1

#include "stdafx.h"

     2

#include "openttd.h"

     3

#include "debug.h"

     4

#include "map.h"

     5

#include "window.h"

     6

#include "gfx.h"

     7

#include "viewport.h"

     8

#include "console.h"

     9

    10

// delta between mouse cursor and upper left corner of dragged window

    11

static Point _drag_delta;

    12

    13

void HandleButtonClick(Window *w, byte widget)

    14

{

    15

	w->click_state |= (1 << widget);

    16

	w->flags4 |= 5 << WF_TIMEOUT_SHL;

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	InvalidateWidget(w, widget);

    18

}

    19

    20

void DispatchLeftClickEvent(Window *w, int x, int y) {

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	WindowEvent e;

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	const Widget *wi;

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    24

	e.click.pt.x = x;

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	e.click.pt.y = y;

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	e.event = WE_CLICK;

    27

    28

	if (w->desc_flags & WDF_DEF_WIDGET) {

    29

		e.click.widget = GetWidgetFromPos(w, x, y);

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		if (e.click.widget < 0) return; /* exit if clicked outside of widgets */

    31

    32

		wi = &w->widget[e.click.widget];

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    34

		/* don't allow any interaction if the button has been disabled */

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		if (HASBIT(w->disabled_state, e.click.widget))

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			return;

    37

    38

		if (wi->type & 0xE0) {

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			/* special widget handling for buttons*/

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			switch(wi->type) {

    41

			case WWT_IMGBTN  | WWB_PUSHBUTTON: /* WWT_PUSHIMGBTN */

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			case WWT_TEXTBTN | WWB_PUSHBUTTON: /* WWT_PUSHTXTBTN */

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				HandleButtonClick(w, e.click.widget);

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				break;

    45

			case WWT_NODISTXTBTN:

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				break;

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			}

    48

		} else if (wi->type == WWT_SCROLLBAR || wi->type == WWT_SCROLL2BAR || wi->type == WWT_HSCROLLBAR) {

    49

			ScrollbarClickHandler(w, wi, e.click.pt.x, e.click.pt.y);

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		}

    51

    52

		if (w->desc_flags & WDF_STD_BTN) {

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			if (e.click.widget == 0) { /* 'X' */

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				DeleteWindow(w);

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				return;

    56

			}

    57

    58

			if (e.click.widget == 1) { /* 'Title bar' */

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				StartWindowDrag(w); // if not return then w = StartWindowDrag(w); to get correct pointer

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				return;

    61

			}

    62

		}

    63

    64

		if (w->desc_flags & WDF_RESIZABLE && wi->type == WWT_RESIZEBOX) {

    65

			StartWindowSizing(w); // if not return then w = StartWindowSizing(w); to get correct pointer

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			return;

    67

		}

    68

    69

		if (w->desc_flags & WDF_STICKY_BUTTON && wi->type == WWT_STICKYBOX) {

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			TOGGLEBIT(w->click_state, e.click.widget);

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			w->flags4 ^= WF_STICKY;

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			InvalidateWidget(w, e.click.widget);

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			return;

    74

		}

    75

	}

    76

    77

	w->wndproc(w, &e);

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}

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    80

void DispatchRightClickEvent(Window *w, int x, int y) {

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	WindowEvent e;

    82

    83

	/* default tooltips handler? */

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	if (w->desc_flags & WDF_STD_TOOLTIPS) {

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		e.click.widget = GetWidgetFromPos(w, x, y);

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		if (e.click.widget < 0)

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			return; /* exit if clicked outside of widgets */

    88

    89

		if (w->widget[e.click.widget].tooltips != 0) {

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			GuiShowTooltips(w->widget[e.click.widget].tooltips);

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			return;

    92

		}

    93

	}

    94

    95

	e.event = WE_RCLICK;

    96

	e.click.pt.x = x;

    97

	e.click.pt.y = y;

    98

	w->wndproc(w, &e);

    99

}

   100

   108

{

   110

	Scrollbar *sb;

   111

   117

	/* The listbox can only scroll if scrolling was done on the scrollbar itself,

   118

	 * or on the listbox (and the next item is (must be) the scrollbar)

   119

	 * XXX - should be rewritten as a widget-dependent scroller but that's

   120

	 * not happening until someone rewrites the whole widget-code */

   121

	if ((sb = &w->vscroll,  wi1->type == WWT_SCROLLBAR)  || (sb = &w->vscroll2, wi1->type == WWT_SCROLL2BAR)  ||

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			(sb = &w->vscroll2, wi2->type == WWT_SCROLL2BAR) || (sb = &w->vscroll, wi2->type == WWT_SCROLLBAR) ) {

   123

   124

		if (sb->count > sb->cap) {

   125

			int pos = clamp(sb->pos + wheel, 0, sb->count - sb->cap);

   126

			if (pos != sb->pos) {

   127

				sb->pos = pos;

   128

				SetWindowDirty(w);

   129

			}

   130

		}

   131

	}

   132

}

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   134

   135

void DrawOverlappedWindowForAll(int left, int top, int right, int bottom)

   136

{

   137

	Window *w;

   138

	DrawPixelInfo bk;

   139

	_cur_dpi = &bk;

   140

   141

	for(w=_windows; w!=_last_window; w++) {

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		if (right > w->left &&

   143

				bottom > w->top &&

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				left < w->left + w->width &&

   145

				top < w->top + w->height) {

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				DrawOverlappedWindow(w, left, top, right, bottom);

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			}

   148

	}

   149

}

   150

   151

void DrawOverlappedWindow(Window *w, int left, int top, int right, int bottom)

   152

{

   153

	Window *v = w;

   154

	int x;

   155

   156

	while (++v != _last_window) {

   157

		if (right > v->left &&

   158

		 		bottom > v->top &&

   159

				left < v->left + v->width &&

   160

				top < v->top + v->height) {

   161

   162

			if (left < (x=v->left)) {

   163

				DrawOverlappedWindow(w, left, top, x, bottom);

   164

				DrawOverlappedWindow(w, x, top, right, bottom);

   165

				return;

   166

			}

   167

   168

			if (right > (x=v->left + v->width)) {

   169

				DrawOverlappedWindow(w, left, top, x, bottom);

   170

				DrawOverlappedWindow(w, x, top, right, bottom);

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				return;

   172

			}

   173

   174

			if (top < (x=v->top)) {

   175

				DrawOverlappedWindow(w, left, top, right, x);

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				DrawOverlappedWindow(w, left, x, right, bottom);

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				return;

   178

			}

   179

   180

			if (bottom > (x=v->top + v->height)) {

   181

				DrawOverlappedWindow(w, left, top, right, x);

   182

				DrawOverlappedWindow(w, left, x, right, bottom);

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				return;

   184

			}

   185

   186

			return;

   187

		}

   188

	}

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   190

	{

   191

		DrawPixelInfo *dp = _cur_dpi;

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		dp->width = right - left;

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		dp->height = bottom - top;

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		dp->left = left - w->left;

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		dp->top = top - w->top;

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		dp->pitch = _screen.pitch;

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		dp->dst_ptr = _screen.dst_ptr + top * _screen.pitch + left;

   198

		dp->zoom = 0;

   199

		CallWindowEventNP(w, WE_PAINT);

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	}

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}

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   203

void CallWindowEventNP(Window *w, int event)

   204

{

   205

	WindowEvent e;

   206

   207

	e.event = event;

   208

	w->wndproc(w, &e);

   209

}

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   211

void SetWindowDirty(Window *w)

   212

{

   213

	if (w == NULL)

   214

		return;

   215

   216

	SetDirtyBlocks(w->left, w->top, w->left + w->width, w->top + w->height);

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}

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   219

void DeleteWindow(Window *w)

   220

{

   221

	WindowClass wc;

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	WindowNumber wn;

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	ViewPort *vp;

   224

	Window *v;

   225

	int count;

   226

   227

	if (w == NULL)

   228

		return;

   229

   230

	if (_thd.place_mode != 0 && _thd.window_class == w->window_class && _thd.window_number == w->window_number) {

   231

		ResetObjectToPlace();

   232

	}

   233

   234

	wc = w->window_class;

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	wn = w->window_number;

   236

   237

	CallWindowEventNP(w, WE_DESTROY);

   238

   239

	w = FindWindowById(wc, wn);

   240

   241

	vp = w->viewport;

   242

	w->viewport = NULL;

   243

	if (vp != NULL) {

   244

		_active_viewports &= ~(1 << (vp - _viewports));

   245

		vp->width = 0;

   246

	}

   247

   248

	SetWindowDirty(w);

   249

   250

	free(w->widget);

   251

   252

	v = --_last_window;

   253

	count = (byte*)v - (byte*)w;

   254

	memmove(w, w + 1, count);

   255

}

   256

   257

Window *FindWindowById(WindowClass cls, WindowNumber number)

   258

{

   259

	Window *w;

   260

   261

	for(w=_windows; w!=_last_window; w++) {

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		if (w->window_class == cls &&

   263

			  w->window_number == number) {

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			return w;

   265

		}

   266

	}

   267

   268

	return NULL;

   269

}

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   271

void DeleteWindowById(WindowClass cls, WindowNumber number)

   272

{

   273

	DeleteWindow(FindWindowById(cls, number));

   274

}

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   276

void DeleteWindowByClass(WindowClass cls)

   277

{

   278

	Window *w;

   279

	for (w = _windows; w != _last_window;) {

   280

		if (w->window_class == cls) {

   281

			DeleteWindow(w);

   282

			w = _windows;

   283

		} else

   284

			w++;

   285

	}

   286

}

   287

   288

Window *BringWindowToFrontById(WindowClass cls, WindowNumber number)

   289

{

   290

	Window *w = FindWindowById(cls, number);

   291

   292

	if (w != NULL) {

   293

		w->flags4 |= WF_WHITE_BORDER_MASK;

   294

		SetWindowDirty(w);

   295

		w = BringWindowToFront(w);

   296

	}

   297

   298

	return w;

   299

}

   300

   301

static inline bool IsVitalWindow(const Window *w)

   302

{

   303

	WindowClass wc = w->window_class;

   304

	return (wc == WC_MAIN_TOOLBAR || wc == WC_STATUS_BAR || wc == WC_NEWS_WINDOW || wc == WC_SEND_NETWORK_MSG);

   305

}

   306

   307

/** On clicking on a window, make it the frontmost window of all. However

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 * there are certain windows that always need to be on-top; these include

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 * - Toolbar, Statusbar (always on)

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 * - New window, Chatbar (only if open)

   311

 * @param w window that is put into the foreground

   312

 */

   313

Window *BringWindowToFront(Window *w)

   314

{

   315

	Window *v;

   316

	Window temp;

   317

   318

	v = _last_window;

   319

	do {

   320

		if (--v < _windows)

   321

			return w;

   322

	} while (IsVitalWindow(v));

   323

   324

	if (w == v)

   325

		return w;

   326

   327

	assert(w < v);

   328

   329

	temp = *w;

   330

	memmove(w, w + 1, (v - w) * sizeof(Window));

   331

	*v = temp;

   332

   333

	SetWindowDirty(v);

   334

   335

	return v;

   336

}

   337

   338

/** We have run out of windows, so find a suitable candidate for replacement.

   339

 * Keep all important windows intact. These are

   340

 * - Main window (gamefield), Toolbar, Statusbar (always on)

   341

 * - News window, Chatbar (when on)

   342

 * - Any sticked windows since we wanted to keep these

   343

 * @return w pointer to the window that is going to be deleted

   344

 */

   345

static Window *FindDeletableWindow(void)

   346

{

   347

	Window *w;

   348

	for (w = _windows; w < endof(_windows); w++) {

   349

		if (w->window_class != WC_MAIN_WINDOW && !IsVitalWindow(w) && !(w->flags4 & WF_STICKY) )

   350

				return w;

   351

	}

   352

	return NULL;

   353

}

   354

   355

/** A window must be freed, and all are marked as important windows. Ease the

   356

 * restriction a bit by allowing to delete sticky windows. Keep important/vital

   357

 * windows intact (Main window, Toolbar, Statusbar, News Window, Chatbar)

   358

 * @see FindDeletableWindow()

   359

 * @return w Pointer to the window that is being deleted

   360

 */

   361

static Window *ForceFindDeletableWindow(void)

   362

{

   363

	Window *w;

   364

	for (w = _windows;; w++) {

   365

		assert(w < _last_window);

   366

   367

		if (w->window_class != WC_MAIN_WINDOW && !IsVitalWindow(w))

   368

				return w;

   369

	}

   370

}

   371

   372

bool IsWindowOfPrototype(Window *w, const Widget *widget)

   373

{

   374

	return (w->original_widget == widget);

   375

}

   376

   377

/* Copies 'widget' to 'w->widget' to allow for resizable windows */

   378

void AssignWidgetToWindow(Window *w, const Widget *widget)

   379

{

   380

	w->original_widget = widget;

   381

   382

	if (widget != NULL) {

   383

		const Widget *wi = widget;

   384

		uint index = 1;

   385

		while (wi->type != WWT_LAST) {

   386

			wi++;

   387

			index++;

   388

		}

   389

   390

		w->widget = realloc(w->widget, sizeof(Widget) * index);

   391

		memcpy(w->widget, widget, sizeof(Widget) * index);

   392

	} else

   393

		w->widget = NULL;

   394

}

   395

   396

/** Open a new window. If there is no space for a new window, close an open

   397

 * window. Try to avoid stickied windows, but if there is no else, close one of

   398

 * those as well. Then make sure all created windows are below some always-on-top

   399

 * ones. Finally set all variables and call the WE_CREATE event

   400

 * @param x offset in pixels from the left of the screen

   401

 * @param y offset in pixels from the top of the screen

   402

 * @param width width in pixels of the window

   403

 * @param height height in pixels of the window

   404

 * @param *proc @see WindowProc function to call when any messages/updates happen to the window

   405

 * @param cls @see WindowClass class of the window, used for identification and grouping

   406

 * @param *widget @see Widget pointer to the window layout and various elements

   407

 * @return @see Window pointer of the newly created window

   408

 */

   409

Window *AllocateWindow(

   410

							int x, int y, int width, int height,

   411

							WindowProc *proc, WindowClass cls, const Widget *widget)

   412

{

   413

	Window *w = _last_window; // last window keeps track of the highest open window

   414

   415

	// We have run out of windows, close one and use that as the place for our new one

   416

	if (w >= endof(_windows)) {

   417

		w = FindDeletableWindow();

   418

   419

		if (w == NULL) // no window found, force it!

   420

			w = ForceFindDeletableWindow();

   421

   422

		DeleteWindow(w);

   423

		w = _last_window;

   424

	}

   425

   426

	/* XXX - This very strange construction makes sure that the chatbar is always

   427

	 * on top of other windows. Why? It is created as last_window (so, on top).

   428

	 * Any other window will go below toolbar/statusbar/news window, which implicitely

   429

	 * also means it is below the chatbar. Very likely needs heavy improvement

   430

	 * to de-braindeadize */

   431

	if (w != _windows && cls != WC_SEND_NETWORK_MSG) {

   432

		Window *v;

   433

   434

		/* XXX - if not this order (toolbar/statusbar and then news), game would

   435

		 * crash because it will try to copy a negative size for the news-window.

   436

		 * Eg. window was already moved BELOW news (which is below toolbar/statusbar)

   437

		 * and now needs to move below those too. That is a negative move. */

   438

		v = FindWindowById(WC_MAIN_TOOLBAR, 0);

   439

		if (v != NULL) {

   440

			memmove(v+1, v, (byte*)w - (byte*)v);

   441

			w = v;

   442

		}

   443

   444

		v = FindWindowById(WC_STATUS_BAR, 0);

   445

		if (v != NULL) {

   446

			memmove(v+1, v, (byte*)w - (byte*)v);

   447

			w = v;

   448

		}

   449

   450

		v = FindWindowById(WC_NEWS_WINDOW, 0);

   451

		if (v != NULL) {

   452

			memmove(v+1, v, (byte*)w - (byte*)v);

   453

			w = v;

   454

		}

   455

	}

   456

   457

	// Set up window properties

   458

	memset(w, 0, sizeof(Window));

   459

	w->window_class = cls;

   460

	w->flags4 = WF_WHITE_BORDER_MASK; // just opened windows have a white border

   461

	w->caption_color = 0xFF;

   462

	w->left = x;

   463

	w->top = y;

   464

	w->width = width;

   465

	w->height = height;

   466

	w->wndproc = proc;

   467

	AssignWidgetToWindow(w, widget);

   468

	w->resize.width = width;

   469

	w->resize.height = height;

   470

	w->resize.step_width = 1;

   471

	w->resize.step_height = 1;

   472

   473

	_last_window++;

   474

   475

	SetWindowDirty(w);

   476

   477

	CallWindowEventNP(w, WE_CREATE);

   478

   479

	return w;

   480

}

   481

   482

Window *AllocateWindowAutoPlace2(

   483

	WindowClass exist_class,

   484

	WindowNumber exist_num,

   485

	int width,

   486

	int height,

   487

	WindowProc *proc,

   488

	WindowClass cls,

   489

	const Widget *widget)

   490

{

   491

	Window *w;

   492

	int x;

   493

   494

	w = FindWindowById(exist_class, exist_num);

   495

	if (w == NULL || w->left >= (_screen.width-20) || w->left <= -60 || w->top >= (_screen.height-20)) {

   496

		return AllocateWindowAutoPlace(width,height,proc,cls,widget);

   497

	}

   498

   499

	x = w->left;

   500

	if (x > _screen.width - width)

   501

		x = (_screen.width - width) - 20;

   502

   503

	return AllocateWindow(x+10,w->top+10,width,height,proc,cls,widget);

   504

}

   505