diff options
Diffstat (limited to 'demos/node-editor/node-editor-window.c')
| -rw-r--r-- | demos/node-editor/node-editor-window.c | 163 |
1 files changed, 154 insertions, 9 deletions
diff --git a/demos/node-editor/node-editor-window.c b/demos/node-editor/node-editor-window.c index 43602640b1..7a7399798b 100644 --- a/demos/node-editor/node-editor-window.c +++ b/demos/node-editor/node-editor-window.c @@ -64,6 +64,7 @@ struct _NodeEditorWindow GListStore *saved_nodes; GListStore *renderers; GskRenderNode *node; + GtkAdjustment *compare_progress; GFileMonitor *file_monitor; @@ -391,7 +392,8 @@ text_view_query_tooltip_cb (GtkWidget *widget, static gboolean load_bytes (NodeEditorWindow *self, - GBytes *bytes); + GBytes *bytes, + gboolean stash); static void load_error (NodeEditorWindow *self, @@ -409,7 +411,7 @@ load_error (NodeEditorWindow *self, node = gtk_snapshot_free_to_node (snapshot); bytes = gsk_render_node_serialize (node); - load_bytes (self, bytes); + load_bytes (self, bytes, TRUE); gsk_render_node_unref (node); g_object_unref (layout); @@ -417,7 +419,8 @@ load_error (NodeEditorWindow *self, static gboolean load_bytes (NodeEditorWindow *self, - GBytes *bytes) + GBytes *bytes, + gboolean stash) { if (!g_utf8_validate (g_bytes_get_data (bytes, NULL), g_bytes_get_size (bytes), NULL)) { @@ -426,7 +429,8 @@ load_bytes (NodeEditorWindow *self, return FALSE; } - stash_current_node (self); + if (stash) + stash_current_node (self); gtk_text_buffer_set_text (self->text_buffer, g_bytes_get_data (bytes, NULL), @@ -452,7 +456,7 @@ load_file_contents (NodeEditorWindow *self, return FALSE; } - return load_bytes (self, bytes); + return load_bytes (self, bytes, TRUE); } static void @@ -472,7 +476,7 @@ saved_node_activate_cb (GtkListView *listview, node = gtk_snapshot_free_to_node (snapshot); bytes = gsk_render_node_serialize (node); - load_bytes (self, bytes); + load_bytes (self, bytes, TRUE); g_object_unref (paintable); } @@ -503,7 +507,7 @@ on_picture_drop_read_done_cb (GObject *source, if (g_output_stream_splice_finish (stream, res, NULL) >= 0) { bytes = g_memory_output_stream_steal_as_bytes (G_MEMORY_OUTPUT_STREAM (stream)); - if (load_bytes (self, bytes)) + if (load_bytes (self, bytes, TRUE)) action = GDK_ACTION_COPY; } @@ -1108,9 +1112,147 @@ out: g_free (source_dir); } +static inline double +double_transform (double start, + double end, + double progress) +{ + return start + (end - start) * progress; +} + +static void +rgba_transform (GdkRGBA *result, + const GdkRGBA *start, + const GdkRGBA *end, + double progress) +{ + result->alpha = CLAMP (double_transform (start->alpha, end->alpha, progress), 0, 1); + + if (result->alpha <= 0.0) + { + result->red = result->green = result->blue = 0.0; + } + else + { + result->red = CLAMP (double_transform (start->red * start->alpha, end->red * end->alpha, progress), 0, 1) / result->alpha; + result->green = CLAMP (double_transform (start->green * start->alpha, end->green * end->alpha, progress), 0, 1) / result->alpha; + result->blue = CLAMP (double_transform (start->blue * start->alpha, end->blue * end->alpha, progress), 0, 1) / result->alpha; + } +} + +static GskRenderNode * +render_node_transform (GskRenderNode *start, + GskRenderNode *end, + double progress) +{ + GskRenderNodeType start_type, end_type; + + start_type = gsk_render_node_get_node_type (start); + end_type = gsk_render_node_get_node_type (end); + + if (start_type == end_type) + { + switch (start_type) + { + case GSK_COLOR_NODE: + { + GdkRGBA rgba; + graphene_rect_t start_bounds, end_bounds, bounds; + + rgba_transform (&rgba, gsk_color_node_get_color (start), gsk_color_node_get_color (end), progress); + gsk_render_node_get_bounds (start, &start_bounds); + gsk_render_node_get_bounds (end, &end_bounds); + graphene_rect_interpolate (&start_bounds, &end_bounds, progress, &bounds); + return gsk_color_node_new (&rgba, &bounds); + } + + case GSK_CAIRO_NODE: + case GSK_TEXT_NODE: + case GSK_TEXTURE_NODE: + case GSK_TEXTURE_SCALE_NODE: + case GSK_LINEAR_GRADIENT_NODE: + case GSK_REPEATING_LINEAR_GRADIENT_NODE: + case GSK_RADIAL_GRADIENT_NODE: + case GSK_REPEATING_RADIAL_GRADIENT_NODE: + case GSK_CONIC_GRADIENT_NODE: + case GSK_BORDER_NODE: + case GSK_INSET_SHADOW_NODE: + case GSK_OUTSET_SHADOW_NODE: + case GSK_TRANSFORM_NODE: + case GSK_OPACITY_NODE: + case GSK_COLOR_MATRIX_NODE: + case GSK_BLUR_NODE: + case GSK_REPEAT_NODE: + case GSK_CLIP_NODE: + case GSK_ROUNDED_CLIP_NODE: + case GSK_SHADOW_NODE: + case GSK_BLEND_NODE: + case GSK_MASK_NODE: + case GSK_CROSS_FADE_NODE: + case GSK_GL_SHADER_NODE: + case GSK_CONTAINER_NODE: + case GSK_DEBUG_NODE: + break; + + case GSK_NOT_A_RENDER_NODE: + default: + g_assert_not_reached (); + break; + } + } + + return gsk_cross_fade_node_new (start, end, progress); +} + +static void +update_compare (NodeEditorWindow *self) +{ + GdkPaintable *from, *to; + GtkSnapshot *snapshot; + GskRenderNode *node, *node_from, *node_to; + GBytes *bytes; + guint n; + + n = g_list_model_get_n_items (G_LIST_MODEL (self->saved_nodes)); + + from = g_list_model_get_item (G_LIST_MODEL (self->saved_nodes), n - 3); + snapshot = gtk_snapshot_new (); + gdk_paintable_snapshot (from, snapshot, gdk_paintable_get_intrinsic_width (from), gdk_paintable_get_intrinsic_height (from)); + node_from = gtk_snapshot_free_to_node (snapshot); + g_object_unref (from); + + to = g_list_model_get_item (G_LIST_MODEL (self->saved_nodes), n - 2); + snapshot = gtk_snapshot_new (); + gdk_paintable_snapshot (to, snapshot, gdk_paintable_get_intrinsic_width (to), gdk_paintable_get_intrinsic_height (to)); + node_to = gtk_snapshot_free_to_node (snapshot); + g_object_unref (to); + + node = render_node_transform (node_from, node_to, gtk_adjustment_get_value (self->compare_progress)); + + bytes = gsk_render_node_serialize (node); + load_bytes (self, bytes, FALSE); + + gsk_render_node_unref (node); + gsk_render_node_unref (node_to); + gsk_render_node_unref (node_from); +} + +static void +compare_toggled_cb (GtkToggleButton *button, + GParamSpec *pspec, + NodeEditorWindow *self) +{ + if (!gtk_toggle_button_get_active (button)) + return; + + stash_current_node (self); + + update_compare (self); +} + static void -dark_mode_cb (GtkToggleButton *button, - GParamSpec *pspec, +dark_mode_cb (GtkToggleButton *button, + GParamSpec *pspec, NodeEditorWindow *self) { g_object_set (gtk_widget_get_settings (GTK_WIDGET (self)), @@ -1231,6 +1373,7 @@ node_editor_window_class_init (NodeEditorWindowClass *class) gtk_widget_class_bind_template_child (widget_class, NodeEditorWindow, text_view); gtk_widget_class_bind_template_child (widget_class, NodeEditorWindow, picture); + gtk_widget_class_bind_template_child (widget_class, NodeEditorWindow, compare_progress); gtk_widget_class_bind_template_child (widget_class, NodeEditorWindow, renderer_listbox); gtk_widget_class_bind_template_child (widget_class, NodeEditorWindow, testcase_popover); gtk_widget_class_bind_template_child (widget_class, NodeEditorWindow, testcase_error_label); @@ -1248,9 +1391,11 @@ node_editor_window_class_init (NodeEditorWindowClass *class) gtk_widget_class_bind_template_callback (widget_class, clip_image_cb); gtk_widget_class_bind_template_callback (widget_class, testcase_save_clicked_cb); gtk_widget_class_bind_template_callback (widget_class, testcase_name_entry_changed_cb); + gtk_widget_class_bind_template_callback (widget_class, compare_toggled_cb); gtk_widget_class_bind_template_callback (widget_class, dark_mode_cb); gtk_widget_class_bind_template_callback (widget_class, on_picture_drag_prepare_cb); gtk_widget_class_bind_template_callback (widget_class, on_picture_drop_cb); + gtk_widget_class_bind_template_callback (widget_class, update_compare); } static GtkWidget * |