diff options
Diffstat (limited to 'glabels1/src/mini_preview.c')
| -rw-r--r-- | glabels1/src/mini_preview.c | 498 |
1 files changed, 0 insertions, 498 deletions
diff --git a/glabels1/src/mini_preview.c b/glabels1/src/mini_preview.c deleted file mode 100644 index 21e61fa..0000000 --- a/glabels1/src/mini_preview.c +++ /dev/null @@ -1,498 +0,0 @@ -/* - * (GLABELS) Label and Business Card Creation program for GNOME - * - * mini_preview.c: mini preview widget module - * - * Copyright (C) 2001 Jim Evins <evins@snaught.com>. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include <config.h> - -#include "mini_preview.h" - -#include "debug.h" - -#define MINI_PREVIEW_MAX_PIXELS 175 - -/*===========================================*/ -/* Private types */ -/*===========================================*/ - -enum { - CLICKED, - PRESSED, - LAST_SIGNAL -}; - - -/*===========================================*/ -/* Private globals */ -/*===========================================*/ - -static GtkContainerClass *parent_class; - -static gint mini_preview_signals[LAST_SIGNAL] = { 0 }; - -/*===========================================*/ -/* Local function prototypes */ -/*===========================================*/ - -static void gl_mini_preview_class_init (glMiniPreviewClass * class); -static void gl_mini_preview_init (glMiniPreview * preview); -static void gl_mini_preview_destroy (GtkObject * object); - -static void gl_mini_preview_construct (glMiniPreview * preview, - gint height, gint width); - -static GList *mini_outline_list_new (GnomeCanvas *canvas, - glTemplate *template); -static void mini_outline_list_free (GList ** list); - -static gint canvas_event_cb (GnomeCanvas * canvas, GdkEvent * event, - gpointer data); - -/****************************************************************************/ -/* Boilerplate Object stuff. */ -/****************************************************************************/ -guint -gl_mini_preview_get_type (void) -{ - static guint mini_preview_type = 0; - - if (!mini_preview_type) { - GtkTypeInfo mini_preview_info = { - "glMiniPreview", - sizeof (glMiniPreview), - sizeof (glMiniPreviewClass), - (GtkClassInitFunc) gl_mini_preview_class_init, - (GtkObjectInitFunc) gl_mini_preview_init, - (GtkArgSetFunc) NULL, - (GtkArgGetFunc) NULL, - }; - - mini_preview_type = gtk_type_unique (gtk_hbox_get_type (), - &mini_preview_info); - } - - return mini_preview_type; -} - -static void -gl_mini_preview_class_init (glMiniPreviewClass * class) -{ - GtkObjectClass *object_class; - GtkWidgetClass *widget_class; - - object_class = (GtkObjectClass *) class; - widget_class = (GtkWidgetClass *) class; - - parent_class = gtk_type_class (gtk_hbox_get_type ()); - - object_class->destroy = gl_mini_preview_destroy; - - mini_preview_signals[CLICKED] = - gtk_signal_new ("clicked", GTK_RUN_LAST, object_class->type, - GTK_SIGNAL_OFFSET (glMiniPreviewClass, clicked), - gtk_marshal_NONE__INT, - GTK_TYPE_NONE, 1, GTK_TYPE_INT); - - mini_preview_signals[PRESSED] = - gtk_signal_new ("pressed", GTK_RUN_LAST, object_class->type, - GTK_SIGNAL_OFFSET (glMiniPreviewClass, pressed), - gtk_marshal_NONE__INT_INT, - GTK_TYPE_NONE, 2, GTK_TYPE_INT, GTK_TYPE_INT); - - gtk_object_class_add_signals (object_class, mini_preview_signals, - LAST_SIGNAL); - - class->clicked = NULL; - class->pressed = NULL; -} - -static void -gl_mini_preview_init (glMiniPreview * preview) -{ - preview->canvas = NULL; - preview->label_items = NULL; -} - -static void -gl_mini_preview_destroy (GtkObject * object) -{ - glMiniPreview *preview; - glMiniPreviewClass *class; - - g_return_if_fail (object != NULL); - g_return_if_fail (GL_IS_MINI_PREVIEW (object)); - - preview = GL_MINI_PREVIEW (object); - class = GL_MINI_PREVIEW_CLASS (GTK_OBJECT (preview)->klass); - - GTK_OBJECT_CLASS (parent_class)->destroy (object); -} - -GtkWidget * -gl_mini_preview_new (gint height, - gint width) -{ - glMiniPreview *preview; - - preview = gtk_type_new (gl_mini_preview_get_type ()); - - gl_mini_preview_construct (preview, height, width); - - return GTK_WIDGET (preview); -} - -/*--------------------------------------------------------------------------*/ -/* Construct composite widget. */ -/*--------------------------------------------------------------------------*/ -static void -gl_mini_preview_construct (glMiniPreview * preview, - gint height, - gint width) -{ - GtkWidget *whbox; - GnomeCanvasGroup *group; - - whbox = GTK_WIDGET (preview); - - preview->height = height; - preview->width = width; - - /* create canvas */ - gtk_widget_push_visual (gdk_rgb_get_visual ()); - gtk_widget_push_colormap (gdk_rgb_get_cmap ()); - preview->canvas = gnome_canvas_new_aa (); - gtk_widget_pop_colormap (); - gtk_widget_pop_visual (); - gtk_box_pack_start (GTK_BOX (whbox), preview->canvas, TRUE, TRUE, 0); - gtk_widget_set_usize (preview->canvas, width, height); - gnome_canvas_set_scroll_region (GNOME_CANVAS (preview->canvas), - 0.0, 0.0, width, height); - - /* draw an initial paper outline */ - gnome_canvas_set_pixels_per_unit (GNOME_CANVAS (preview->canvas), 1.0); - group = gnome_canvas_root (GNOME_CANVAS (preview->canvas)); - preview->paper_item = - gnome_canvas_item_new (group, - gnome_canvas_rect_get_type (), - "x1", 0.0, - "y1", 0.0, - "x2", (gdouble)width, - "y2", (gdouble)height, - "width_pixels", 1, - "outline_color", "black", - "fill_color", "white", NULL); - - /* create empty list of label canvas items */ - preview->label_items = NULL; - preview->labels_per_sheet = 0; - - /* Event handler */ - gtk_signal_connect (GTK_OBJECT (preview->canvas), "event", - GTK_SIGNAL_FUNC (canvas_event_cb), preview); - -} - -/****************************************************************************/ -/* Set label for mini-preview to determine geometry. */ -/****************************************************************************/ -void gl_mini_preview_set_label (glMiniPreview * preview, - gchar *name) -{ - glTemplate *template; - const GnomePaper *paper = NULL; - gdouble paper_width, paper_height; - gdouble canvas_scale; - gdouble w, h; - - /* Fetch template */ - template = gl_template_from_name (name); - - /* get paper size and set scale */ - paper = gnome_paper_with_name (template->page_size); - paper_width = gnome_paper_pswidth (paper); - paper_height = gnome_paper_psheight (paper); - w = preview->width - 4; - h = preview->height - 4; - if ( (w/paper_width) > (h/paper_height) ) { - canvas_scale = h / paper_height; - } else { - canvas_scale = w / paper_width; - } - gnome_canvas_set_pixels_per_unit (GNOME_CANVAS (preview->canvas), - canvas_scale); - gnome_canvas_set_scroll_region (GNOME_CANVAS (preview->canvas), - 0.0, 0.0, paper_width, paper_height); - - /* update paper outline */ - gnome_canvas_item_set (preview->paper_item, - "x1", 0.0, - "y1", 0.0, - "x2", paper_width, - "y2", paper_height, - NULL); - - /* update label items */ - mini_outline_list_free (&preview->label_items); - preview->label_items = - mini_outline_list_new (GNOME_CANVAS(preview->canvas), - template); - - gl_template_free( &template ); - -} - -/*--------------------------------------------------------------------------*/ -/* PRIVATE. Draw label outlines and return canvas item list. */ -/*--------------------------------------------------------------------------*/ -static GList * -mini_outline_list_new (GnomeCanvas * canvas, - glTemplate * template) -{ - GnomeCanvasGroup *group = NULL; - GnomeCanvasItem *item = NULL; - GList *list = NULL; - gint i, ix, iy; - gdouble x1, y1, x2, y2, y_temp; - const GnomePaper *paper = NULL; - gdouble paper_height; - - /* get paper height */ - paper = gnome_paper_with_name (template->page_size); - paper_height = gnome_paper_psheight (paper); - - group = gnome_canvas_root (canvas); - - /* draw mini label outlines */ - i = 1; - for (iy = (template->ny - 1); iy >= 0; iy--) { - for (ix = 0; ix < template->nx; ix++, i++) { - - x1 = ix * (template->dx) + template->x0; - y1 = iy * (template->dy) + template->y0; - x2 = x1 + template->label_width; - y2 = y1 + template->label_height; - - /* transform origin from lower left to upper left */ - /* and swap y's so that (y1 < y2) */ - y_temp = y2; - y2 = paper_height - y1; - y1 = paper_height - y_temp; - - switch (template->style) { - case GL_TEMPLATE_STYLE_RECT: - item = gnome_canvas_item_new (group, - gnome_canvas_rect_get_type(), - "x1", x1, - "y1", y1, - "x2", x2, - "y2", y2, - "width_pixels", 1, - "outline_color", "black", - "fill_color", "white", - NULL); - break; - case GL_TEMPLATE_STYLE_ROUND: - case GL_TEMPLATE_STYLE_CD: - item = gnome_canvas_item_new (group, - gnome_canvas_ellipse_get_type(), - "x1", x1, - "y1", y1, - "x2", x2, - "y2", y2, - "width_pixels", 1, - "outline_color", "black", - "fill_color", "white", - NULL); - break; - default: - WARN ("Unknown label style"); - return list; - break; - } - gtk_object_set_data (GTK_OBJECT (item), "i", - GINT_TO_POINTER (i)); - - list = g_list_append (list, item); - } - } - - return list; -} - -/*--------------------------------------------------------------------------*/ -/* PRIVATE. Draw label outlines and return canvas item list. */ -/*--------------------------------------------------------------------------*/ -static void -mini_outline_list_free (GList ** list) -{ - GnomeCanvasItem *item; - GList *p; - - if ( *list != NULL ) { - - for (p = *list; p != NULL; p = p->next) { - item = GNOME_CANVAS_ITEM (p->data); - gtk_object_destroy (GTK_OBJECT (item)); - } - - g_list_free (*list); - *list = NULL; - - } - -} - -/*--------------------------------------------------------------------------*/ -/* PRIVATE. Canvas event handler, select first and last items. */ -/*--------------------------------------------------------------------------*/ -static gint -canvas_event_cb (GnomeCanvas * canvas, - GdkEvent * event, - gpointer data) -{ - glMiniPreview *preview = GL_MINI_PREVIEW (data); - GnomeCanvasItem *item; - static gboolean dragging = FALSE; - static gint prev_i = 0, first, last; - gint i; - gdouble x, y; - - switch (event->type) { - - case GDK_BUTTON_PRESS: - gnome_canvas_window_to_world (canvas, - event->button.x, event->button.y, - &x, &y); - switch (event->button.button) { - case 1: - /* Get item at cursor and make sure - it's a label object ("i" is valid) */ - item = gnome_canvas_get_item_at (GNOME_CANVAS (canvas), - x, y); - if (item == NULL) - break; - i = GPOINTER_TO_INT (gtk_object_get_data - (GTK_OBJECT (item), "i")); - if (i == 0) - break; - /* Go into dragging mode while remains pressed. */ - dragging = TRUE; - gdk_pointer_grab (GTK_WIDGET (canvas)->window, - FALSE, - GDK_POINTER_MOTION_MASK | - GDK_BUTTON_RELEASE_MASK | - GDK_BUTTON_PRESS_MASK, NULL, NULL, - event->button.time); - gtk_signal_emit (GTK_OBJECT(preview), - mini_preview_signals[CLICKED], - i); - first = i; - last = i; - gtk_signal_emit (GTK_OBJECT(preview), - mini_preview_signals[PRESSED], - first, last); - prev_i = i; - break; - - default: - break; - } - break; - - case GDK_BUTTON_RELEASE: - gnome_canvas_window_to_world (canvas, - event->button.x, event->button.y, - &x, &y); - switch (event->button.button) { - case 1: - /* Exit dragging mode */ - dragging = FALSE; - gdk_pointer_ungrab (event->button.time); - break; - - default: - break; - } - break; - - case GDK_MOTION_NOTIFY: - gnome_canvas_window_to_world (canvas, - event->motion.x, event->motion.y, - &x, &y); - if (dragging && (event->motion.state & GDK_BUTTON1_MASK)) { - /* Get item at cursor and - make sure it's a label object ("i" is valid) */ - item = gnome_canvas_get_item_at (GNOME_CANVAS (canvas), - x, y); - if (item == NULL) - break; - i = GPOINTER_TO_INT (gtk_object_get_data - (GTK_OBJECT (item), "i")); - if (i == 0) - break; - if (prev_i != i) { - /* Entered into a new item */ - last = i; - gtk_signal_emit (GTK_OBJECT(preview), - mini_preview_signals[PRESSED], - MIN (first, last), - MAX (first, last)); - prev_i = i; - } - } - break; - - default: - break; - } - - return FALSE; - -} - -/****************************************************************************/ -/* Highlight given label outlines. */ -/****************************************************************************/ -void -gl_mini_preview_highlight_range (glMiniPreview * preview, - gint first_label, - gint last_label) -{ - GnomeCanvasItem *item = NULL; - GList *p = NULL; - gint i; - - for (p = preview->label_items, i = 1; p != NULL; i++, p = p->next) { - - item = GNOME_CANVAS_ITEM (p->data); - - if ((i >= first_label) && (i <= last_label)) { - gnome_canvas_item_set (item, - "fill_color", "light blue", - NULL); - } else { - gnome_canvas_item_set (item, - "fill_color", "white", NULL); - } - - } - -} - |