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.
37 #include "osdvector.h"
48 virtual void setSize(UINT w, UINT h); // virtual? really?
49 void setPosition(UINT x, UINT y); // Set position on parent. Even numbers only!!!
50 void createBuffer(); // Make this a root view that goes in the BoxStack
54 void setGap(UINT gap);
55 void setBackgroundColour(const DrawStyle& colour);
56 void setVisible(bool isVisible);
57 void setVideoBackground();
60 // The following are supposed to be abstract functions
61 // However, it is useful to be able to make instances of Boxx
62 // Therefore the following stubs are provided.
63 virtual void preDelete() {}
64 virtual int handleCommand(int x) { return 0; }
65 virtual void processMessage(Message* m) {}
66 virtual bool mouseMove(int x, int y) { return false; }
67 virtual bool mouseLBDOWN(int x, int y) { return false; }
68 virtual bool mouseAndroidScroll(int x, int y,int sx, int sy) { return false; }
69 virtual void deactivateAllControls() {}
73 I think it's functionally equivalent to e.g. delete timers in Boxx::preDelete
74 because the only place where a Boxx is deleted is in
75 BoxStack::remove. There is now a call in BoxStack::remove to Boxx::preDelete
76 The reason for this is to stop timercalls calling BoxStack::update at the
77 same time BoxStack::remove is locked trying to delete the Boxx
81 int getScreenX(); // where is it on screen
83 int getRootBoxOffsetX(); // where is it relative to the top-parent in the boxstack
84 int getRootBoxOffsetY();
85 int getX(); // where is it relative to its parent
86 int getX2(); // .. and the right edge
92 Region* getRegion(); // Not to be used for changing the region
93 Region getRegionR(); // Same but as an object
94 void getRootBoxRegion(Region*);
96 bool getVideoDisplay(VideoDisplay &vd);
98 // Drawing functions level 1
99 void fillColour(const DrawStyle & colour);
100 int drawPara(const char* text, int x, int y, const DrawStyle& colour, unsigned int skiplines=0);
102 // Drawing functions level 0
103 void rectangle(UINT x, UINT y, UINT w, UINT h, const DrawStyle& colour);
104 void rectangle(Region& region, const DrawStyle& colour);
106 void drawText(const char* text, int x, int y, const DrawStyle& colour);
107 void drawText(const char* text, int x, int y, int width, const DrawStyle& colour);
108 void drawTextRJ(const char* text, int x, int y, const DrawStyle& colour);
109 void drawTextCentre(const char* text, int x, int y, const DrawStyle& colour);
111 //void drawPixel(UINT x, UINT y, const Colour& colour, bool fastdraw=false);
112 void drawBitmap(UINT x, UINT y, const Bitmap& bm, const DisplayRegion & region);
114 // void drawPixelAlpha(UINT x, UINT y, const Colour& colour,bool fastdraw=false);
115 void drawTVMedia(TVMediaInfo & tvmedia,float x, float y, float width, float height, Corner corner=TopLeft);
116 void drawClippingRectangle(float x, float y, float w, float h);
119 void drawJpeg(const char *fileName,int x, int y,int *width, int *height);
121 void drawTTChar(int ox, int oy,int x, int y, cTeletextChar c);
122 void drawMonoBitmap(UCHAR*base, int dx, int dy, unsigned int height,unsigned int width, DrawStyle& nextColour);
124 /* This is for system which need a locking of the drawing surface to speed up drawing */
125 void startFastDraw();
128 float charWidth(wchar_t c);
129 wchar_t getWChar(const char* str, unsigned int *length);
131 void add(Boxx*); // a boxx has a set of child boxxs
135 The following function sets the child's parent pointer without adding the child to the children vector.
136 It's a hack (that should be deprecated?) to allow things like WSymbol to be created, do some drawing on
137 the surface and then be deleted again, leaving the drawing present.
138 A better design would be to create many WSymbols - one per symbol and leave them created - then the
139 automatic draw code will be able to redraw the symbols without all that code needing
140 to be in the derived boxx's draw method.
142 void TEMPADD(Boxx* child) { child->setParent(this); }
144 friend class BoxStack;
146 //get the surface this box is drawing to
147 Surface *getSurface();
150 vector<Boxx*> children;
151 VideoDisplay vdisplay;
153 void setParent(Boxx*);
155 bool overlapsVisibleChilds(Region & r);
157 static const int paraMargin = 10;
160 DrawStyle backgroundColour;
161 bool backgroundColourSet;
164 static char numBoxxes;
175 It's "Boxx" because "Box" was already taken.
177 BoxStack replaces Viewman and handles displaying a stack of root boxxs (boxxs with surfaces) on the screen.
179 Boxx relaces Box, Widget and parts of View and represents a box with or without a surface.
180 Let's call a Boxx with a surface a root box, and a boxx without a surface a child box.
182 A boxx with a surface (root) is like an old View and is handled by BoxStack.
183 A boxx without a surface (child) is like and old Widget and needs to be a child box of another boxx (root or not).
185 Don't add a boxx with a surface to another boxx. That isn't the design.
187 So, when you create a boxx, either that boxx calls createBuffer() on itself,
188 or some other box add()s the new box to itself.
190 Root boxxs can overlap each other - this is managed by boxstack.
191 Child boxxs within a parent boxx do not overlap each other.
192 However, a grandchild box can overlap a child box (but must be entirely contained within the child box).
194 TBBoxx replaces View but is now only a convenience class for the window dressing stuff. It isn't required anymore since
195 all the real work that view used to do is done in Boxx now.
197 Obseleted classes: Box, View, Viewman, Widget, others?
198 No code outside boxx should talk about surfaces anymore. Hopefully.