GDtexture_edit

Synopsis

define an editor for the Graphics Display Kit texture

GDtexture_edit_notify_templ

group GDtexture_edit_notify_templ {
int+IPort2 shell_vis;
enum tile {
choices = {"Clamp", "Wrap", "Boundary"};
};
enum alpha {
choices = {"Replace", "Modulate", "Decal"};
};
enum filter {
choices = {"Point", "Bilinear", "Trilinear"};
};
enum type {
choices = {"Single Level", "Mip-Map"};
};
int stage;
};

GDtexture_edit_templ

GDtexture_edit_notify_templ GDtexture_edit_templ {
int+IPort2 shell_vis;
int reset;
GDtexture_templ+IPort2+read &texture;
omethod+notify_inst+notify_val upd_func = "GDtexture_edit_update";
};

GDtexture_edit

GDtexture_edit_templ_ GDtexture_edit;

Description

These templates define an editor for the Graphics Display Kit texture. GDtexture_edit_notify_templ and GDtexture_edit_templ define the elements that cause the texture editor's method to execute. GDtexture_edit is the version you instance.As an alternative to using GDtexture_edit and having to define your own user interface for the editor, you can use TextureEditor, an application component. TextureEditor contains GDtexture_edit and defines a user interface.

Input

shell_vis

The parameter controls whether the editor is active: 0 means it is not; 1 means it is.shell_vis is only checked if the texture to which the editor is attached has changed. In this case, if shell_vis is not set to 1, the editor does not update. This inhibits updates to the editor's other subobjects -- which are normally attached to UI widgets -- when the user interface is not visible. The editor always executes when the values of the other parameters change. This means that the texture to which the editor is attached is always updated even if the user interface is not visible.Typically you connect shell_vis to the same UIcmd object that the user selects to display the editor's user interface:shell_vis => UICmd.do;

texture

The texture map controlled by the editor. texture is a connection to an object that matches type GDtexture_templ.

Parameters

tile

This parameter controls what happens when the UV(W) values are outside the 0-1 range:

Value

Meaning

Symbolic constant

0

Clamp UV(W) values that are outside the 0-1 range. Render using the primary color.

GD_TILE_CLAMP

1

Wrap UV(W) values that are outside the 0-1 range.

GD_TILE_WRAP

2

Clamp UV(W) values that are outside the 0-1 range. Render using the value at the texture's boundary.

GD_TILE_BOUNDARY

alpha

This parameter controls how to use the alpha value in the texture pixel to control transparency:

Value

Meaning

Symbolic constant

0

Replace the alpha in the texture pixel with the object's transparency value

GD_ALPHA_REPLACE

1

Modulate the alpha in the texture pixel wth the object's transparency value

GD_ALPHA_MODULATE

filter

This parameter controls the type of filtering to be done when the texure is shrunk or expanded:

Value

Meaning

Symbolic constant

0

Perform point sampling.

GD_FILTER_POINT

1

Perform bilinear sampling

GD_FILTER_BILINEAR

2

Perform trilinear sampling

GD_FILTER_TRILINEAR

type

This parameter controls what type of texture is created:.

Value

Meaning

Symbolic constant

0

Create an unfiltered texture map

GD_TYPE_UNFILTERED

1

Create a MipMapped texture map

GD_TYPE_MIPMAP

reset

This parameter when set causes the texture attached to the editor to be reset to its default values.

Example

Libraries.Graphics_Display.Editors.UI_Editors.TextureEditor

File

v/gd.v

See also related modules

Not Applicable.