Attachment 89309 Details for Bug 70981 – glib-demo: Add simple demo to add line annotations

[patch] glib-demo: Add simple demo to add line annotations

0003-glib-demo:-Add-simple-demo-to-add-line-annotations.patch (text/plain), 11.92 KB, created by Germán Poo-Caamaño on 2013-11-16 09:45:24 UTC

(hide)

Description:

Filename:

MIME Type:

Creator: Germán Poo-Caamaño

Created: 2013-11-16 09:45:24 UTC

Size: 11.92 KB

patch

obsolete

>From f5c33374de28b3e39fdb87042e83ce77ff93e96f Mon Sep 17 00:00:00 2001
>From: =?UTF-8?q?Germ=C3=A1n=20Poo-Caama=C3=B1o?= <gpoo@gnome.org>
>Date: Mon, 28 Oct 2013 22:38:21 -0700
>Subject: [PATCH] glib-demo: Add simple demo to add line annotations
>
>Set the color before adding an annotation instead of assigning
>one by default and allowing a later modification.
>---
> glib/demo/annots.c |  212 +++++++++++++++++++++++++++++++++++++++++++++++++---
> 1 file changed, 202 insertions(+), 10 deletions(-)
>
>diff --git a/glib/demo/annots.c b/glib/demo/annots.c
>index 63e0136..4aadee2 100644
>--- a/glib/demo/annots.c
>+++ b/glib/demo/annots.c
>@@ -52,6 +52,7 @@ typedef enum {
> typedef struct {
>     PopplerDocument *doc;
>     PopplerPage     *page;
>+    PopplerAnnot    *active_annot;
> 
>     GtkWidget       *tree_view;
>     GtkListStore    *model;
>@@ -67,10 +68,12 @@ typedef struct {
>     ModeType         mode;
> 
>     cairo_surface_t *surface;
>+    PopplerColor    *annot_color;
> 
>     GdkPoint         start;
>     GdkPoint         stop;
>     GdkCursorType    cursor;
>+    guint            annotations_idle;
> } PgdAnnotsDemo;
> 
> static void pgd_annots_viewer_queue_redraw (PgdAnnotsDemo *demo);
>@@ -81,6 +84,11 @@ pgd_annots_free (PgdAnnotsDemo *demo)
>     if (!demo)
>         return;
> 
>+	if (demo->annotations_idle > 0) {
>+		g_source_remove (demo->annotations_idle);
>+		demo->annotations_idle = 0;
>+	}
>+
>     if (demo->doc) {
>         g_object_unref (demo->doc);
>         demo->doc = NULL;
>@@ -96,6 +104,11 @@ pgd_annots_free (PgdAnnotsDemo *demo)
>         demo->model = NULL;
>     }
> 
>+    if (demo->annot_color) {
>+        g_free (demo->annot_color);
>+        demo->annot_color = NULL;
>+    }
>+
>     g_free (demo);
> }
> 
>@@ -353,6 +366,10 @@ pgd_annots_start_add_annot (GtkWidget     *button,
>             demo->mode = MODE_ADD;
>             pgd_annots_update_cursor (demo, GDK_TCROSS);
>             break;
>+        case POPPLER_ANNOT_LINE:
>+            demo->mode = MODE_DRAWING;
>+            pgd_annots_update_cursor (demo, GDK_TCROSS);
>+            break;
>         default:
>             g_printerr ("Annotation not implemented: %d\n", demo->annot_type);
>             return;
>@@ -441,6 +458,45 @@ pgd_annot_view_set_annot_text (GtkWidget        *table,
> }
> 
> static void
>+pgd_annot_color_changed (GtkButton     *button,
>+                         GParamSpec    *pspec,
>+                         PgdAnnotsDemo *demo)
>+{
>+    GdkRGBA      color;
>+
>+#if GTK_CHECK_VERSION(3,4,0)
>+    gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (button), &color);
>+#else
>+    gtk_color_button_get_rgba (GTK_COLOR_BUTTON (button), &color);
>+#endif
>+    demo->annot_color->red = CLAMP ((guint) (color.red * 65535), 0, 65535);
>+    demo->annot_color->green = CLAMP ((guint) (color.green * 65535), 0, 65535);
>+    demo->annot_color->blue = CLAMP ((guint) (color.blue * 65535), 0, 65535);
>+}
>+
>+static void
>+pgd_annot_view_set_annot_line (PgdAnnotsDemo *demo,
>+                               GtkWidget     *table,
>+                               PopplerAnnot  *annot,
>+                               gint          *row)
>+{
>+    PopplerColor *poppler_color;
>+    GdkPixbuf    *pixbuf;
>+    GtkWidget    *image;
>+
>+    if ((poppler_color = poppler_annot_get_color (annot))) {
>+        demo->active_annot = annot;
>+
>+        pixbuf = pgd_pixbuf_new_for_color (poppler_color);
>+        image = gtk_image_new ();
>+        gtk_image_set_from_pixbuf (GTK_IMAGE (image), pixbuf);
>+        g_object_unref (pixbuf);
>+
>+        pgd_table_add_property_with_custom_widget (GTK_GRID (table), "<b>Color:</b>", image, row);
>+    }
>+}
>+
>+static void
> pgd_annot_view_set_annot_free_text (GtkWidget            *table,
>                                     PopplerAnnotFreeText *annot,
>                                     gint                 *row)
>@@ -613,6 +669,9 @@ pgd_annot_view_set_annot (PgdAnnotsDemo *demo,
>         case POPPLER_ANNOT_TEXT:
>           pgd_annot_view_set_annot_text (table, POPPLER_ANNOT_TEXT (annot), &row);
>           break;
>+        case POPPLER_ANNOT_LINE:
>+          pgd_annot_view_set_annot_line (demo, table, annot, &row);
>+          break;
>         case POPPLER_ANNOT_FREE_TEXT:
>           pgd_annot_view_set_annot_free_text (table, POPPLER_ANNOT_FREE_TEXT (annot), &row);
>           break;
>@@ -633,7 +692,7 @@ pgd_annot_view_set_annot (PgdAnnotsDemo *demo,
>     gtk_widget_show (table);
> }
> 
>-static void
>+static GtkTreeIter
> pgd_annots_add_annot_to_model (PgdAnnotsDemo *demo,
>                                PopplerAnnot *annot,
>                                PopplerRectangle area)
>@@ -672,6 +731,8 @@ pgd_annots_add_annot_to_model (PgdAnnotsDemo *demo,
>     g_free (y1);
>     g_free (x2);
>     g_free (y2);
>+
>+    return iter;
> }
> 
> static void
>@@ -815,28 +876,44 @@ static void
> pgd_annots_add_annotation (PgdAnnotsDemo *demo)
> {
>     PopplerRectangle  rect;
>+    PopplerPoint      start, end;
>     PopplerAnnot     *annot;
>     gdouble           width, height;
>+    GtkTreeIter       iter;
>+    GtkTreePath      *path;
> 
>     poppler_page_get_size (demo->page, &width, &height);
> 
>-    rect.x1 = demo->start.x;
>-    rect.y1 = height - demo->start.y;
>-    rect.x2 = demo->stop.x;
>-    rect.y2 = height - demo->stop.y;
>+    rect.x1 = start.x = demo->start.x;
>+    rect.y1 = start.y = height - demo->start.y;
>+    rect.x2 = end.x = demo->stop.x;
>+    rect.y2 = end.y = height - demo->stop.y;
>+
>     switch (demo->annot_type) {
>         case POPPLER_ANNOT_TEXT:
>             annot = poppler_annot_text_new (demo->doc, &rect);
>-            poppler_page_add_annot (demo->page, annot);
>-            pgd_annots_add_annot_to_model (demo, annot, rect);
>+            break;
>+        case POPPLER_ANNOT_LINE:
>+            annot = poppler_annot_line_new (demo->doc, &rect);
>+            poppler_annot_line_set_vertices (POPPLER_ANNOT_LINE (annot),
>+                                             start, end);
>             break;
>         default:
>             g_printerr ("Annotation not implemented: %d\n", demo->annot_type);
>             return;
>     }
> 
>+    demo->active_annot = annot;
>+
>+    poppler_annot_set_color (annot, demo->annot_color);
>+    poppler_page_add_annot (demo->page, annot);
>+    iter = pgd_annots_add_annot_to_model (demo, annot, rect);
>+
>     pgd_annots_viewer_queue_redraw (demo);
>-    demo->mode = MODE_NORMAL;
>+
>+    path = gtk_tree_model_get_path (GTK_TREE_MODEL (demo->model), &iter);
>+    gtk_tree_view_set_cursor (GTK_TREE_VIEW (demo->tree_view), path, NULL, FALSE);
>+    gtk_tree_path_free (path);
> }
> 
> /* Render area */
>@@ -903,6 +980,8 @@ pgd_annots_viewer_redraw (PgdAnnotsDemo *demo)
> 
>     gtk_widget_queue_draw (demo->darea);
> 
>+    demo->annotations_idle = 0;
>+
>     return FALSE;
> }
> 
>@@ -938,11 +1017,90 @@ pgd_annots_drawing_area_button_press (GtkWidget      *area,
>     demo->start.y = event->y;
>     demo->stop = demo->start;
> 
>-    if (demo->mode == MODE_ADD) {
>-        pgd_annots_add_annotation (demo);
>+    switch (demo->mode) {
>+        case MODE_ADD:
>+            pgd_annots_add_annotation (demo);
>+            pgd_annots_update_cursor (demo, GDK_LAST_CURSOR);
>+            demo->mode = MODE_NORMAL;
>+            break;
>+        case MODE_DRAWING:
>+            pgd_annots_add_annotation (demo);
>+        default:
>+            break;
>+    }
>+
>+    return TRUE;
>+}
>+
>+static gboolean
>+pgd_annots_drawing_area_motion_notify (GtkWidget      *area,
>+                                       GdkEventMotion *event,
>+                                       PgdAnnotsDemo  *demo)
>+{
>+    if (!demo->page || demo->mode == MODE_NORMAL || demo->mode == MODE_ADD)
>+        return FALSE;
>+
>+    if (demo->start.x != -1) {
>+        demo->stop.x = event->x;
>+        demo->stop.y = event->y;
>+
>+        if (demo->mode == MODE_DRAWING) {
>+            PopplerRectangle rect;
>+            PopplerPoint start, end;
>+            gdouble width, height;
>+
>+            poppler_page_get_size (demo->page, &width, &height);
>+
>+            /* Keep the drawing within the page */
>+            demo->stop.x = MAX (demo->stop.x, 0);
>+            demo->stop.y = MAX (demo->stop.y, 0);
>+            demo->stop.x = MIN (demo->stop.x, width);
>+            demo->stop.y = MIN (demo->stop.y, height);
>+
>+            rect.x1 = start.x = demo->start.x;
>+            rect.y1 = start.y = height - demo->start.y;
>+            rect.x2 = end.x = demo->stop.x;
>+            rect.y2 = end.y = height - demo->stop.y;
>+
>+            poppler_annot_set_rectangle (demo->active_annot, rect);
>+            poppler_annot_line_set_vertices (POPPLER_ANNOT_LINE (demo->active_annot),
>+                                             start, end);
>+
>+            pgd_annot_view_set_annot (demo, demo->active_annot);
>+            if (demo->annotations_idle == 0) {
>+                demo->annotations_idle =
>+                         g_idle_add ((GSourceFunc)pgd_annots_viewer_redraw,
>+                                     demo);
>+            }
>+        }
>+    }
>+
>+    return TRUE;
>+}
>+
>+static gboolean
>+pgd_annots_drawing_area_button_release (GtkWidget      *area,
>+                                        GdkEventButton *event,
>+                                        PgdAnnotsDemo  *demo)
>+{
>+    if (!demo->page || demo->mode == MODE_NORMAL || demo->mode == MODE_ADD)
>+        return FALSE;
>+    
>+    if (event->button != 1)
>+        return FALSE;
>+    
>+    if (demo->start.x != -1) {
>+        demo->mode = MODE_NORMAL;
>         pgd_annots_update_cursor (demo, GDK_LAST_CURSOR);
>     }
> 
>+    demo->start.x = -1;
>+
>+	if (demo->annotations_idle > 0) {
>+		g_source_remove (demo->annotations_idle);
>+		demo->annotations_idle = 0;
>+	}
>+
>     return TRUE;
> }
> 
>@@ -962,6 +1120,7 @@ pgd_annots_create_widget (PopplerDocument *document)
>     GtkTreeViewColumn *column;
>     GtkListStore     *model;
>     GtkTreeIter       iter;
>+    GdkRGBA           rgba;
>     gchar            *str;
>     gint              n_pages;
> 
>@@ -1019,6 +1178,12 @@ pgd_annots_create_widget (PopplerDocument *document)
>                         SELECTED_TYPE_COLUMN, POPPLER_ANNOT_TEXT,
>                         SELECTED_LABEL_COLUMN, "Text",
>                         -1);
>+
>+    gtk_list_store_append (model, &iter);
>+    gtk_list_store_set (model, &iter,
>+                        SELECTED_TYPE_COLUMN, POPPLER_ANNOT_LINE,
>+                        SELECTED_LABEL_COLUMN, "Line",
>+                        -1);
>     demo->type_selector = gtk_combo_box_new_with_model (GTK_TREE_MODEL (model));
>     g_object_unref (model);
> 
>@@ -1031,6 +1196,27 @@ pgd_annots_create_widget (PopplerDocument *document)
>     gtk_box_pack_end (GTK_BOX (hbox), demo->type_selector, FALSE, FALSE, 0);
>     gtk_widget_show (demo->type_selector);
> 
>+    demo->annot_color = poppler_color_new ();
>+    demo->annot_color->red = 65535;
>+    demo->annot_color->green = 0;
>+    demo->annot_color->blue = 0;
>+    rgba.red = demo->annot_color->red;
>+    rgba.green = demo->annot_color->green;
>+    rgba.blue = demo->annot_color->blue;
>+    rgba.alpha = 1.0;
>+
>+    button = gtk_color_button_new ();
>+#if GTK_CHECK_VERSION(3,4,0)
>+    gtk_color_chooser_set_rgba (GTK_COLOR_CHOOSER (button), &rgba);
>+#else
>+    gtk_color_button_set_rgba (GTK_COLOR_BUTTON (button), &rgba);
>+#endif
>+    g_signal_connect (button, "notify::color",
>+                      G_CALLBACK (pgd_annot_color_changed),
>+                      (gpointer)demo);
>+    gtk_box_pack_end (GTK_BOX (hbox), button, FALSE, TRUE, 0);
>+    gtk_widget_show (button);
>+
>     gtk_widget_show (hbox);
> 
>     demo->timer_label = gtk_label_new (NULL);
>@@ -1154,6 +1340,12 @@ pgd_annots_create_widget (PopplerDocument *document)
>     g_signal_connect (demo->darea, "button_press_event",
>                       G_CALLBACK (pgd_annots_drawing_area_button_press),
>                       (gpointer)demo);
>+    g_signal_connect (demo->darea, "motion_notify_event",
>+                      G_CALLBACK (pgd_annots_drawing_area_motion_notify),
>+                      (gpointer)demo);
>+    g_signal_connect (demo->darea, "button_release_event",
>+                      G_CALLBACK (pgd_annots_drawing_area_button_release),
>+                      (gpointer)demo);
> 
>     swindow = gtk_scrolled_window_new (NULL, NULL);
> #if GTK_CHECK_VERSION(3, 7, 8)
>-- 
>1.7.9.5
>

Actions: View | Splinter Review

Attachments on bug 70981: 88267 | 88268 | 89307 | 89308 | 89309 | 89384 | 89385 | 89388 | 89391

Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.