Scol » Lib2D GTK

h1. Images

!>http://library.gnome.org/devel/gtk/unstable/image.png!

A *widget* displaying an image. To manage any image resource, see [[Pix]] api instead.

If the image file contains an animation, the result will be animated too. The supported formats are the same than GTK+.

{{toc}}

h2. _gtkImageNew

Create a new image object.

Prototype : *fun [Chn I u0 u1] ObjGtkWidget*

table.

|*channel*|Chn|any channel||

|*flag*|I|a flag to give the type|SCOL_IMAGE_EMPTY : create an empty image object. You can set a content later.|

| | | |SCOL_IMAGE_FILE : create an image object from an image file. The supported formats are the same than GTK+. You can modify it later.|

| | | |SCOL_IMAGE_PIX : create an image object from an existing pix object. You can modify it later.|

| | | |SCOL_IMAGE_PIXANIM : create an image object from an existing animated pix object. You can modify it later.|

| | | |SCOL_IMAGE_ICON : create an image object from an icon name of the current theme. You can modify it later.|

| | | |SCIMAGE_STOCK : create an image object from a stock item name (owned to GTK+ or owned to you, via the factory (see this). You can modify it later.|

|*param*|u0|This parameter depends to the previous _flag_.|If _flag_ is SCOL_IMAGE_FILE, SCOL_IMAGE_ICON or SCOL_IMAGE_STOCK, then _param_ has a S type. It must be the filename to load or the name of the icon or the stock item.|

| | | |If _flag_ is SCOL_IMAGE_PIX or SCOL_IMAGE_PIXANIM, the type is ObjGtkPix, _param_ must be a ObjGtkPix object|

| | | |Otherwise, _param_ should be nil|

|*option*|u1|At this time, _option_ should be a I object (integer) and depends to the previous _flag_.|If the _flag_ is SCOL_IMAGE_ICON or SCOL_IMAGE_STOCK, then _option_ gives the predefined size of the icon / stock item : SCOL_ICON_SIZE_MENU, SCOL_ICON_SIZE_SMALL_TOOLBAR, SCOL_ICON_SIZE_LARGE_TOOLBAR, SCOL_ICON_SIZE_BUTTON, SCOL_ICON_SIZE_DND, SCOL_ICON_SIZE_DIALOG. An other value should not be set.|

| | | |Otherwise, _option_ should be nil|

+Return+ : ObjGtkWidget : a new image object or nil if error

h2. _gtkImageSet

Changes the content of an existing image object.

Prototype : *fun [ObjGtkWidget I u0 u1] ObjGtkWidget*

table.

|*image*|ObjGtkWidget|an existing image object| |

|*flag*|I|a flag to give the type|SCOL_IMAGE_FILE : sets an image object from an image file. The supported formats are the same than GTK+. You can modify it later.|

| | | |SCOL_IMAGE_PIX : sets an image object from an existing pix object. You can modify it later.|

| | | |SCOL_IMAGE_PIXANIM : sets an image object from an existing animated pix object. You can modify it later.|

| | | |SCOL_IMAGE_ICON : sets an image object from an icon name of the current theme. You can modify it later.|

| | | |SCIMAGE_STOCK : sets an image object from a stock item name (owned to GTK+ or owned to you, via the factory (see this). You can modify it later.|

|*param*|u0|This parameter depends to the previous _flag_.|If _flag_ is SCOL_IMAGE_FILE, SCOL_IMAGE_ICON or SCOL_IMAGE_STOCK, then _param_ has a S type. It must be the filename to load or the name of the icon or the stock item.|

| | | |If _flag_ is SCOL_IMAGE_PIX or SCOL_IMAGE_PIXANIM, the type is ObjGtkPix, _param_ must be a ObjGtkPix object|

| | | |Otherwise, _param_ should be nil|

|*option*|u1|At this time, _option_ should be a I object (integer) and depends to the previous _flag_.|If the _flag_ is SCOL_IMAGE_ICON or SCOL_IMAGE_STOCK, then _option_ gives the predefined size of the icon / stock item : SCOL_ICON_SIZE_MENU, SCOL_ICON_SIZE_SMALL_TOOLBAR, SCOL_ICON_SIZE_LARGE_TOOLBAR, SCOL_ICON_SIZE_BUTTON, SCOL_ICON_SIZE_DND, SCOL_ICON_SIZE_DIALOG. An other value should not be set.|

| | | |Otherwise, _option_ should be nil|

+Return+ : ObjGtkWidget : the same image object or nil if error

h2. _gtkImageGetType

Returns the type of a image object

Prototype : *fun [ObjGtkWidget] I*

+Return+ : I :

* SCOL_IMAGE_EMPTY : there is no image displayed by the widget.

* SCOL_IMAGE_PIX : the widget contains a pix object (directly from a pix object or from an image file).

* SCOL_IMAGE_STOCK : the widget contains a stock icon name

* SCOL_IMAGE_PIXANIM : the widget contains an animated pix object (directly from an animated pix object or from an image file).

* SCOL_IMAGE_ICON : the widget contains a named icon.

* nil if an errors occurs or if the type couldn't be unknown

h2. _gtkImageGetContent

Returns the content of an image object. The return depends to the type of the image object.

Prototype : *fun [ObjGtkWidget] [ObjGtkPix S I]*

+Return+ : [ObjGtkPix S I]

* ObjGtkPix : a pix object, if the image object has it. Otherwise nil.

* S : the name of the icon or the stock item; otherwise nil.

* I : the size of the icon or stock item; otherwise nil

Return [[Api]]