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293 lines
7.1 KiB
293 lines
7.1 KiB
/*
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* Copyright © 2008 Kristian Høgsberg
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* Copyright © 2009 Chris Wilson
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting documentation, and
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* that the name of the copyright holders not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. The copyright holders make no representations
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* about the suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <math.h>
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#include <time.h>
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#include <cairo.h>
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#include <glib.h>
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#include <gio/gio.h>
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#include <linux/input.h>
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#include <glib/poppler-document.h>
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#include <glib/poppler-page.h>
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#include <wayland-client.h>
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#include "window.h"
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struct view {
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struct window *window;
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struct display *display;
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PopplerDocument *document;
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int page;
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int fullscreen;
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};
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static void
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view_draw(struct view *view)
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{
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struct rectangle allocation;
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cairo_surface_t *surface;
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cairo_t *cr;
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PopplerPage *page;
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double width, height, doc_aspect, window_aspect, scale;
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if (view->fullscreen)
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window_set_transparent(view->window, 0);
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else
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window_set_transparent(view->window, 1);
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window_draw(view->window);
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widget_get_allocation(view->widget, &allocation);
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surface = window_get_surface(view->window);
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cr = cairo_create(surface);
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cairo_rectangle(cr, allocation.x, allocation.y,
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allocation.width, allocation.height);
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cairo_clip(cr);
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cairo_set_source_rgba(cr, 0, 0, 0, 0.8);
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cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
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cairo_paint(cr);
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if(!view->document) {
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cairo_destroy(cr);
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cairo_surface_destroy(surface);
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window_flush(view->window);
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return;
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}
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page = poppler_document_get_page(view->document, view->page);
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poppler_page_get_size(page, &width, &height);
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doc_aspect = width / height;
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window_aspect = (double) allocation.width / allocation.height;
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if (doc_aspect < window_aspect)
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scale = allocation.height / height;
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else
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scale = allocation.width / width;
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cairo_translate(cr, allocation.x, allocation.y);
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cairo_scale(cr, scale, scale);
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cairo_translate(cr,
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(allocation.width - width * scale) / 2 / scale,
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(allocation.height - height * scale) / 2 / scale);
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cairo_rectangle(cr, 0, 0, width, height);
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cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
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cairo_set_source_rgb(cr, 1, 1, 1);
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cairo_fill(cr);
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poppler_page_render(page, cr);
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cairo_destroy(cr);
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cairo_surface_destroy(surface);
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g_object_unref(G_OBJECT(page));
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window_flush(view->window);
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}
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static void
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redraw_handler(struct widget *widget, void *data)
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{
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struct view *view = data;
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view_draw(view);
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}
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static void
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resize_handler(struct widget *widget,
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int32_t width, int32_t height, void *data)
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{
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struct view *view = data;
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widget_set_size(view->widget, width, height);
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}
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static void
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view_page_up(struct view *view)
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{
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if(view->page <= 0)
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return;
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view->page--;
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window_schedule_redraw(view->window);
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}
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static void
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view_page_down(struct view *view)
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{
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if(!view->document ||
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view->page >= poppler_document_get_n_pages(view->document) - 1) {
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return;
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}
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view->page++;
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window_schedule_redraw(view->window);
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}
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static void
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button_handler(struct window *window, struct input *input, uint32_t time,
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int button, int state, void *data)
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{
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struct window *window = data;
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a struct view *view = window_get_user_data(window);
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if(!state)
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return;
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switch(button) {
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case 275:
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view_page_up(view);
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break;
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case 276:
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view_page_down(view);
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break;
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default:
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break;
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}
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}
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static void
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key_handler(struct window *window, struct input *input, uint32_t time,
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uint32_t key, uint32_t unicode, uint32_t state, void *data)
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{
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struct view *view = data;
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if(!state)
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return;
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switch (key) {
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case KEY_F11:
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view->fullscreen ^= 1;
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window_set_fullscreen(window, view->fullscreen);
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window_schedule_redraw(view->window);
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break;
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case KEY_SPACE:
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case KEY_PAGEDOWN:
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case KEY_RIGHT:
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case KEY_DOWN:
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view_page_down(view);
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break;
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case KEY_BACKSPACE:
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case KEY_PAGEUP:
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case KEY_LEFT:
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case KEY_UP:
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view_page_up(view);
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break;
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default:
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break;
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}
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}
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static void
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keyboard_focus_handler(struct window *window,
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struct input *device, void *data)
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{
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struct view *view = data;
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window_schedule_redraw(view->window);
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}
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static struct view *
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view_create(struct display *display,
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uint32_t key, const char *filename, int fullscreen)
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{
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struct view *view;
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gchar *basename;
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gchar *title;
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GFile *file = NULL;
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GError *error = NULL;
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view = malloc(sizeof *view);
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if (view == NULL)
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return view;
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memset(view, 0, sizeof *view);
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file = g_file_new_for_commandline_arg(filename);
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basename = g_file_get_basename(file);
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if(!basename) {
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title = "Wayland View";
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} else {
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title = g_strdup_printf("Wayland View - %s", basename);
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g_free(basename);
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}
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view->document = poppler_document_new_from_file(g_file_get_uri(file),
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NULL, &error);
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if(error) {
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title = "File not found";
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}
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view->window = window_create(display, 500, 400);
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window_set_title(view->window, title);
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view->display = display;
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window_set_user_data(view->window, view);
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window_set_key_handler(view->window, key_handler);
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window_set_keyboard_focus_handler(view->window,
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keyboard_focus_handler);
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widget_set_button_handler(view->widget, button_handler);
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widget_set_resize_handler(view->widget, resize_handler);
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widget_set_redraw_handler(view->widget, redraw_handler);
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view->page = 0;
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view->fullscreen = fullscreen;
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window_set_fullscreen(view->window, view->fullscreen);
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view_draw(view);
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return view;
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}
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static int option_fullscreen;
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static const GOptionEntry option_entries[] = {
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{ "fullscreen", 'f', 0, G_OPTION_ARG_NONE,
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&option_fullscreen, "Run in fullscreen mode" },
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{ NULL }
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};
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int
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main(int argc, char *argv[])
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{
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struct display *d;
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int i;
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d = display_create(&argc, &argv, option_entries);
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if (d == NULL) {
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fprintf(stderr, "failed to create display: %m\n");
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return -1;
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}
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for (i = 1; i < argc; i++)
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view_create (d, i, argv[i], option_fullscreen);
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display_run(d);
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return 0;
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}
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