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.
45 virtual void setSize(UINT w, UINT h); // virtual? really?
46 void setPosition(UINT x, UINT y); // Set position on parent. Even numbers only!!!
47 void createBuffer(); // Make this a root view that goes in the BoxStack
51 void setGap(UINT gap);
52 void setBackgroundColour(const DrawStyle& colour);
53 void setVisible(bool isVisible);
56 // The following are supposed to be abstract functions
57 // However, it is useful to be able to make instances of Boxx
58 // Therefore the following stubs are provided.
59 virtual void preDelete() {}
60 virtual int handleCommand(int x) { return 0; }
61 virtual void processMessage(Message* m) {}
62 virtual bool mouseMove(int x, int y) { return false; }
63 virtual bool mouseLBDOWN(int x, int y) { return false; }
64 virtual bool mouseAndroidScroll(int x, int y,int sx, int sy) { return false; }
65 virtual void deactivateAllControls() {}
69 I think it's functionally equivalent to e.g. delete timers in Boxx::preDelete
70 because the only place where a Boxx is deleted is in
71 BoxStack::remove. There is now a call in BoxStack::remove to Boxx::preDelete
72 The reason for this is to stop timercalls calling BoxStack::update at the
73 same time BoxStack::remove is locked trying to delete the Boxx
77 int getScreenX(); // where is it on screen
79 int getRootBoxOffsetX(); // where is it relative to the top-parent in the boxstack
80 int getRootBoxOffsetY();
81 int getX(); // where is it relative to its parent
82 int getX2(); // .. and the right edge
88 Region* getRegion(); // Not to be used for changing the region
89 Region getRegionR(); // Same but as an object
90 void getRootBoxRegion(Region*);
92 // Drawing functions level 1
93 void fillColour(const DrawStyle & colour);
94 void drawPara(const char* text, int x, int y, const DrawStyle& colour);
96 // Drawing functions level 0
97 void rectangle(UINT x, UINT y, UINT w, UINT h, const DrawStyle& colour);
98 void rectangle(Region& region, const DrawStyle& colour);
100 void drawText(const char* text, int x, int y, const DrawStyle& colour);
101 void drawText(const char* text, int x, int y, int width, const DrawStyle& colour);
102 void drawTextRJ(const char* text, int x, int y, const DrawStyle& colour);
103 void drawTextCentre(const char* text, int x, int y, const DrawStyle& colour);
105 //void drawPixel(UINT x, UINT y, const Colour& colour, bool fastdraw=false);
106 void drawBitmap(UINT x, UINT y, const Bitmap& bm, const DisplayRegion & region);
108 // void drawPixelAlpha(UINT x, UINT y, const Colour& colour,bool fastdraw=false);
111 void drawJpeg(const char *fileName,int x, int y,int *width, int *height);
113 void drawTTChar(int ox, int oy,int x, int y, cTeletextChar c);
114 void drawMonoBitmap(UCHAR*base, int dx, int dy, unsigned int height,unsigned int width, DrawStyle& nextColour);
116 /* This is for system which need a locking of the drawing surface to speed up drawing */
117 void startFastDraw();
120 float charWidth(wchar_t c);
121 wchar_t getWChar(const char* str, unsigned int *length);
123 void add(Boxx*); // a boxx has a set of child boxxs
127 The following function sets the child's parent pointer without adding the child to the children vector.
128 It's a hack (that should be deprecated?) to allow things like WSymbol to be created, do some drawing on
129 the surface and then be deleted again, leaving the drawing present.
130 A better design would be to create many WSymbols - one per symbol and leave them created - then the
131 automatic draw code will be able to redraw the symbols without all that code needing
132 to be in the derived boxx's draw method.
134 void TEMPADD(Boxx* child) { child->setParent(this); }
136 friend class BoxStack;
138 //get the surface this box is drawing to
139 Surface *getSurface();
142 vector<Boxx*> children;
144 void setParent(Boxx*);
147 static const int paraMargin = 10;
150 DrawStyle backgroundColour;
151 bool backgroundColourSet;
154 static char numBoxxes;
165 It's "Boxx" because "Box" was already taken.
167 BoxStack replaces Viewman and handles displaying a stack of root boxxs (boxxs with surfaces) on the screen.
169 Boxx relaces Box, Widget and parts of View and represents a box with or without a surface.
170 Let's call a Boxx with a surface a root box, and a boxx without a surface a child box.
172 A boxx with a surface (root) is like an old View and is handled by BoxStack.
173 A boxx without a surface (child) is like and old Widget and needs to be a child box of another boxx (root or not).
175 Don't add a boxx with a surface to another boxx. That isn't the design.
177 So, when you create a boxx, either that boxx calls createBuffer() on itself,
178 or some other box add()s the new box to itself.
180 Root boxxs can overlap each other - this is managed by boxstack.
181 Child boxxs within a parent boxx do not overlap each other.
182 However, a grandchild box can overlap a child box (but must be entirely contained within the child box).
184 TBBoxx replaces View but is now only a convenience class for the window dressing stuff. It isn't required anymore since
185 all the real work that view used to do is done in Boxx now.
187 Obseleted classes: Box, View, Viewman, Widget, others?
188 No code outside boxx should talk about surfaces anymore. Hopefully.