2 Copyright 2004-2005 Chris Tallon
4 This file is part of VOMP.
6 VOMP is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 VOMP is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with VOMP; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
34 #include "surfacewin.h"
38 #include "surfacedirectfb.h"
40 #include "surfacemvp.h"
53 virtual void setSize(UINT w, UINT h); // virtual? really?
54 void setPosition(UINT x, UINT y); // Set position on parent. Even numbers only!!!
55 void createBuffer(); // Make this a root view that goes in the BoxStack
59 void setGap(UINT gap);
60 void setBackgroundColour(const Colour& colour);
61 void setVisible(bool isVisible);
64 // The following are supposed to be abstract functions
65 // However, it is useful to be able to make instances of Boxx
66 // Therefore the following stubs are provided.
67 virtual void preDelete() {}
68 virtual int handleCommand(int x) { return 0; }
69 virtual void processMessage(Message* m) {}
70 virtual bool mouseMove(int x, int y) { return false; }
71 virtual bool mouseLBDOWN(int x, int y) { return false; }
72 virtual void deactivateAllControls() {}
76 I think it's functionally equivalent to e.g. delete timers in Boxx::preDelete
77 because the only place where a Boxx is deleted is in
78 BoxStack::remove. There is now a call in BoxStack::remove to Boxx::preDelete
79 The reason for this is to stop timercalls calling BoxStack::update at the
80 same time BoxStack::remove is locked trying to delete the Boxx
84 int getScreenX(); // where is it on screen
86 int getRootBoxOffsetX(); // where is it relative to the top-parent in the boxstack
87 int getRootBoxOffsetY();
88 int getX(); // where is it relative to its parent
89 int getX2(); // .. and the right edge
95 Region* getRegion(); // Not to be used for changing the region
96 Region getRegionR(); // Same but as an object
97 void getRootBoxRegion(Region*);
99 // Drawing functions level 1
100 void fillColour(const Colour& colour);
101 void drawPara(const char* text, int x, int y, const Colour& colour);
103 // Drawing functions level 0
104 void rectangle(UINT x, UINT y, UINT w, UINT h, const Colour& colour);
105 void rectangle(Region& region, const Colour& colour);
107 void drawText(const char* text, int x, int y, const Colour& colour);
108 void drawText(const char* text, int x, int y, int width, const Colour& colour);
109 void drawTextRJ(const char* text, int x, int y, const Colour& colour);
110 void drawTextCentre(const char* text, int x, int y, const Colour& colour);
111 void drawPixel(UINT x, UINT y, const Colour& colour, bool fastdraw=false);
112 void drawBitmap(UINT x, UINT y, const Bitmap& bm);
113 void drawPixelAlpha(UINT x, UINT y, const Colour& colour,bool fastdraw=false);
115 /* This is for system which need a locking of the drawing surface to speed up drawing */
116 void startFastDraw();
119 int charWidth(char c);
121 void add(Boxx*); // a boxx has a set of child boxxs
125 The following function sets the child's parent pointer without adding the child to the children vector.
126 It's a hack (that should be deprecated?) to allow things like WSymbol to be created, do some drawing on
127 the surface and then be deleted again, leaving the drawing present.
128 A better design would be to create many WSymbols - one per symbol and leave them created - then the
129 automatic draw code will be able to redraw the symbols without all that code needing
130 to be in the derived boxx's draw method.
132 void TEMPADD(Boxx* child) { child->setParent(this); }
134 friend class BoxStack;
136 //get the surface this box is drawing to
137 Surface *getSurface();
140 vector<Boxx*> children;
142 void setParent(Boxx*);
145 static const int paraMargin = 10;
148 Colour backgroundColour;
149 bool backgroundColourSet;
152 static char numBoxxes;
163 It's "Boxx" because "Box" was already taken.
165 BoxStack replaces Viewman and handles displaying a stack of root boxxs (boxxs with surfaces) on the screen.
167 Boxx relaces Box, Widget and parts of View and represents a box with or without a surface.
168 Let's call a Boxx with a surface a root box, and a boxx without a surface a child box.
170 A boxx with a surface (root) is like an old View and is handled by BoxStack.
171 A boxx without a surface (child) is like and old Widget and needs to be a child box of another boxx (root or not).
173 Don't add a boxx with a surface to another boxx. That isn't the design.
175 So, when you create a boxx, either that boxx calls createBuffer() on itself,
176 or some other box add()s the new box to itself.
178 Root boxxs can overlap each other - this is managed by boxstack.
179 Child boxxs within a parent boxx do not overlap each other.
180 However, a grandchild box can overlap a child box (but must be entirely contained within the child box).
182 TBBoxx replaces View but is now only a convenience class for the window dressing stuff. It isn't required anymore since
183 all the real work that view used to do is done in Boxx now.
185 Obseleted classes: Box, View, Viewman, Widget, others?
186 No code outside boxx should talk about surfaces anymore. Hopefully.