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Merge branch 'node-editor-scale' into 'main'

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node-editor: Add a zoom button

See merge request GNOME/gtk!4804
This commit is contained in:
Matthias Clasen 2022-06-07 18:57:53 +00:00
commit 5089fa3ecc
2 changed files with 40 additions and 0 deletions
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23
demos/node-editor/node-editor-window.c
View File

@ -57,6 +57,7 @@ struct _NodeEditorWindow
GtkWidget *testcase_cairo_checkbutton;
GtkWidget *testcase_name_entry;
GtkWidget *testcase_save_button;
GtkWidget *scale_scale;
GtkWidget *renderer_listbox;
GListStore *renderers;
@ -171,6 +172,7 @@ text_changed (GtkTextBuffer *buffer,
GBytes *bytes;
GtkTextIter iter;
GtkTextIter start, end;
float scale;
g_array_remove_range (self->errors, 0, self->errors->len);
text = get_current_text (self->text_buffer);
@ -181,6 +183,17 @@ text_changed (GtkTextBuffer *buffer,
/* If this is too slow, go fix the parser performance */
self->node = gsk_render_node_deserialize (bytes, deserialize_error_func, self);
scale = gtk_scale_button_get_value (GTK_SCALE_BUTTON (self->scale_scale));
if (self->node && scale != 1.0)
{
GskRenderNode *node;
node = gsk_transform_node_new (self->node, gsk_transform_scale (NULL, scale, scale));
gsk_render_node_unref (self->node);
self->node = node;
}
g_bytes_unref (bytes);
if (self->node)
{
@ -277,6 +290,14 @@ text_changed (GtkTextBuffer *buffer,
&start, &end);
}
static void
scale_changed (GObject *object,
GParamSpec *pspec,
NodeEditorWindow *self)
{
text_changed (self->text_buffer, self);
}
static gboolean
text_view_query_tooltip_cb (GtkWidget *widget,
int x,
@ -962,6 +983,7 @@ node_editor_window_class_init (NodeEditorWindowClass *class)
gtk_widget_class_bind_template_child (widget_class, NodeEditorWindow, testcase_cairo_checkbutton);
gtk_widget_class_bind_template_child (widget_class, NodeEditorWindow, testcase_name_entry);
gtk_widget_class_bind_template_child (widget_class, NodeEditorWindow, testcase_save_button);
gtk_widget_class_bind_template_child (widget_class, NodeEditorWindow, scale_scale);
gtk_widget_class_bind_template_callback (widget_class, text_view_query_tooltip_cb);
gtk_widget_class_bind_template_callback (widget_class, open_cb);
@ -1068,6 +1090,7 @@ node_editor_window_init (NodeEditorWindow *self)
self->text_buffer = gtk_text_buffer_new (self->tag_table);
g_signal_connect (self->text_buffer, "changed", G_CALLBACK (text_changed), self);
g_signal_connect (self->scale_scale, "notify::value", G_CALLBACK (scale_changed), self);
gtk_text_view_set_buffer (GTK_TEXT_VIEW (self->text_view), self->text_buffer);
/* Default */

17
demos/node-editor/node-editor-window.ui
View File

@ -157,6 +157,23 @@
<signal name="notify::active" handler="dark_mode_cb" swapped="0"/>
</object>
</child>
<child type="end">
<object class="GtkScaleButton" id="scale_scale">
<property name="focus-on-click">0</property>
<property name="valign">center</property>
<property name="adjustment">
<object class="GtkAdjustment">
<property name="lower">1</property>
<property name="value">1</property>
<property name="upper">10</property>
<property name="step-increment">0.1</property>
<property name="page-increment">0.5</property>
</object>
</property>
<property name="icons">zoom-in-symbolic</property>
<property name="tooltip-text" translatable="yes">Scale the image</property>
</object>
</child>
</object>
</child>
<child>