199 lines
5.5 KiB
C++
199 lines
5.5 KiB
C++
//
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// DRAGGABLEWINDOW.CPP
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//
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// Graphical User Interface draggable window class
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// by James Hammons
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//
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// JLH = James Hammons <jlhamm@acm.org>
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//
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// WHO WHEN WHAT
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// --- ---------- ------------------------------------------------------------
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// JLH 03/01/2006 Created this file
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//
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// STILL TO DO:
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//
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// - Check for parent's extents and clip movement against those extents
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//
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#include "draggablewindow.h"
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#include "button.h"
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#include "guimisc.h" // Various support functions
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#include <algorithm>
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#if SDL_BYTEORDER == SDL_BIG_ENDIAN
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#define MASK_R 0xFF000000
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#define MASK_G 0x00FF0000
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#define MASK_B 0x0000FF00
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#define MASK_A 0x000000FF
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#else
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#define MASK_R 0x000000FF
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#define MASK_G 0x0000FF00
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#define MASK_B 0x00FF0000
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#define MASK_A 0xFF000000
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#endif
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#define BACKGROUND_IMG_TEST
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//#define USE_COVERAGE_LISTS
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//
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// DraggableWindow class implementation
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//
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// NOTE: FG/BG colors are hard-wired
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//
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DraggableWindow::DraggableWindow(uint32_t x/*= 0*/, uint32_t y/*= 0*/, uint32_t w/*= 0*/, uint32_t h/*= 0*/,
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void (* f)(Element *)/*= NULL*/):
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Element(x, y, w, h, 0x4D, 0xFF, 0x84, 0xFF, 0x1F, 0x84, 0x84, 0xFF), handler(f),
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clicked(false),
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cbWidth((closeBox[0] << 8) | closeBox[1]), cbHeight((closeBox[2] << 8) | closeBox[3]),
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cbUp(SDL_CreateRGBSurfaceFrom(&closeBox[4], cbWidth, cbHeight, 32, cbWidth * 4,
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MASK_R, MASK_G, MASK_B, MASK_A)),
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cbDown(SDL_CreateRGBSurfaceFrom(&closeBoxDown[4], cbWidth, cbHeight, 32, cbWidth * 4,
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MASK_R, MASK_G, MASK_B, MASK_A)),
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cbHover(SDL_CreateRGBSurfaceFrom(&closeBoxHover[4], cbWidth, cbHeight, 32, cbWidth * 4,
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MASK_R, MASK_G, MASK_B, MASK_A))
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{
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//Could probably move this into the initializer list as well...
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closeButton = new Button(w - (cbWidth + 1), 1, cbUp, cbHover, cbDown, this);
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list.push_back(closeButton);
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#ifdef BACKGROUND_IMG_TEST
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uint16_t imgWidth = (floppyDiskImg[0] << 8) | floppyDiskImg[1];
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uint16_t imgHeight = (floppyDiskImg[2] << 8) | floppyDiskImg[3];
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img = SDL_CreateRGBSurfaceFrom(&floppyDiskImg[4], imgWidth, imgHeight, 32, imgWidth * 4,
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MASK_R, MASK_G, MASK_B, MASK_A);
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#endif
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CreateBackstore();
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Draw(); // Can we do this in the constructor??? Mebbe.
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}
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DraggableWindow::~DraggableWindow()
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{
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for(uint32_t i=0; i<list.size(); i++)
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if (list[i])
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delete list[i];
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#ifdef BACKGROUND_IMG_TEST
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SDL_FreeSurface(img);
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#endif
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SDL_FreeSurface(cbUp);
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SDL_FreeSurface(cbDown);
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SDL_FreeSurface(cbHover);
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}
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void DraggableWindow::HandleKey(SDL_Scancode key)
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{
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if (key == SDL_SCANCODE_ESCAPE)
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{
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SDL_Event event;
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event.type = SDL_USEREVENT, event.user.code = WINDOW_CLOSE;
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SDL_PushEvent(&event);
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}
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// Handle the items this window contains...
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for(uint32_t i=0; i<list.size(); i++)
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list[i]->HandleKey(key);
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}
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void DraggableWindow::HandleMouseMove(uint32_t x, uint32_t y)
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{
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if (clicked)
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{
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//Need to check whether or not we've run into the extents of the screen... !!! FIX !!!
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RestoreScreenFromBackstore();
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extents.x = x - offset.x;
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extents.y = y - offset.y;
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SDL_BlitSurface(screen, &extents, backstore, NULL);
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Draw();
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return;
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}
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// Handle the items this window contains...
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for(uint32_t i=0; i<list.size(); i++)
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// Make coords relative to upper right corner of this window...
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list[i]->HandleMouseMove(x - extents.x, y - extents.y);
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}
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void DraggableWindow::HandleMouseButton(uint32_t x, uint32_t y, bool mouseDown)
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{
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clicked = false;
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if (mouseDown && Inside(x, y))
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{
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clicked = true;
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offset.x = x - extents.x;
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offset.y = y - extents.y;
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}
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// Handle the items this window contains...
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for(uint32_t i=0; i<list.size(); i++)
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{
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// Make coords relative to upper right corner of this window...
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list[i]->HandleMouseButton(x - extents.x, y - extents.y, mouseDown);
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if (list[i]->Inside(x - extents.x, y - extents.y))
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clicked = false;
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}
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}
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void DraggableWindow::Draw(void)
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{
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#ifdef USE_COVERAGE_LISTS
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// These are *always* top level and parentless, so no need to traverse up through
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// the parent chain...
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for(std::list<SDL_Rect>::iterator i=coverList.begin(); i!=coverList.end(); i++)
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SDL_FillRect(screen, &(*i), bgColor);
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// Handle the items this window contains...
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for(uint32_t i=0; i<list.size(); i++)
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list[i]->Draw();
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#else
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// These are *always* top level and parentless, so no need to traverse up through
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// the parent chain...
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//Perhaps we can make these parentable, put the parent traversal in the base class?
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//Prolly.
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#ifdef BACKGROUND_IMG_TEST
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SDL_Rect src, dst;
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src.x = 0, src.y = 0, src.w = extents.w, src.h = extents.h;
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dst.x = extents.x, dst.y = extents.y;
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SDL_BlitSurface(img, &src, screen, &dst);
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extern char textChar2e[];
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uint8_t * fontAddr = (uint8_t *)textChar2e + ((128 + 32) * 7 * 8);
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SetNewFont(Font(fontAddr, 7, 8));
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DrawStringOpaque(screen, extents.x + 8, extents.y + 6, 0xFF000000, 0xFFFFFFFF, "Ultima III - Boo");
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DrawStringOpaque(screen, extents.x + 8, extents.y + 14, 0xFF000000, 0xFFFFFFFF, "0123456789012345");
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DrawStringOpaque(screen, extents.x + 8, extents.y + 22, 0xFF000000, 0xFFFFFFFF, "1234567890123456");
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DrawStringOpaque(screen, extents.x + 8, extents.y + 30, 0xFF000000, 0xFFFFFFFF, "2345678901234567");
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RestoreOldFont();
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#else
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SDL_FillRect(screen, &extents, bgColor);
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#endif
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// Handle the items this window contains...
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for(uint32_t i=0; i<list.size(); i++)
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list[i]->Draw();
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#endif
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//Prolly don't need this since the close button will do this for us...
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needToRefreshScreen = true;
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}
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void DraggableWindow::Notify(Element * e)
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{
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if (e == closeButton)
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{
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SDL_Event event;
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event.type = SDL_USEREVENT, event.user.code = WINDOW_CLOSE;
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SDL_PushEvent(&event);
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}
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}
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void DraggableWindow::AddElement(Element * e)
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{
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list.push_back(e);
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}
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