tags/LinuxTraceToolkitViewer-0.10.0-pre-115102007/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 #include "stock_zoom_in_24.xpm"
  33 #include "stock_zoom_out_24.xpm"
  34 #include "stock_zoom_fit_24.xpm"
  35
  36 #define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format)
  37 #define g_debug(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, format)
  38
  39 /* Preallocated Size of the index_to_pixmap array */
  40 #define ALLOCATE_PROCESSES 1000
  41
  42 /*****************************************************************************
  43  *                                       *
  44  *****************************************************************************/
  45 static GtkWidget *xpm_label_box( gchar     *xpm_filename,
  46                                  gchar     *label_text );
  47 static gboolean gplus( GtkWidget *widget,gpointer user_data)
  48 {
  49   HistoControlFlowData *histo_cfd =  (HistoControlFlowData *)user_data;
  50   //histo_cfd->vertical_ratio =histo_cfd->vertical_ratio * (1.0/2.0);
  51   if(histo_cfd->max_height>1)
  52   {
  53         histo_cfd->max_height /= 2;
  54    //just redraw.horizontal scale is not changed so Array's data are valid.
  55         histogram_show(histo_cfd ,0,histo_cfd->number_of_process->len);
  56   }
  57   else
  58         g_warning("Zoom more than 1 event is impossible");
  59
  60   histo_drawing_update_vertical_ruler(histo_cfd->drawing);//, TimeWindow *time_window);
  61   return 0;
  62 }
  63
  64 static gboolean gMinus( GtkWidget *widget,
  65                    gpointer user_data )
  66 {
  67   HistoControlFlowData *histo_cfd = (HistoControlFlowData *)user_data;
  68   histo_cfd->max_height *= 2;
  69
  70   //just redraw.horizontal scale is not changed so Array's data are valid.
  71   histogram_show(histo_cfd ,0,histo_cfd->number_of_process->len);
  72   histo_drawing_update_vertical_ruler(histo_cfd->drawing);//, TimeWindow *time_window);
  73   return 0;
  74 }
  75
  76 static gboolean gFit( GtkWidget *widget,
  77                    gpointer user_data )
  78 {
  79   /*find the maximum value and put max_height equal with this maximum*/
  80   HistoControlFlowData *histo_cfd = (HistoControlFlowData *)user_data;
  81   gint i=1,x;
  82   guint maximum;
  83   maximum =g_array_index(histo_cfd->number_of_process,guint,i);
  84   for (i=1; i < histo_cfd->number_of_process-> len ;i++)
  85   {
  86         x=g_array_index(histo_cfd->number_of_process,guint,i);
  87         maximum=MAX(x,maximum);
  88   }
  89   if (maximum >0)
  90   {
  91         histo_cfd->max_height=maximum;
  92         histogram_show (histo_cfd,0,histo_cfd->number_of_process->len);
  93   }
  94   histo_drawing_update_vertical_ruler(histo_cfd->drawing);
  95
  96   return 0;
  97 }
  98 /* Create a new hbox with an image and a label packed into it
  99  * and return the box. */
 100
 101 static GtkWidget *xpm_label_box( gchar* xpm_filename,
 102                                  gchar     *label_text )
 103 {
 104     GtkWidget *box;
 105     GtkWidget *label;
 106     GtkWidget *image;
 107
 108     GdkPixbuf *pixbufP;
 109     //GError **error;
 110     /* Create box for image and label */
 111     box = gtk_hbox_new (FALSE, 0);
 112     gtk_container_set_border_width (GTK_CONTAINER (box), 1);
 113
 114     /* Now on to the image stuff */
 115
 116     pixbufP = gdk_pixbuf_new_from_xpm_data((const char*)xpm_filename);
 117     image =  gtk_image_new_from_pixbuf(pixbufP);
 118
 119     /* Create a label for the button */
 120     label = gtk_label_new (label_text);
 121
 122     /* Pack the image and label into the box */
 123     gtk_box_pack_start (GTK_BOX (box), image, FALSE, FALSE, 1);
 124     gtk_box_pack_start (GTK_BOX (box), label, FALSE, FALSE, 1);
 125
 126     gtk_widget_show (image);
 127     gtk_widget_show (label);
 128
 129     return box;
 130 }
 131
 132 ButtonWidget *histo_buttonwidget_construct(HistoControlFlowData *histocontrol_flow_data)
 133 {
 134   GtkWidget *boxPlus, *boxMinus , *boxfit;//containing text and image for each button.
 135
 136   ButtonWidget *buttonwidget = g_new(ButtonWidget,1);
 137   buttonwidget->histo_control_flow_data = histocontrol_flow_data;
 138   /* Put + and - on the vbox and assign related functions to each button */
 139   buttonwidget-> vbox1 = gtk_vbox_new (FALSE, 0);
 140
 141 // Add 2 buttons on the vbox
 142 //  buttonwidget ->buttonP = gtk_button_new_with_mnemonic ("+");
 143 //  buttonwidget->buttonM = gtk_button_new_with_mnemonic ("-");
 144 // Instead, add 2 button with image and text:
 145
 146   buttonwidget ->buttonP =gtk_button_new ();
 147   buttonwidget ->buttonM =gtk_button_new ();
 148   buttonwidget ->buttonFit =gtk_button_new ();
 149
 150 /* This calls our box creating function */
 151   boxPlus = xpm_label_box (stock_zoom_in_24, "vertical");
 152   boxMinus = xpm_label_box (stock_zoom_out_24, "vertical");
 153   boxfit = xpm_label_box (stock_zoom_fit_24, "vertical");
 154
 155 /* Pack and show all widgets */
 156   gtk_widget_show (boxPlus);
 157   gtk_widget_show (boxMinus);
 158   gtk_widget_show (boxfit);
 159
 160   gtk_container_add (GTK_CONTAINER (buttonwidget -> buttonP), boxPlus);
 161   gtk_container_add (GTK_CONTAINER (buttonwidget -> buttonM), boxMinus);
 162   gtk_container_add (GTK_CONTAINER (buttonwidget -> buttonFit), boxfit);
 163
 164   gtk_box_pack_start (GTK_BOX (buttonwidget->vbox1),buttonwidget->buttonP, TRUE, FALSE, 0);
 165   gtk_box_pack_start (GTK_BOX (buttonwidget->vbox1),buttonwidget->buttonM, TRUE, FALSE, 0);
 166   gtk_box_pack_end (GTK_BOX (buttonwidget->vbox1),buttonwidget->buttonFit, TRUE, FALSE, 0);
 167
 168     /* When the button receives the "clicked" signal, it will call the
 169      * function gplus() passing it NULL as its argument.  The gplus()
 170      * function is defined above . */
 171
 172     g_signal_connect (G_OBJECT (buttonwidget ->buttonP), "clicked",
 173                 G_CALLBACK (gplus), (gpointer)histocontrol_flow_data);
 174     g_signal_connect (G_OBJECT ( buttonwidget->buttonM), "clicked",
 175                 G_CALLBACK (gMinus), (gpointer)histocontrol_flow_data);
 176     g_signal_connect (G_OBJECT ( buttonwidget->buttonFit), "clicked",
 177                 G_CALLBACK (gFit), (gpointer)histocontrol_flow_data);
 178
 179   gtk_widget_show (buttonwidget -> vbox1);
 180   gtk_widget_show (buttonwidget ->buttonP);
 181   gtk_widget_show (buttonwidget ->buttonM);
 182   gtk_widget_show (buttonwidget ->buttonFit);
 183
 184   return buttonwidget;
 185 }
 186
 187 void histo_buttonwidget_destroy(ButtonWidget *buttonwidget)
 188 {
 189   g_debug("buttonwidget_destroy %p", buttonwidget);
 190
 191   g_free(buttonwidget);
 192   g_debug("buttonwidget_destroy end");
 193 }
 194
 195 GtkWidget *histo_buttonwidget_get_widget(ButtonWidget *button_widget)
 196 {
 197   return button_widget->vbox1;
 198 }
 199
 200
 201
 202 void histo_rectangle_pixmap (GdkGC *gc,
 203     gboolean filled, gint x, gint y, gint width, gint height,
 204                                   histoDrawing_t *value)
 205 {
 206   if(height == -1)
 207     height = value->drawing_area->allocation.height;
 208   if(width == -1)
 209     height = value->drawing_area->allocation.width;
 210   gdk_draw_rectangle (value->pixmap,
 211       gc,
 212       filled,
 213       x, y,
 214       width, height);
 215 }
 216
 217 //This could be usefull if a vertical scroll bar is added to viewer:
 218 void histo_copy_pixmap_region(histoDrawing_t *drawing,GdkDrawable *dest,
 219     GdkGC *gc, GdkDrawable *src,
 220     gint xsrc, gint ysrc,
 221     gint xdest, gint ydest, gint width, gint height)
 222 {
 223
 224   if(dest == NULL)
 225     dest = drawing->pixmap;
 226   if(src == NULL)
 227     src = drawing->pixmap;
 228
 229   gdk_draw_drawable (dest,gc,src,xsrc, ysrc,
 230       xdest, ydest,width, height);
 231 }
 232
 233 void histo_update_pixmap_size(histoDrawing_t *value,
 234                                     guint width)
 235 {
 236   GdkPixmap *old_pixmap = value->pixmap;
 237
 238   value->pixmap =
 239         gdk_pixmap_new(old_pixmap,
 240                        width,
 241                        value->height,
 242                        -1);
 243
 244   gdk_pixmap_unref(old_pixmap);
 245 }
 246