gitkwrapper.c

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#define GITK_LIB_C
#define GITK_WRAPPER_C

#include "gitkincludes.h"

static void gitk_event_loop_exchange(void);

gboolean gitk_dialog_show(GitkDialogPtr const dialog,gboolean const modal) {
  GitkEvent event;
  gboolean result=FALSE;

  g_assert(dialog);

  gitk_log("gitk_dialog_show()");

  dialog->changed=TRUE;
  dialog->priority=gitk_context_get_highest_used_priority();
  if(modal) dialog->priority++;
  gitk_dialog_list=g_list_append(gitk_dialog_list,dialog);

  gitk_log1("gitk_dialog_list =%p",gitk_dialog_list);
  //gitk_log1("  dialog=0x%08lx",dialog);
  //gitk_log1("  dialog->callback_list=0x%08lx",dialog->callback_list);

  gitk_renderer->gitkr_dialog_show(dialog);

  event.type=GITK_EVENT_TYPE_ON_DIALOG_SHOW;
  event.data=dialog;
  gitk_log("global_on_dialog_show");
  if(gitk_dialog_process_event(dialog,NULL,&event)) {
    gitk_log("  accepted");
    result=TRUE;
  }
  else {
    gitk_log("  rejected");
  }
  return(result);
}

void gitk_dialog_hide(GitkDialogPtr const dialog) {
  GitkEvent event;

  g_assert(dialog);

  gitk_log("gitk_dialog_hide()");

  event.type=GITK_EVENT_TYPE_ON_DIALOG_HIDE;
  event.data=dialog;
  gitk_log("global_on_dialog_hide");
  if(gitk_dialog_process_event(dialog,NULL,&event)) {
    gitk_log("  accepted");

    gitk_renderer->gitkr_dialog_hide(dialog);
  
    gitk_dialog_list=g_list_remove(gitk_dialog_list,dialog);
    /* we unconnect the callback in gitk_dialog_free()
    //-- iterate over callback list and free all callbacks
    if(dialog->callback_list) {
      GList* node=g_list_first(dialog->callback_list);
      GitkCallbackNodePtr callback_node;
    
      while(node) {
        callback_node=(GitkCallbackNodePtr)node->data;
        free(callback_node->widget_id);
        g_free(callback_node);
        node=g_list_next(node);
      }
      g_list_free(dialog->callback_list);
      dialog->callback_list=NULL;
    }
    */
  }
  else {
    gitk_log("  rejected");
  }
}

void gitk_event_loop_start(void) {
  gitk_log_intro();

  exchange_event_loop=TRUE;
  //-- start the event-loop
  while(exchange_event_loop) {
    exchange_event_loop=FALSE;;
    gitk_renderer->gitkr_event_loop_start();
    gitk_log("leaving event-loop");
    if(exchange_event_loop) gitk_event_loop_exchange();
  }

  gitk_log_outro();
}

void gitk_event_loop_end(void) {
  gitk_log_intro();
  gitk_renderer->gitkr_event_loop_end();
  gitk_log_outro();
}

static void gitk_event_loop_exchange(void) {
    guint fake_argc=1;
    gchar *fake_arg0="libgitk";
    gchar *fake_argv[1];
    gchar **fake_argvptr;
    GList* node;
    GitkDialogPtr dialog;

    fake_argv[0]=fake_arg0;
    fake_argvptr=fake_argv;

    gitk_log1("### setrenderer: new renderer will be \"%s\"###\n",gitk_renderer_name);
    
    // hide all dialogs
    node=g_list_first(gitk_dialog_list);
    while(node) {
      dialog=(GitkDialogPtr)node->data;
      gitk_renderer->gitkr_dialog_hide(dialog);
      gitk_dialog_invalidate(dialog);
      node=g_list_next(node);
    }

    gitk_log("### setrenderer : all dialogs invalidated and hidden ###\n");

    //-- switch the renderer
    gitk_renderer_done();
    gitk_renderer_activate(&fake_argc,&fake_argvptr);
    gitk_init_xsl_domain();
    gitk_init_xsl_style();

    gitk_log("### setrenderer : new renderer activated ###\n");
    
    // re-show all dialog
    node=g_list_first(gitk_dialog_list);
    while(node) {
      dialog=(GitkDialogPtr)node->data;
      gitk_renderer->gitkr_dialog_show(dialog);
      node=g_list_next(node);
    }

    gitk_log("### setrenderer : all dialog are visible again ###\n");
}

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