lv_style_gen.h

Defines

LV_STYLE_CONST_WIDTH(val)

Sets width of Widget. Pixel, percentage and LV_SIZE_CONTENT values can be used. Percentage values are relative to the width of the parent's content area. Default: Widget dependent, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_MIN_WIDTH(val)

Sets a minimal width. Pixel and percentage values can be used. Percentage values are relative to the width of the parent's content area. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_MAX_WIDTH(val)

Sets a maximal width. Pixel and percentage values can be used. Percentage values are relative to the width of the parent's content area. Default: LV_COORD_MAX, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_HEIGHT(val)

Sets height of Widget. Pixel, percentage and LV_SIZE_CONTENT can be used. Percentage values are relative to the height of the parent's content area. Default: Widget dependent, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_MIN_HEIGHT(val)

Sets a minimal height. Pixel and percentage values can be used. Percentage values are relative to the height of the parent's content area. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_MAX_HEIGHT(val)

Sets a maximal height. Pixel and percentage values can be used. Percentage values are relative to the height of the parent's content area. Default: LV_COORD_MAX, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_LENGTH(val)

Its meaning depends on the type of Widget. For example in case of lv_scale it means the length of the ticks. Default: 0, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_X(val)

Set X coordinate of Widget considering the align setting. Pixel and percentage values can be used. Percentage values are relative to the width of the parent's content area. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_Y(val)

Set Y coordinate of Widget considering the align setting. Pixel and percentage values can be used. Percentage values are relative to the height of the parent's content area. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_ALIGN(val)

Set the alignment which tells from which point of the parent the X and Y coordinates should be interpreted. Possible values are: LV_ALIGN_DEFAULT, LV_ALIGN_TOP_LEFT/MID/RIGHT, LV_ALIGN_BOTTOM_LEFT/MID/RIGHT, LV_ALIGN_LEFT/RIGHT_MID, LV_ALIGN_CENTER. LV_ALIGN_DEFAULT means LV_ALIGN_TOP_LEFT with LTR base direction and LV_ALIGN_TOP_RIGHT with RTL base direction. Default: LV_ALIGN_DEFAULT, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_TRANSFORM_WIDTH(val)

Make Widget wider on both sides with this value. Pixel and percentage (with lv_pct(x)) values can be used. Percentage values are relative to Widget's width. Default: 0, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_TRANSFORM_HEIGHT(val)

Make Widget higher on both sides with this value. Pixel and percentage (with lv_pct(x)) values can be used. Percentage values are relative to Widget's height. Default: 0, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_TRANSLATE_X(val)

Move Widget with this value in X direction. Applied after layouts, aligns and other positioning. Pixel and percentage (with lv_pct(x)) values can be used. Percentage values are relative to Widget's width. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_TRANSLATE_Y(val)

Move Widget with this value in Y direction. Applied after layouts, aligns and other positioning. Pixel and percentage (with lv_pct(x)) values can be used. Percentage values are relative to Widget's height. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_TRANSLATE_RADIAL(val)

Move object around the centre of the parent object (e.g. around the circumference of a scale). Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_TRANSFORM_SCALE_X(val)

Zoom Widget horizontally. The value 256 (or LV_SCALE_NONE) means normal size, 128 half size, 512 double size, and so on. Default: 0, inherited: No, layout: Yes, ext. draw: Yes.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_TRANSFORM_SCALE_Y(val)

Zoom Widget vertically. The value 256 (or LV_SCALE_NONE) means normal size, 128 half size, 512 double size, and so on. Default: 0, inherited: No, layout: Yes, ext. draw: Yes.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_TRANSFORM_ROTATION(val)

Rotate Widget. The value is interpreted in 0.1 degree units. E.g. 450 means 45 deg. Default: 0, inherited: No, layout: Yes, ext. draw: Yes.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_TRANSFORM_PIVOT_X(val)

Set pivot point's X coordinate for transformations. Relative to Widget's top left corner. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_TRANSFORM_PIVOT_Y(val)

Set pivot point's Y coordinate for transformations. Relative to Widget's top left corner. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_TRANSFORM_SKEW_X(val)

Skew Widget horizontally. The value is interpreted in 0.1 degree units. E.g. 450 means 45 deg. Default: 0, inherited: No, layout: Yes, ext. draw: Yes.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_TRANSFORM_SKEW_Y(val)

Skew Widget vertically. The value is interpreted in 0.1 degree units. E.g. 450 means 45 deg. Default: 0, inherited: No, layout: Yes, ext. draw: Yes.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_PAD_TOP(val)

Sets the padding on the top. It makes the content area smaller in this direction. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_PAD_BOTTOM(val)

Sets the padding on the bottom. It makes the content area smaller in this direction. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_PAD_LEFT(val)

Sets the padding on the left. It makes the content area smaller in this direction. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_PAD_RIGHT(val)

Sets the padding on the right. It makes the content area smaller in this direction. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_PAD_ROW(val)

Sets the padding between the rows. Used by the layouts. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_PAD_COLUMN(val)

Sets the padding between the columns. Used by the layouts. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_PAD_RADIAL(val)

Pad text labels away from the scale ticks/remainder of the LV_PART_. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_MARGIN_TOP(val)

Sets margin on the top. Widget will keep this space from its siblings in layouts. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_MARGIN_BOTTOM(val)

Sets margin on the bottom. Widget will keep this space from its siblings in layouts. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_MARGIN_LEFT(val)

Sets margin on the left. Widget will keep this space from its siblings in layouts. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_MARGIN_RIGHT(val)

Sets margin on the right. Widget will keep this space from its siblings in layouts. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_BG_COLOR(val)

Set background color of Widget. Default: 0xffffff, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Color to submit

LV_STYLE_CONST_BG_OPA(val)

Set opacity of the background. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent, 255, LV_OPA_100 or LV_OPA_COVER means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency. Default: LV_OPA_TRANSP, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_BG_GRAD_COLOR(val)

Set gradient color of the background. Used only if grad_dir is not LV_GRAD_DIR_NONE. Default: 0x000000, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Color to submit

LV_STYLE_CONST_BG_GRAD_DIR(val)

Set direction of the gradient of the background. Possible values are LV_GRAD_DIR_NONE/HOR/VER. Default: LV_GRAD_DIR_NONE, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_BG_MAIN_STOP(val)

Set point from which background color should start for gradients. 0 means to top/left side, 255 the bottom/right side, 128 the center, and so on. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_BG_GRAD_STOP(val)

Set point from which background's gradient color should start. 0 means to top/left side, 255 the bottom/right side, 128 the center, and so on. Default: 255, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_BG_MAIN_OPA(val)

Set opacity of the first gradient color. Default: 255, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_BG_GRAD_OPA(val)

Set opacity of the second gradient color. Default: 255, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_BG_GRAD(val)

Set gradient definition. The pointed instance must exist while Widget is alive. NULL to disable. It wraps BG_GRAD_COLOR, BG_GRAD_DIR, BG_MAIN_STOP and BG_GRAD_STOP into one descriptor and allows creating gradients with more colors as well. If it's set other gradient related properties will be ignored. Default: NULL, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Pointer to gradient descriptor

LV_STYLE_CONST_BG_IMAGE_SRC(val)

Set a background image. Can be a pointer to lv_image_dsc_t, a path to a file or an LV_SYMBOL_.... Default: NULL, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • val – Pointer to image source

LV_STYLE_CONST_BG_IMAGE_OPA(val)

Set opacity of the background image. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent, 255, LV_OPA_100 or LV_OPA_COVER means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency. Default: LV_OPA_COVER, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_BG_IMAGE_RECOLOR(val)

Set a color to mix to the background image. Default: 0x000000, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Color to submit

LV_STYLE_CONST_BG_IMAGE_RECOLOR_OPA(val)

Set intensity of background image recoloring. Value 0, LV_OPA_0 or LV_OPA_TRANSP means no mixing, 255, LV_OPA_100 or LV_OPA_COVER means full recoloring, other values or LV_OPA_10, LV_OPA_20, etc are interpreted proportionally. Default: LV_OPA_TRANSP, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_BG_IMAGE_TILED(val)

If enabled the background image will be tiled. Possible values are true or false. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_BORDER_COLOR(val)

Set color of the border. Default: 0x000000, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Color to submit

LV_STYLE_CONST_BORDER_OPA(val)

Set opacity of the border. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent, 255, LV_OPA_100 or LV_OPA_COVER means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency. Default: LV_OPA_COVER, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_BORDER_WIDTH(val)

Set width of the border. Only pixel values can be used. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_BORDER_SIDE(val)

Set only which side(s) the border should be drawn. Possible values are LV_BORDER_SIDE_NONE/TOP/BOTTOM/LEFT/RIGHT/INTERNAL. OR-ed values can be used as well, e.g. LV_BORDER_SIDE_TOP | LV_BORDER_SIDE_LEFT. Default: LV_BORDER_SIDE_FULL, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_BORDER_POST(val)

Sets whether the border should be drawn before or after the children are drawn. true: after children, false: before children. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_OUTLINE_WIDTH(val)

Set width of outline in pixels. Default: 0, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_OUTLINE_COLOR(val)

Set color of outline. Default: 0x000000, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Color to submit

LV_STYLE_CONST_OUTLINE_OPA(val)

Set opacity of outline. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent, 255, LV_OPA_100 or LV_OPA_COVER means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency. Default: LV_OPA_COVER, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_OUTLINE_PAD(val)

Set padding of outline, i.e. the gap between Widget and the outline. Default: 0, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_SHADOW_WIDTH(val)

Set width of the shadow in pixels. The value should be >= 0. Default: 0, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_SHADOW_OFFSET_X(val)

Set an offset on the shadow in pixels in X direction. Default: 0, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_SHADOW_OFFSET_Y(val)

Set an offset on the shadow in pixels in Y direction. Default: 0, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_SHADOW_SPREAD(val)

Make shadow calculation to use a larger or smaller rectangle as base. The value can be in pixels to make the area larger/smaller. Default: 0, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_SHADOW_COLOR(val)

Set color of shadow. Default: 0x000000, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Color to submit

LV_STYLE_CONST_SHADOW_OPA(val)

Set opacity of shadow. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent, 255, LV_OPA_100 or LV_OPA_COVER means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency. Default: LV_OPA_COVER, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_IMAGE_OPA(val)

Set opacity of an image. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent, 255, LV_OPA_100 or LV_OPA_COVER means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency. Default: LV_OPA_COVER, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_IMAGE_RECOLOR(val)

Set color to mix with the image. Default: 0x000000, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Color to submit

LV_STYLE_CONST_IMAGE_RECOLOR_OPA(val)

Set intensity of color mixing. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent, 255, LV_OPA_100 or LV_OPA_COVER means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_IMAGE_COLORKEY(val)

Set image colorkey definition. The lv_image_colorkey_t contains two color values: high_color and low_color. the color of pixels ranging from low_color to high_color will be transparent. Default: NULL, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Pointer to image color key

LV_STYLE_CONST_LINE_WIDTH(val)

Set width of lines in pixels. Default: 0, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_LINE_DASH_WIDTH(val)

Set width of dashes in pixels. Note that dash works only on horizontal and vertical lines. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_LINE_DASH_GAP(val)

Set gap between dashes in pixels. Note that dash works only on horizontal and vertical lines. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_LINE_ROUNDED(val)

Make end points of the lines rounded. true: rounded, false: perpendicular line ending. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_LINE_COLOR(val)

Set color of lines. Default: 0x000000, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Color to submit

LV_STYLE_CONST_LINE_OPA(val)

Set opacity of lines. Default: LV_OPA_COVER, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_ARC_WIDTH(val)

Set width (thickness) of arcs in pixels. Default: 0, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_ARC_ROUNDED(val)

Make end points of arcs rounded. true: rounded, false: perpendicular line ending. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_ARC_COLOR(val)

Set color of arc. Default: 0x000000, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Color to submit

LV_STYLE_CONST_ARC_OPA(val)

Set opacity of arcs. Default: LV_OPA_COVER, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_ARC_IMAGE_SRC(val)

Set an image from which arc will be masked out. It's useful to display complex effects on the arcs. Can be a pointer to lv_image_dsc_t or a path to a file. Default: NULL, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Pointer to image source

LV_STYLE_CONST_TEXT_COLOR(val)

Sets color of text. Default: 0x000000, inherited: Yes, layout: No, ext. draw: No.

Parameters:
  • val – Color to submit

LV_STYLE_CONST_TEXT_OPA(val)

Set opacity of text. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent, 255, LV_OPA_100 or LV_OPA_COVER means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency. Default: LV_OPA_COVER, inherited: Yes, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_TEXT_FONT(val)

Set font of text (a pointer lv_font_t *). Default: LV_FONT_DEFAULT, inherited: Yes, layout: Yes, ext. draw: No.

Parameters:
  • val – Pointer to font

LV_STYLE_CONST_TEXT_LETTER_SPACE(val)

Set letter space in pixels. Default: 0, inherited: Yes, layout: Yes, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_TEXT_LINE_SPACE(val)

Set line space in pixels. Default: 0, inherited: Yes, layout: Yes, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_TEXT_DECOR(val)

Set decoration for the text. Possible values are LV_TEXT_DECOR_NONE/UNDERLINE/STRIKETHROUGH. OR-ed values can be used as well. Default: LV_TEXT_DECOR_NONE, inherited: Yes, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_TEXT_ALIGN(val)

Set how to align the lines of the text. Note that it doesn't align the Widget itself, only the lines inside the Widget. Possible values are LV_TEXT_ALIGN_LEFT/CENTER/RIGHT/AUTO. LV_TEXT_ALIGN_AUTO detect the text base direction and uses left or right alignment accordingly. Default: LV_TEXT_ALIGN_AUTO, inherited: Yes, layout: Yes, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_TEXT_OUTLINE_STROKE_COLOR(val)

Sets the color of letter outline stroke. Default: 0x000000, inherited: Yes, layout: No, ext. draw: No.

Parameters:
  • val – Color to submit

LV_STYLE_CONST_TEXT_OUTLINE_STROKE_WIDTH(val)

Set the letter outline stroke width in pixels. Default: 0, inherited: Yes, layout: Yes, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_TEXT_OUTLINE_STROKE_OPA(val)

Set the opacity of the letter outline stroke. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent, 255, LV_OPA_100 or LV_OPA_COVER means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency. Default: LV_OPA_COVER, inherited: Yes, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_BLUR_RADIUS(val)

Sets the intensity of blurring. Applied on each lv_part separately before the children are rendered. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_BLUR_BACKDROP(val)

If true the background of the widget will be blurred. The part should have < 100% opacity to make it visible. If false the given part will be blurred when it's rendered but before drawing the children. Default: false, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_BLUR_QUALITY(val)

Setting to LV_BLUR_QUALITY_SPEED the blurring algorithm will prefer speed over quality. LV_BLUR_QUALITY_PRECISION will force using higher quality but slower blur. With LV_BLUR_QUALITY_AUTO the quality will be selected automatically. Default: LV_BLUR_QUALITY_AUTO, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_DROP_SHADOW_RADIUS(val)

Sets the intensity of blurring. Applied on each lv_part separately before the children are rendered. Default: 0, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_DROP_SHADOW_OFFSET_X(val)

Set an offset on the shadow in pixels in X direction. Default: 0, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_DROP_SHADOW_OFFSET_Y(val)

Set an offset on the shadow in pixels in Y direction. Default: 0, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_DROP_SHADOW_COLOR(val)

Set the color of the shadow. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Color to submit

LV_STYLE_CONST_DROP_SHADOW_OPA(val)

Set the opacity of the shadow. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_DROP_SHADOW_QUALITY(val)

Setting to LV_BLUR_QUALITY_SPEED the blurring algorithm will prefer speed over quality. LV_BLUR_QUALITY_PRECISION will force using higher quality but slower blur. With LV_BLUR_QUALITY_AUTO the quality will be selected automatically. Default: LV_BLUR_QUALITY_PRECISION, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_RADIUS(val)

Set radius on every corner. The value is interpreted in pixels (>= 0) or LV_RADIUS_CIRCLE for max radius. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_RADIAL_OFFSET(val)

Move start point of object (e.g. scale tick) radially. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_CLIP_CORNER(val)

Enable clipping of content that overflows rounded corners of parent Widget. Can be true or false. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_OPA(val)

Scale down all opacity values of the Widget by this factor. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent, 255, LV_OPA_100 or LV_OPA_COVER means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency. Default: LV_OPA_COVER, inherited: Yes, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_OPA_LAYERED(val)

First draw Widget on the layer, then scale down layer opacity factor. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent, 255, LV_OPA_100 or LV_OPA_COVER means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency. Default: LV_OPA_COVER, inherited: Yes, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_COLOR_FILTER_DSC(val)

Mix a color with all colors of the Widget. Default: NULL, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Pointer to color-filter descriptor

LV_STYLE_CONST_COLOR_FILTER_OPA(val)

The intensity of mixing of color filter. Default: LV_OPA_TRANSP, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_RECOLOR(val)

Set a color to mix to the obj. Default: 0x000000, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Color to submit

LV_STYLE_CONST_RECOLOR_OPA(val)

Sets the intensity of color mixing. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent. A value of 255, LV_OPA_100 or LV_OPA_COVER means fully opaque. Intermediate values like LV_OPA_10, LV_OPA_20, etc result in semi-transparency. Default: LV_OPA_TRANSP, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_ANIM(val)

Animation template for Widget's animation. Should be a pointer to lv_anim_t. The animation parameters are widget specific, e.g. animation time could be the E.g. blink time of the cursor on the Text Area or scroll time of a roller. See Widgets' documentation to learn more. Default: NULL, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Pointer to animation descriptor

LV_STYLE_CONST_ANIM_DURATION(val)

Animation duration in milliseconds. Its meaning is widget specific. E.g. blink time of the cursor on the Text Area or scroll time of a roller. See Widgets' documentation to learn more. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_TRANSITION(val)

An initialized lv_style_transition_dsc_t to describe a transition. Default: NULL, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Pointer to transition descriptor

LV_STYLE_CONST_BLEND_MODE(val)

Describes how to blend the colors to the background. Possible values are LV_BLEND_MODE_NORMAL/ADDITIVE/SUBTRACTIVE/MULTIPLY/DIFFERENCE. Default: LV_BLEND_MODE_NORMAL, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_LAYOUT(val)

Set layout of Widget. Children will be repositioned and resized according to policies set for the layout. For possible values see documentation of the layouts. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_BASE_DIR(val)

Set base direction of Widget. Possible values are LV_BIDI_DIR_LTR/RTL/AUTO. Default: LV_BASE_DIR_AUTO, inherited: Yes, layout: Yes, ext. draw: No.

Parameters:
  • val – Value to submit

LV_STYLE_CONST_BITMAP_MASK_SRC(val)

If set, a layer will be created for the widget and the layer will be masked with this A8 bitmap mask. Default: NULL, inherited: No, layout: No, ext. draw: No.

Parameters:
  • val – Pointer to A8 bitmap mask

LV_STYLE_CONST_ROTARY_SENSITIVITY(val)

Adjust sensitivity for rotary encoders in 1/256 unit. It means, 128: slow down the rotary to half, 512: speeds up to double, 256: no change. Default: 256, inherited: Yes, layout: No, ext. draw: No.

Parameters:
  • val – Value to submit

Functions

void lv_style_set_width(lv_style_t *style, int32_t value)

Sets width of Widget. Pixel, percentage and LV_SIZE_CONTENT values can be used. Percentage values are relative to the width of the parent's content area. Default: Widget dependent, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_min_width(lv_style_t *style, int32_t value)

Sets a minimal width. Pixel and percentage values can be used. Percentage values are relative to the width of the parent's content area. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_max_width(lv_style_t *style, int32_t value)

Sets a maximal width. Pixel and percentage values can be used. Percentage values are relative to the width of the parent's content area. Default: LV_COORD_MAX, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_height(lv_style_t *style, int32_t value)

Sets height of Widget. Pixel, percentage and LV_SIZE_CONTENT can be used. Percentage values are relative to the height of the parent's content area. Default: Widget dependent, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_min_height(lv_style_t *style, int32_t value)

Sets a minimal height. Pixel and percentage values can be used. Percentage values are relative to the height of the parent's content area. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_max_height(lv_style_t *style, int32_t value)

Sets a maximal height. Pixel and percentage values can be used. Percentage values are relative to the height of the parent's content area. Default: LV_COORD_MAX, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_length(lv_style_t *style, int32_t value)

Its meaning depends on the type of Widget. For example in case of lv_scale it means the length of the ticks. Default: 0, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_x(lv_style_t *style, int32_t value)

Set X coordinate of Widget considering the align setting. Pixel and percentage values can be used. Percentage values are relative to the width of the parent's content area. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_y(lv_style_t *style, int32_t value)

Set Y coordinate of Widget considering the align setting. Pixel and percentage values can be used. Percentage values are relative to the height of the parent's content area. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_align(lv_style_t *style, lv_align_t value)

Set the alignment which tells from which point of the parent the X and Y coordinates should be interpreted. Possible values are: LV_ALIGN_DEFAULT, LV_ALIGN_TOP_LEFT/MID/RIGHT, LV_ALIGN_BOTTOM_LEFT/MID/RIGHT, LV_ALIGN_LEFT/RIGHT_MID, LV_ALIGN_CENTER. LV_ALIGN_DEFAULT means LV_ALIGN_TOP_LEFT with LTR base direction and LV_ALIGN_TOP_RIGHT with RTL base direction. Default: LV_ALIGN_DEFAULT, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_transform_width(lv_style_t *style, int32_t value)

Make Widget wider on both sides with this value. Pixel and percentage (with lv_pct(x)) values can be used. Percentage values are relative to Widget's width. Default: 0, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_transform_height(lv_style_t *style, int32_t value)

Make Widget higher on both sides with this value. Pixel and percentage (with lv_pct(x)) values can be used. Percentage values are relative to Widget's height. Default: 0, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_translate_x(lv_style_t *style, int32_t value)

Move Widget with this value in X direction. Applied after layouts, aligns and other positioning. Pixel and percentage (with lv_pct(x)) values can be used. Percentage values are relative to Widget's width. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_translate_y(lv_style_t *style, int32_t value)

Move Widget with this value in Y direction. Applied after layouts, aligns and other positioning. Pixel and percentage (with lv_pct(x)) values can be used. Percentage values are relative to Widget's height. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_translate_radial(lv_style_t *style, int32_t value)

Move object around the centre of the parent object (e.g. around the circumference of a scale). Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_transform_scale_x(lv_style_t *style, int32_t value)

Zoom Widget horizontally. The value 256 (or LV_SCALE_NONE) means normal size, 128 half size, 512 double size, and so on. Default: 0, inherited: No, layout: Yes, ext. draw: Yes.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_transform_scale_y(lv_style_t *style, int32_t value)

Zoom Widget vertically. The value 256 (or LV_SCALE_NONE) means normal size, 128 half size, 512 double size, and so on. Default: 0, inherited: No, layout: Yes, ext. draw: Yes.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_transform_rotation(lv_style_t *style, int32_t value)

Rotate Widget. The value is interpreted in 0.1 degree units. E.g. 450 means 45 deg. Default: 0, inherited: No, layout: Yes, ext. draw: Yes.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_transform_pivot_x(lv_style_t *style, int32_t value)

Set pivot point's X coordinate for transformations. Relative to Widget's top left corner. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_transform_pivot_y(lv_style_t *style, int32_t value)

Set pivot point's Y coordinate for transformations. Relative to Widget's top left corner. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_transform_skew_x(lv_style_t *style, int32_t value)

Skew Widget horizontally. The value is interpreted in 0.1 degree units. E.g. 450 means 45 deg. Default: 0, inherited: No, layout: Yes, ext. draw: Yes.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_transform_skew_y(lv_style_t *style, int32_t value)

Skew Widget vertically. The value is interpreted in 0.1 degree units. E.g. 450 means 45 deg. Default: 0, inherited: No, layout: Yes, ext. draw: Yes.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_pad_top(lv_style_t *style, int32_t value)

Sets the padding on the top. It makes the content area smaller in this direction. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_pad_bottom(lv_style_t *style, int32_t value)

Sets the padding on the bottom. It makes the content area smaller in this direction. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_pad_left(lv_style_t *style, int32_t value)

Sets the padding on the left. It makes the content area smaller in this direction. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_pad_right(lv_style_t *style, int32_t value)

Sets the padding on the right. It makes the content area smaller in this direction. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_pad_row(lv_style_t *style, int32_t value)

Sets the padding between the rows. Used by the layouts. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_pad_column(lv_style_t *style, int32_t value)

Sets the padding between the columns. Used by the layouts. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_pad_radial(lv_style_t *style, int32_t value)

Pad text labels away from the scale ticks/remainder of the LV_PART_. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_margin_top(lv_style_t *style, int32_t value)

Sets margin on the top. Widget will keep this space from its siblings in layouts. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_margin_bottom(lv_style_t *style, int32_t value)

Sets margin on the bottom. Widget will keep this space from its siblings in layouts. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_margin_left(lv_style_t *style, int32_t value)

Sets margin on the left. Widget will keep this space from its siblings in layouts. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_margin_right(lv_style_t *style, int32_t value)

Sets margin on the right. Widget will keep this space from its siblings in layouts. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_bg_color(lv_style_t *style, lv_color_t value)

Set background color of Widget. Default: 0xffffff, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Color to submit

void lv_style_set_bg_opa(lv_style_t *style, lv_opa_t value)

Set opacity of the background. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent, 255, LV_OPA_100 or LV_OPA_COVER means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency. Default: LV_OPA_TRANSP, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_bg_grad_color(lv_style_t *style, lv_color_t value)

Set gradient color of the background. Used only if grad_dir is not LV_GRAD_DIR_NONE. Default: 0x000000, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Color to submit

void lv_style_set_bg_grad_dir(lv_style_t *style, lv_grad_dir_t value)

Set direction of the gradient of the background. Possible values are LV_GRAD_DIR_NONE/HOR/VER. Default: LV_GRAD_DIR_NONE, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_bg_main_stop(lv_style_t *style, int32_t value)

Set point from which background color should start for gradients. 0 means to top/left side, 255 the bottom/right side, 128 the center, and so on. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_bg_grad_stop(lv_style_t *style, int32_t value)

Set point from which background's gradient color should start. 0 means to top/left side, 255 the bottom/right side, 128 the center, and so on. Default: 255, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_bg_main_opa(lv_style_t *style, lv_opa_t value)

Set opacity of the first gradient color. Default: 255, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_bg_grad_opa(lv_style_t *style, lv_opa_t value)

Set opacity of the second gradient color. Default: 255, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_bg_grad(lv_style_t *style, const lv_grad_dsc_t *value)

Set gradient definition. The pointed instance must exist while Widget is alive. NULL to disable. It wraps BG_GRAD_COLOR, BG_GRAD_DIR, BG_MAIN_STOP and BG_GRAD_STOP into one descriptor and allows creating gradients with more colors as well. If it's set other gradient related properties will be ignored. Default: NULL, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Pointer to gradient descriptor

void lv_style_set_bg_image_src(lv_style_t *style, const void *value)

Set a background image. Can be a pointer to lv_image_dsc_t, a path to a file or an LV_SYMBOL_.... Default: NULL, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • style – Pointer to style

  • value – Pointer to image source

void lv_style_set_bg_image_opa(lv_style_t *style, lv_opa_t value)

Set opacity of the background image. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent, 255, LV_OPA_100 or LV_OPA_COVER means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency. Default: LV_OPA_COVER, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_bg_image_recolor(lv_style_t *style, lv_color_t value)

Set a color to mix to the background image. Default: 0x000000, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Color to submit

void lv_style_set_bg_image_recolor_opa(lv_style_t *style, lv_opa_t value)

Set intensity of background image recoloring. Value 0, LV_OPA_0 or LV_OPA_TRANSP means no mixing, 255, LV_OPA_100 or LV_OPA_COVER means full recoloring, other values or LV_OPA_10, LV_OPA_20, etc are interpreted proportionally. Default: LV_OPA_TRANSP, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_bg_image_tiled(lv_style_t *style, bool value)

If enabled the background image will be tiled. Possible values are true or false. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_border_color(lv_style_t *style, lv_color_t value)

Set color of the border. Default: 0x000000, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Color to submit

void lv_style_set_border_opa(lv_style_t *style, lv_opa_t value)

Set opacity of the border. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent, 255, LV_OPA_100 or LV_OPA_COVER means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency. Default: LV_OPA_COVER, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_border_width(lv_style_t *style, int32_t value)

Set width of the border. Only pixel values can be used. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_border_side(lv_style_t *style, lv_border_side_t value)

Set only which side(s) the border should be drawn. Possible values are LV_BORDER_SIDE_NONE/TOP/BOTTOM/LEFT/RIGHT/INTERNAL. OR-ed values can be used as well, e.g. LV_BORDER_SIDE_TOP | LV_BORDER_SIDE_LEFT. Default: LV_BORDER_SIDE_FULL, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_border_post(lv_style_t *style, bool value)

Sets whether the border should be drawn before or after the children are drawn. true: after children, false: before children. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_outline_width(lv_style_t *style, int32_t value)

Set width of outline in pixels. Default: 0, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_outline_color(lv_style_t *style, lv_color_t value)

Set color of outline. Default: 0x000000, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Color to submit

void lv_style_set_outline_opa(lv_style_t *style, lv_opa_t value)

Set opacity of outline. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent, 255, LV_OPA_100 or LV_OPA_COVER means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency. Default: LV_OPA_COVER, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_outline_pad(lv_style_t *style, int32_t value)

Set padding of outline, i.e. the gap between Widget and the outline. Default: 0, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_shadow_width(lv_style_t *style, int32_t value)

Set width of the shadow in pixels. The value should be >= 0. Default: 0, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_shadow_offset_x(lv_style_t *style, int32_t value)

Set an offset on the shadow in pixels in X direction. Default: 0, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_shadow_offset_y(lv_style_t *style, int32_t value)

Set an offset on the shadow in pixels in Y direction. Default: 0, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_shadow_spread(lv_style_t *style, int32_t value)

Make shadow calculation to use a larger or smaller rectangle as base. The value can be in pixels to make the area larger/smaller. Default: 0, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_shadow_color(lv_style_t *style, lv_color_t value)

Set color of shadow. Default: 0x000000, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Color to submit

void lv_style_set_shadow_opa(lv_style_t *style, lv_opa_t value)

Set opacity of shadow. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent, 255, LV_OPA_100 or LV_OPA_COVER means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency. Default: LV_OPA_COVER, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_image_opa(lv_style_t *style, lv_opa_t value)

Set opacity of an image. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent, 255, LV_OPA_100 or LV_OPA_COVER means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency. Default: LV_OPA_COVER, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_image_recolor(lv_style_t *style, lv_color_t value)

Set color to mix with the image. Default: 0x000000, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Color to submit

void lv_style_set_image_recolor_opa(lv_style_t *style, lv_opa_t value)

Set intensity of color mixing. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent, 255, LV_OPA_100 or LV_OPA_COVER means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_image_colorkey(lv_style_t *style, const lv_image_colorkey_t *value)

Set image colorkey definition. The lv_image_colorkey_t contains two color values: high_color and low_color. the color of pixels ranging from low_color to high_color will be transparent. Default: NULL, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Pointer to image color key

void lv_style_set_line_width(lv_style_t *style, int32_t value)

Set width of lines in pixels. Default: 0, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_line_dash_width(lv_style_t *style, int32_t value)

Set width of dashes in pixels. Note that dash works only on horizontal and vertical lines. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_line_dash_gap(lv_style_t *style, int32_t value)

Set gap between dashes in pixels. Note that dash works only on horizontal and vertical lines. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_line_rounded(lv_style_t *style, bool value)

Make end points of the lines rounded. true: rounded, false: perpendicular line ending. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_line_color(lv_style_t *style, lv_color_t value)

Set color of lines. Default: 0x000000, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Color to submit

void lv_style_set_line_opa(lv_style_t *style, lv_opa_t value)

Set opacity of lines. Default: LV_OPA_COVER, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_arc_width(lv_style_t *style, int32_t value)

Set width (thickness) of arcs in pixels. Default: 0, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_arc_rounded(lv_style_t *style, bool value)

Make end points of arcs rounded. true: rounded, false: perpendicular line ending. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_arc_color(lv_style_t *style, lv_color_t value)

Set color of arc. Default: 0x000000, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Color to submit

void lv_style_set_arc_opa(lv_style_t *style, lv_opa_t value)

Set opacity of arcs. Default: LV_OPA_COVER, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_arc_image_src(lv_style_t *style, const void *value)

Set an image from which arc will be masked out. It's useful to display complex effects on the arcs. Can be a pointer to lv_image_dsc_t or a path to a file. Default: NULL, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Pointer to image source

void lv_style_set_text_color(lv_style_t *style, lv_color_t value)

Sets color of text. Default: 0x000000, inherited: Yes, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Color to submit

void lv_style_set_text_opa(lv_style_t *style, lv_opa_t value)

Set opacity of text. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent, 255, LV_OPA_100 or LV_OPA_COVER means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency. Default: LV_OPA_COVER, inherited: Yes, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_text_font(lv_style_t *style, const lv_font_t *value)

Set font of text (a pointer lv_font_t *). Default: LV_FONT_DEFAULT, inherited: Yes, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Pointer to font

void lv_style_set_text_letter_space(lv_style_t *style, int32_t value)

Set letter space in pixels. Default: 0, inherited: Yes, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_text_line_space(lv_style_t *style, int32_t value)

Set line space in pixels. Default: 0, inherited: Yes, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_text_decor(lv_style_t *style, lv_text_decor_t value)

Set decoration for the text. Possible values are LV_TEXT_DECOR_NONE/UNDERLINE/STRIKETHROUGH. OR-ed values can be used as well. Default: LV_TEXT_DECOR_NONE, inherited: Yes, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_text_align(lv_style_t *style, lv_text_align_t value)

Set how to align the lines of the text. Note that it doesn't align the Widget itself, only the lines inside the Widget. Possible values are LV_TEXT_ALIGN_LEFT/CENTER/RIGHT/AUTO. LV_TEXT_ALIGN_AUTO detect the text base direction and uses left or right alignment accordingly. Default: LV_TEXT_ALIGN_AUTO, inherited: Yes, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_text_outline_stroke_color(lv_style_t *style, lv_color_t value)

Sets the color of letter outline stroke. Default: 0x000000, inherited: Yes, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Color to submit

void lv_style_set_text_outline_stroke_width(lv_style_t *style, int32_t value)

Set the letter outline stroke width in pixels. Default: 0, inherited: Yes, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_text_outline_stroke_opa(lv_style_t *style, lv_opa_t value)

Set the opacity of the letter outline stroke. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent, 255, LV_OPA_100 or LV_OPA_COVER means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency. Default: LV_OPA_COVER, inherited: Yes, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_blur_radius(lv_style_t *style, int32_t value)

Sets the intensity of blurring. Applied on each lv_part separately before the children are rendered. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_blur_backdrop(lv_style_t *style, bool value)

If true the background of the widget will be blurred. The part should have < 100% opacity to make it visible. If false the given part will be blurred when it's rendered but before drawing the children. Default: false, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_blur_quality(lv_style_t *style, lv_blur_quality_t value)

Setting to LV_BLUR_QUALITY_SPEED the blurring algorithm will prefer speed over quality. LV_BLUR_QUALITY_PRECISION will force using higher quality but slower blur. With LV_BLUR_QUALITY_AUTO the quality will be selected automatically. Default: LV_BLUR_QUALITY_AUTO, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_drop_shadow_radius(lv_style_t *style, int32_t value)

Sets the intensity of blurring. Applied on each lv_part separately before the children are rendered. Default: 0, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_drop_shadow_offset_x(lv_style_t *style, int32_t value)

Set an offset on the shadow in pixels in X direction. Default: 0, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_drop_shadow_offset_y(lv_style_t *style, int32_t value)

Set an offset on the shadow in pixels in Y direction. Default: 0, inherited: No, layout: No, ext. draw: Yes.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_drop_shadow_color(lv_style_t *style, lv_color_t value)

Set the color of the shadow. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Color to submit

void lv_style_set_drop_shadow_opa(lv_style_t *style, lv_opa_t value)

Set the opacity of the shadow. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_drop_shadow_quality(lv_style_t *style, lv_blur_quality_t value)

Setting to LV_BLUR_QUALITY_SPEED the blurring algorithm will prefer speed over quality. LV_BLUR_QUALITY_PRECISION will force using higher quality but slower blur. With LV_BLUR_QUALITY_AUTO the quality will be selected automatically. Default: LV_BLUR_QUALITY_PRECISION, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_radius(lv_style_t *style, int32_t value)

Set radius on every corner. The value is interpreted in pixels (>= 0) or LV_RADIUS_CIRCLE for max radius. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_radial_offset(lv_style_t *style, int32_t value)

Move start point of object (e.g. scale tick) radially. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_clip_corner(lv_style_t *style, bool value)

Enable clipping of content that overflows rounded corners of parent Widget. Can be true or false. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_opa(lv_style_t *style, lv_opa_t value)

Scale down all opacity values of the Widget by this factor. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent, 255, LV_OPA_100 or LV_OPA_COVER means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency. Default: LV_OPA_COVER, inherited: Yes, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_opa_layered(lv_style_t *style, lv_opa_t value)

First draw Widget on the layer, then scale down layer opacity factor. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent, 255, LV_OPA_100 or LV_OPA_COVER means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency. Default: LV_OPA_COVER, inherited: Yes, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_color_filter_dsc(lv_style_t *style, const lv_color_filter_dsc_t *value)

Mix a color with all colors of the Widget. Default: NULL, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Pointer to color-filter descriptor

void lv_style_set_color_filter_opa(lv_style_t *style, lv_opa_t value)

The intensity of mixing of color filter. Default: LV_OPA_TRANSP, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_recolor(lv_style_t *style, lv_color_t value)

Set a color to mix to the obj. Default: 0x000000, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Color to submit

void lv_style_set_recolor_opa(lv_style_t *style, lv_opa_t value)

Sets the intensity of color mixing. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent. A value of 255, LV_OPA_100 or LV_OPA_COVER means fully opaque. Intermediate values like LV_OPA_10, LV_OPA_20, etc result in semi-transparency. Default: LV_OPA_TRANSP, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_anim(lv_style_t *style, const lv_anim_t *value)

Animation template for Widget's animation. Should be a pointer to lv_anim_t. The animation parameters are widget specific, e.g. animation time could be the E.g. blink time of the cursor on the Text Area or scroll time of a roller. See Widgets' documentation to learn more. Default: NULL, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Pointer to animation descriptor

void lv_style_set_anim_duration(lv_style_t *style, uint32_t value)

Animation duration in milliseconds. Its meaning is widget specific. E.g. blink time of the cursor on the Text Area or scroll time of a roller. See Widgets' documentation to learn more. Default: 0, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_transition(lv_style_t *style, const lv_style_transition_dsc_t *value)

An initialized lv_style_transition_dsc_t to describe a transition. Default: NULL, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Pointer to transition descriptor

void lv_style_set_blend_mode(lv_style_t *style, lv_blend_mode_t value)

Describes how to blend the colors to the background. Possible values are LV_BLEND_MODE_NORMAL/ADDITIVE/SUBTRACTIVE/MULTIPLY/DIFFERENCE. Default: LV_BLEND_MODE_NORMAL, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_layout(lv_style_t *style, uint16_t value)

Set layout of Widget. Children will be repositioned and resized according to policies set for the layout. For possible values see documentation of the layouts. Default: 0, inherited: No, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_base_dir(lv_style_t *style, lv_base_dir_t value)

Set base direction of Widget. Possible values are LV_BIDI_DIR_LTR/RTL/AUTO. Default: LV_BASE_DIR_AUTO, inherited: Yes, layout: Yes, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit

void lv_style_set_bitmap_mask_src(lv_style_t *style, const void *value)

If set, a layer will be created for the widget and the layer will be masked with this A8 bitmap mask. Default: NULL, inherited: No, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Pointer to A8 bitmap mask

void lv_style_set_rotary_sensitivity(lv_style_t *style, uint32_t value)

Adjust sensitivity for rotary encoders in 1/256 unit. It means, 128: slow down the rotary to half, 512: speeds up to double, 256: no change. Default: 256, inherited: Yes, layout: No, ext. draw: No.

Parameters:
  • style – Pointer to style

  • value – Value to submit