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author | Pullusb <bernou.samuel@gmail.com> | 2021-07-07 00:56:52 +0300 |
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committer | Pullusb <bernou.samuel@gmail.com> | 2021-07-07 00:56:52 +0300 |
commit | 81b348c4525abdbbd0f176c7486cdc19c0024776 (patch) | |
tree | 56b085c4f0b187f5b79c1196c4302cbee9bfd04f /greasepencil_tools/rotate_canvas.py | |
parent | 046114b96a1c369886a55de0bf958bf7ac2ae5a1 (diff) |
GPencil Tools: Canvas rotate improvement
In camera view : New rotate canvas pivot mode from view center instead of camera center (enabled by default).
Fix rotate canvas precision in free navigation.
Also now compatible with region overlap toggled off.
Diffstat (limited to 'greasepencil_tools/rotate_canvas.py')
-rw-r--r-- | greasepencil_tools/rotate_canvas.py | 63 |
1 files changed, 59 insertions, 4 deletions
diff --git a/greasepencil_tools/rotate_canvas.py b/greasepencil_tools/rotate_canvas.py index 12ee7339..0b46299d 100644 --- a/greasepencil_tools/rotate_canvas.py +++ b/greasepencil_tools/rotate_canvas.py @@ -43,6 +43,15 @@ def draw_callback_px(self, context): shader.uniform_float("color", (0.3, 0.7, 0.2, 0.5)) batch.draw(shader) + ## debug lines + # batch = batch_for_shader(shader, 'LINES', {"pos": [ + # (0,0), (context.area.width, context.area.height), + # (context.area.width, 0), (0, context.area.height) + # ]}) + # shader.bind() + # shader.uniform_float("color", (0.8, 0.1, 0.1, 0.5)) + # batch.draw(shader) + # restore opengl defaults bgl.glLineWidth(1) bgl.glDisable(bgl.GL_BLEND) @@ -111,7 +120,26 @@ class RC_OT_RotateCanvas(bpy.types.Operator): self.cam.matrix_world = self.cam_matrix self.cam.rotation_euler.rotate_axis("Z", self.angle) - else:#free view + if self.use_view_center: + ## apply inverse of the rotation on view offset in cam rotate from view center + neg = -self.angle + rot_mat2d = mathutils.Matrix([[math.cos(neg), -math.sin(neg)], [math.sin(neg), math.cos(neg)]]) + + # scale_mat = mathutils.Matrix([[1.0, 0.0], [0.0, self.ratio]]) + new_cam_offset = self.view_cam_offset.copy() + + ## area deformation correction + new_cam_offset = mathutils.Vector((new_cam_offset[0], new_cam_offset[1] * self.ratio)) + + ## rotate by matrix + new_cam_offset.rotate(rot_mat2d) + + ## area deformation restore + new_cam_offset = mathutils.Vector((new_cam_offset[0], new_cam_offset[1] * self.ratio_inv)) + + context.space_data.region_3d.view_camera_offset = new_cam_offset + + else: # free view context.space_data.region_3d.view_rotation = self._rotation rot = context.space_data.region_3d.view_rotation rot = rot.to_euler() @@ -139,20 +167,38 @@ class RC_OT_RotateCanvas(bpy.types.Operator): self.execute(context) if self.in_cam: self.cam.matrix_world = self.cam_matrix + context.space_data.region_3d.view_camera_offset = self.view_cam_offset else: context.space_data.region_3d.view_rotation = self._rotation return {'CANCELLED'} - return {'RUNNING_MODAL'} def invoke(self, context, event): self.current_area = context.area prefs = get_addon_prefs() self.hud = prefs.canvas_use_hud + self.use_view_center = prefs.canvas_use_view_center self.angle = 0.0 self.in_cam = context.region_data.view_perspective == 'CAMERA' + ## store ratio for view rotate correction + + # CORRECT UI OVERLAP FROM HEADER TOOLBAR + regs = context.area.regions + if context.preferences.system.use_region_overlap: + w = context.area.width + # minus tool header + h = context.area.height - regs[0].height + else: + # minus tool leftbar + sidebar right + w = context.area.width - regs[2].width - regs[3].width + # minus tool header + header + h = context.area.height - regs[0].height - regs[1].height + + self.ratio = h / w + self.ratio_inv = w / h + if self.in_cam: # Get camera from scene self.cam = bpy.context.scene.camera @@ -161,8 +207,12 @@ class RC_OT_RotateCanvas(bpy.types.Operator): if self.cam.lock_rotation[:] != (False, False, False): self.report({'WARNING'}, 'Camera rotation is locked') return {'CANCELLED'} + + if self.use_view_center: + self.center = mathutils.Vector((w/2, h/2)) + else: + self.center = self.get_center_view(context, self.cam) - self.center = self.get_center_view(context, self.cam) # store original rotation mode self.org_rotation_mode = self.cam.rotation_mode # set to euler to works with quaternions, restored at finish @@ -170,9 +220,13 @@ class RC_OT_RotateCanvas(bpy.types.Operator): # store camera matrix world self.cam_matrix = self.cam.matrix_world.copy() # self.cam_init_euler = self.cam.rotation_euler.copy() + + ## initialize current view_offset in camera + self.view_cam_offset = mathutils.Vector(context.space_data.region_3d.view_camera_offset) else: - self.center = mathutils.Vector((context.area.width/2, context.area.height/2)) + self.center = mathutils.Vector((w/2, h/2)) + # self.center = mathutils.Vector((context.area.width/2, context.area.height/2)) # store current rotation self._rotation = context.space_data.region_3d.view_rotation.copy() @@ -188,6 +242,7 @@ class RC_OT_RotateCanvas(bpy.types.Operator): # Initializes the current vector with the same initial vector. self.vector_current = self.vector_initial.copy() + #Snap keys self.snap_ctrl = not prefs.use_ctrl self.snap_shift = not prefs.use_shift |