| 1 | // -*- mode: C++ -*- |
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| 2 | // |
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| 3 | // PDF-Cube source file - pdfcube.cc |
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| 4 | // |
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| 5 | // Copyright (C) 2006 Mirko Maischberger <mirko.maischberger@gmail.com> |
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| 6 | // |
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| 7 | // This program is free software; you can redistribute it and/or modify |
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| 8 | // it under the terms of the GNU General Public License as published by |
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| 9 | // the Free Software Foundation; either version 2 of the License, or |
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| 10 | // (at your option) any later version. |
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| 11 | // |
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| 12 | // This program is distributed in the hope that it will be useful, |
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| 13 | // but WITHOUT ANY WAPRANTY; without even the implied warranty of |
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| 14 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 15 | // GNU General Public License for more details. |
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| 16 | // |
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| 17 | // You should have received a copy of the GNU General Public License |
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| 18 | // along with this program; if not, write to the Free Software |
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| 19 | // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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| 20 | |
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| 21 | #include <iostream> |
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| 22 | |
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| 23 | #include <cstdio> |
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| 24 | #include <cstdlib> |
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| 25 | #include <cmath> |
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| 26 | #include <cassert> |
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| 27 | |
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| 28 | // Gtk+ (pkg-config gtk+-2.0) |
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| 29 | #include <gtk/gtk.h> |
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| 30 | #include <gdk/gdkkeysyms.h> |
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| 31 | |
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| 32 | // GtkGLExt (pkg-config gtkglext-1.0) |
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| 33 | #include <gtk/gtkgl.h> |
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| 34 | |
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| 35 | // OpenGL (-lglut) |
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| 36 | #include <GL/gl.h> |
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| 37 | #include <GL/glu.h> |
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| 38 | |
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| 39 | // PDF to GdkPixbuf (pkg-config poppler-glib) |
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| 40 | #include <poppler.h> |
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| 41 | |
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| 42 | using namespace std; |
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| 43 | |
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| 44 | ////////////////////////////////////////////////////////////////////////// |
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| 45 | // Macros |
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| 46 | |
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| 47 | #define DEFAULT_WIDTH 640 |
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| 48 | #define DEFAULT_HEIGHT 480 |
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| 49 | #define DEFAULT_TITLE "PDF-Cube" |
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| 50 | |
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| 51 | #define TIMEOUT_INTERVAL 38 |
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| 52 | |
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| 53 | ////////////////////////////////////////////////////////////////////////// |
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| 54 | // Globals (will be moved inside classes some day) |
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| 55 | |
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| 56 | static gboolean fullscreen = TRUE; |
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| 57 | static gboolean animating = FALSE; |
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| 58 | |
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| 59 | enum animation { ANIM_NONE, |
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| 60 | CUBE, |
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| 61 | ZOOM0, ZOOM1, ZOOM2, ZOOM3, ZOOM4, ZOOMC, |
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| 62 | SWITCH_FW, SWITCH_BW |
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| 63 | }; |
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| 64 | |
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| 65 | animation active_animation = ANIM_NONE; |
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| 66 | animation previous_animation = ANIM_NONE; |
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| 67 | animation last_animation = ANIM_NONE; |
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| 68 | |
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| 69 | // Cube Transitions on the command line |
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| 70 | // (space advances simply or with the rotating cube) |
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| 71 | // depending on the values in this array |
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| 72 | static bool *page_transition; |
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| 73 | |
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| 74 | // TODO: customize background color on command line |
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| 75 | static float bgcolor[] = {0.4, 0.0, 0.0}; |
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| 76 | static GdkPixbuf* cube_top = NULL; |
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| 77 | |
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| 78 | ////////////////////////////////////////////////////////////////////////// |
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| 79 | // Forward declarations |
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| 80 | |
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| 81 | static void timeout_add (GtkWidget *widget); |
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| 82 | static void timeout_remove (GtkWidget *widget); |
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| 83 | |
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| 84 | static void start_animation (GtkWidget *widget, animation); |
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| 85 | static void stop_animation (GtkWidget *widget); |
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| 86 | |
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| 87 | static GdkGLConfig *configure_gl (void); |
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| 88 | |
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| 89 | static GtkWidget *create_window (GdkGLConfig *glconfig); |
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| 90 | |
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| 91 | static bool sleeping() { return !animating && active_animation == ANIM_NONE; } |
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| 92 | |
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| 93 | ////////////////////////////////////////////////////////////////////////// |
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| 94 | // |
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| 95 | // pdfcube |
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| 96 | // |
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| 97 | // This is an attemp to move some dirtyness inside a class |
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| 98 | // some work still needs to be done to transform this quick |
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| 99 | // hack in a serious pdf-viewer |
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| 100 | // |
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| 101 | class pdfcube |
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| 102 | { |
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| 103 | public: |
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| 104 | pdfcube(PopplerDocument *d) |
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| 105 | : doc(d), |
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| 106 | current_page(0), |
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| 107 | current_face(0), |
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| 108 | total_pages(poppler_document_get_n_pages(d)), |
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| 109 | frame(0), |
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| 110 | lookposx(0.0), lookposy(0.0), lookposz(3.48), |
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| 111 | atx(0.0), aty(0.0), atz(0.0), |
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| 112 | persp(44.0), angle(0.0), |
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| 113 | pixmap(0) |
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| 114 | { |
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| 115 | texmap[0] = 0; texmap[1] = 1; texmap[2] = 2; |
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| 116 | pixmap = |
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| 117 | gdk_pixbuf_new(GDK_COLORSPACE_RGB, true, 8, tex_width, tex_height); |
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| 118 | } |
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| 119 | |
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| 120 | int page() { return current_page; } |
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| 121 | |
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| 122 | int pages() { return total_pages; } |
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| 123 | |
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| 124 | void restart(GtkWidget* widget) |
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| 125 | { current_page = 0; update_textures(widget); } |
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| 126 | |
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| 127 | void go_to(GtkWidget* widget, int page) |
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| 128 | { |
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| 129 | if(page>=0 && page < total_pages) |
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| 130 | { |
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| 131 | current_page = page; |
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| 132 | update_textures(widget); |
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| 133 | } |
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| 134 | } |
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| 135 | |
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| 136 | void section(GtkWidget* widget, int section) |
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| 137 | { |
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| 138 | cerr << "Section: " << section << " total pages: " << total_pages << endl; |
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| 139 | int ii; |
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| 140 | for(ii = 0; ii < total_pages; ++ii) |
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| 141 | { |
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| 142 | if(page_transition[ii]) section--; |
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| 143 | if(section == 0) break; |
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| 144 | } |
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| 145 | cerr << "Page: " << ii << endl; |
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| 146 | if(ii < total_pages) |
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| 147 | { |
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| 148 | current_page = ii; |
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| 149 | update_textures(widget); |
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| 150 | } |
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| 151 | } |
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| 152 | |
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| 153 | void |
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| 154 | initialize(GtkWidget *widget) |
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| 155 | { |
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| 156 | glClearColor (bgcolor[0], bgcolor[1], bgcolor[2], 0.0); |
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| 157 | |
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| 158 | // glEnable(GL_NORMALIZE); |
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| 159 | glShadeModel(GL_FLAT); |
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| 160 | glEnable(GL_TEXTURE_RECTANGLE_ARB); |
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| 161 | |
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| 162 | // glEnable(GL_DEPTH_TEST); |
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| 163 | // or |
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| 164 | glEnable(GL_CULL_FACE); |
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| 165 | glCullFace(GL_FRONT); |
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| 166 | |
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| 167 | glPixelStorei(GL_UNPACK_ALIGNMENT, 1); |
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| 168 | |
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| 169 | glGenTextures (3, textures); |
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| 170 | |
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| 171 | glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL); |
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| 172 | glTexParameteri( GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_S, |
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| 173 | GL_CLAMP_TO_EDGE ); |
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| 174 | glTexParameteri( GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T, |
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| 175 | GL_CLAMP_TO_EDGE ); |
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| 176 | |
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| 177 | glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, |
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| 178 | GL_LINEAR_MIPMAP_LINEAR); |
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| 179 | glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, |
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| 180 | GL_LINEAR); |
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| 181 | |
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| 182 | update_textures(widget); |
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| 183 | |
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| 184 | GLint size; |
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| 185 | glGetIntegerv(GL_MAX_TEXTURE_SIZE, &size); |
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| 186 | printf("%u\n", size); |
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| 187 | assert(size >= 512); |
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| 188 | assert(glIsTexture(textures[0])); |
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| 189 | |
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| 190 | // Cube vertex |
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| 191 | v[0][0] = v[1][0] = v[2][0] = v[3][0] = -1; |
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| 192 | v[4][0] = v[5][0] = v[6][0] = v[7][0] = 1; |
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| 193 | v[0][1] = v[1][1] = v[4][1] = v[5][1] = -1; |
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| 194 | v[2][1] = v[3][1] = v[6][1] = v[7][1] = 1; |
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| 195 | v[0][2] = v[3][2] = v[4][2] = v[7][2] = 1; |
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| 196 | v[1][2] = v[2][2] = v[5][2] = v[6][2] = -1; |
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| 197 | |
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| 198 | |
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| 199 | glMatrixMode(GL_PROJECTION); |
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| 200 | gluPerspective( persp, |
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| 201 | 1.0, |
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| 202 | 0.5, |
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| 203 | 10.0); |
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| 204 | |
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| 205 | glMatrixMode(GL_MODELVIEW); |
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| 206 | |
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| 207 | gluLookAt(lookposx, lookposy, lookposz, |
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| 208 | atx, aty, atz, |
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| 209 | 0.0, 1.0, 0.0); // up is in positive Y direction |
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| 210 | |
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| 211 | } |
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| 212 | |
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| 213 | |
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| 214 | |
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| 215 | void |
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| 216 | redraw(GtkWidget *widget) |
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| 217 | { |
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| 218 | int frames = 17; |
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| 219 | double yoffset = 0.1; |
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| 220 | if(animating) |
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| 221 | { |
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| 222 | switch(active_animation) |
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| 223 | { |
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| 224 | case ANIM_NONE: |
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| 225 | cerr << "No animation... stopping right now." << endl; |
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| 226 | frame = 0; |
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| 227 | stop_animation(widget); |
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| 228 | break; |
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| 229 | case CUBE: |
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| 230 | cerr << "cube " << frame << endl; |
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| 231 | if(frame == 17) |
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| 232 | { |
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| 233 | frame = 0; |
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| 234 | stop_animation(widget); |
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| 235 | } |
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| 236 | else |
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| 237 | { |
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| 238 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
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| 239 | glMatrixMode(GL_MODELVIEW); |
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| 240 | glLoadIdentity(); |
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| 241 | lookposz -= zsteps[frame]*4; |
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| 242 | lookposy = 6*xsteps[frame]; |
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| 243 | gluLookAt(lookposx, lookposy, lookposz, atx,aty,atz, 0,1,0); |
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| 244 | angle -= steps[frame]; |
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| 245 | glRotatef(angle, 0.0, 1.0, 0.0); |
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| 246 | drawCube(); |
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| 247 | frame++; |
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| 248 | } |
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| 249 | break; |
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| 250 | case ZOOM0: |
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| 251 | cerr << "zoom0 " << frame << endl; |
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| 252 | if(frame == 17) |
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| 253 | { |
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| 254 | frame = 0; |
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| 255 | stop_animation(widget); |
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| 256 | } |
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| 257 | else |
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| 258 | { |
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| 259 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
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| 260 | switch(previous_animation) |
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| 261 | { |
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| 262 | case ZOOM1: |
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| 263 | persp = perspsteps[16-frame]; |
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| 264 | atx = lookposx = -(1.3*zoomsteps[16-frame]); |
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| 265 | aty = lookposy = zoomsteps[16-frame] - |
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| 266 | yoffset/frames * (16-frame); |
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| 267 | break; |
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| 268 | case ZOOM2: |
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| 269 | persp = perspsteps[16-frame]; |
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| 270 | atx = lookposx = 1.3*zoomsteps[16-frame]; |
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| 271 | aty = lookposy = zoomsteps[16-frame] - |
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| 272 | yoffset/frames * (16-frame); |
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| 273 | break; |
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| 274 | case ZOOM3: |
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| 275 | persp = perspsteps[16-frame]; |
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| 276 | atx = lookposx = -1.3*zoomsteps[16-frame]; |
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| 277 | aty = lookposy = -zoomsteps[16-frame] - |
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| 278 | yoffset/frames * (16-frame); |
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| 279 | break; |
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| 280 | case ZOOM4: |
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| 281 | persp = perspsteps[16-frame]; |
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| 282 | atx = lookposx = 1.3*zoomsteps[16-frame]; |
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| 283 | aty = lookposy = -zoomsteps[16-frame] - |
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| 284 | yoffset/frames * (16-frame); |
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| 285 | break; |
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| 286 | case ZOOMC: |
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| 287 | persp = perspstepsc[16-frame]; |
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| 288 | aty = lookposy = - zoomsteps[16-frame]*0.38; |
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| 289 | break; |
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| 290 | default: |
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| 291 | cerr << "Should not reach" << endl; |
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| 292 | break; |
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| 293 | } |
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| 294 | glMatrixMode(GL_PROJECTION); |
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| 295 | glLoadIdentity(); |
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| 296 | gluPerspective( persp, |
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| 297 | 1.0, |
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| 298 | 0.5, |
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| 299 | 10.0); |
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| 300 | glMatrixMode(GL_MODELVIEW); |
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| 301 | glLoadIdentity(); |
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| 302 | gluLookAt(lookposx, lookposy, lookposz, atx, aty, atz, 0,1,0); |
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| 303 | glRotatef(angle, 0.0, 1.0, 0.0); |
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| 304 | drawCube(); |
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| 305 | frame++; |
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| 306 | } |
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| 307 | break; |
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| 308 | case ZOOM1: |
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| 309 | cerr << "zoom1 " << frame << endl; |
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| 310 | if(frame == 17) |
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| 311 | { |
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| 312 | frame = 0; |
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| 313 | stop_animation(widget); |
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| 314 | } |
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| 315 | else |
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| 316 | { |
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| 317 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
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| 318 | glMatrixMode(GL_PROJECTION); |
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| 319 | glLoadIdentity(); |
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| 320 | persp = perspsteps[frame]; |
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| 321 | gluPerspective(persp, |
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| 322 | 1.0, |
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| 323 | 0.5, |
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| 324 | 10.0); |
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| 325 | glMatrixMode(GL_MODELVIEW); |
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| 326 | glLoadIdentity(); |
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| 327 | atx = lookposx = -1.3*zoomsteps[frame]; |
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| 328 | aty = lookposy = zoomsteps[frame] - yoffset/frames * (frame); |
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| 329 | gluLookAt(lookposx, lookposy, lookposz, atx, aty, atz, 0,1,0); |
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| 330 | glRotatef(angle, 0.0, 1.0, 0.0); |
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| 331 | drawCube(); |
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| 332 | frame++; |
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| 333 | } |
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| 334 | break; |
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| 335 | case ZOOM2: |
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| 336 | cerr << "zoom1 " << frame << endl; |
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| 337 | if(frame == 17) |
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| 338 | { |
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| 339 | frame = 0; |
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| 340 | stop_animation(widget); |
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| 341 | } |
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| 342 | else |
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| 343 | { |
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| 344 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
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| 345 | glMatrixMode(GL_PROJECTION); |
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| 346 | glLoadIdentity(); |
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| 347 | persp = perspsteps[frame]; |
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| 348 | gluPerspective(persp, |
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| 349 | 1.0, |
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| 350 | 0.5, |
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| 351 | 10.0); |
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| 352 | glMatrixMode(GL_MODELVIEW); |
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| 353 | glLoadIdentity(); |
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| 354 | atx = lookposx = 1.3*zoomsteps[frame]; |
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| 355 | aty = lookposy = zoomsteps[frame] - yoffset/frames * (frame); |
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| 356 | gluLookAt(lookposx, lookposy, lookposz, atx, aty, atz, 0,1,0); |
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| 357 | glRotatef(angle, 0.0, 1.0, 0.0); |
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| 358 | drawCube(); |
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| 359 | frame++; |
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| 360 | } |
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| 361 | break; |
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| 362 | case ZOOM3: |
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| 363 | cerr << "zoom1 " << frame << endl; |
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| 364 | if(frame == 17) |
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| 365 | { |
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| 366 | frame = 0; |
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| 367 | stop_animation(widget); |
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| 368 | } |
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| 369 | else |
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| 370 | { |
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| 371 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
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| 372 | glMatrixMode(GL_PROJECTION); |
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| 373 | glLoadIdentity(); |
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| 374 | persp = perspsteps[frame]; |
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| 375 | gluPerspective(persp, |
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| 376 | 1.0, |
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| 377 | 0.5, |
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| 378 | 10.0); |
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| 379 | glMatrixMode(GL_MODELVIEW); |
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| 380 | glLoadIdentity(); |
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| 381 | atx = lookposx = -1.3*zoomsteps[frame]; |
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| 382 | aty = lookposy = -zoomsteps[frame] - yoffset/frames * (frame); |
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| 383 | gluLookAt(lookposx, lookposy, lookposz, atx, aty, atz, 0,1,0); |
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| 384 | glRotatef(angle, 0.0, 1.0, 0.0); |
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| 385 | drawCube(); |
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| 386 | frame++; |
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| 387 | } |
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| 388 | break; |
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| 389 | case ZOOM4: |
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| 390 | cerr << "zoom1 " << frame << endl; |
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| 391 | if(frame == 17) |
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| 392 | { |
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| 393 | frame = 0; |
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| 394 | stop_animation(widget); |
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| 395 | } |
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| 396 | else |
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| 397 | { |
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| 398 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
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| 399 | glMatrixMode(GL_PROJECTION); |
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| 400 | glLoadIdentity(); |
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| 401 | persp = perspsteps[frame]; |
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| 402 | gluPerspective(persp, |
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| 403 | 1.0, |
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| 404 | 0.5, |
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| 405 | 10.0); |
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| 406 | glMatrixMode(GL_MODELVIEW); |
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| 407 | glLoadIdentity(); |
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| 408 | atx = lookposx = 1.3*zoomsteps[frame]; |
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| 409 | aty = lookposy = -zoomsteps[frame] -yoffset/frames * (frame); |
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| 410 | gluLookAt(lookposx, lookposy, lookposz, atx, aty, atz, 0,1,0); |
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| 411 | glRotatef(angle, 0.0, 1.0, 0.0); |
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| 412 | drawCube(); |
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| 413 | frame++; |
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| 414 | } |
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| 415 | break; |
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| 416 | case ZOOMC: |
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| 417 | cerr << "zoomc " << frame << endl; |
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| 418 | if(frame == 17) |
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| 419 | { |
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| 420 | frame = 0; |
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| 421 | stop_animation(widget); |
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| 422 | } |
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| 423 | else |
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| 424 | { |
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| 425 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
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| 426 | persp = perspstepsc[frame]; |
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| 427 | aty = lookposy = - zoomsteps[frame]*0.38; |
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| 428 | glMatrixMode(GL_PROJECTION); |
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| 429 | glLoadIdentity(); |
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| 430 | gluPerspective(persp, |
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| 431 | 1.0, |
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| 432 | 0.5, |
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| 433 | 10.0); |
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| 434 | glMatrixMode(GL_MODELVIEW); |
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| 435 | glLoadIdentity(); |
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| 436 | gluLookAt(lookposx, lookposy, lookposz, atx, aty, atz, 0,1,0); |
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| 437 | glRotatef(angle, 0.0, 1.0, 0.0); |
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| 438 | drawCube(); |
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| 439 | frame++; |
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| 440 | } |
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| 441 | break; |
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| 442 | case SWITCH_FW: |
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| 443 | cerr << "fw " << frame << endl; |
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| 444 | if(frame == 1) |
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| 445 | { |
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| 446 | frame = 0; |
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| 447 | stop_animation(widget); |
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| 448 | } |
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| 449 | else |
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| 450 | { |
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| 451 | glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
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| 452 | glMatrixMode(GL_MODELVIEW); |
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| 453 | glLoadIdentity(); |
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| 454 | gluLookAt(lookposx, lookposy, lookposz, atx, aty, atz, 0,1,0); |
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| 455 | angle -= 90; |
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| 456 | glRotatef(angle, 0.0, 1.0, 0.0); |
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| 457 | drawCube(); |
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| 458 | frame++; |
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| 459 | } |
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| 460 | break; |
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| 461 | case SWITCH_BW: |
|---|
| 462 | cerr << "bw " << frame << endl; |
|---|
| 463 | if(frame == 1) |
|---|
| 464 | { |
|---|
| 465 | frame = 0; |
|---|
| 466 | stop_animation(widget); |
|---|
| 467 | } |
|---|
| 468 | else |
|---|
| 469 | { |
|---|
| 470 | glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
|---|
| 471 | glMatrixMode(GL_MODELVIEW); |
|---|
| 472 | glLoadIdentity(); |
|---|
| 473 | gluLookAt(lookposx, lookposy, lookposz, atx, aty, atz, 0,1,0); |
|---|
| 474 | angle += 90; |
|---|
| 475 | glRotatef(angle, 0.0, 1.0, 0.0); |
|---|
| 476 | drawCube(); |
|---|
| 477 | frame++; |
|---|
| 478 | } |
|---|
| 479 | break; |
|---|
| 480 | } |
|---|
| 481 | } |
|---|
| 482 | else |
|---|
| 483 | { |
|---|
| 484 | switch(active_animation) |
|---|
| 485 | { |
|---|
| 486 | case ANIM_NONE: |
|---|
| 487 | cerr << "Redrawing" << endl; |
|---|
| 488 | break; |
|---|
| 489 | case CUBE: |
|---|
| 490 | cerr << "cube stop" << endl; |
|---|
| 491 | forward(widget); |
|---|
| 492 | current_face = next_face(); |
|---|
| 493 | break; |
|---|
| 494 | case SWITCH_FW: |
|---|
| 495 | cerr << "fw stop" << endl; |
|---|
| 496 | forward(widget); |
|---|
| 497 | current_face = next_face(); |
|---|
| 498 | break; |
|---|
| 499 | case SWITCH_BW: |
|---|
| 500 | cerr << "bw stop" << endl; |
|---|
| 501 | backward(widget); |
|---|
| 502 | current_face = prev_face(); |
|---|
| 503 | break; |
|---|
| 504 | case ZOOM0: |
|---|
| 505 | case ZOOM1: |
|---|
| 506 | case ZOOM2: |
|---|
| 507 | case ZOOM3: |
|---|
| 508 | case ZOOM4: |
|---|
| 509 | case ZOOMC: |
|---|
| 510 | default: |
|---|
| 511 | cerr << "default stop" << endl; |
|---|
| 512 | break; |
|---|
| 513 | |
|---|
| 514 | } |
|---|
| 515 | |
|---|
| 516 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
|---|
| 517 | glMatrixMode(GL_PROJECTION); |
|---|
| 518 | glLoadIdentity(); |
|---|
| 519 | gluPerspective( persp, |
|---|
| 520 | 1.0, |
|---|
| 521 | 0.5, |
|---|
| 522 | 10.0); |
|---|
| 523 | glMatrixMode(GL_MODELVIEW); |
|---|
| 524 | glLoadIdentity(); |
|---|
| 525 | gluLookAt(lookposx, lookposy, lookposz, atx, aty, atz, 0,1,0); |
|---|
| 526 | glRotatef(angle, 0.0, 1.0, 0.0); |
|---|
| 527 | drawCube(); |
|---|
| 528 | |
|---|
| 529 | glRasterPos3f(0, -1.4, 0); |
|---|
| 530 | GLuint rcube[] = { |
|---|
| 531 | 0,0,0,127 |
|---|
| 532 | }; |
|---|
| 533 | glDrawPixels(1, 1, GL_RGBA, GL_UNSIGNED_BYTE, rcube); |
|---|
| 534 | |
|---|
| 535 | active_animation = ANIM_NONE; |
|---|
| 536 | |
|---|
| 537 | cerr << "Ok!" << endl; |
|---|
| 538 | } |
|---|
| 539 | } |
|---|
| 540 | |
|---|
| 541 | int prev_face() |
|---|
| 542 | { |
|---|
| 543 | if(current_face-1 < 0) return 3; |
|---|
| 544 | else return current_face -1; |
|---|
| 545 | } |
|---|
| 546 | |
|---|
| 547 | int next_face() |
|---|
| 548 | { |
|---|
| 549 | if(current_face+1 > 3) return 0; |
|---|
| 550 | else return current_face+1; |
|---|
| 551 | } |
|---|
| 552 | |
|---|
| 553 | int prev_page() |
|---|
| 554 | { |
|---|
| 555 | assert(current_page >= 0); |
|---|
| 556 | if(current_page == 0) return total_pages-1; |
|---|
| 557 | else return current_page-1; |
|---|
| 558 | } |
|---|
| 559 | |
|---|
| 560 | int next_page() |
|---|
| 561 | { |
|---|
| 562 | assert(current_page < total_pages); |
|---|
| 563 | if(current_page == total_pages-1) return 0; |
|---|
| 564 | else return current_page+1; |
|---|
| 565 | } |
|---|
| 566 | |
|---|
| 567 | void |
|---|
| 568 | forward(GtkWidget *widget) |
|---|
| 569 | { |
|---|
| 570 | update_textures_dir(widget, true); |
|---|
| 571 | cerr << "Current page: " << current_page << endl; |
|---|
| 572 | } |
|---|
| 573 | |
|---|
| 574 | void |
|---|
| 575 | backward(GtkWidget *widget) |
|---|
| 576 | { |
|---|
| 577 | update_textures_dir(widget, false); |
|---|
| 578 | cerr << "Current page: " << current_page << endl; |
|---|
| 579 | } |
|---|
| 580 | |
|---|
| 581 | void |
|---|
| 582 | reset(GtkWidget *widget) |
|---|
| 583 | { |
|---|
| 584 | animating = FALSE; |
|---|
| 585 | frame = 0; |
|---|
| 586 | lookposx = 0.0; |
|---|
| 587 | lookposy = 0.0; |
|---|
| 588 | lookposz = 3.48; |
|---|
| 589 | atx = 0.0; |
|---|
| 590 | aty = 0.0; |
|---|
| 591 | atz = 0.0; |
|---|
| 592 | persp = 44.0; |
|---|
| 593 | angle = 0.0; |
|---|
| 594 | current_face = 0; |
|---|
| 595 | active_animation = ANIM_NONE; |
|---|
| 596 | previous_animation = ANIM_NONE; |
|---|
| 597 | last_animation = ANIM_NONE; |
|---|
| 598 | update_textures(widget); |
|---|
| 599 | } |
|---|
| 600 | |
|---|
| 601 | // shift old textures and render the new page |
|---|
| 602 | // texmap[0] -> current page |
|---|
| 603 | // texmap[1] -> prev page |
|---|
| 604 | // texmap[2] -> next page |
|---|
| 605 | void update_textures_dir(GtkWidget *widget, bool forward) |
|---|
| 606 | { |
|---|
| 607 | assert(current_page >= 0); |
|---|
| 608 | assert(current_page < total_pages); |
|---|
| 609 | |
|---|
| 610 | if(forward) |
|---|
| 611 | { |
|---|
| 612 | current_page=next_page(); |
|---|
| 613 | int tmp = texmap[2]; |
|---|
| 614 | texmap[2] = texmap[1]; |
|---|
| 615 | texmap[1] = texmap[0]; |
|---|
| 616 | texmap[0] = tmp; |
|---|
| 617 | render_page(pixmap, next_page(), tex_width, tex_height); |
|---|
| 618 | } |
|---|
| 619 | else |
|---|
| 620 | { |
|---|
| 621 | current_page=prev_page(); |
|---|
| 622 | int tmp = texmap[0]; |
|---|
| 623 | texmap[0] = texmap[1]; |
|---|
| 624 | texmap[1] = texmap[2]; |
|---|
| 625 | texmap[2] = tmp; |
|---|
| 626 | render_page(pixmap, prev_page(), tex_width, tex_height); |
|---|
| 627 | } |
|---|
| 628 | |
|---|
| 629 | glBindTexture (GL_TEXTURE_RECTANGLE_ARB, |
|---|
| 630 | textures[texmap[forward ? 2 : 1]]); |
|---|
| 631 | glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, |
|---|
| 632 | 0, |
|---|
| 633 | GL_RGBA, |
|---|
| 634 | tex_width, |
|---|
| 635 | tex_height, |
|---|
| 636 | 0, |
|---|
| 637 | GL_RGBA, |
|---|
| 638 | GL_UNSIGNED_BYTE, |
|---|
| 639 | gdk_pixbuf_get_pixels(pixmap)); |
|---|
| 640 | |
|---|
| 641 | gdk_window_invalidate_rect (widget->window, &widget->allocation, FALSE); |
|---|
| 642 | |
|---|
| 643 | } |
|---|
| 644 | |
|---|
| 645 | // render all (3) textures |
|---|
| 646 | void update_textures(GtkWidget *widget) |
|---|
| 647 | { |
|---|
| 648 | assert(current_page >= 0); |
|---|
| 649 | assert(current_page < total_pages); |
|---|
| 650 | |
|---|
| 651 | render_page(pixmap, current_page, tex_width, tex_height); |
|---|
| 652 | glBindTexture (GL_TEXTURE_RECTANGLE_ARB, textures[texmap[0]]); |
|---|
| 653 | glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, |
|---|
| 654 | 0, |
|---|
| 655 | GL_RGBA, |
|---|
| 656 | tex_width, |
|---|
| 657 | tex_height, |
|---|
| 658 | 0, |
|---|
| 659 | GL_RGBA, |
|---|
| 660 | GL_UNSIGNED_BYTE, |
|---|
| 661 | gdk_pixbuf_get_pixels(pixmap)); |
|---|
| 662 | |
|---|
| 663 | render_page(pixmap, prev_page(), tex_width, tex_height); |
|---|
| 664 | glBindTexture (GL_TEXTURE_RECTANGLE_ARB, textures[texmap[1]]); |
|---|
| 665 | glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, |
|---|
| 666 | 0, |
|---|
| 667 | GL_RGBA, |
|---|
| 668 | tex_width, |
|---|
| 669 | tex_height, |
|---|
| 670 | 0, |
|---|
| 671 | GL_RGBA, |
|---|
| 672 | GL_UNSIGNED_BYTE, |
|---|
| 673 | gdk_pixbuf_get_pixels(pixmap)); |
|---|
| 674 | |
|---|
| 675 | render_page(pixmap, next_page(), tex_width, tex_height); |
|---|
| 676 | glBindTexture (GL_TEXTURE_RECTANGLE_ARB, textures[texmap[2]]); |
|---|
| 677 | glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, |
|---|
| 678 | 0, |
|---|
| 679 | GL_RGBA, |
|---|
| 680 | tex_width, |
|---|
| 681 | tex_height, |
|---|
| 682 | 0, |
|---|
| 683 | GL_RGBA, |
|---|
| 684 | GL_UNSIGNED_BYTE, |
|---|
| 685 | gdk_pixbuf_get_pixels(pixmap)); |
|---|
| 686 | |
|---|
| 687 | |
|---|
| 688 | gdk_window_invalidate_rect (widget->window, &widget->allocation, FALSE); |
|---|
| 689 | |
|---|
| 690 | } |
|---|
| 691 | |
|---|
| 692 | protected: |
|---|
| 693 | PopplerDocument* doc; |
|---|
| 694 | int current_page; |
|---|
| 695 | int current_face; |
|---|
| 696 | const int total_pages; |
|---|
| 697 | int frame; |
|---|
| 698 | double lookposx, lookposy, lookposz; |
|---|
| 699 | double atx, aty, atz; |
|---|
| 700 | double persp, angle; |
|---|
| 701 | GdkPixbuf* pixmap; |
|---|
| 702 | int texmap[3]; |
|---|
| 703 | |
|---|
| 704 | // OpenGL Textures |
|---|
| 705 | GLuint textures[3]; |
|---|
| 706 | |
|---|
| 707 | // Width and Height of the rendered pixmap (aspect |
|---|
| 708 | // ratio is fixed, should instead depend on the |
|---|
| 709 | // aspect ratio of the pdf page) |
|---|
| 710 | static const gint tex_width = (gint)(3*1024/2); |
|---|
| 711 | static const gint tex_height = (gint)(3*768/2); |
|---|
| 712 | |
|---|
| 713 | // Cube Normals |
|---|
| 714 | static const GLfloat n[6][3]; |
|---|
| 715 | // Cube Faces |
|---|
| 716 | static const GLint faces[6][4]; |
|---|
| 717 | // Cube vertex (filled in pdfcube->initialize()) |
|---|
| 718 | GLfloat v[8][3]; |
|---|
| 719 | // Cube texture mapping |
|---|
| 720 | static const GLfloat mapping[6][8]; |
|---|
| 721 | // Cube Rotation Animation steps (17 frames) |
|---|
| 722 | // Cube rotation at each frame |
|---|
| 723 | static const GLfloat steps[17]; |
|---|
| 724 | // x camera movement |
|---|
| 725 | static const double xsteps[17]; |
|---|
| 726 | // z camera movement |
|---|
| 727 | static const double zsteps[17]; |
|---|
| 728 | static const double zoomsteps[17]; |
|---|
| 729 | static const double perspsteps[17]; |
|---|
| 730 | static const double perspstepsc[17]; |
|---|
| 731 | |
|---|
| 732 | void |
|---|
| 733 | render_page(GdkPixbuf* pm, int i, gint iWidth, gint iHeight) |
|---|
| 734 | { |
|---|
| 735 | PopplerPage *page = NULL; |
|---|
| 736 | page = poppler_document_get_page(doc, i); |
|---|
| 737 | assert(page); |
|---|
| 738 | double w, h; |
|---|
| 739 | poppler_page_get_size(page, &w, &h); |
|---|
| 740 | poppler_page_render_to_pixbuf(page, 0,0,iWidth,iHeight,1.0*iWidth/w,0,pm); |
|---|
| 741 | } |
|---|
| 742 | |
|---|
| 743 | void |
|---|
| 744 | drawCube(void) |
|---|
| 745 | { |
|---|
| 746 | int i; |
|---|
| 747 | |
|---|
| 748 | for (i = 0; i < 6; i++) |
|---|
| 749 | { |
|---|
| 750 | if(i == current_face) |
|---|
| 751 | { |
|---|
| 752 | glEnable (GL_TEXTURE_RECTANGLE_ARB); |
|---|
| 753 | glBindTexture (GL_TEXTURE_RECTANGLE_ARB, textures[texmap[0]]); |
|---|
| 754 | } |
|---|
| 755 | else if(i == prev_face()) |
|---|
| 756 | { |
|---|
| 757 | glEnable (GL_TEXTURE_RECTANGLE_ARB); |
|---|
| 758 | glBindTexture (GL_TEXTURE_RECTANGLE_ARB, textures[texmap[1]]); |
|---|
| 759 | } |
|---|
| 760 | else if(i == next_face()) |
|---|
| 761 | { |
|---|
| 762 | glEnable (GL_TEXTURE_RECTANGLE_ARB); |
|---|
| 763 | glBindTexture (GL_TEXTURE_RECTANGLE_ARB, textures[texmap[2]]); |
|---|
| 764 | } |
|---|
| 765 | else if(i <= 3) |
|---|
| 766 | { |
|---|
| 767 | glDisable(GL_TEXTURE_RECTANGLE_ARB); |
|---|
| 768 | glColor4f(0.4, 0.0, 0.0, 1.0); |
|---|
| 769 | } |
|---|
| 770 | else |
|---|
| 771 | { |
|---|
| 772 | glDisable(GL_TEXTURE_RECTANGLE_ARB); |
|---|
| 773 | glColor4f(1.0, 1.0, 1.0, 1.0); |
|---|
| 774 | } |
|---|
| 775 | glBegin(GL_QUADS); |
|---|
| 776 | glNormal3fv(&n[i][0]); |
|---|
| 777 | glTexCoord2f((1.0-mapping[i][4]) * tex_width, |
|---|
| 778 | mapping[i][5] * tex_height); |
|---|
| 779 | glVertex3fv(&v[faces[i][0]][0]); |
|---|
| 780 | |
|---|
| 781 | glTexCoord2f((1.0-mapping[i][6]) * tex_width, |
|---|
| 782 | mapping[i][7] * tex_height); |
|---|
| 783 | glVertex3fv(&v[faces[i][1]][0]); |
|---|
| 784 | |
|---|
| 785 | glTexCoord2f((1.0-mapping[i][0]) * tex_width, |
|---|
| 786 | mapping[i][1] * tex_height); |
|---|
| 787 | glVertex3fv(&v[faces[i][2]][0]); |
|---|
| 788 | |
|---|
| 789 | glTexCoord2f((1.0-mapping[i][2]) * tex_width, |
|---|
| 790 | mapping[i][3] * tex_height); |
|---|
| 791 | glVertex3fv(&v[faces[i][3]][0]); |
|---|
| 792 | |
|---|
| 793 | glEnd(); |
|---|
| 794 | } |
|---|
| 795 | } |
|---|
| 796 | }; |
|---|
| 797 | |
|---|
| 798 | const GLfloat pdfcube::n[6][3] = { |
|---|
| 799 | {0.0, 0.0, -1.0}, {1.0, 0.0, 0.0}, {0.0, 0.0, 1.0}, {-1.0, 0.0, 0.0}, |
|---|
| 800 | {0.0, 1.0, 0.0}, {0.0, -1.0, 0.0} |
|---|
| 801 | }; |
|---|
| 802 | const GLint pdfcube::faces[6][4] = { |
|---|
| 803 | {7, 4, 0, 3}, {7, 6, 5, 4}, {5, 6, 2, 1}, {0, 1, 2, 3}, |
|---|
| 804 | {3, 2, 6, 7}, {4, 5, 1, 0} |
|---|
| 805 | }; |
|---|
| 806 | const GLfloat pdfcube::mapping[6][8] = { |
|---|
| 807 | {1.0, 1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0}, |
|---|
| 808 | {0.0, 1.0, 1.0, 1.0, 1.0, 0.0, 0.0, 0.0}, |
|---|
| 809 | {0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0, 0.0}, |
|---|
| 810 | {1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0}, |
|---|
| 811 | {1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0}, // top |
|---|
| 812 | {1.0, 1.0, 0.0, 1.0, 0.0, 0.0, 1.0, 0.0}, // bottom |
|---|
| 813 | }; |
|---|
| 814 | const GLfloat pdfcube::steps[17] = |
|---|
| 815 | { 2.0, 2.5, 3, 4, 5, 6, 8, 10, |
|---|
| 816 | 14, 10, 8, 6, 4, 3, 2.5, 2.0, 0.0 }; |
|---|
| 817 | const double pdfcube::xsteps[17] = |
|---|
| 818 | { 0.01, 0.03, 0.07, 0.12, 0.16, 0.18, 0.20, 0.21, |
|---|
| 819 | 0.21, 0.20, 0.18, 0.16, 0.12, 0.07, 0.03, 0.01, 0.00 }; |
|---|
| 820 | const double pdfcube::zsteps[17] = |
|---|
| 821 | { -0.01, -0.02, -0.04, -0.05, -0.04, -0.02, -0.02, -0.01, |
|---|
| 822 | 0.01, 0.02, 0.02, 0.04, 0.05, 0.04, 0.02, 0.01, 0.00 }; |
|---|
| 823 | const double pdfcube::zoomsteps[17] = |
|---|
| 824 | { 0.00, 0.01, 0.02, 0.03, 0.05, 0.07, 0.10, 0.13, 0.17, |
|---|
| 825 | 0.21, 0.25, 0.29, 0.32, 0.35, 0.37, 0.38, 0.38 }; |
|---|
| 826 | const double pdfcube::perspsteps[17] = |
|---|
| 827 | { 44.0, 44.0, 44.0, 44.00, 44.00, 43.00, 42.00, 40.00, |
|---|
| 828 | 38.00, 36.00, 33.00, 30.00, 27.00, 24.00, 22.00, 21.00, 21.00 }; |
|---|
| 829 | const double pdfcube::perspstepsc[17] = |
|---|
| 830 | { 44.0, 44.0, 44.0, 44.00, 44.00, 43.00, 42.00, 40.00, |
|---|
| 831 | 38.00, 36.00, 34.00, 32.00, 31.00, 30.00, 30.00, 30.00, 30.00 }; |
|---|
| 832 | |
|---|
| 833 | pdfcube* pc; |
|---|
| 834 | |
|---|
| 835 | ////////////////////////////////////////////////////////////////////////// |
|---|
| 836 | // Callbacks |
|---|
| 837 | |
|---|
| 838 | /*** |
|---|
| 839 | *** The "realize" signal handler. All the OpenGL initialization |
|---|
| 840 | *** should be performed here, such as default background colour, |
|---|
| 841 | *** certain states etc. |
|---|
| 842 | ***/ |
|---|
| 843 | static void |
|---|
| 844 | realize (GtkWidget *widget, |
|---|
| 845 | gpointer data) |
|---|
| 846 | { |
|---|
| 847 | GdkGLContext *glcontext = gtk_widget_get_gl_context (widget); |
|---|
| 848 | GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable (widget); |
|---|
| 849 | |
|---|
| 850 | g_print ("%s: \"realize\"\n", gtk_widget_get_name (widget)); |
|---|
| 851 | |
|---|
| 852 | //g_mutex_lock (gl_mutex); |
|---|
| 853 | |
|---|
| 854 | /*** OpenGL BEGIN ***/ |
|---|
| 855 | if (!gdk_gl_drawable_gl_begin (gldrawable, glcontext)) |
|---|
| 856 | return; |
|---|
| 857 | |
|---|
| 858 | pc->initialize(widget); |
|---|
| 859 | |
|---|
| 860 | gdk_gl_drawable_gl_end (gldrawable); |
|---|
| 861 | /*** OpenGL END ***/ |
|---|
| 862 | //g_mutex_unlock (gl_mutex); |
|---|
| 863 | } |
|---|
| 864 | |
|---|
| 865 | /*** |
|---|
| 866 | *** The "configure_event" signal handler. Any processing required when |
|---|
| 867 | *** the OpenGL-capable drawing area is re-configured should be done here. |
|---|
| 868 | *** Almost always it will be used to resize the OpenGL viewport when |
|---|
| 869 | *** the window is resized. |
|---|
| 870 | ***/ |
|---|
| 871 | static gboolean |
|---|
| 872 | configure_event (GtkWidget *widget, |
|---|
| 873 | GdkEventConfigure *event, |
|---|
| 874 | gpointer data) |
|---|
| 875 | { |
|---|
| 876 | GdkGLContext *glcontext = gtk_widget_get_gl_context (widget); |
|---|
| 877 | GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable (widget); |
|---|
| 878 | |
|---|
| 879 | GLsizei w = widget->allocation.width; |
|---|
| 880 | GLsizei h = widget->allocation.height; |
|---|
| 881 | |
|---|
| 882 | g_print ("%s: \"configure_event\"\n", gtk_widget_get_name (widget)); |
|---|
| 883 | |
|---|
| 884 | //g_mutex_lock (gl_mutex); |
|---|
| 885 | /*** OpenGL BEGIN ***/ |
|---|
| 886 | if (!gdk_gl_drawable_gl_begin (gldrawable, glcontext)) |
|---|
| 887 | return FALSE; |
|---|
| 888 | |
|---|
| 889 | glViewport (0, 0, w, h); |
|---|
| 890 | |
|---|
| 891 | gdk_gl_drawable_gl_end (gldrawable); |
|---|
| 892 | |
|---|
| 893 | /*** OpenGL END ***/ |
|---|
| 894 | //g_mutex_unlock (gl_mutex); |
|---|
| 895 | |
|---|
| 896 | return TRUE; |
|---|
| 897 | } |
|---|
| 898 | |
|---|
| 899 | /*** |
|---|
| 900 | *** The "expose_event" signal handler. All the OpenGL re-drawing should |
|---|
| 901 | *** be done here. This is repeatedly called as the painting routine |
|---|
| 902 | *** every time the 'expose'/'draw' event is signalled. |
|---|
| 903 | ***/ |
|---|
| 904 | static gboolean |
|---|
| 905 | expose_event (GtkWidget *widget, |
|---|
| 906 | GdkEventExpose *event, |
|---|
| 907 | gpointer data) |
|---|
| 908 | { |
|---|
| 909 | GdkGLContext *glcontext = gtk_widget_get_gl_context (widget); |
|---|
| 910 | GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable (widget); |
|---|
| 911 | |
|---|
| 912 | //g_mutex_lock (gl_mutex); |
|---|
| 913 | /*** OpenGL BEGIN ***/ |
|---|
| 914 | if (!gdk_gl_drawable_gl_begin (gldrawable, glcontext)) |
|---|
| 915 | return FALSE; |
|---|
| 916 | |
|---|
| 917 | glDrawBuffer(GL_BACK); |
|---|
| 918 | |
|---|
| 919 | pc->redraw(widget); |
|---|
| 920 | |
|---|
| 921 | /* Swap buffers */ |
|---|
| 922 | if (gdk_gl_drawable_is_double_buffered (gldrawable)) |
|---|
| 923 | gdk_gl_drawable_swap_buffers (gldrawable); |
|---|
| 924 | else |
|---|
| 925 | glFlush (); |
|---|
| 926 | |
|---|
| 927 | |
|---|
| 928 | gdk_gl_drawable_gl_end (gldrawable); |
|---|
| 929 | /*** OpenGL END ***/ |
|---|
| 930 | |
|---|
| 931 | //g_mutex_unlock (gl_mutex); |
|---|
| 932 | |
|---|
| 933 | return TRUE; |
|---|
| 934 | } |
|---|
| 935 | |
|---|
| 936 | /*** |
|---|
| 937 | *** The timeout function. Often in animations, |
|---|
| 938 | *** timeout functions are suitable for continous |
|---|
| 939 | *** frame updates. |
|---|
| 940 | ***/ |
|---|
| 941 | static gboolean |
|---|
| 942 | timeout (GtkWidget *widget) |
|---|
| 943 | { |
|---|
| 944 | /* Invalidate the whole window. */ |
|---|
| 945 | gdk_window_invalidate_rect (widget->window, &widget->allocation, FALSE); |
|---|
| 946 | |
|---|
| 947 | /* Update synchronously. */ |
|---|
| 948 | gdk_window_process_updates (widget->window, FALSE); |
|---|
| 949 | |
|---|
| 950 | return TRUE; |
|---|
| 951 | } |
|---|
| 952 | |
|---|
| 953 | /*** |
|---|
| 954 | *** The "unrealize" signal handler. Any processing required when |
|---|
| 955 | *** the OpenGL-capable window is unrealized should be done here. |
|---|
| 956 | ***/ |
|---|
| 957 | static void |
|---|
| 958 | unrealize (GtkWidget *widget, |
|---|
| 959 | gpointer data) |
|---|
| 960 | { |
|---|
| 961 | GdkGLContext *glcontext = gtk_widget_get_gl_context (widget); |
|---|
| 962 | GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable (widget); |
|---|
| 963 | |
|---|
| 964 | g_print ("%s: \"unrealize\"\n", gtk_widget_get_name (widget)); |
|---|
| 965 | |
|---|
| 966 | //g_mutex_lock (gl_mutex); |
|---|
| 967 | |
|---|
| 968 | /*** OpenGL BEGIN ***/ |
|---|
| 969 | if (!gdk_gl_drawable_gl_begin (gldrawable, glcontext)) |
|---|
| 970 | return; |
|---|
| 971 | |
|---|
| 972 | gdk_gl_drawable_gl_end (gldrawable); |
|---|
| 973 | /*** OpenGL END ***/ |
|---|
| 974 | //g_mutex_unlock (gl_mutex); |
|---|
| 975 | } |
|---|
| 976 | |
|---|
| 977 | /*** |
|---|
| 978 | *** The "motion_notify_event" signal handler. Any processing required when |
|---|
| 979 | *** the OpenGL-capable drawing area is under drag motion should be done here. |
|---|
| 980 | ***/ |
|---|
| 981 | static gboolean |
|---|
| 982 | motion_notify_event (GtkWidget *widget, |
|---|
| 983 | GdkEventMotion *event, |
|---|
| 984 | gpointer data) |
|---|
| 985 | { |
|---|
| 986 | g_print ("%s: \"motion_notify_event\": button", gtk_widget_get_name (widget)); |
|---|
| 987 | |
|---|
| 988 | if (event->state & GDK_BUTTON1_MASK) |
|---|
| 989 | { |
|---|
| 990 | g_print (" 1"); |
|---|
| 991 | } |
|---|
| 992 | |
|---|
| 993 | if (event->state & GDK_BUTTON2_MASK) |
|---|
| 994 | { |
|---|
| 995 | g_print (" 2"); |
|---|
| 996 | } |
|---|
| 997 | |
|---|
| 998 | if (event->state & GDK_BUTTON3_MASK) |
|---|
| 999 | { |
|---|
| 1000 | g_print (" 3"); |
|---|
| 1001 | } |
|---|
| 1002 | |
|---|
| 1003 | g_print ("\n"); |
|---|
| 1004 | |
|---|
| 1005 | return FALSE; |
|---|
| 1006 | } |
|---|
| 1007 | |
|---|
| 1008 | /*** |
|---|
| 1009 | *** The "button_press_event" signal handler. Any processing required when |
|---|
| 1010 | *** mouse buttons (only left and middle buttons) are pressed on the OpenGL- |
|---|
| 1011 | *** capable drawing area should be done here. |
|---|
| 1012 | ***/ |
|---|
| 1013 | static gboolean |
|---|
| 1014 | button_press_event (GtkWidget *widget, |
|---|
| 1015 | GdkEventButton *event, |
|---|
| 1016 | gpointer data) |
|---|
| 1017 | { |
|---|
| 1018 | g_print ("%s: \"button_press_event\": ", gtk_widget_get_name (widget)); |
|---|
| 1019 | |
|---|
| 1020 | if (event->button == 1) |
|---|
| 1021 | { |
|---|
| 1022 | g_print ("button 1\n"); |
|---|
| 1023 | |
|---|
| 1024 | return TRUE; |
|---|
| 1025 | } |
|---|
| 1026 | |
|---|
| 1027 | if (event->button == 2) |
|---|
| 1028 | { |
|---|
| 1029 | g_print ("button 2\n"); |
|---|
| 1030 | |
|---|
| 1031 | return TRUE; |
|---|
| 1032 | } |
|---|
| 1033 | |
|---|
| 1034 | g_print ("\n"); |
|---|
| 1035 | |
|---|
| 1036 | return FALSE; |
|---|
| 1037 | } |
|---|
| 1038 | |
|---|
| 1039 | /*** |
|---|
| 1040 | *** The "key_press_event" signal handler. Any processing required when key |
|---|
| 1041 | *** presses occur should be done here. |
|---|
| 1042 | ***/ |
|---|
| 1043 | static gboolean |
|---|
| 1044 | key_press_event (GtkWidget *widget, |
|---|
| 1045 | GdkEventKey *event, |
|---|
| 1046 | gpointer data) |
|---|
| 1047 | { |
|---|
| 1048 | g_print ("%s: \"key_press_event\": ", gtk_widget_get_name (widget)); |
|---|
| 1049 | |
|---|
| 1050 | if(event->state == GDK_CONTROL_MASK) |
|---|
| 1051 | |
|---|
| 1052 | switch (event->keyval) |
|---|
| 1053 | { |
|---|
| 1054 | case GDK_1: |
|---|
| 1055 | case GDK_2: |
|---|
| 1056 | case GDK_3: |
|---|
| 1057 | case GDK_4: |
|---|
| 1058 | case GDK_5: |
|---|
| 1059 | case GDK_6: |
|---|
| 1060 | case GDK_7: |
|---|
| 1061 | case GDK_8: |
|---|
| 1062 | case GDK_9: |
|---|
| 1063 | g_print ("n key\n"); |
|---|
| 1064 | if(sleeping()) |
|---|
| 1065 | pc->section(widget, event->keyval - GDK_1 + 1); |
|---|
| 1066 | break; |
|---|
| 1067 | |
|---|
| 1068 | // Let's quit |
|---|
| 1069 | case GDK_q: |
|---|
| 1070 | g_print ("Escape key\n"); |
|---|
| 1071 | gtk_main_quit (); |
|---|
| 1072 | break; |
|---|
| 1073 | |
|---|
| 1074 | // Update all textures |
|---|
| 1075 | case GDK_l: |
|---|
| 1076 | g_print ("u key\n"); |
|---|
| 1077 | cerr << "Pagina: " << pc->page() << endl; |
|---|
| 1078 | pc->reset(widget); |
|---|
| 1079 | break; |
|---|
| 1080 | } |
|---|
| 1081 | else |
|---|
| 1082 | switch (event->keyval) |
|---|
| 1083 | { |
|---|
| 1084 | |
|---|
| 1085 | // return to page 1 |
|---|
| 1086 | case GDK_1: |
|---|
| 1087 | case GDK_2: |
|---|
| 1088 | case GDK_3: |
|---|
| 1089 | case GDK_4: |
|---|
| 1090 | case GDK_5: |
|---|
| 1091 | case GDK_6: |
|---|
| 1092 | case GDK_7: |
|---|
| 1093 | case GDK_8: |
|---|
| 1094 | case GDK_9: |
|---|
| 1095 | g_print ("n key\n"); |
|---|
| 1096 | if(sleeping()) |
|---|
| 1097 | pc->go_to(widget, (event->keyval - GDK_1) * 5); |
|---|
| 1098 | break; |
|---|
| 1099 | |
|---|
| 1100 | // Animated Cube Advancement |
|---|
| 1101 | case GDK_a: |
|---|
| 1102 | case GDK_c: |
|---|
| 1103 | g_print ("c key\n"); |
|---|
| 1104 | if(sleeping()) |
|---|
| 1105 | start_animation(widget, CUBE); |
|---|
| 1106 | break; |
|---|
| 1107 | |
|---|
| 1108 | // Quick switch to next page |
|---|
| 1109 | case GDK_Page_Down: |
|---|
| 1110 | case GDK_Right: |
|---|
| 1111 | g_print ("s key\n"); |
|---|
| 1112 | if(sleeping()) |
|---|
| 1113 | start_animation(widget, SWITCH_FW); |
|---|
| 1114 | break; |
|---|
| 1115 | |
|---|
| 1116 | // Quick switch to previous page |
|---|
| 1117 | case GDK_Page_Up: |
|---|
| 1118 | case GDK_Left: |
|---|
| 1119 | g_print ("q key\n"); |
|---|
| 1120 | if(sleeping()) |
|---|
| 1121 | start_animation(widget, SWITCH_BW); |
|---|
| 1122 | break; |
|---|
| 1123 | |
|---|
| 1124 | |
|---|
| 1125 | |
|---|
| 1126 | case GDK_g: |
|---|
| 1127 | if(sleeping()) |
|---|
| 1128 | if(last_animation >= ZOOM1 and last_animation <= ZOOMC) |
|---|
| 1129 | start_animation(widget, ZOOM0); |
|---|
| 1130 | break; |
|---|
| 1131 | |
|---|
| 1132 | case GDK_h: |
|---|
| 1133 | if(sleeping()) |
|---|
| 1134 | if(last_animation >= ZOOM1 and last_animation <= ZOOMC) |
|---|
| 1135 | start_animation(widget, ZOOM0); |
|---|
| 1136 | else |
|---|
| 1137 | start_animation(widget, ZOOM1); |
|---|
| 1138 | break; |
|---|
| 1139 | |
|---|
| 1140 | case GDK_j: |
|---|
| 1141 | if(sleeping()) |
|---|
| 1142 | if(last_animation >= ZOOM1 and last_animation <= ZOOMC) |
|---|
| 1143 | start_animation(widget, ZOOM0); |
|---|
| 1144 | else |
|---|
| 1145 | start_animation(widget, ZOOM2); |
|---|
| 1146 | break; |
|---|
| 1147 | |
|---|
| 1148 | case GDK_k: |
|---|
| 1149 | if(sleeping()) |
|---|
| 1150 | if(last_animation >= ZOOM1 and last_animation <= ZOOMC) |
|---|
| 1151 | start_animation(widget, ZOOM0); |
|---|
| 1152 | else |
|---|
| 1153 | start_animation(widget, ZOOM3); |
|---|
| 1154 | break; |
|---|
| 1155 | |
|---|
| 1156 | case GDK_l: |
|---|
| 1157 | if(sleeping()) |
|---|
| 1158 | if(last_animation >= ZOOM1 and last_animation <= ZOOMC) |
|---|
| 1159 | start_animation(widget, ZOOM0); |
|---|
| 1160 | else |
|---|
| 1161 | start_animation(widget, ZOOM4); |
|---|
| 1162 | break; |
|---|
| 1163 | |
|---|
| 1164 | case GDK_z: |
|---|
| 1165 | if(sleeping()) |
|---|
| 1166 | if(last_animation >= ZOOM1 and last_animation <= ZOOMC) |
|---|
| 1167 | start_animation(widget, ZOOM0); |
|---|
| 1168 | else |
|---|
| 1169 | start_animation(widget, ZOOMC); |
|---|
| 1170 | break; |
|---|
| 1171 | |
|---|
| 1172 | |
|---|
| 1173 | // Automatic advance (you should se the Animated slides on the command line) |
|---|
| 1174 | case GDK_space: |
|---|
| 1175 | if(page_transition[pc->page()] and sleeping()) |
|---|
| 1176 | start_animation(widget, CUBE); |
|---|
| 1177 | else if(sleeping()) |
|---|
| 1178 | start_animation(widget, SWITCH_FW); |
|---|
| 1179 | |
|---|
| 1180 | break; |
|---|
| 1181 | |
|---|
| 1182 | // switch fullscreen |
|---|
| 1183 | case GDK_f: |
|---|
| 1184 | if( (fullscreen = !fullscreen) == true) |
|---|
| 1185 | gtk_window_fullscreen((GtkWindow*)(data)); |
|---|
| 1186 | else |
|---|
| 1187 | gtk_window_unfullscreen((GtkWindow*)(data)); |
|---|
| 1188 | break; |
|---|
| 1189 | |
|---|
| 1190 | // Let's quit |
|---|
| 1191 | case GDK_Escape: |
|---|
| 1192 | g_print ("Escape key\n"); |
|---|
| 1193 | gtk_main_quit (); |
|---|
| 1194 | break; |
|---|
| 1195 | |
|---|
| 1196 | default: |
|---|
| 1197 | g_print("\n"); |
|---|
| 1198 | return FALSE; |
|---|
| 1199 | } |
|---|
| 1200 | |
|---|
| 1201 | return TRUE; |
|---|
| 1202 | } |
|---|
| 1203 | |
|---|
| 1204 | |
|---|
| 1205 | ////////////////////////////////////////////////////////////////////////// |
|---|
| 1206 | // Timeout functions |
|---|
| 1207 | |
|---|
| 1208 | /*** |
|---|
| 1209 | *** Helper functions to add or remove the timeout function. |
|---|
| 1210 | ***/ |
|---|
| 1211 | |
|---|
| 1212 | static guint timeout_id = 0; |
|---|
| 1213 | |
|---|
| 1214 | static void |
|---|
| 1215 | timeout_add (GtkWidget *widget) |
|---|
| 1216 | { |
|---|
| 1217 | if (timeout_id == 0) |
|---|
| 1218 | { |
|---|
| 1219 | timeout_id = g_timeout_add (TIMEOUT_INTERVAL, |
|---|
| 1220 | (GSourceFunc) timeout, |
|---|
| 1221 | widget); |
|---|
| 1222 | } |
|---|
| 1223 | } |
|---|
| 1224 | |
|---|
| 1225 | static void |
|---|
| 1226 | timeout_remove (GtkWidget *widget) |
|---|
| 1227 | { |
|---|
| 1228 | if (timeout_id != 0) |
|---|
| 1229 | { |
|---|
| 1230 | g_source_remove (timeout_id); |
|---|
| 1231 | timeout_id = 0; |
|---|
| 1232 | } |
|---|
| 1233 | } |
|---|
| 1234 | |
|---|
| 1235 | /*** |
|---|
| 1236 | *** The "map_event" signal handler. Any processing required when the |
|---|
| 1237 | *** OpenGL-capable drawing area is mapped should be done here. |
|---|
| 1238 | ***/ |
|---|
| 1239 | static gboolean |
|---|
| 1240 | map_event (GtkWidget *widget, |
|---|
| 1241 | GdkEvent *event, |
|---|
| 1242 | gpointer data) |
|---|
| 1243 | { |
|---|
| 1244 | g_print ("%s: \"map_event\":\n", gtk_widget_get_name (widget)); |
|---|
| 1245 | if (animating) |
|---|
| 1246 | timeout_add (widget); |
|---|
| 1247 | |
|---|
| 1248 | return TRUE; |
|---|
| 1249 | } |
|---|
| 1250 | |
|---|
| 1251 | /*** |
|---|
| 1252 | *** The "unmap_event" signal handler. Any processing required when the |
|---|
| 1253 | *** OpenGL-capable drawing area is unmapped should be done here. |
|---|
| 1254 | ***/ |
|---|
| 1255 | static gboolean |
|---|
| 1256 | unmap_event (GtkWidget *widget, |
|---|
| 1257 | GdkEvent *event, |
|---|
| 1258 | gpointer data) |
|---|
| 1259 | { |
|---|
| 1260 | g_print ("%s: \"unmap_event\":\n", gtk_widget_get_name (widget)); |
|---|
| 1261 | timeout_remove (widget); |
|---|
| 1262 | |
|---|
| 1263 | return TRUE; |
|---|
| 1264 | } |
|---|
| 1265 | |
|---|
| 1266 | /*** |
|---|
| 1267 | *** The "visibility_notify_event" signal handler. Any processing required |
|---|
| 1268 | *** when the OpenGL-capable drawing area is visually obscured should be |
|---|
| 1269 | *** done here. |
|---|
| 1270 | ***/ |
|---|
| 1271 | static gboolean |
|---|
| 1272 | visibility_notify_event (GtkWidget *widget, |
|---|
| 1273 | GdkEventVisibility *event, |
|---|
| 1274 | gpointer data) |
|---|
| 1275 | { |
|---|
| 1276 | if (animating) |
|---|
| 1277 | { |
|---|
| 1278 | if (event->state == GDK_VISIBILITY_FULLY_OBSCURED) |
|---|
| 1279 | timeout_remove (widget); |
|---|
| 1280 | else |
|---|
| 1281 | timeout_add (widget); |
|---|
| 1282 | } |
|---|
| 1283 | |
|---|
| 1284 | return TRUE; |
|---|
| 1285 | } |
|---|
| 1286 | |
|---|
| 1287 | |
|---|
| 1288 | /************************************************************************** |
|---|
| 1289 | * The following section contains some miscellaneous utility functions. |
|---|
| 1290 | **************************************************************************/ |
|---|
| 1291 | |
|---|
| 1292 | /*** |
|---|
| 1293 | *** Toggle animation. |
|---|
| 1294 | ***/ |
|---|
| 1295 | static void |
|---|
| 1296 | start_animation(GtkWidget *widget, enum animation a) |
|---|
| 1297 | { |
|---|
| 1298 | if(sleeping()) |
|---|
| 1299 | { |
|---|
| 1300 | animating = true; |
|---|
| 1301 | previous_animation = last_animation; |
|---|
| 1302 | last_animation = active_animation = a; |
|---|
| 1303 | timeout_add(widget); |
|---|
| 1304 | } |
|---|
| 1305 | } |
|---|
| 1306 | |
|---|
| 1307 | static void |
|---|
| 1308 | stop_animation(GtkWidget *widget) |
|---|
| 1309 | { |
|---|
| 1310 | animating = false; |
|---|
| 1311 | timeout_remove(widget); |
|---|
| 1312 | gdk_window_invalidate_rect(widget->window, &widget->allocation, FALSE); |
|---|
| 1313 | gdk_window_process_updates (widget->window, FALSE); |
|---|
| 1314 | } |
|---|
| 1315 | |
|---|
| 1316 | ////////////////////////////////////////////////////////////////////////// |
|---|
| 1317 | // GTK+ GUI Functions |
|---|
| 1318 | |
|---|
| 1319 | /*** |
|---|
| 1320 | *** Creates the simple application window with one |
|---|
| 1321 | *** drawing area that has an OpenGL-capable visual. |
|---|
| 1322 | ***/ |
|---|
| 1323 | static GtkWidget * |
|---|
| 1324 | create_window (GdkGLConfig *glconfig) |
|---|
| 1325 | { |
|---|
| 1326 | GtkWidget *window; |
|---|
| 1327 | GtkWidget *vbox; |
|---|
| 1328 | GtkWidget *drawing_area; |
|---|
| 1329 | |
|---|
| 1330 | /* |
|---|
| 1331 | * Top-level window. |
|---|
| 1332 | */ |
|---|
| 1333 | |
|---|
| 1334 | window = gtk_window_new (GTK_WINDOW_TOPLEVEL); |
|---|
| 1335 | gtk_window_set_title (GTK_WINDOW (window), DEFAULT_TITLE); |
|---|
| 1336 | |
|---|
| 1337 | /* Get automatically redrawn if any of their children changed allocation. */ |
|---|
| 1338 | gtk_container_set_reallocate_redraws (GTK_CONTAINER (window), TRUE); |
|---|
| 1339 | |
|---|
| 1340 | /* Connect signal handlers to the window */ |
|---|
| 1341 | g_signal_connect (G_OBJECT (window), "delete_event", |
|---|
| 1342 | G_CALLBACK (gtk_main_quit), NULL); |
|---|
| 1343 | |
|---|
| 1344 | /* |
|---|
| 1345 | * VBox. |
|---|
| 1346 | */ |
|---|
| 1347 | |
|---|
| 1348 | vbox = gtk_vbox_new (FALSE, 0); |
|---|
| 1349 | gtk_container_add (GTK_CONTAINER (window), vbox); |
|---|
| 1350 | gtk_widget_show (vbox); |
|---|
| 1351 | |
|---|
| 1352 | /* |
|---|
| 1353 | * Drawing area to draw OpenGL scene. |
|---|
| 1354 | */ |
|---|
| 1355 | |
|---|
| 1356 | drawing_area = gtk_drawing_area_new (); |
|---|
| 1357 | gtk_widget_set_size_request (drawing_area, DEFAULT_WIDTH, DEFAULT_HEIGHT); |
|---|
| 1358 | |
|---|
| 1359 | /* Set OpenGL-capability to the widget */ |
|---|
| 1360 | gtk_widget_set_gl_capability (drawing_area, |
|---|
| 1361 | glconfig, |
|---|
| 1362 | NULL, |
|---|
| 1363 | TRUE, |
|---|
| 1364 | GDK_GL_RGBA_TYPE); |
|---|
| 1365 | |
|---|
| 1366 | gtk_widget_add_events (drawing_area, |
|---|
| 1367 | GDK_BUTTON1_MOTION_MASK | |
|---|
| 1368 | GDK_BUTTON2_MOTION_MASK | |
|---|
| 1369 | GDK_BUTTON_PRESS_MASK | |
|---|
| 1370 | GDK_VISIBILITY_NOTIFY_MASK); |
|---|
| 1371 | |
|---|
| 1372 | /* Connect signal handlers to the drawing area */ |
|---|
| 1373 | g_signal_connect_after (G_OBJECT (drawing_area), "realize", |
|---|
| 1374 | G_CALLBACK (realize), NULL); |
|---|
| 1375 | g_signal_connect (G_OBJECT (drawing_area), "configure_event", |
|---|
| 1376 | G_CALLBACK (configure_event), NULL); |
|---|
| 1377 | g_signal_connect (G_OBJECT (drawing_area), "expose_event", |
|---|
| 1378 | G_CALLBACK (expose_event), NULL); |
|---|
| 1379 | g_signal_connect (G_OBJECT (drawing_area), "unrealize", |
|---|
| 1380 | G_CALLBACK (unrealize), NULL); |
|---|
| 1381 | |
|---|
| 1382 | g_signal_connect (G_OBJECT (drawing_area), "motion_notify_event", |
|---|
| 1383 | G_CALLBACK (motion_notify_event), NULL); |
|---|
| 1384 | g_signal_connect (G_OBJECT (drawing_area), "button_press_event", |
|---|
| 1385 | G_CALLBACK (button_press_event), NULL); |
|---|
| 1386 | |
|---|
| 1387 | /* key_press_event handler for top-level window */ |
|---|
| 1388 | g_signal_connect_swapped (G_OBJECT (window), "key_press_event", |
|---|
| 1389 | G_CALLBACK (key_press_event), drawing_area); |
|---|
| 1390 | |
|---|
| 1391 | /* For timeout function. */ |
|---|
| 1392 | g_signal_connect (G_OBJECT (drawing_area), "map_event", |
|---|
| 1393 | G_CALLBACK (map_event), NULL); |
|---|
| 1394 | g_signal_connect (G_OBJECT (drawing_area), "unmap_event", |
|---|
| 1395 | G_CALLBACK (unmap_event), NULL); |
|---|
| 1396 | g_signal_connect (G_OBJECT (drawing_area), "visibility_notify_event", |
|---|
| 1397 | G_CALLBACK (visibility_notify_event), NULL); |
|---|
| 1398 | |
|---|
| 1399 | gtk_box_pack_start (GTK_BOX (vbox), drawing_area, TRUE, TRUE, 0); |
|---|
| 1400 | |
|---|
| 1401 | gtk_widget_show (drawing_area); |
|---|
| 1402 | |
|---|
| 1403 | return window; |
|---|
| 1404 | } |
|---|
| 1405 | |
|---|
| 1406 | /*** |
|---|
| 1407 | *** Configure the OpenGL framebuffer. |
|---|
| 1408 | ***/ |
|---|
| 1409 | static GdkGLConfig * |
|---|
| 1410 | configure_gl (void) |
|---|
| 1411 | { |
|---|
| 1412 | GdkGLConfig *glconfig; |
|---|
| 1413 | |
|---|
| 1414 | /* Try double-buffered visual */ |
|---|
| 1415 | glconfig = gdk_gl_config_new_by_mode ((GdkGLConfigMode) |
|---|
| 1416 | ( |
|---|
| 1417 | GDK_GL_MODE_RGBA | |
|---|
| 1418 | GDK_GL_MODE_ALPHA | |
|---|
| 1419 | GDK_GL_MODE_DEPTH | |
|---|
| 1420 | GDK_GL_MODE_DOUBLE)); |
|---|
| 1421 | if (glconfig == NULL) |
|---|
| 1422 | { |
|---|
| 1423 | g_print ("\n*** Cannot find the double-buffered visual.\n"); |
|---|
| 1424 | g_print ("\n*** Trying single-buffered visual.\n"); |
|---|
| 1425 | |
|---|
| 1426 | /* Try single-buffered visual */ |
|---|
| 1427 | glconfig = gdk_gl_config_new_by_mode ((GdkGLConfigMode) |
|---|
| 1428 | ( |
|---|
| 1429 | GDK_GL_MODE_RGB | |
|---|
| 1430 | GDK_GL_MODE_DEPTH)); |
|---|
| 1431 | if (glconfig == NULL) |
|---|
| 1432 | { |
|---|
| 1433 | g_print ("*** No appropriate OpenGL-capable visual found.\n"); |
|---|
| 1434 | exit (1); |
|---|
| 1435 | } |
|---|
| 1436 | } |
|---|
| 1437 | |
|---|
| 1438 | |
|---|
| 1439 | return glconfig; |
|---|
| 1440 | } |
|---|
| 1441 | |
|---|
| 1442 | /// |
|---|
| 1443 | /// @brief Gets the absolute path of a filename. |
|---|
| 1444 | /// |
|---|
| 1445 | /// This function checks if the given @a fileName is an absolute path. If |
|---|
| 1446 | /// it is then it returns a copy of it, otherwise it prepends the current |
|---|
| 1447 | /// working directory to it. |
|---|
| 1448 | /// |
|---|
| 1449 | /// @param fileName The filename to get the absolute path from. |
|---|
| 1450 | /// |
|---|
| 1451 | /// @return A copy of the absolute path to the file name. This copy must be |
|---|
| 1452 | /// freed when no longer needed. |
|---|
| 1453 | /// |
|---|
| 1454 | gchar * |
|---|
| 1455 | get_absolute_file_name (const gchar *fileName) |
|---|
| 1456 | { |
|---|
| 1457 | gchar *absoluteFileName = NULL; |
|---|
| 1458 | if ( g_path_is_absolute (fileName) ) |
|---|
| 1459 | { |
|---|
| 1460 | absoluteFileName = g_strdup (fileName); |
|---|
| 1461 | } |
|---|
| 1462 | else |
|---|
| 1463 | { |
|---|
| 1464 | gchar *currentDir = g_get_current_dir (); |
|---|
| 1465 | absoluteFileName = g_build_filename (currentDir, fileName, NULL); |
|---|
| 1466 | g_free (currentDir); |
|---|
| 1467 | } |
|---|
| 1468 | |
|---|
| 1469 | return absoluteFileName; |
|---|
| 1470 | } |
|---|
| 1471 | |
|---|
| 1472 | ////////////////////////////////////////////////////////////////////////// |
|---|
| 1473 | // Main function: should we use getopts? (who doesn't?) |
|---|
| 1474 | |
|---|
| 1475 | int |
|---|
| 1476 | main (int argc, |
|---|
| 1477 | char *argv[]) |
|---|
| 1478 | { |
|---|
| 1479 | GtkWidget *window; |
|---|
| 1480 | GdkGLConfig *glconfig; |
|---|
| 1481 | |
|---|
| 1482 | /* Initialize GTK. */ |
|---|
| 1483 | gtk_init (&argc, &argv); |
|---|
| 1484 | |
|---|
| 1485 | /* Initialize GtkGLExt. */ |
|---|
| 1486 | gtk_gl_init (&argc, &argv); |
|---|
| 1487 | |
|---|
| 1488 | /* Configure OpenGL framebuffer. */ |
|---|
| 1489 | glconfig = configure_gl(); |
|---|
| 1490 | |
|---|
| 1491 | if(argc < 2) |
|---|
| 1492 | { |
|---|
| 1493 | perror("usage: pdfcube file_uri [cube_page ...]"); |
|---|
| 1494 | exit(1); |
|---|
| 1495 | } |
|---|
| 1496 | gchar *absoluteFileName = get_absolute_file_name (argv[1]); |
|---|
| 1497 | gchar *filename_uri = g_filename_to_uri (absoluteFileName, NULL, NULL); |
|---|
| 1498 | g_free (absoluteFileName); |
|---|
| 1499 | if ( NULL == filename_uri ) |
|---|
| 1500 | { |
|---|
| 1501 | cerr << "Errore nel nome del file" << endl; |
|---|
| 1502 | } |
|---|
| 1503 | |
|---|
| 1504 | GError* g = NULL; |
|---|
| 1505 | PopplerDocument* document = |
|---|
| 1506 | poppler_document_new_from_file(filename_uri, NULL, &g); |
|---|
| 1507 | |
|---|
| 1508 | if(g && g->code) |
|---|
| 1509 | { |
|---|
| 1510 | perror(g->message); |
|---|
| 1511 | exit(2); |
|---|
| 1512 | } |
|---|
| 1513 | |
|---|
| 1514 | if(document == NULL) |
|---|
| 1515 | { |
|---|
| 1516 | perror("invaild pdf file"); |
|---|
| 1517 | exit(2); |
|---|
| 1518 | } |
|---|
| 1519 | |
|---|
| 1520 | pc = new pdfcube(document); |
|---|
| 1521 | |
|---|
| 1522 | page_transition = new bool[pc->pages()]; |
|---|
| 1523 | |
|---|
| 1524 | for(int ii = 0; ii < pc->pages(); ii++) |
|---|
| 1525 | { |
|---|
| 1526 | page_transition[ii] = false; |
|---|
| 1527 | } |
|---|
| 1528 | |
|---|
| 1529 | for(int ii = 2; ii < argc; ii++) |
|---|
| 1530 | { |
|---|
| 1531 | page_transition[atoi(argv[ii])] = true; |
|---|
| 1532 | } |
|---|
| 1533 | |
|---|
| 1534 | /* Create and show the application window. */ |
|---|
| 1535 | window = create_window(glconfig); |
|---|
| 1536 | |
|---|
| 1537 | if(fullscreen) |
|---|
| 1538 | gtk_window_fullscreen((GtkWindow*)(window)); |
|---|
| 1539 | |
|---|
| 1540 | gtk_widget_show (window); |
|---|
| 1541 | |
|---|
| 1542 | gtk_main (); |
|---|
| 1543 | |
|---|
| 1544 | return 0; |
|---|
| 1545 | } |
|---|
| 1546 | |
|---|
| 1547 | // EOF |
|---|
| 1548 | ////////////////////////////////////////////////////////////////////////// |
|---|