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ZLGtkApplicationWindow.cpp

/*
 * Copyright (C) 2004-2009 Geometer Plus <contact@geometerplus.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 */

#include <ZLibrary.h>

#include "ZLGtkApplicationWindow.h"

#include "../util/ZLGtkKeyUtil.h"
#include "../util/ZLGtkSignalUtil.h"
#include "../dialogs/ZLGtkDialogManager.h"
#include "../view/ZLGtkViewWidget.h"

void ZLGtkDialogManager::createApplicationWindow(ZLApplication *application) const {
      myWindow = (new ZLGtkApplicationWindow(application))->getMainWindow();
}

static bool applicationQuit(GtkWidget*, GdkEvent*, ZLGtkApplicationWindow *data) {
      data->application().closeView();
      return true;
}

static bool presentHandler(GtkWidget*, GdkEvent*, GtkWindow *data) {
      gtk_window_present(data);
      return false;
}

static bool handleKeyEvent(GtkWidget*, GdkEventKey *event, ZLGtkApplicationWindow *data) {
      return data->handleKeyEventSlot(event);
}

static void handleScrollEvent(GtkWidget*, GdkEventScroll *event, ZLGtkApplicationWindow *data) {
      data->handleScrollEventSlot(event);
}

ZLGtkApplicationWindow::ZLGtkApplicationWindow(ZLApplication *application) :
      ZLDesktopApplicationWindow(application),
      myViewWidget(0),
      myHyperlinkCursor(0),
      myHyperlinkCursorIsUsed(false),
      myWindowToolbar(this),
      myFullscreenToolbar(this),
      myHandleBox(0) {
      myMainWindow = GTK_WINDOW(gtk_window_new(GTK_WINDOW_TOPLEVEL));
      const std::string iconFileName = ZLibrary::ImageDirectory() + ZLibrary::FileNameDelimiter + ZLibrary::ApplicationName() + ".png";
      gtk_window_set_icon(myMainWindow, gdk_pixbuf_new_from_file(iconFileName.c_str(), 0));
      ZLGtkSignalUtil::connectSignal(GTK_OBJECT(myMainWindow), "delete_event", GTK_SIGNAL_FUNC(applicationQuit), this);

      myVBox = gtk_vbox_new(false, 0);
      gtk_container_add(GTK_CONTAINER(myMainWindow), myVBox);

      if (hasFullscreenToolbar()) {
            myHandleBox = GTK_HANDLE_BOX(gtk_handle_box_new());
            gtk_toolbar_set_show_arrow(GTK_TOOLBAR(myFullscreenToolbar.toolbarWidget()), false);
            gtk_container_add(GTK_CONTAINER(myHandleBox), myFullscreenToolbar.toolbarWidget());
            gtk_box_pack_start(GTK_BOX(myVBox), GTK_WIDGET(myHandleBox), false, false, 0);
            ZLGtkSignalUtil::connectSignal(GTK_OBJECT(myHandleBox), "event", GTK_SIGNAL_FUNC(presentHandler), myMainWindow);
      }

      gtk_box_pack_start(GTK_BOX(myVBox), myWindowToolbar.toolbarWidget(), false, false, 0);

      gtk_window_resize(myMainWindow, myWidthOption.value(), myHeightOption.value());
      gtk_window_move(myMainWindow, myXOption.value(), myYOption.value());
      gtk_widget_show_all(GTK_WIDGET(myMainWindow));

      gtk_widget_add_events(GTK_WIDGET(myMainWindow), GDK_KEY_PRESS_MASK);

      ZLGtkSignalUtil::connectSignal(GTK_OBJECT(myMainWindow), "key_press_event", G_CALLBACK(handleKeyEvent), this);
      ZLGtkSignalUtil::connectSignal(GTK_OBJECT(myMainWindow), "scroll_event", G_CALLBACK(handleScrollEvent), this);
}

void ZLGtkApplicationWindow::init() {
      ZLDesktopApplicationWindow::init();
      switch (myWindowStateOption.value()) {
            case NORMAL:
                  break;
            case FULLSCREEN:
                  setFullscreen(true);
                  break;
            case MAXIMIZED:
                  gtk_window_maximize(myMainWindow);
                  break;
      }
}

ZLGtkApplicationWindow::~ZLGtkApplicationWindow() {
      GdkWindowState state = gdk_window_get_state(GTK_WIDGET(myMainWindow)->window);
      if (state & GDK_WINDOW_STATE_FULLSCREEN) {
            myWindowStateOption.setValue(FULLSCREEN);
      } else if (state & GDK_WINDOW_STATE_MAXIMIZED) {
            myWindowStateOption.setValue(MAXIMIZED);
      } else {
            myWindowStateOption.setValue(NORMAL);
            int x, y, width, height;
            gtk_window_get_position(myMainWindow, &x, &y);
            gtk_window_get_size(myMainWindow, &width, &height);
            myXOption.setValue(x);
            myYOption.setValue(y);
            myWidthOption.setValue(width);
            myHeightOption.setValue(height);
      }
}

void ZLGtkApplicationWindow::refresh() {
      ZLApplicationWindow::refresh();
      while (gtk_events_pending()) {
            gtk_main_iteration();
      }
      ToolbarType type =
            isFullscreen() ? FULLSCREEN_TOOLBAR : WINDOW_TOOLBAR;
      gtk_widget_queue_resize(toolbar(type).toolbarWidget());
}

bool ZLGtkApplicationWindow::handleKeyEventSlot(GdkEventKey *event) {
      GtkWidget *widget = gtk_window_get_focus(myMainWindow);
      if ((widget == 0) || !GTK_WIDGET_CAN_FOCUS(widget) || GTK_IS_DRAWING_AREA(widget)) {
            application().doActionByKey(ZLGtkKeyUtil::keyName(event));
            return true;
      }
      return false;
}

void ZLGtkApplicationWindow::handleScrollEventSlot(GdkEventScroll *event) {
      switch (event->direction) {
            case GDK_SCROLL_UP:
                  application().doActionByKey(ZLApplication::MouseScrollUpKey);
                  break;
            case GDK_SCROLL_DOWN:
                  application().doActionByKey(ZLApplication::MouseScrollDownKey);
                  break;
            default:
                  break;
      }
}

void ZLGtkApplicationWindow::setToggleButtonState(const ZLToolbar::ToggleButtonItem &button) {
      toolbar(type(button)).setToggleButtonState(button);
}

void ZLGtkApplicationWindow::onGtkButtonPress(GtkToolItem *gtkButton) {
      ToolbarType type =
            isFullscreen() ? FULLSCREEN_TOOLBAR : WINDOW_TOOLBAR;
      onButtonPress(toolbar(type).buttonItemByWidget(gtkButton));
      if (isFullscreen()) {
            gtk_window_present(myMainWindow);
      }
}

void ZLGtkApplicationWindow::setFullscreen(bool fullscreen) {
      if (fullscreen == isFullscreen()) {
            return;
      }

      GdkWindowState state = gdk_window_get_state(GTK_WIDGET(myMainWindow)->window);
      if (fullscreen) {
            if ((state & GDK_WINDOW_STATE_MAXIMIZED) == 0) {
                  int x, y, width, height;
                  gtk_window_get_position(myMainWindow, &x, &y);
                  gtk_window_get_size(myMainWindow, &width, &height);
                  myXOption.setValue(x);
                  myYOption.setValue(y);
                  myWidthOption.setValue(width);
                  myHeightOption.setValue(height);
            }
            gtk_window_fullscreen(myMainWindow);
            gtk_widget_hide(myWindowToolbar.toolbarWidget());
            if (myHandleBox != 0) {
                  gtk_widget_show_all(GTK_WIDGET(myHandleBox));
            }
      } else {
            gtk_window_unfullscreen(myMainWindow);
            if (myHandleBox != 0) {
                  gtk_widget_hide(GTK_WIDGET(myHandleBox));
            }
            gtk_widget_show(myWindowToolbar.toolbarWidget());
            if ((state & GDK_WINDOW_STATE_MAXIMIZED) == 0) {
                  gtk_window_resize(myMainWindow, myWidthOption.value(), myHeightOption.value());
                  gtk_window_move(myMainWindow, myXOption.value(), myYOption.value());
            }
      }

      gtk_widget_queue_resize(GTK_WIDGET(myMainWindow));
}

bool ZLGtkApplicationWindow::isFullscreen() const {
      return
            gdk_window_get_state(GTK_WIDGET(myMainWindow)->window) &
            GDK_WINDOW_STATE_FULLSCREEN;
}

void ZLGtkApplicationWindow::addToolbarItem(ZLToolbar::ItemPtr item) {
      toolbar(type(*item)).addToolbarItem(item);
}

void ZLGtkApplicationWindow::setToolbarItemState(ZLToolbar::ItemPtr item, bool visible, bool enabled) {
      toolbar(type(*item)).setToolbarItemState(item, visible, enabled);
}

ZLViewWidget *ZLGtkApplicationWindow::createViewWidget() {
      myViewWidget = new ZLGtkViewWidget(&application(), (ZLView::Angle)application().AngleStateOption.value());
      gtk_container_add(GTK_CONTAINER(myVBox), myViewWidget->areaWithScrollbars());
      gtk_widget_show(myVBox);
      gtk_widget_show(myWindowToolbar.toolbarWidget());
      if (myHandleBox != 0) {
            gtk_widget_hide(GTK_WIDGET(myHandleBox));
      }
      return myViewWidget;
}

void ZLGtkApplicationWindow::close() {
      ZLGtkSignalUtil::removeAllSignals();
      gtk_main_quit();
}

void ZLGtkApplicationWindow::grabAllKeys(bool) {
}

void ZLGtkApplicationWindow::setHyperlinkCursor(bool hyperlink) {
      if (hyperlink == myHyperlinkCursorIsUsed) {
            return;
      }
      myHyperlinkCursorIsUsed = hyperlink;

      if (hyperlink) {
            if (myHyperlinkCursor == 0) {
                  myHyperlinkCursor = gdk_cursor_new(GDK_HAND1);
            }
            gdk_window_set_cursor(myViewWidget->area()->window, myHyperlinkCursor);
      } else {
            gdk_window_set_cursor(myViewWidget->area()->window, 0);
      }
}

void ZLGtkApplicationWindow::setFocusToMainWidget() {
      gtk_window_set_focus(myMainWindow, myViewWidget->area());
}

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