
 182
 183   gtk_widget_show (buttonwidget -> vbox1);
 184   gtk_widget_show (buttonwidget ->buttonP);
 185   gtk_widget_show (buttonwidget ->buttonM);
 186   gtk_widget_show (buttonwidget ->buttonFit);
 187
 188   return buttonwidget;
 189 }
 190
 191 void histo_buttonwidget_destroy(ButtonWidget *buttonwidget)
 192 {
 193   g_debug("buttonwidget_destroy %p", buttonwidget);
 194
 195   g_free(buttonwidget);
 196   g_debug("buttonwidget_destroy end");
 197 }
 198
 199 GtkWidget *histo_buttonwidget_get_widget(ButtonWidget *button_widget)
 200 {
 201   return button_widget->vbox1;
 202 }
 203
 204
 205
 206 void histo_rectangle_pixmap (GdkGC *gc,
 207     gboolean filled, gint x, gint y, gint width, gint height,
 208                                   histoDrawing_t *value)
 209 {
 210   if(height == -1)
 211     height = value->drawing_area->allocation.height;
 212   if(width == -1)
 213     height = value->drawing_area->allocation.width;
 214   gdk_draw_rectangle (value->pixmap,
 215       gc,
 216       filled,
 217       x, y,
 218       width, height);
 219 }
 220
 221 //This could be usefull if a vertical scroll bar is added to viewer:
 222 void histo_copy_pixmap_region(histoDrawing_t *drawing,GdkDrawable *dest,
 223     GdkGC *gc, GdkDrawable *src,
 224     gint xsrc, gint ysrc,
 225     gint xdest, gint ydest, gint width, gint height)
 226 {
 227
 228   if(dest == NULL)
 229     dest = drawing->pixmap;
 230   if(src == NULL)
 231     src = drawing->pixmap;
 232
 233   gdk_draw_drawable (dest,gc,src,xsrc, ysrc,
 234       xdest, ydest,width, height);
 235 }
 236
 237 void histo_update_pixmap_size(histoDrawing_t *value,
 238                                     guint width)
 239 {
 240   GdkPixmap *old_pixmap = value->pixmap;
 241
 242   value->pixmap =
 243         gdk_pixmap_new(old_pixmap,
 244                        width,
 245                        value->height,
 246                        -1);
 247
 248   gdk_pixmap_unref(old_pixmap);
 249 }
 250