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blender-archive/release/scripts/startup/bl_ui/properties_data_curve.py
Dalai Felinto 312af01fb4 3D Text: improvements to vertical alignment
They way Blender handles vertical alignment is very buggy:

- Top-Base: It works perfectly.

- Bottom: It is actually bottom-baseline,
  and it fails when line size is != 1.0 when working with text boxes.

- Top: Poorly implemented, it should use font's ascent
  (recommended distance from baseline),
  so it has room for accents,
  but it's not one line distance far from the origin (as it is now).

- Center: Poorly implemented.
  This is tricky since there is no silver bullet.

To clear this situation I created a new option (Bottom-Baseline),
and addressed the issues above.
I'm getting the ascent and descent from freetype2,
and use this for padding above/below the text.
Also for vertically centering the text.
2018-09-05 11:33:14 +10:00

489 lines
14 KiB
Python

# ##### BEGIN GPL LICENSE BLOCK #####
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ##### END GPL LICENSE BLOCK #####
# <pep8 compliant>
import bpy
from bpy.types import Panel
from rna_prop_ui import PropertyPanel
from bpy.types import Curve, SurfaceCurve, TextCurve
class CurveButtonsPanel:
bl_space_type = 'PROPERTIES'
bl_region_type = 'WINDOW'
bl_context = "data"
@classmethod
def poll(cls, context):
return (context.curve is not None)
class CurveButtonsPanelCurve(CurveButtonsPanel):
@classmethod
def poll(cls, context):
return (type(context.curve) is Curve)
class CurveButtonsPanelSurface(CurveButtonsPanel):
@classmethod
def poll(cls, context):
return (type(context.curve) is SurfaceCurve)
class CurveButtonsPanelText(CurveButtonsPanel):
@classmethod
def poll(cls, context):
return (type(context.curve) is TextCurve)
class CurveButtonsPanelActive(CurveButtonsPanel):
"""Same as above but for curves only"""
@classmethod
def poll(cls, context):
curve = context.curve
return (curve and type(curve) is not TextCurve and curve.splines.active)
class DATA_PT_context_curve(CurveButtonsPanel, Panel):
bl_label = ""
bl_options = {'HIDE_HEADER'}
def draw(self, context):
layout = self.layout
obj = context.object
curve = context.curve
space = context.space_data
if obj:
layout.template_ID(obj, "data")
elif curve:
layout.template_ID(space, "pin_id")
class DATA_PT_shape_curve(CurveButtonsPanel, Panel):
bl_label = "Shape"
def draw(self, context):
layout = self.layout
curve = context.curve
is_surf = type(curve) is SurfaceCurve
is_curve = type(curve) is Curve
is_text = type(curve) is TextCurve
if is_curve:
row = layout.row()
row.prop(curve, "dimensions", expand=True)
layout.use_property_split = True
col = layout.column()
sub = col.column(align=True)
sub.prop(curve, "resolution_u", text="Resolution Preview U")
if is_surf:
sub.prop(curve, "resolution_v", text="V")
sub = col.column(align=True)
sub.prop(curve, "render_resolution_u", text="Render U")
if is_surf:
sub.prop(curve, "render_resolution_v", text="V")
col.separator()
if is_curve:
col.prop(curve, "twist_mode")
col.prop(curve, "twist_smooth", text="Smooth")
elif is_text:
col.prop(curve, "use_fast_edit", text="Fast Editing")
if is_curve or is_text:
col = layout.column()
col.separator()
sub = col.column()
sub.active = (curve.dimensions == '2D' or (curve.bevel_object is None and curve.dimensions == '3D'))
sub.prop(curve, "fill_mode")
col.prop(curve, "use_fill_deform")
if is_curve:
col = layout.column()
col.separator()
sub = col.column()
sub.prop(curve, "use_radius")
sub.prop(curve, "use_stretch")
sub.prop(curve, "use_deform_bounds")
class DATA_PT_curve_texture_space(CurveButtonsPanel, Panel):
bl_label = "Texture Space"
bl_options = {'DEFAULT_CLOSED'}
COMPAT_ENGINES = {'BLENDER_RENDER', 'BLENDER_EEVEE', 'BLENDER_OPENGL'}
def draw(self, context):
layout = self.layout
layout.use_property_split = True
curve = context.curve
col = layout.column()
col.prop(curve, "use_uv_as_generated")
col.prop(curve, "use_auto_texspace")
col = layout.column()
col.prop(curve, "texspace_location")
col.prop(curve, "texspace_size")
layout.operator("curve.match_texture_space")
class DATA_PT_geometry_curve(CurveButtonsPanelCurve, Panel):
bl_label = "Geometry"
@classmethod
def poll(cls, context):
return (type(context.curve) in {Curve, TextCurve})
def draw(self, context):
layout = self.layout
layout.use_property_split = True
curve = context.curve
col = layout.column()
col.prop(curve, "offset")
sub = col.column()
sub.active = (curve.bevel_object is None)
sub.prop(curve, "extrude")
col.prop(curve, "taper_object")
sub = col.column()
sub.active = curve.taper_object is not None
sub.prop(curve, "use_map_taper")
class DATA_PT_geometry_curve_bevel(CurveButtonsPanelCurve, Panel):
bl_label = "Bevel"
bl_parent_id = "DATA_PT_geometry_curve"
@classmethod
def poll(cls, context):
return (type(context.curve) in {Curve, TextCurve})
def draw(self, context):
layout = self.layout
layout.use_property_split = True
curve = context.curve
col = layout.column()
sub = col.column()
sub.active = (curve.bevel_object is None)
sub.prop(curve, "bevel_depth", text="Depth")
sub.prop(curve, "bevel_resolution", text="Resolution")
col.prop(curve, "bevel_object", text="Object")
sub = col.column()
sub.active = curve.bevel_object is not None
sub.prop(curve, "use_fill_caps")
if type(curve) is not TextCurve:
col = layout.column()
col.active = (
(curve.bevel_depth > 0.0) or
(curve.extrude > 0.0) or
(curve.bevel_object is not None)
)
sub = col.column(align=True)
sub.prop(curve, "bevel_factor_start", text="Bevel Start")
sub.prop(curve, "bevel_factor_end", text="End")
sub = col.column(align=True)
sub.prop(curve, "bevel_factor_mapping_start", text="Bevel Mapping Start")
sub.prop(curve, "bevel_factor_mapping_end", text="End")
class DATA_PT_pathanim(CurveButtonsPanelCurve, Panel):
bl_label = "Path Animation"
def draw_header(self, context):
curve = context.curve
self.layout.prop(curve, "use_path", text="")
def draw(self, context):
layout = self.layout
layout.use_property_split = True
curve = context.curve
layout.active = curve.use_path
col = layout.column()
col.prop(curve, "path_duration", text="Frames")
col.prop(curve, "eval_time")
# these are for paths only
col.separator()
col.prop(curve, "use_path_follow")
class DATA_PT_active_spline(CurveButtonsPanelActive, Panel):
bl_label = "Active Spline"
def draw(self, context):
layout = self.layout
layout.use_property_split = True
curve = context.curve
act_spline = curve.splines.active
is_surf = type(curve) is SurfaceCurve
is_poly = (act_spline.type == 'POLY')
col = layout.column()
if is_poly:
# These settings are below but its easier to have
# polys set aside since they use so few settings
col.prop(act_spline, "use_cyclic_u")
col.prop(act_spline, "use_smooth")
else:
sub = col.column(align=True)
sub.prop(act_spline, "use_cyclic_u")
if is_surf:
sub.prop(act_spline, "use_cyclic_v", text="V")
if act_spline.type == 'NURBS':
sub = col.column(align=True)
# sub.active = (not act_spline.use_cyclic_u)
sub.prop(act_spline, "use_bezier_u", text="Bezier U")
if is_surf:
subsub = sub.column()
subsub.active = (not act_spline.use_cyclic_v)
subsub.prop(act_spline, "use_bezier_v", text="V")
sub = col.column(align=True)
sub.prop(act_spline, "use_endpoint_u", text="Endpoint U")
if is_surf:
subsub = sub.column()
subsub.active = (not act_spline.use_cyclic_v)
subsub.prop(act_spline, "use_endpoint_v", text="V")
sub = col.column(align=True)
sub.prop(act_spline, "order_u", text="Order U")
if is_surf:
sub.prop(act_spline, "order_v", text="V")
sub = col.column(align=True)
sub.prop(act_spline, "resolution_u", text="Resolution U")
if is_surf:
sub.prop(act_spline, "resolution_v", text="V")
if act_spline.type == 'BEZIER':
col.separator()
sub = col.column()
sub.active = (curve.dimensions == '3D')
sub.prop(act_spline, "tilt_interpolation", text="Interpolation Tilt")
col.prop(act_spline, "radius_interpolation", text="Radius")
layout.prop(act_spline, "use_smooth")
class DATA_PT_font(CurveButtonsPanelText, Panel):
bl_label = "Font"
def draw(self, context):
layout = self.layout
text = context.curve
char = context.curve.edit_format
row = layout.split(factor=0.25)
row.label(text="Regular")
row.template_ID(text, "font", open="font.open", unlink="font.unlink")
row = layout.split(factor=0.25)
row.label(text="Bold")
row.template_ID(text, "font_bold", open="font.open", unlink="font.unlink")
row = layout.split(factor=0.25)
row.label(text="Italic")
row.template_ID(text, "font_italic", open="font.open", unlink="font.unlink")
row = layout.split(factor=0.25)
row.label(text="Bold & Italic")
row.template_ID(text, "font_bold_italic", open="font.open", unlink="font.unlink")
layout.separator()
row = layout.row(align=True)
row.prop(char, "use_bold", toggle=True)
row.prop(char, "use_italic", toggle=True)
row.prop(char, "use_underline", toggle=True)
row.prop(char, "use_small_caps", toggle=True)
class DATA_PT_font_transform(CurveButtonsPanelText, Panel):
bl_label = "Transform"
bl_parent_id = "DATA_PT_font"
def draw(self, context):
layout = self.layout
text = context.curve
char = context.curve.edit_format
layout.use_property_split = True
col = layout.column()
col.separator()
col.prop(text, "size", text="Size")
col.prop(text, "shear")
col.separator()
col.prop(text, "family")
col.prop(text, "follow_curve")
col.separator()
sub = col.column(align=True)
sub.prop(text, "underline_position", text="Underline Position")
sub.prop(text, "underline_height", text="Underline Thickness")
col.prop(text, "small_caps_scale", text="Small Caps Scale")
class DATA_PT_paragraph(CurveButtonsPanelText, Panel):
bl_label = "Paragraph"
def draw(self, context):
layout = self.layout
text = context.curve
class DATA_PT_paragraph_alignment(CurveButtonsPanelText, Panel):
bl_parent_id = "DATA_PT_paragraph"
bl_label = "Alignment"
def draw(self, context):
layout = self.layout
layout.use_property_split = True
text = context.curve
col = layout.column()
col.prop(text, "align_x", text="Horizontal")
col.prop(text, "align_y", text="Vertical")
class DATA_PT_paragraph_spacing(CurveButtonsPanelText, Panel):
bl_parent_id = "DATA_PT_paragraph"
bl_label = "Spacing"
def draw(self, context):
layout = self.layout
layout.use_property_split = True
text = context.curve
col = layout.column(align=True)
col.prop(text, "space_character", text="Character Spacing")
col.prop(text, "space_word", text="Word Spacing")
col.prop(text, "space_line", text="Line Spacing")
layout.separator()
col = layout.column(align=True)
col.prop(text, "offset_x", text="Offset X")
col.prop(text, "offset_y", text="Y")
class DATA_PT_text_boxes(CurveButtonsPanelText, Panel):
bl_label = "Text Boxes"
def draw(self, context):
layout = self.layout
text = context.curve
layout.operator("font.textbox_add", icon='ZOOMIN')
for i, box in enumerate(text.text_boxes):
boxy = layout.box()
row = boxy.row()
col = row.column()
col.use_property_split = True
sub = col.column(align=True)
sub.prop(box, "width", text="Size X")
sub.prop(box, "height", text="Y")
sub = col.column(align=True)
sub.prop(box, "x", text="Offset X")
sub.prop(box, "y", text="Y")
row.operator("font.textbox_remove", text="", icon='X', emboss=False).index = i
class DATA_PT_custom_props_curve(CurveButtonsPanel, PropertyPanel, Panel):
COMPAT_ENGINES = {'BLENDER_RENDER', 'BLENDER_EEVEE', 'BLENDER_OPENGL'}
_context_path = "object.data"
_property_type = bpy.types.Curve
classes = (
DATA_PT_context_curve,
DATA_PT_shape_curve,
DATA_PT_curve_texture_space,
DATA_PT_geometry_curve,
DATA_PT_geometry_curve_bevel,
DATA_PT_pathanim,
DATA_PT_active_spline,
DATA_PT_font,
DATA_PT_font_transform,
DATA_PT_paragraph,
DATA_PT_paragraph_alignment,
DATA_PT_paragraph_spacing,
DATA_PT_text_boxes,
DATA_PT_custom_props_curve,
)
if __name__ == "__main__": # only for live edit.
from bpy.utils import register_class
for cls in classes:
register_class(cls)