rvico TRichView Reference | Types

TRVExtraItemProperty Type

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Unit RVItem;

type

 TRVExtraItemProperty =

  (rvepUnknown, rvepVShift, rvepVShiftAbs,

   rvepImageWidth, rvepImageHeight,

   rvepTransparent, rvepTransparentMode,

   rvepTransparentColor, rvepMinHeightOnPage,

   rvepSpacing, rvepResizable,

   rvepDeleteProtect, rvepNoHTMLImageSize,

   rvepAnimationInterval, rvepVisible,

   rvepHidden, rvepShared, 

   rvepBorderWidth, rvepColor, rvepBorderColor,

   rvepOuterHSpacing, rvepOuterVSpacing,

   rvepVAlign);

Identifies an item property of integer type.

Positioning

Property

Applicable To

Default Value

Meaning

rvepVShift

rect.items*

0

Vertical offset, in % of item height (default), or in RVStyle.Units (see rvepVShiftAbs).

Negative values move the item down, positive move it up (relative to the position specified in VAlign)

rvepVShiftAbs

rect.items*

0

If non-zero, rvepVShift defines vertical offset in RVStyle.Units instead of %.

rvepVAlign

rect.items*

ord(rvvaBaseline)

Vertical alignment, TRVVAlign converted to integer.

* "rect.items" include pictures, hot-pictures, controls, bullets, hotspots, labels, sequences, footnotes, endnotes, note references.

Borders and spacing

Scheme:

nontextspacing

Property

Applicable To

Default Value

Meaning

rvepSpacing

rect.items*

1

Spacing around the item content, in RVStyle.Units. Must be a zero or a positive value.

This is a padding, a spacing between the item content and the item border. This area may be colored with rvepColor.

rvepColor

rect.items*

clNone

Background color. It is drawn below the image (and around the image, if rvepSpacing is positive).

rvepBorderWidth

rect.items*

0

Border width, in RVStyle.Units. Must be a zero or a positive value.

rvepBorderColor

rect.items*

clBlack

Border color.

rvepOuterHSpacing

rvepOuterVSpacing

rect.items*

0

Spacing around the border (horizontal and vertical), in RVStyle.Units. Must be a zero or a positive value.

* "rect.items" include pictures, hot-pictures, controls, bullets, hotspots, labels, sequences, footnotes, endnotes, note references.

Pictures

Property

Applicable To

Default Value

Meaning

rvepImageWidth, rvepImageHeight

pictures

hot-pictures

0

If set to positive value, define size of the image in RVStyle.Units. The actual image is not modified, it is just drawn stretched.

See also rvepAnimationInterval property below.

rvepTransparent, rvepTransparentMode, rvepTransparentColor

pictures

hot-pictures

(if they are TBitmap)

 

Correspond to properties of TBitmap: Transparent, TransparentMode, TransparentColor.

Limitations:

transparency is turned off in 256-color mode;

transparency is not supported when printing (although print preview shows transparent bitmaps)

TBitmap implementation of transparency is not ideal; sometimes it may cause weird colors for 256-color images (probably, it was fixed in last versions of Delphi)

rvepMinHeightOnPage

pictures

hot-pictures

0

Affects printing, allows printing large pictures on several pages. Positive value defines minimal height of part of image allowed to be on page.

For example:

1 the image can be printed on two or more pages, it can separated between pages in any place;

100 if the rest of page can contain >= 100 pixels of the image, the image will be separated, otherwise it will be printed on single page;

0 the image/control will be printed on single page.

Do not overuse this feature, it has limitations:

such images/controls are always printed from new line;

for control, OnPrintComponent must return bitmap having exactly the size of the control (if this property = 0, you can return larger bitmap and it will be stretched allowing to create a better printing output)

rvepNoHTMLImageSize

pictures

hot-pictures

bullets

hotspots

list markers

0

If non-zero, image size is not saved in HTML, even if rvsoImageSizes is included in the Options parameter for SaveHTML/SaveHTMLEx

This option is ignored for pictures and hot-pictures, if rvepImageWidth or rvepImageHeight properties are non-zero.

rvepAnimationInterval

pictures

hot-pictures

(if they are TBitmap)

0

Animation delay in 1/100 of second.

If nonzero and rvepImageWidth and/or rvepImageHeight are defined, playing bitmap animation (in imagewidth x imageheight frame)

Editing

Property

Applicable To

Default Value

Meaning

rvepResizable

pictures

hot-pictures

controls

1 (for pictures and hot-pictures),

0 (for controls).

Allows resizing with mouse

0 – no resizing;

non-zero value – resizing is allowed.

rvepDeleteProtect

all non-text items

0

0 – no protection;

non-zero value – item cannot be deleted in editing operations.

See also: rvprDeleteProtect option of Protection for text style.

Other

Property

Applicable To

Default Value

Meaning

rvepVisible

controls

1

Set to 0 to hide the control (it still occupies its place, but is not displayed)

rvepHidden

all non-text items

0

If non-zero, this item is hidden.

rvepShared

pictures

hot-pictures

controls

0

If non-zero, the item content (picture or control) is not deleted when the item is deleted.

See also

TRVExtraItemStrProperty

See also methods of TRichView

SetItemExtraIntProperty,

GetItemExtraIntProperty.

See also methods of TRichViewEdit

SetItemExtraIntPropertyEd,

SetCurrentItemExtraIntProperty,

GetCurrentItemExtraIntProperty.


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