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/*
Copyright (C) 2000 Paul Wilkins
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* display.c by Paul Wilkins 1/2/2000 */
#include <stdio.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include <gdk_imlib.h>
#include "globals.h"
#include "read_db.h"
#include "render_image.h"
#include "file_dialog.h"
#include "draw_image.h"
#include "find_match.h"
#include "info_popup.h"
#include "display.h"
/* some callbacks */
static gint ExposeCB(GtkWidget *widget, GdkEventExpose *event, gpointer func_data);
static gint ResizeCB(GtkWidget *widget, GdkEventConfigure *event, gpointer func_data);
static gint ButtonPressEvnt(GtkWidget *widget, GdkEventButton *event, gpointer func_data);
static gint ButtonReleaseEvnt(GtkWidget *widget, GdkEventButton *event, gpointer func_data);
static gint KeyPressEvnt(GtkWidget *widget, GdkEventKey *event, gpointer func_data);
static gint KeyReleaseEvnt(GtkWidget *widget, GdkEventKey *event, gpointer func_data);
GtkWidget *setup_display(GtkWidget *parent){
int wid, hgt;
wid = 300;
hgt = 300;
/***** create an event box *****/
globals.ebox = gtk_event_box_new();
gtk_box_pack_start(GTK_BOX(parent), globals.ebox, TRUE, TRUE, 0);
gtk_widget_show(globals.ebox);
/***** create a new scrolled window. *****/
globals.picScroll = gtk_scrolled_window_new(NULL, NULL);
gtk_widget_set_usize(globals.picScroll, wid, hgt);
gtk_container_set_border_width(GTK_CONTAINER(globals.picScroll), 0);
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(globals.picScroll),
GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
gtk_container_add(GTK_CONTAINER(globals.ebox), globals.picScroll);
/* gtk_box_pack_start(GTK_BOX(parent), globals.picScroll, TRUE, TRUE, 0); */
gtk_widget_show(globals.picScroll);
/***** create the drawing area *****/
globals.picDA = gtk_drawing_area_new();
gtk_drawing_area_size(GTK_DRAWING_AREA(globals.picDA), wid, hgt);
gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(globals.picScroll),
globals.picDA);
gtk_widget_show(globals.picDA);
/* Signals used to handle window ops */
gtk_signal_connect(GTK_OBJECT(globals.picDA), "expose_event",
(GtkSignalFunc)ExposeCB, NULL);
gtk_signal_connect(GTK_OBJECT(globals.picDA), "configure_event",
(GtkSignalFunc)ResizeCB, NULL);
/* Event signals (Input) */
gtk_signal_connect(GTK_OBJECT(globals.picDA), "button_press_event",
(GtkSignalFunc)ButtonPressEvnt, NULL);
gtk_signal_connect(GTK_OBJECT(globals.picDA), "button_release_event",
(GtkSignalFunc)ButtonReleaseEvnt, NULL);
gtk_signal_connect_after(GTK_OBJECT(globals.picDA), "key_press_event",
(GtkSignalFunc)KeyPressEvnt, NULL);
gtk_signal_connect_after(GTK_OBJECT(globals.picDA), "key_release_event",
(GtkSignalFunc)KeyReleaseEvnt, NULL);
gtk_widget_set_events(globals.picDA,
GDK_EXPOSURE_MASK | GDK_LEAVE_NOTIFY_MASK |
GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK);
GTK_WIDGET_SET_FLAGS(globals.picDA, GTK_CAN_FOCUS);
gtk_widget_grab_focus(globals.picDA);
return globals.picScroll;
}
static gint ExposeCB(GtkWidget *widget, GdkEventExpose *event, gpointer func_data){
static int picInitalized = 0;
if(picInitalized == 0){
/* save the size of the display */
globals.disp_w = gdk_screen_width();
globals.disp_h = gdk_screen_height();
picInitalized = 1;
if(globals.start_fname){
open_image(globals.start_fname);
}
}
redraw_screen(event->area.x, event->area.y, event->area.width, event->area.height);
return FALSE;
}
static gint ResizeCB(GtkWidget *widget, GdkEventConfigure *event, gpointer func_data){
int w, h;
gdk_window_get_size(GTK_WIDGET(globals.ebox)->window, &w, &h);
/* we need to tell Gtk's brain dead scrollbar when not to appear */
if(w >= globals.cur_opt.width &&
h >= globals.cur_opt.height){
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(globals.picScroll),
GTK_POLICY_NEVER, GTK_POLICY_NEVER);
} else {
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(globals.picScroll),
GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
}
/* dammit: let the user resize the window!
I think gtk_widget_set_usize() messes with this. */
/*
gdk_window_set_hints(GTK_WIDGET(globals.topwin)->window,
0, 0, 300, 300, 0, 0, GDK_HINT_MIN_SIZE);
*/
return TRUE;
}
static gint KeyPressEvnt(GtkWidget *widget, GdkEventKey *event, gpointer func_data){
printf("picKeyPressEvnt\n");
return TRUE;
}
static gint KeyReleaseEvnt(GtkWidget *widget, GdkEventKey *event, gpointer func_data){
printf("picKeyReleaseEvnt\n");
return TRUE;
}
static gint ButtonPressEvnt(GtkWidget *widget, GdkEventButton *event, gpointer func_data) {
int xx, yy;
xx = event->x / globals.cur_opt.pixW;
yy = event->y / globals.cur_opt.pixH;
if(event->x < 0 || event->x >= globals.cur_opt.width) return TRUE;
if(event->y < 0 || event->y >= globals.cur_opt.height) return TRUE;
if(globals.image != NULL){
if(event->button == 2){
info_popup(xx, yy);
info_prev();
} else if (event->button == 3) {
info_popup(xx, yy);
info_next();
} else if (event->button == 1) {
info_popup(xx, yy);
}
}
return TRUE;
}
static gint ButtonReleaseEvnt(GtkWidget *widget, GdkEventButton *event, gpointer func_data) {
return TRUE;
}
int resize_window(){
int x, y, w, h;
/* calculate the window size */
if(globals.cur_opt.width > globals.disp_w){
w = globals.disp_w;
x = 0;
} else {
w = globals.cur_opt.width;
x = 100;
}
if(globals.cur_opt.height > globals.disp_h){
h = globals.disp_h;
y = 0;
} else {
h = globals.cur_opt.height;
y = 100;
}
gtk_drawing_area_size(GTK_DRAWING_AREA(globals.picDA),
globals.cur_opt.width, globals.cur_opt.height);
/*
gdk_window_resize(GTK_WIDGET(globals.topwin)->window, w, h);
gtk_window_set_default_size(GTK_WINDOW(globals.mainwin), w, h);
*/
/* set the size of the window, and allow user resizing */
gtk_widget_set_usize(GTK_WIDGET(globals.picScroll), w, h);
gtk_window_set_policy(GTK_WINDOW(globals.topwin), TRUE, TRUE, TRUE);
return 1;
}
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