[gimp] app: "Bend the text along the currently active path" multi-layer aware.



commit 566e55e72e5382daa17b08066287bf2698f92090
Author: Jehan <jehan girinstud io>
Date:   Sun Jun 20 10:36:56 2021 +0200

    app: "Bend the text along the currently active path" multi-layer aware.
    
    It still only requires one single path selected to work, but I updated
    the internal API used.

 app/actions/text-tool-commands.c | 11 ++++++++++-
 app/tools/gimptexttool.c         | 36 +++++++++++++++++++++++++++---------
 app/tools/gimptexttool.h         | 29 +++++++++++++++--------------
 3 files changed, 52 insertions(+), 24 deletions(-)
---
diff --git a/app/actions/text-tool-commands.c b/app/actions/text-tool-commands.c
index f32506a440..61fb9ed1eb 100644
--- a/app/actions/text-tool-commands.c
+++ b/app/actions/text-tool-commands.c
@@ -26,6 +26,7 @@
 #include "actions-types.h"
 
 #include "core/gimp.h"
+#include "core/gimpimage.h"
 #include "core/gimptoolinfo.h"
 
 #include "widgets/gimphelp-ids.h"
@@ -178,8 +179,16 @@ text_tool_text_along_path_cmd_callback (GimpAction *action,
                                         gpointer    data)
 {
   GimpTextTool *text_tool = GIMP_TEXT_TOOL (data);
+  GError       *error     = NULL;
 
-  gimp_text_tool_create_vectors_warped (text_tool);
+  if (! gimp_text_tool_create_vectors_warped (text_tool, &error))
+    {
+      gimp_message (text_tool->image->gimp, G_OBJECT (text_tool),
+                    GIMP_MESSAGE_ERROR,
+                    _("Test along path failed: %s"),
+                    error->message);
+      g_clear_error (&error);
+    }
 }
 
 void
diff --git a/app/tools/gimptexttool.c b/app/tools/gimptexttool.c
index 2d7fc4f2e8..bc8309aa3e 100644
--- a/app/tools/gimptexttool.c
+++ b/app/tools/gimptexttool.c
@@ -2327,27 +2327,43 @@ gimp_text_tool_create_vectors (GimpTextTool *text_tool)
   gimp_image_flush (text_tool->image);
 }
 
-void
-gimp_text_tool_create_vectors_warped (GimpTextTool *text_tool)
+gboolean
+gimp_text_tool_create_vectors_warped (GimpTextTool  *text_tool,
+                                      GError       **error)
 {
-  GimpVectors       *vectors0;
+  GList             *vectors0;
   GimpVectors       *vectors;
   gdouble            box_width;
   gdouble            box_height;
   GimpTextDirection  dir;
   gdouble            offset = 0.0;
 
-  g_return_if_fail (GIMP_IS_TEXT_TOOL (text_tool));
+  g_return_val_if_fail (GIMP_IS_TEXT_TOOL (text_tool), FALSE);
 
   if (! text_tool->text || ! text_tool->image || ! text_tool->layer)
-    return;
+    {
+      if (! text_tool->text)
+        g_set_error_literal (error, GIMP_ERROR, GIMP_FAILED,
+                             _("Text is required."));
+      if (! text_tool->image)
+        g_set_error_literal (error, GIMP_ERROR, GIMP_FAILED,
+                             _("No image."));
+      if (! text_tool->layer)
+        g_set_error_literal (error, GIMP_ERROR, GIMP_FAILED,
+                             _("No layer."));
+      return FALSE;
+    }
 
   box_width  = gimp_item_get_width  (GIMP_ITEM (text_tool->layer));
   box_height = gimp_item_get_height (GIMP_ITEM (text_tool->layer));
 
-  vectors0 = gimp_image_get_active_vectors (text_tool->image);
-  if (! vectors0)
-    return;
+  vectors0 = gimp_image_get_selected_vectors (text_tool->image);
+  if (g_list_length (vectors0) != 1)
+    {
+      g_set_error_literal (error, GIMP_ERROR, GIMP_FAILED,
+                           _("Exactly one path must be selected."));
+      return FALSE;
+    }
 
   vectors = gimp_text_vectors_new (text_tool->image, text_tool->text);
 
@@ -2376,7 +2392,7 @@ gimp_text_tool_create_vectors_warped (GimpTextTool *text_tool)
       break;
     }
 
-  gimp_vectors_warp_vectors (vectors0, vectors, offset);
+  gimp_vectors_warp_vectors (vectors0->data, vectors, offset);
 
   gimp_item_set_visible (GIMP_ITEM (vectors), TRUE, FALSE);
 
@@ -2384,6 +2400,8 @@ gimp_text_tool_create_vectors_warped (GimpTextTool *text_tool)
                           GIMP_IMAGE_ACTIVE_PARENT, -1, TRUE);
 
   gimp_image_flush (text_tool->image);
+
+  return TRUE;
 }
 
 GimpTextDirection
diff --git a/app/tools/gimptexttool.h b/app/tools/gimptexttool.h
index b939d1856b..cda2820eab 100644
--- a/app/tools/gimptexttool.h
+++ b/app/tools/gimptexttool.h
@@ -106,27 +106,28 @@ void       gimp_text_tool_register               (GimpToolRegisterCallback  call
 
 GType      gimp_text_tool_get_type               (void) G_GNUC_CONST;
 
-gboolean   gimp_text_tool_set_layer              (GimpTextTool *text_tool,
-                                                  GimpLayer    *layer);
+gboolean   gimp_text_tool_set_layer              (GimpTextTool  *text_tool,
+                                                  GimpLayer     *layer);
 
-gboolean   gimp_text_tool_get_has_text_selection (GimpTextTool *text_tool);
+gboolean   gimp_text_tool_get_has_text_selection (GimpTextTool  *text_tool);
 
-void       gimp_text_tool_delete_selection       (GimpTextTool *text_tool);
-void       gimp_text_tool_cut_clipboard          (GimpTextTool *text_tool);
-void       gimp_text_tool_copy_clipboard         (GimpTextTool *text_tool);
-void       gimp_text_tool_paste_clipboard        (GimpTextTool *text_tool);
+void       gimp_text_tool_delete_selection       (GimpTextTool  *text_tool);
+void       gimp_text_tool_cut_clipboard          (GimpTextTool  *text_tool);
+void       gimp_text_tool_copy_clipboard         (GimpTextTool  *text_tool);
+void       gimp_text_tool_paste_clipboard        (GimpTextTool  *text_tool);
 
-void       gimp_text_tool_create_vectors         (GimpTextTool *text_tool);
-void       gimp_text_tool_create_vectors_warped  (GimpTextTool *text_tool);
+void       gimp_text_tool_create_vectors         (GimpTextTool  *text_tool);
+gboolean   gimp_text_tool_create_vectors_warped  (GimpTextTool  *text_tool,
+                                                  GError       **error);
 
 GimpTextDirection
-           gimp_text_tool_get_direction          (GimpTextTool *text_tool);
+           gimp_text_tool_get_direction          (GimpTextTool  *text_tool);
 
 /*  only for the text editor  */
-void       gimp_text_tool_clear_layout           (GimpTextTool *text_tool);
-gboolean   gimp_text_tool_ensure_layout          (GimpTextTool *text_tool);
-void       gimp_text_tool_apply                  (GimpTextTool *text_tool,
-                                                  gboolean      push_undo);
+void       gimp_text_tool_clear_layout           (GimpTextTool  *text_tool);
+gboolean   gimp_text_tool_ensure_layout          (GimpTextTool  *text_tool);
+void       gimp_text_tool_apply                  (GimpTextTool  *text_tool,
+                                                  gboolean       push_undo);
 
 
 #endif /* __GIMP_TEXT_TOOL_H__ */


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