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Diffstat (limited to 'glabels2/src/view-image.c')
| -rw-r--r-- | glabels2/src/view-image.c | 447 |
1 files changed, 447 insertions, 0 deletions
diff --git a/glabels2/src/view-image.c b/glabels2/src/view-image.c new file mode 100644 index 0000000..c1ec594 --- /dev/null +++ b/glabels2/src/view-image.c @@ -0,0 +1,447 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- */ + +/* + * (GLABELS) Label and Business Card Creation program for GNOME + * + * view_image.c: GLabels label image object view + * + * Copyright (C) 2001-2007 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 "view-image.h" + +#include <glib/gi18n.h> +#include <glib/gmem.h> + +#include "color.h" +#include "object-editor.h" +#include "stock.h" + +#include "pixmaps/cursor_image.xbm" +#include "pixmaps/cursor_image_mask.xbm" + +#include "debug.h" + +/*========================================================*/ +/* Private macros and constants. */ +/*========================================================*/ + + +/*========================================================*/ +/* Private types. */ +/*========================================================*/ + +struct _glViewImagePrivate { +}; + +/*========================================================*/ +/* Private globals. */ +/*========================================================*/ + + +/*========================================================*/ +/* Private function prototypes. */ +/*========================================================*/ + +static void gl_view_image_finalize (GObject *object); + +static GtkWidget *construct_properties_editor (glViewObject *view_object); + +static void update_object_from_editor_cb (glObjectEditor *editor, + glLabelObject *object); + +static void update_editor_from_object_cb (glLabelObject *object, + glObjectEditor *editor); + +static void update_editor_from_move_cb (glLabelObject *object, + gdouble dx, + gdouble dy, + glObjectEditor *editor); + +static void update_editor_from_label_cb (glLabel *label, + glObjectEditor *editor); + +static gboolean object_at (glViewObject *view_object, + cairo_t *cr, + gdouble x, + gdouble y); + + + +/*****************************************************************************/ +/* Boilerplate object stuff. */ +/*****************************************************************************/ +G_DEFINE_TYPE (glViewImage, gl_view_image, GL_TYPE_VIEW_OBJECT); + + +static void +gl_view_image_class_init (glViewImageClass *class) +{ + GObjectClass *object_class = G_OBJECT_CLASS (class); + glViewObjectClass *view_object_class = GL_VIEW_OBJECT_CLASS (class); + + gl_debug (DEBUG_VIEW, "START"); + + gl_view_image_parent_class = g_type_class_peek_parent (class); + + object_class->finalize = gl_view_image_finalize; + + view_object_class->construct_editor = construct_properties_editor; + view_object_class->object_at = object_at; + + gl_debug (DEBUG_VIEW, "END"); +} + +static void +gl_view_image_init (glViewImage *view_image) +{ + gl_debug (DEBUG_VIEW, "START"); + + view_image->priv = g_new0 (glViewImagePrivate, 1); + + gl_debug (DEBUG_VIEW, "END"); +} + +static void +gl_view_image_finalize (GObject *object) +{ + glViewImage *view_image = GL_VIEW_IMAGE (object); + + gl_debug (DEBUG_VIEW, "START"); + + g_return_if_fail (object && GL_IS_VIEW_IMAGE (object)); + + g_free (view_image->priv); + + G_OBJECT_CLASS (gl_view_image_parent_class)->finalize (object); + + gl_debug (DEBUG_VIEW, "END"); +} + +/*****************************************************************************/ +/* NEW image object view. */ +/*****************************************************************************/ +glViewObject * +gl_view_image_new (glLabelImage *object, + glView *view) +{ + glViewImage *view_image; + + gl_debug (DEBUG_VIEW, "START"); + + g_return_val_if_fail (object && GL_IS_LABEL_IMAGE (object), NULL); + g_return_val_if_fail (view && GL_IS_VIEW (view), NULL); + + view_image = g_object_new (gl_view_image_get_type(), NULL); + + gl_view_object_set_object (GL_VIEW_OBJECT(view_image), + GL_LABEL_OBJECT(object), + GL_VIEW_OBJECT_HANDLES_BOX); + gl_view_object_set_view (GL_VIEW_OBJECT(view_image), view); + + gl_debug (DEBUG_VIEW, "END"); + + return GL_VIEW_OBJECT (view_image); +} + +/*****************************************************************************/ +/* Create a properties dialog for a image object. */ +/*****************************************************************************/ +static GtkWidget * +construct_properties_editor (glViewObject *view_object) +{ + GtkWidget *editor; + glViewImage *view_image = (glViewImage *)view_object; + glLabelObject *object; + + gl_debug (DEBUG_VIEW, "START"); + + object = gl_view_object_get_object (GL_VIEW_OBJECT(view_image)); + + /* Build editor. */ + editor = gl_object_editor_new (GL_STOCK_IMAGE, _("Image object properties"), + GL_OBJECT_EDITOR_POSITION_PAGE, + GL_OBJECT_EDITOR_SIZE_IMAGE_PAGE, + GL_OBJECT_EDITOR_IMAGE_PAGE, + 0); + + /* Update */ + update_editor_from_label_cb (object->parent, GL_OBJECT_EDITOR(editor)); + update_editor_from_object_cb (object, GL_OBJECT_EDITOR(editor)); + update_editor_from_move_cb (object, 0, 0, GL_OBJECT_EDITOR(editor)); + + /* Connect signals. */ + g_signal_connect (G_OBJECT (editor), "changed", + G_CALLBACK(update_object_from_editor_cb), object); + g_signal_connect (G_OBJECT (object), "changed", + G_CALLBACK (update_editor_from_object_cb), editor); + g_signal_connect (G_OBJECT (object), "moved", + G_CALLBACK (update_editor_from_move_cb), editor); + g_signal_connect (G_OBJECT (object->parent), "size_changed", + G_CALLBACK (update_editor_from_label_cb), editor); + g_signal_connect (G_OBJECT (object->parent), "merge_changed", + G_CALLBACK (update_editor_from_label_cb), editor); + + gl_debug (DEBUG_VIEW, "END"); + + return editor; +} + +/*---------------------------------------------------------------------------*/ +/* PRIVATE. editor "changed" callback. */ +/*---------------------------------------------------------------------------*/ +static void +update_object_from_editor_cb (glObjectEditor *editor, + glLabelObject *object) +{ + gdouble x, y, w, h; + glTextNode *filename; + const GdkPixbuf *pixbuf; + gdouble image_w, image_h; + + gl_debug (DEBUG_VIEW, "START"); + + g_signal_handlers_block_by_func (G_OBJECT(object), + update_editor_from_object_cb, + editor); + g_signal_handlers_block_by_func (G_OBJECT(object), + update_editor_from_move_cb, + editor); + + + gl_object_editor_get_position (editor, &x, &y); + gl_label_object_set_position (object, x, y); + + gl_object_editor_get_size (editor, &w, &h); + gl_label_object_set_size (object, w, h); + + filename = gl_object_editor_get_image (editor); + gl_label_image_set_filename (GL_LABEL_IMAGE(object), filename); + gl_text_node_free (&filename); + + /* Setting filename may have modified the size. */ + gl_label_object_get_size (object, &w, &h); + gl_object_editor_set_size (editor, w, h); + + /* It may also have a new base size. */ + pixbuf = gl_label_image_get_pixbuf (GL_LABEL_IMAGE(object), NULL); + image_w = gdk_pixbuf_get_width (pixbuf); + image_h = gdk_pixbuf_get_height (pixbuf); + gl_object_editor_set_base_size (editor, image_w, image_h); + + g_signal_handlers_unblock_by_func (G_OBJECT(object), + update_editor_from_object_cb, + editor); + g_signal_handlers_unblock_by_func (G_OBJECT(object), + update_editor_from_move_cb, + editor); + + gl_debug (DEBUG_VIEW, "END"); +} + +/*---------------------------------------------------------------------------*/ +/* PRIVATE. label object "changed" callback. */ +/*---------------------------------------------------------------------------*/ +static void +update_editor_from_object_cb (glLabelObject *object, + glObjectEditor *editor) +{ + gdouble w, h; + const GdkPixbuf *pixbuf; + gdouble image_w, image_h; + glTextNode *filename; + glMerge *merge; + + gl_debug (DEBUG_VIEW, "START"); + + gl_label_object_get_size (object, &w, &h); + gl_object_editor_set_size (editor, w, h); + + pixbuf = gl_label_image_get_pixbuf (GL_LABEL_IMAGE(object), NULL); + image_w = gdk_pixbuf_get_width (pixbuf); + image_h = gdk_pixbuf_get_height (pixbuf); + gl_object_editor_set_base_size (editor, image_w, image_h); + + filename = gl_label_image_get_filename (GL_LABEL_IMAGE(object)); + merge = gl_label_get_merge (GL_LABEL(object->parent)); + if ( filename != NULL ) { + gl_object_editor_set_image (editor, (merge != NULL), filename); + } + + gl_debug (DEBUG_VIEW, "END"); +} + +/*---------------------------------------------------------------------------*/ +/* PRIVATE. label object "moved" callback. */ +/*---------------------------------------------------------------------------*/ +static void +update_editor_from_move_cb (glLabelObject *object, + gdouble dx, + gdouble dy, + glObjectEditor *editor) +{ + gdouble x, y; + + gl_debug (DEBUG_VIEW, "START"); + + gl_label_object_get_position (object, &x, &y); + gl_object_editor_set_position (editor, x, y); + + gl_debug (DEBUG_VIEW, "END"); +} + +/*---------------------------------------------------------------------------*/ +/* PRIVATE. label "changed" callback. */ +/*---------------------------------------------------------------------------*/ +static void +update_editor_from_label_cb (glLabel *label, + glObjectEditor *editor) +{ + gdouble label_width, label_height; + glMerge *merge; + + gl_debug (DEBUG_VIEW, "START"); + + gl_label_get_size (label, &label_width, &label_height); + gl_object_editor_set_max_position (GL_OBJECT_EDITOR (editor), + label_width, label_height); + gl_object_editor_set_max_size (GL_OBJECT_EDITOR (editor), + label_width, label_height); + + merge = gl_label_get_merge (label); + gl_object_editor_set_key_names (editor, merge); + + gl_debug (DEBUG_VIEW, "END"); +} + +/*****************************************************************************/ +/* Is object at (x,y)? */ +/*****************************************************************************/ +static gboolean +object_at (glViewObject *view_object, + cairo_t *cr, + gdouble x, + gdouble y) +{ + glLabelObject *object; + gdouble w, h; + + object = gl_view_object_get_object (view_object); + + gl_label_object_get_size (object, &w, &h); + + cairo_rectangle (cr, 0.0, 0.0, w, h); + + if (cairo_in_fill (cr, x, y)) + { + return TRUE; + } + + return FALSE; +} + + +/*****************************************************************************/ +/* Return apropos cursor for create object mode. */ +/*****************************************************************************/ +GdkCursor * +gl_view_image_get_create_cursor (void) +{ + GdkCursor *cursor = NULL; + GdkPixmap *pixmap_data, *pixmap_mask; + GdkColor fg = { 0, 0, 0, 0 }; + GdkColor bg = { 0, 65535, 65535, 65535 }; + + gl_debug (DEBUG_VIEW, "START"); + + pixmap_data = gdk_bitmap_create_from_data (NULL, + (gchar *)cursor_image_bits, + cursor_image_width, + cursor_image_height); + pixmap_mask = gdk_bitmap_create_from_data (NULL, + (gchar *)cursor_image_mask_bits, + cursor_image_mask_width, + cursor_image_mask_height); + cursor = gdk_cursor_new_from_pixmap (pixmap_data, pixmap_mask, &fg, + &bg, cursor_image_x_hot, + cursor_image_y_hot); + + gl_debug (DEBUG_VIEW, "END"); + + return cursor; +} + +/*****************************************************************************/ +/* Object creation handler: button press event. */ +/*****************************************************************************/ +void +gl_view_image_create_button_press_event (glView *view, + gdouble x, + gdouble y) +{ + GObject *object; + + gl_view_unselect_all (view); + + object = gl_label_image_new (view->label); + gl_label_object_set_position (GL_LABEL_OBJECT(object), x, y); + gl_label_object_set_size (GL_LABEL_OBJECT(object), 0.0, 0.0); + + view->create_object = GL_LABEL_OBJECT (object); + view->create_x0 = x; + view->create_y0 = y; +} + +/*****************************************************************************/ +/* Object creation handler: motion event. */ +/*****************************************************************************/ +void +gl_view_image_create_motion_event (glView *view, + gdouble x, + gdouble y) +{ + gdouble w, h; + + gl_label_object_set_position (GL_LABEL_OBJECT(view->create_object), + MIN (x, view->create_x0), MIN (y, view->create_y0)); + w = MAX (x, view->create_x0) - MIN (x, view->create_x0); + h = MAX (y, view->create_y0) - MIN (y, view->create_y0); + gl_label_object_set_size (GL_LABEL_OBJECT(view->create_object), w, h); +} + +/*****************************************************************************/ +/* Object creation handler: button relesase event. */ +/*****************************************************************************/ +void +gl_view_image_create_button_release_event (glView *view, + gdouble x, + gdouble y) +{ + gdouble w, h; + + if ((view->create_x0 == x) && (view->create_y0 == y)) { + x = view->create_x0 + 36.0; + y = view->create_y0 + 36.0; + } + gl_label_object_set_position (GL_LABEL_OBJECT(view->create_object), + MIN (x, view->create_x0), MIN (y, view->create_y0)); + w = MAX (x, view->create_x0) - MIN (x, view->create_x0); + h = MAX (y, view->create_y0) - MIN (y, view->create_y0); + gl_label_object_set_size (GL_LABEL_OBJECT(view->create_object), w, h); +} + |