[gnome-builder/wip/gtk4-port] libide/tree: use cell renderer pixbuf for git status



commit d0025da4048eb7d5a2547cbb3e8154e5a0b4b3ff
Author: Christian Hergert <chergert redhat com>
Date:   Tue May 17 14:03:42 2022 -0700

    libide/tree: use cell renderer pixbuf for git status
    
    This doesn't need custom drawing that can't be cached by the renderer
    easily. Instead we will just switch to using a couple icons and rely on
    symbolic loading and caching at lower levels.

 .../actions/builder-vcs-added-symbolic.svg         |  39 ++++
 .../actions/builder-vcs-changed-symbolic.svg       |  39 ++++
 src/libide/tree/ide-cell-renderer-status.c         | 198 +++------------------
 src/libide/tree/ide-cell-renderer-status.h         |   8 +-
 src/libide/tree/ide-tree.c                         |   4 +-
 5 files changed, 105 insertions(+), 183 deletions(-)
---
diff --git a/data/icons/hicolor/scalable/actions/builder-vcs-added-symbolic.svg 
b/data/icons/hicolor/scalable/actions/builder-vcs-added-symbolic.svg
new file mode 100644
index 000000000..39924e697
--- /dev/null
+++ b/data/icons/hicolor/scalable/actions/builder-vcs-added-symbolic.svg
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   height="16px"
+   viewBox="0 0 16 16"
+   width="16px"
+   version="1.1"
+   id="svg95"
+   sodipodi:docname="builder-vcs-added-symbolic.svg"
+   inkscape:version="1.1.2 (0a00cf5339, 2022-02-04)"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape";
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd";
+   xmlns="http://www.w3.org/2000/svg";
+   xmlns:svg="http://www.w3.org/2000/svg";>
+  <defs
+     id="defs99" />
+  <sodipodi:namedview
+     id="namedview97"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     showgrid="false"
+     inkscape:zoom="72.25"
+     inkscape:cx="7.9930796"
+     inkscape:cy="8"
+     inkscape:window-width="2560"
+     inkscape:window-height="1371"
+     inkscape:window-x="0"
+     inkscape:window-y="0"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="svg95" />
+  <path
+     d="M 8,2.75 C 5.1083983,2.75 2.75,5.1083983 2.75,8 c 0,2.891602 2.3583983,5.25 5.25,5.25 2.891602,0 
5.25,-2.358398 5.25,-5.25 C 13.25,5.1083983 10.891602,2.75 8,2.75 Z m 0,0"
+     fill="#2e3436"
+     id="path93"
+     style="stroke-width:0.75" />
+</svg>
diff --git a/data/icons/hicolor/scalable/actions/builder-vcs-changed-symbolic.svg 
b/data/icons/hicolor/scalable/actions/builder-vcs-changed-symbolic.svg
new file mode 100644
index 000000000..4b7485e10
--- /dev/null
+++ b/data/icons/hicolor/scalable/actions/builder-vcs-changed-symbolic.svg
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   height="16px"
+   viewBox="0 0 16 16"
+   width="16px"
+   version="1.1"
+   id="svg183"
+   sodipodi:docname="builder-vcs-changed-symbolic.svg"
+   inkscape:version="1.1.2 (0a00cf5339, 2022-02-04)"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape";
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd";
+   xmlns="http://www.w3.org/2000/svg";
+   xmlns:svg="http://www.w3.org/2000/svg";>
+  <defs
+     id="defs187" />
+  <sodipodi:namedview
+     id="namedview185"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     showgrid="false"
+     inkscape:zoom="54.5625"
+     inkscape:cx="8"
+     inkscape:cy="8"
+     inkscape:window-width="1458"
+     inkscape:window-height="1088"
+     inkscape:window-x="26"
+     inkscape:window-y="23"
+     inkscape:window-maximized="0"
+     inkscape:current-layer="svg183" />
+  <path
+     d="M 7.9999998,2.75 C 5.1083982,2.75 2.75,5.1083983 2.75,8.0000002 2.75,10.891601 5.1083982,13.25 
7.9999998,13.25 10.891602,13.25 13.25,10.891601 13.25,8.0000002 13.25,5.1083983 10.891602,2.75 7.9999998,2.75 
Z m 0,1.5 C 10.065429,4.25 11.75,5.9345706 11.75,8.0000002 11.75,10.06543 10.065429,11.75 7.9999998,11.75 
5.9345704,11.75 4.2499999,10.06543 4.2499999,8.0000002 4.2499999,5.9345706 5.9345704,4.25 7.9999998,4.25 Z m 
0,0"
+     fill="#2e3436"
+     id="path181"
+     style="stroke-width:0.75" />
+</svg>
diff --git a/src/libide/tree/ide-cell-renderer-status.c b/src/libide/tree/ide-cell-renderer-status.c
index 1ca087bd2..7be50bddb 100644
--- a/src/libide/tree/ide-cell-renderer-status.c
+++ b/src/libide/tree/ide-cell-renderer-status.c
@@ -22,189 +22,37 @@
 
 #include "config.h"
 
-#include <math.h>
-
 #include "ide-cell-renderer-status.h"
 
-#define CELL_HEIGHT 16
-#define CELL_WIDTH  16
-#define RPAD        8
-#define LPAD        3
-
-struct _IdeCellRendererStatus
-{
-  GtkCellRenderer  parent_instance;
-  IdeTreeNodeFlags flags;
-};
-
-enum {
-  PROP_0,
-  PROP_FLAGS,
-  N_PROPS
-};
-
-G_DEFINE_FINAL_TYPE (IdeCellRendererStatus, ide_cell_renderer_status, GTK_TYPE_CELL_RENDERER)
-
-static GParamSpec *properties [N_PROPS];
-
-static void
-ide_cell_renderer_status_get_preferred_height (GtkCellRenderer *cell,
-                                               GtkWidget       *widget,
-                                               gint            *min_size,
-                                               gint            *nat_size)
-{
-  g_assert (IDE_IS_CELL_RENDERER_STATUS (cell));
-  g_assert (GTK_IS_WIDGET (widget));
-
-  if (min_size)
-    *min_size = CELL_HEIGHT;
-
-  if (nat_size)
-    *nat_size = CELL_HEIGHT;
-}
-
-static void
-ide_cell_renderer_status_get_preferred_width (GtkCellRenderer *cell,
-                                              GtkWidget       *widget,
-                                              gint            *min_size,
-                                              gint            *nat_size)
-{
-  g_assert (IDE_IS_CELL_RENDERER_STATUS (cell));
-  g_assert (GTK_IS_WIDGET (widget));
-
-  if (min_size)
-    *min_size = LPAD + CELL_WIDTH + RPAD;
-
-  if (nat_size)
-    *nat_size = LPAD + CELL_WIDTH + RPAD;
-}
-
-static void
-ide_cell_renderer_status_snapshot (GtkCellRenderer      *cell,
-                                   GtkSnapshot          *snapshot,
-                                   GtkWidget            *widget,
-                                   const GdkRectangle   *bg_area,
-                                   const GdkRectangle   *cell_area,
-                                   GtkCellRendererState  state)
-{
-  IdeCellRendererStatus *self = (IdeCellRendererStatus *)cell;
-  GtkStyleContext *style_context;
-  cairo_t *cr;
-  GdkRGBA color;
-
-  g_assert (IDE_IS_CELL_RENDERER_STATUS (self));
-  g_assert (GTK_IS_WIDGET (widget));
-  g_assert (bg_area != NULL);
-  g_assert (cell_area != NULL);
-
-  /* FIXME-GTK4: This should be ported to use symbolic icons instead */
-
-  if (self->flags == 0)
-    return;
-
-  style_context = gtk_widget_get_style_context (widget);
-  gtk_style_context_get_color (style_context, &color);
-
-  cr = gtk_snapshot_append_cairo (snapshot,
-                                  &GRAPHENE_RECT_INIT (cell_area->x,
-                                                       cell_area->y,
-                                                       cell_area->width,
-                                                       cell_area->height));
-
-  cairo_translate (cr, cell_area->x, cell_area->y);
-
-  cairo_arc (cr,
-             cell_area->width - RPAD - (CELL_WIDTH/2),
-             (cell_area->height / 2),
-             3,
-             0,
-             M_PI * 2);
+#define VALUE_INIT_STATIC_STRING(name)         \
+  {                                            \
+    .g_type = G_TYPE_STRING,                   \
+    .data = {                                  \
+      { .v_pointer = (char *)name },           \
+      { .v_uint = G_VALUE_NOCOPY_CONTENTS },   \
+    },                                         \
+  }
 
-  gdk_cairo_set_source_rgba (cr, &color);
-  if (self->flags & IDE_TREE_NODE_FLAGS_ADDED)
-    cairo_fill_preserve (cr);
-  cairo_stroke (cr);
-
-  cairo_destroy (cr);
-}
-
-static void
-ide_cell_renderer_status_get_property (GObject    *object,
-                                       guint       prop_id,
-                                       GValue     *value,
-                                       GParamSpec *pspec)
-{
-  IdeCellRendererStatus *self = IDE_CELL_RENDERER_STATUS (object);
-
-  switch (prop_id)
-    {
-    case PROP_FLAGS:
-      g_value_set_uint (value, self->flags);
-      break;
-
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-    }
-}
-
-static void
-ide_cell_renderer_status_set_property (GObject      *object,
-                                       guint         prop_id,
-                                       const GValue *value,
-                                       GParamSpec   *pspec)
-{
-  IdeCellRendererStatus *self = IDE_CELL_RENDERER_STATUS (object);
-
-  switch (prop_id)
-    {
-    case PROP_FLAGS:
-      self->flags = g_value_get_uint (value);
-      break;
-
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-    }
-}
-
-static void
-ide_cell_renderer_status_class_init (IdeCellRendererStatusClass *klass)
-{
-  GObjectClass *object_class = G_OBJECT_CLASS (klass);
-  GtkCellRendererClass *renderer_class = GTK_CELL_RENDERER_CLASS (klass);
-
-  object_class->get_property = ide_cell_renderer_status_get_property;
-  object_class->set_property = ide_cell_renderer_status_set_property;
-
-  renderer_class->get_preferred_height = ide_cell_renderer_status_get_preferred_height;
-  renderer_class->get_preferred_width = ide_cell_renderer_status_get_preferred_width;
-  renderer_class->snapshot = ide_cell_renderer_status_snapshot;
-
-  properties [PROP_FLAGS] =
-    g_param_spec_uint ("flags",
-                       "Flags",
-                       "The flags for the state",
-                       0, G_MAXUINT, 0,
-                       (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
-  g_object_class_install_properties (object_class, N_PROPS, properties);
-}
-
-static void
-ide_cell_renderer_status_init (IdeCellRendererStatus *self)
-{
-}
+static GValue added = VALUE_INIT_STATIC_STRING ("builder-vcs-added-symbolic");
+static GValue changed = VALUE_INIT_STATIC_STRING ("builder-vcs-changed-symbolic");
+static GValue empty = VALUE_INIT_STATIC_STRING (NULL);
 
 GtkCellRenderer *
 ide_cell_renderer_status_new (void)
 {
-  return g_object_new (IDE_TYPE_CELL_RENDERER_STATUS, NULL);
+  return g_object_new (GTK_TYPE_CELL_RENDERER_PIXBUF,
+                       "xpad", 3,
+                       NULL);
 }
 
 void
-ide_cell_renderer_status_set_flags (IdeCellRendererStatus *self,
-                                    IdeTreeNodeFlags       flags)
-{
-  g_return_if_fail (IDE_IS_CELL_RENDERER_STATUS (self));
-
-  self->flags = flags;
+ide_cell_renderer_status_set_flags (GtkCellRenderer  *renderer,
+                                    IdeTreeNodeFlags  flags)
+{
+  if (flags & IDE_TREE_NODE_FLAGS_ADDED)
+    g_object_set_property ((GObject *)renderer, "icon-name", &added);
+  else if (flags & IDE_TREE_NODE_FLAGS_CHANGED)
+    g_object_set_property ((GObject *)renderer, "icon-name", &changed);
+  else
+    g_object_set_property ((GObject *)renderer, "icon-name", &empty);
 }
diff --git a/src/libide/tree/ide-cell-renderer-status.h b/src/libide/tree/ide-cell-renderer-status.h
index 1ed489c58..6ff70ce05 100644
--- a/src/libide/tree/ide-cell-renderer-status.h
+++ b/src/libide/tree/ide-cell-renderer-status.h
@@ -26,12 +26,8 @@
 
 G_BEGIN_DECLS
 
-#define IDE_TYPE_CELL_RENDERER_STATUS (ide_cell_renderer_status_get_type())
-
-G_DECLARE_FINAL_TYPE (IdeCellRendererStatus, ide_cell_renderer_status, IDE, CELL_RENDERER_STATUS, 
GtkCellRenderer)
-
 GtkCellRenderer *ide_cell_renderer_status_new       (void);
-void             ide_cell_renderer_status_set_flags (IdeCellRendererStatus *self,
-                                                     IdeTreeNodeFlags       flags);
+void             ide_cell_renderer_status_set_flags (GtkCellRenderer  *cell,
+                                                     IdeTreeNodeFlags  flags);
 
 G_END_DECLS
diff --git a/src/libide/tree/ide-tree.c b/src/libide/tree/ide-tree.c
index 272c25a86..8917d8b07 100644
--- a/src/libide/tree/ide-tree.c
+++ b/src/libide/tree/ide-tree.c
@@ -144,7 +144,7 @@ state_cell_func (GtkCellLayout   *layout,
   if ((node = ide_tree_model_get_node (IDE_TREE_MODEL (model), iter)))
     flags = ide_tree_node_get_flags (node);
 
-  ide_cell_renderer_status_set_flags (IDE_CELL_RENDERER_STATUS (cell), flags);
+  ide_cell_renderer_status_set_flags (cell, flags);
 }
 
 static void
@@ -610,7 +610,7 @@ ide_tree_init (IdeTree *self)
   gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (column), cell, TRUE);
   gtk_cell_layout_set_cell_data_func (GTK_CELL_LAYOUT (column), cell, text_cell_func, self, NULL);
 
-  cell = g_object_new (IDE_TYPE_CELL_RENDERER_STATUS, NULL);
+  cell = ide_cell_renderer_status_new ();
   gtk_cell_layout_set_cell_data_func (GTK_CELL_LAYOUT (column), cell, state_cell_func, self, NULL);
   gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (column), cell, FALSE);
 


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