gitkrrenderer.c

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#define GITK_RENDERER_C
#define GITKR_RENDERER_C

#include "gitkrincludes.h"

void gitkr_render(void) {
  gitk_log_intro();
  if(gitk_dialog_list) {
    GitkDialogPtr cur_context/*=gitk_context_get_current()*/;
    //-- let the user choose one context or just return one if there is only one
    cur_context=gitkr_set_context(); // select a context
    //-- now process that context
    if(cur_context) {
      //-- is context not yet layouted, or modified ?
      if(cur_context->changed) {
        //-- yes: layout context
        gitkr_dialog_generate_layout(cur_context);
        cur_context->changed=FALSE;
      }
      //-- display layout
      gitkr_dialog_output_layout(cur_context);
    }
    else { gitk_err("no context available!"); }
  }
  else { gitk_err("empty context list!"); }
  gitk_log_outro();
}

GitkDialogPtr gitkr_set_context(void) {
  GitkDialogPtr cur_context=NULL;
  //gitk_log_intro();
  if((cur_context=gitk_context_activate())==NULL) {
    cur_context=gitkr_select_context();
  }
  return(cur_context);
}

GitkDialogPtr gitkr_select_context(void) {
  GList* node;
  GitkDialogPtr dialog;
  gint i;
  gchar *context_name;
  static gchar *dialog_desc_pre=\
  "<?xml version=\"1.0\" ?>"\
  "<!DOCTYPE giml SYSTEM \"http://gitk.sourceforge.net/giml.dtd\">"\
  "<giml xmlns=\""GITK_NS_URL"\""\
  " xmlns:dc=\"http://purl.org/dc/elements/1.1/\""\
  " xmlns:i18n=\""I18N_NS_URL"\""\
  " >"\
  "  <dialog>"\
  "    <meta>"\
  "      <dc:title><i18n:text>context menu</i18n:text></dc:title"\
  "    </meta>"\
  "    <widgetgroup>";
  static gchar *widget_desc_fmt=\
  "      <widget id=\"Menu%03d\" type=\"action_action\">"\
  "        <label>%s</label>"\
  "      </widget>";
  static gchar *dialog_desc_post=\
  "    </widgetgroup>"\
  "  </dialog>"\
  "</giml>";
  gchar *widget_desc=NULL;
  gchar *dialog_desc=NULL;

  g_assert(gitk_dialog_list!=NULL);

  gitk_log_intro();
  node=g_list_first(gitk_dialog_list);
  //-- iterate of contexts and build a menu which the dialog module of the renderer can display
  i=0;
  dialog_desc=strdup(dialog_desc_pre);
  while(node) {
    dialog=(GitkDialogPtr)node->data;
    //gitk_log1("processing node : 0x%08lx",node);
    //gitk_log1("dialog=0x%08lx",dialog);
    context_name=gitkr_cxpath_get_string(dialog,xpath_get_dialog_name,NULL);
    //-- length is : fmtlen+namelen+numberlen - fmtcharslen
    widget_desc=g_new(gchar,strlen(widget_desc_fmt)+strlen(context_name)+3-6);
    sprintf(widget_desc,widget_desc_fmt,i,context_name);
    //-- allocate new space, copy old data and append new
    dialog_desc=strapp(dialog_desc,widget_desc);
    g_free(widget_desc);
    free(context_name);
    node=g_list_next(node);
    i++;
  }
  dialog_desc=strapp(dialog_desc,dialog_desc_post);

  //-- hide and free old context selecting context
  if(context_selection_dialog) {
    gitk_dialog_hide(context_selection_dialog);
    gitk_dialog_free(context_selection_dialog);
    context_selection_dialog=NULL;
  }
  //-- init and show the new context selecting dialog
  if((context_selection_dialog=gitk_dialog_new_from_string(dialog_desc))) {
    gitk_dialog_show(context_selection_dialog,TRUE);
    gitk_context_set_current(context_selection_dialog);
  }

  g_free(dialog_desc);

  gitk_log_outro();

  return(context_selection_dialog);
}

gchar *strapp(gchar *src1,gchar *src2) {
  gchar *ret;

  g_assert(src2!=NULL);

  if(src1==NULL) ret=strdup(src2);
  else {
    ret=g_new(gchar,strlen(src1)+strlen(src2)-1);
    strcpy(ret,src1);
    strcat(ret,src2);
    g_free(src1);
  }
  return(ret);
}

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