Mercurial > projects > mde
view mde/gui/renderer/IRenderer.d @ 93:08a4ae11454b
Widgets now save dimensions without preventing structural changes in the base config file from applying.
Widget dimensional data separated from other data in files, hence above change.
Moved TextAdapter from TextWidget to IRenderer.
author | Diggory Hardy <diggory.hardy@gmail.com> |
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date | Tue, 21 Oct 2008 11:35:15 +0100 |
parents | ea58f277f487 |
children | 2a364c7d82c9 |
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/* LICENSE BLOCK Part of mde: a Modular D game-oriented Engine Copyright © 2007-2008 Diggory Hardy 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, see <http://www.gnu.org/licenses/>. */ /** Interface for the renderer. This is planned to replace decoration.d */ module mde.gui.renderer.IRenderer; public import mde.gui.types; import mde.font.font; /** Interface for renderers. * * Renderers provide unified drawing methods for widget, e.g. to draw a window background, a frame, * or a button. The renderer will effectively be synonymous with the theme, except that a scripted * renderer may also be available. * * The renderer is intended to be per-GUI. */ interface IRenderer { //BEGIN Get dimensions /// A container for the dimensions struct BorderDimensions { /// The dimensions: left, top, right, bottom wdim l, t, r, b; void opAddAssign (BorderDimensions d) { l += d.l; t += d.t; r += d.r; b += d.b; } } /** Use to set and reset these parameters, and to get the border size (which may depend on * them). */ BorderDimensions setSizable (bool wSizable, bool hSizable); /// Which edges of a window are being resized enum RESIZE_TYPE : ubyte { NONE = 0x0, L = 0x1, R = 0x2, T = 0x4, B = 0x8 } /** Used to tell if a click on a window's border is for resizing or moving. * * Depends on setSizable's parameters. * * Params: * cx = * cy = click coordinates relative to window border * w = * h = window size * * Returns: * RESIZE_TYPE = NONE for a move, an or'd combination of L/R/T/B for resizing. */ RESIZE_TYPE getResizeType (wdim cx, wdim cy, wdim w, wdim h); /** Return the renderer's between-widget spacing (for layout widgets). */ wdim layoutSpacing (); //END Get dimensions //BEGIN draw routines /** Restrict following draw operations to given box. * * Restrict "pushes" a restriction onto a stack; relax must be called afterwards to "pop" the * restriction. */ void restrict (wdim x, wdim y, wdim w, wdim h); /** See restrict. */ void relax (); /** Draw a window border plus background. */ void drawWindow (wdim x, wdim y, wdim w, wdim h); /** Draws a widget background. Usually doesn't do anything since backgrounds are transparent. */ void drawWidgetBack (wdim x, wdim y, wdim w, wdim h); /** Draws a blank widget (temporary) */ void drawBlank (wdim x, wdim y, wdim w, wdim h); /** Draws a button frame, in if pushed == true. */ void drawButton (wdim x, wdim y, wdim w, wdim h, bool pushed); /** Get a TextAdapter to draw some text. */ TextAdapter getAdapter (char[] text, int colour); /** For drawing text - one instance per string. * * NOTE: currently inflexible. Could use (function) pointers, class interfaces or struct * interfaces when available to allow flexibility. */ struct TextAdapter { void set (char[] c, int col) { content = c; colour = Colour (col); } void getDimensions (out wdsize w, out wdsize h) { font.updateBlock (content, textCache); w = cast(wdim) textCache.w; h = cast(wdim) textCache.h; } void draw (wdabs x, wdabs y) { font.textBlock (x,y, content, textCache, colour); } char[] content; TextBlock textCache; Colour colour; FontStyle font; } //END draw routines }