UI: Viewport Navigate Gizmo Refactor

Simplification and changes to the Navigation gizmo. Better indication of negative axes, consistent use of color and size to indicate orientation, ability to be resized.

Differential Revision: https://developer.blender.org/D9744

Reviewed by Campbell Barton

1 files changed, 51 insertions, 0 deletions

diff --git a/source/blender/editors/interface/interface_draw.c b/source/blender/editors/interface/interface_draw.c
index 5bb6b0f21e7..6a55421f013 100644
--- a/source/blender/editors/interface/interface_draw.c
+++ b/source/blender/editors/interface/interface_draw.c
@@ -81,6 +81,57 @@ int UI_draw_roundbox_corner_get(void)
 }
 #endif
 
+void UI_draw_roundbox_4fv_ex(float minx,
+                             float miny,
+                             float maxx,
+                             float maxy,
+                             const float inner1[4],
+                             const float inner2[4],
+                             float shade_dir,
+                             float outline[4],
+                             float outline_width,
+                             float rad)
+{
+  /* WATCH: This is assuming the ModelViewProjectionMatrix is area pixel space.
+   * If it has been scaled, then it's no longer valid. */
+  uiWidgetBaseParameters widget_params = {
+      .recti.xmin = minx + outline_width,
+      .recti.ymin = miny + outline_width,
+      .recti.xmax = maxx - outline_width,
+      .recti.ymax = maxy - outline_width,
+      .rect.xmin = minx,
+      .rect.ymin = miny,
+      .rect.xmax = maxx,
+      .rect.ymax = maxy,
+      .radi = rad,
+      .rad = rad,
+      .round_corners[0] = (roundboxtype & UI_CNR_BOTTOM_LEFT) ? 1.0f : 0.0f,
+      .round_corners[1] = (roundboxtype & UI_CNR_BOTTOM_RIGHT) ? 1.0f : 0.0f,
+      .round_corners[2] = (roundboxtype & UI_CNR_TOP_RIGHT) ? 1.0f : 0.0f,
+      .round_corners[3] = (roundboxtype & UI_CNR_TOP_LEFT) ? 1.0f : 0.0f,
+      .color_inner1[0] = inner1 ? inner1[0] : 0.0f,
+      .color_inner1[1] = inner1 ? inner1[1] : 0.0f,
+      .color_inner1[2] = inner1 ? inner1[2] : 0.0f,
+      .color_inner1[3] = inner1 ? inner1[3] : 0.0f,
+      .color_inner2[0] = inner2 ? inner2[0] : inner1 ? inner1[0] : 0.0f,
+      .color_inner2[1] = inner2 ? inner2[1] : inner1 ? inner1[1] : 0.0f,
+      .color_inner2[2] = inner2 ? inner2[2] : inner1 ? inner1[2] : 0.0f,
+      .color_inner2[3] = inner2 ? inner2[3] : inner1 ? inner1[3] : 0.0f,
+      .color_outline[0] = outline ? outline[0] : inner1 ? inner1[0] : 0.0f,
+      .color_outline[1] = outline ? outline[1] : inner1 ? inner1[1] : 0.0f,
+      .color_outline[2] = outline ? outline[2] : inner1 ? inner1[2] : 0.0f,
+      .color_outline[3] = outline ? outline[3] : inner1 ? inner1[3] : 0.0f,
+      .shade_dir = shade_dir,
+      .alpha_discard = 1.0f,
+  };
+  GPUBatch *batch = ui_batch_roundbox_widget_get();
+  GPU_batch_program_set_builtin(batch, GPU_SHADER_2D_WIDGET_BASE);
+  GPU_batch_uniform_4fv_array(batch, "parameters", 11, (float(*)[4]) & widget_params);
+  GPU_blend(GPU_BLEND_ALPHA);
+  GPU_batch_draw(batch);
+  GPU_blend(GPU_BLEND_NONE);
+}
+
 void UI_draw_roundbox_3ub_alpha(bool filled,
                                 float minx,
                                 float miny,