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492 lines
13 KiB
C++
492 lines
13 KiB
C++
/*
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* CMessage.cpp, part of VCMI engine
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*
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* Authors: listed in file AUTHORS in main folder
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*
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* License: GNU General Public License v2.0 or later
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* Full text of license available in license.txt file, in main folder
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*
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*/
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#include "StdInc.h"
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#include "CMessage.h"
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#include "CGameInfo.h"
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#include "gui/SDL_Extensions.h"
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#include "../lib/CGeneralTextHandler.h"
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#include "CBitmapHandler.h"
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#include "gui/CAnimation.h"
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#include "widgets/CComponent.h"
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#include "windows/InfoWindows.h"
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#include "widgets/Buttons.h"
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#include "widgets/TextControls.h"
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const int BETWEEN_COMPS_ROWS = 10;
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const int BEFORE_COMPONENTS = 30;
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const int BETWEEN_COMPS = 30;
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const int SIDE_MARGIN = 30;
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template <typename T, typename U> std::pair<T,U> max(const std::pair<T,U> &x, const std::pair<T,U> &y)
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{
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std::pair<T,U> ret;
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ret.first = std::max(x.first,y.first);
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ret.second = std::max(x.second,y.second);
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return ret;
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}
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//One image component + subtitles below it
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class ComponentResolved : public CIntObject
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{
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public:
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std::shared_ptr<CComponent> comp;
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//blit component with image centered at this position
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void showAll(SDL_Surface * to) override;
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//ComponentResolved();
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ComponentResolved(std::shared_ptr<CComponent> Comp);
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~ComponentResolved();
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};
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// Full set of components for blitting on dialog box
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struct ComponentsToBlit
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{
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std::vector< std::vector<std::shared_ptr<ComponentResolved>>> comps;
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int w, h;
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void blitCompsOnSur(bool blitOr, int inter, int &curh, SDL_Surface *ret);
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ComponentsToBlit(std::vector<std::shared_ptr<CComponent>> & SComps, int maxw, bool blitOr);
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~ComponentsToBlit();
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};
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namespace
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{
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std::array<std::unique_ptr<CAnimation>, PlayerColor::PLAYER_LIMIT_I> dialogBorders;
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std::array<std::vector<std::shared_ptr<IImage>>, PlayerColor::PLAYER_LIMIT_I> piecesOfBox;
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SDL_Surface * background = nullptr;//todo: should be CFilledTexture
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}
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void CMessage::init()
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{
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for(int i=0; i<PlayerColor::PLAYER_LIMIT_I; i++)
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{
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dialogBorders[i] = make_unique<CAnimation>("DIALGBOX");
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dialogBorders[i]->preload();
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for(int j=0; j < dialogBorders[i]->size(0); j++)
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{
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auto image = dialogBorders[i]->getImage(j, 0);
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//assume blue color initially
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if(i != 1)
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image->playerColored(PlayerColor(i));
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piecesOfBox[i].push_back(image);
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}
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}
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background = BitmapHandler::loadBitmap("DIBOXBCK.BMP");
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}
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void CMessage::dispose()
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{
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for(auto & item : dialogBorders)
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item.reset();
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SDL_FreeSurface(background);
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}
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SDL_Surface * CMessage::drawDialogBox(int w, int h, PlayerColor playerColor)
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{
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//prepare surface
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SDL_Surface * ret = SDL_CreateRGBSurface(0, w, h, screen->format->BitsPerPixel, screen->format->Rmask, screen->format->Gmask, screen->format->Bmask, screen->format->Amask);
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for (int i=0; i<w; i+=background->w)//background
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{
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for (int j=0; j<h; j+=background->h)
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{
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Rect srcR(0,0,background->w, background->h);
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Rect dstR(i,j,w,h);
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CSDL_Ext::blitSurface(background, &srcR, ret, &dstR);
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}
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}
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drawBorder(playerColor, ret, w, h);
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return ret;
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}
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std::vector<std::string> CMessage::breakText( std::string text, size_t maxLineWidth, EFonts font )
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{
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std::vector<std::string> ret;
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boost::algorithm::trim_right_if(text,boost::algorithm::is_any_of(std::string(" ")));
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// each iteration generates one output line
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while (text.length())
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{
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ui32 lineWidth = 0; //in characters or given char metric
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ui32 wordBreak = -1; //last position for line break (last space character)
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ui32 currPos = 0; //current position in text
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bool opened = false; //set to true when opening brace is found
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size_t symbolSize = 0; // width of character, in bytes
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size_t glyphWidth = 0; // width of printable glyph, pixels
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// loops till line is full or end of text reached
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while(currPos < text.length() && text[currPos] != 0x0a && lineWidth < maxLineWidth)
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{
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symbolSize = Unicode::getCharacterSize(text[currPos]);
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glyphWidth = graphics->fonts[font]->getGlyphWidth(text.data() + currPos);
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// candidate for line break
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if (ui8(text[currPos]) <= ui8(' '))
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wordBreak = currPos;
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/* We don't count braces in string length. */
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if (text[currPos] == '{')
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opened=true;
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else if (text[currPos]=='}')
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opened=false;
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else
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lineWidth += (ui32)glyphWidth;
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currPos += (ui32)symbolSize;
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}
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// long line, create line break
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if (currPos < text.length() && (text[currPos] != 0x0a))
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{
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if (wordBreak != ui32(-1))
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currPos = wordBreak;
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else
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currPos -= (ui32)symbolSize;
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}
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//non-blank line
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if(currPos != 0)
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{
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ret.push_back(text.substr(0, currPos));
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if (opened)
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/* Close the brace for the current line. */
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ret.back() += '}';
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text.erase(0, currPos);
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}
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else if(text[currPos] == 0x0a)
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{
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ret.push_back(""); //add empty string, no extra actions needed
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}
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if (text.length() != 0 && text[0] == 0x0a)
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{
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/* Remove LF */
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text.erase(0, 1);
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}
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else
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{
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// trim only if line does not starts with LF
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// FIXME: necessary? All lines will be trimmed before returning anyway
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boost::algorithm::trim_left_if(text,boost::algorithm::is_any_of(std::string(" ")));
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}
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if (opened)
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{
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/* Add an opening brace for the next line. */
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if (text.length() != 0)
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text.insert(0, "{");
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}
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}
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/* Trim whitespaces of every line. */
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for (auto & elem : ret)
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boost::algorithm::trim(elem);
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return ret;
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}
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void CMessage::drawIWindow(CInfoWindow * ret, std::string text, PlayerColor player)
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{
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bool blitOr = false;
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if(dynamic_cast<CSelWindow*>(ret)) //it's selection window, so we'll blit "or" between components
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blitOr = true;
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const int sizes[][2] = {{400, 125}, {500, 150}, {600, 200}, {480, 400}};
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assert(ret && ret->text);
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for(int i = 0;
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i < ARRAY_COUNT(sizes)
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&& sizes[i][0] < screen->w - 150
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&& sizes[i][1] < screen->h - 150
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&& ret->text->slider;
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i++)
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{
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ret->text->resize(Point(sizes[i][0], sizes[i][1]));
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}
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if(ret->text->slider)
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{
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ret->text->slider->addUsedEvents(CIntObject::WHEEL | CIntObject::KEYBOARD);
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}
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else
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{
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ret->text->resize(ret->text->label->textSize + Point(10, 10));
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}
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std::pair<int,int> winSize(ret->text->pos.w, ret->text->pos.h); //start with text size
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ComponentsToBlit comps(ret->components,500, blitOr);
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if (ret->components.size())
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winSize.second += 10 + comps.h; //space to first component
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int bw = 0;
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if (ret->buttons.size())
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{
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int bh = 0;
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// Compute total width of buttons
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bw = 20*((int)ret->buttons.size()-1); // space between all buttons
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for(auto & elem : ret->buttons) //and add buttons width
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{
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bw+=elem->pos.w;
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vstd::amax(bh, elem->pos.h);
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}
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winSize.second += 20 + bh;//before button + button
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}
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// Clip window size
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vstd::amax(winSize.second, 50);
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vstd::amax(winSize.first, 80);
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vstd::amax(winSize.first, comps.w);
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vstd::amax(winSize.first, bw);
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vstd::amin(winSize.first, screen->w - 150);
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ret->bitmap = drawDialogBox (winSize.first + 2*SIDE_MARGIN, winSize.second + 2*SIDE_MARGIN, player);
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ret->pos.h=ret->bitmap->h;
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ret->pos.w=ret->bitmap->w;
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ret->center();
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int curh = SIDE_MARGIN;
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int xOffset = (ret->pos.w - ret->text->pos.w)/2;
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if(!ret->buttons.size() && !ret->components.size()) //improvement for very small text only popups -> center text vertically
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{
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if(ret->bitmap->h > ret->text->pos.h + 2*SIDE_MARGIN)
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curh = (ret->bitmap->h - ret->text->pos.h)/2;
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}
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ret->text->moveBy(Point(xOffset, curh));
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curh += ret->text->pos.h;
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if (ret->components.size())
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{
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curh += BEFORE_COMPONENTS;
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comps.blitCompsOnSur (blitOr, BETWEEN_COMPS, curh, ret->bitmap);
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}
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if(ret->buttons.size())
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{
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// Position the buttons at the bottom of the window
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bw = (ret->bitmap->w/2) - (bw/2);
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curh = ret->bitmap->h - SIDE_MARGIN - ret->buttons[0]->pos.h;
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for(auto & elem : ret->buttons)
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{
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elem->moveBy(Point(bw, curh));
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bw += elem->pos.w + 20;
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}
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}
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for(size_t i=0; i<ret->components.size(); i++)
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ret->components[i]->moveBy(Point(ret->pos.x, ret->pos.y));
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}
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void CMessage::drawBorder(PlayerColor playerColor, SDL_Surface * ret, int w, int h, int x, int y)
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{
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if(playerColor.isSpectator())
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playerColor = PlayerColor(1);
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auto & box = piecesOfBox.at(playerColor.getNum());
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// Note: this code assumes that the corner dimensions are all the same.
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// Horizontal borders
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int start_x = x + box[0]->width();
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const int stop_x = x + w - box[1]->width();
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const int bottom_y = y+h-box[7]->height()+1;
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while (start_x < stop_x) {
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int cur_w = stop_x - start_x;
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if (cur_w > box[6]->width())
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cur_w = box[6]->width();
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// Top border
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Rect srcR(0, 0, cur_w, box[6]->height());
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Rect dstR(start_x, y, 0, 0);
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box[6]->draw(ret, &dstR, &srcR);
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// Bottom border
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dstR.y = bottom_y;
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box[7]->draw(ret, &dstR, &srcR);
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start_x += cur_w;
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}
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// Vertical borders
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int start_y = y + box[0]->height();
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const int stop_y = y + h - box[2]->height()+1;
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const int right_x = x+w-box[5]->width();
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while (start_y < stop_y) {
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int cur_h = stop_y - start_y;
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if (cur_h > box[4]->height())
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cur_h = box[4]->height();
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// Left border
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Rect srcR(0, 0, box[4]->width(), cur_h);
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Rect dstR(x, start_y, 0, 0);
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box[4]->draw(ret, &dstR, &srcR);
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// Right border
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dstR.x = right_x;
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box[5]->draw(ret, &dstR, &srcR);
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start_y += cur_h;
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}
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//corners
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Rect dstR(x, y, box[0]->width(), box[0]->height());
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box[0]->draw(ret, &dstR, nullptr);
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dstR=Rect(x+w-box[1]->width(), y, box[1]->width(), box[1]->height());
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box[1]->draw(ret, &dstR, nullptr);
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dstR=Rect(x, y+h-box[2]->height()+1, box[2]->width(), box[2]->height());
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box[2]->draw(ret, &dstR, nullptr);
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dstR=Rect(x+w-box[3]->width(), y+h-box[3]->height()+1, box[3]->width(), box[3]->height());
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box[3]->draw(ret, &dstR, nullptr);
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}
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ComponentResolved::ComponentResolved(std::shared_ptr<CComponent> Comp):
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comp(Comp)
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{
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//Temporary assign ownership on comp
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if (parent)
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parent->removeChild(this);
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if (comp->parent)
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{
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comp->parent->addChild(this);
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comp->parent->removeChild(comp.get());
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}
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addChild(comp.get());
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defActions = 255 - DISPOSE;
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pos.x = pos.y = 0;
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pos.w = comp->pos.w;
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pos.h = comp->pos.h;
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}
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ComponentResolved::~ComponentResolved()
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{
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if (parent)
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{
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removeChild(comp.get());
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parent->addChild(comp.get());
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}
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}
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void ComponentResolved::showAll(SDL_Surface *to)
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{
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CIntObject::showAll(to);
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comp->showAll(to);
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}
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ComponentsToBlit::~ComponentsToBlit() = default;
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ComponentsToBlit::ComponentsToBlit(std::vector<std::shared_ptr<CComponent>> & SComps, int maxw, bool blitOr)
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{
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int orWidth = static_cast<int>(graphics->fonts[FONT_MEDIUM]->getStringWidth(CGI->generaltexth->allTexts[4]));
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w = h = 0;
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if(SComps.empty())
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return;
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comps.resize(1);
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int curw = 0;
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int curr = 0; //current row
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for(auto & SComp : SComps)
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{
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auto cur = std::make_shared<ComponentResolved>(SComp);
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int toadd = (cur->pos.w + BETWEEN_COMPS + (blitOr ? orWidth : 0));
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if (curw + toadd > maxw)
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{
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curr++;
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vstd::amax(w,curw);
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curw = cur->pos.w;
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comps.resize(curr+1);
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}
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else
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{
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curw += toadd;
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vstd::amax(w,curw);
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}
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comps[curr].push_back(cur);
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}
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for(auto & elem : comps)
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{
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int maxHeight = 0;
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for(size_t j=0;j<elem.size();j++)
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vstd::amax(maxHeight, elem[j]->pos.h);
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h += maxHeight + BETWEEN_COMPS_ROWS;
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}
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}
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void ComponentsToBlit::blitCompsOnSur( bool blitOr, int inter, int &curh, SDL_Surface *ret )
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{
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int orWidth = static_cast<int>(graphics->fonts[FONT_MEDIUM]->getStringWidth(CGI->generaltexth->allTexts[4]));
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for (auto & elem : comps)//for each row
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{
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int totalw=0, maxHeight=0;
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for(size_t j=0;j<elem.size();j++)//find max height & total width in this row
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{
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auto cur = elem[j];
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totalw += cur->pos.w;
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vstd::amax(maxHeight, cur->pos.h);
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}
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//add space between comps in this row
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if(blitOr)
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totalw += (inter*2+orWidth) * ((int)elem.size() - 1);
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else
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totalw += (inter) * ((int)elem.size() - 1);
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int middleh = curh + maxHeight/2;//axis for image aligment
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int curw = ret->w/2 - totalw/2;
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for(size_t j=0;j<elem.size();j++)
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{
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auto cur = elem[j];
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cur->moveTo(Point(curw, curh));
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//blit component
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cur->showAll(ret);
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curw += cur->pos.w;
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//if there is subsequent component blit "or"
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if(j<(elem.size()-1))
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{
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if(blitOr)
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{
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curw+=inter;
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graphics->fonts[FONT_MEDIUM]->renderTextLeft(ret, CGI->generaltexth->allTexts[4], Colors::WHITE,
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Point(curw,middleh-((int)graphics->fonts[FONT_MEDIUM]->getLineHeight()/2)));
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curw+=orWidth;
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}
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curw+=inter;
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}
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}
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curh += maxHeight + BETWEEN_COMPS_ROWS;
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}
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}
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