1

#include "stdafx.h"

     2

#include "openttd.h"

     3

#include "debug.h"

     4

#include "map.h"

     5

#include "player.h"

     6

#include "window.h"

     7

#include "gfx.h"

     8

#include "viewport.h"

     9

#include "console.h"

    11

    12

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

    13

static Point _drag_delta;

    14

    15

void HandleButtonClick(Window *w, byte widget)

    16

{

    17

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

    18

	w->flags4 |= 5 << WF_TIMEOUT_SHL;

    19

	InvalidateWidget(w, widget);

    20

}

    21

    22

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

    23

	WindowEvent e;

    24

	const Widget *wi;

    25

    26

	e.click.pt.x = x;

    27

	e.click.pt.y = y;

    28

	e.event = WE_CLICK;

    29

    30

	if (w->desc_flags & WDF_DEF_WIDGET) {

    31

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

    32

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

    33

    34

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

    35

    36

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

    37

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

    38

			return;

    39

    40

		if (wi->type & 0xE0) {

    41

			/* special widget handling for buttons*/

    42

			switch(wi->type) {

    43

			case WWT_IMGBTN  | WWB_PUSHBUTTON: /* WWT_PUSHIMGBTN */

    44

			case WWT_TEXTBTN | WWB_PUSHBUTTON: /* WWT_PUSHTXTBTN */

    45

				HandleButtonClick(w, e.click.widget);

    46

				break;

    47

			case WWT_NODISTXTBTN:

    48

				break;

    49

			}

    50

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

    51

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

    52

		}

    53

    54

		if (w->desc_flags & WDF_STD_BTN) {

    55

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

    56

				DeleteWindow(w);

    57

				return;

    58

			}

    59

    60

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

    61

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

    62

				return;

    63

			}

    64

		}

    65

    66

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

    67

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

    68

			return;

    69

		}

    70

    71

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

    72

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

    73

			w->flags4 ^= WF_STICKY;

    74

			InvalidateWidget(w, e.click.widget);

    75

			return;

    76

		}

    77

	}

    78

    79

	w->wndproc(w, &e);

    80

}

    81

    82

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

    83

	WindowEvent e;

    84

    85

	/* default tooltips handler? */

    86

	if (w->desc_flags & WDF_STD_TOOLTIPS) {

    87

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

    88

		if (e.click.widget < 0)

    89

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

    90

    91

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

    92

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

    93

			return;

    94

		}

    95

	}

    96

    97

	e.event = WE_RCLICK;

    98

	e.click.pt.x = x;

    99

	e.click.pt.y = y;

   100

	w->wndproc(w, &e);

   101

}

   102

   103

/** Dispatch the mousewheel-action to the window which will scroll any

   104

 * compatible scrollbars if the mouse is pointed over the bar or its contents

   105

 * @param *w Window

   106

 * @param widget the widget where the scrollwheel was used

   107

 * @param wheel scroll up or down

   108

 */

   109

void DispatchMouseWheelEvent(Window *w, int widget, int wheel)

   110

{

   111

	const Widget *wi1, *wi2;

   112

	Scrollbar *sb;

   113

   114

	if (widget < 0) return;

   115

   116

	wi1 = &w->widget[widget];

   117

	wi2 = &w->widget[widget + 1];

   118

   119

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

   120

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

   121

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

   122

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

   123

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

   124

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

   125

   126

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

   127

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

   128

			if (pos != sb->pos) {

   129

				sb->pos = pos;

   130

				SetWindowDirty(w);

   131

			}

   132

		}

   133

	}

   134

}

   135

   136

   137

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

   138

{

   139

	Window *w;

   140

	DrawPixelInfo bk;

   141

	_cur_dpi = &bk;

   142

   143

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

   144

		if (right > w->left &&

   145

				bottom > w->top &&

   146

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

   147

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

   148

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

   149

			}

   150

	}

   151

}

   152

   153

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

   154

{

   155

	Window *v = w;

   156

	int x;

   157

   158

	while (++v != _last_window) {

   159

		if (right > v->left &&

   160

				bottom > v->top &&

   161

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

   162

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

   163

   164

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

   165

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

   166

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

   167

				return;

   168

			}

   169

   170

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

   171

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

   172

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

   173

				return;

   174

			}

   175

   176

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

   177

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

   178

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

   179

				return;

   180

			}

   181

   182

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

   183

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

   184

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

   185

				return;

   186

			}

   187

   188

			return;

   189

		}

   190

	}

   191

   192

	{

   193

		DrawPixelInfo *dp = _cur_dpi;

   194

		dp->width = right - left;

   195

		dp->height = bottom - top;

   196

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

   197

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

   198

		dp->pitch = _screen.pitch;

   199

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

   200

		dp->zoom = 0;

   201

		CallWindowEventNP(w, WE_PAINT);

   202

	}

   203

}

   204

   205

void CallWindowEventNP(Window *w, int event)

   206

{

   207

	WindowEvent e;

   208

   209

	e.event = event;

   210

	w->wndproc(w, &e);

   211

}

   212

   213

void SetWindowDirty(Window *w)

   214

{

   215

	if (w == NULL)

   216

		return;

   217

   218

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

   219

}

   220

   221

void DeleteWindow(Window *w)

   222

{

   223

	WindowClass wc;

   224

	WindowNumber wn;

   225

	ViewPort *vp;

   226

	Window *v;

   227

	int count;

   228

   229

	if (w == NULL)

   230

		return;

   231

   232

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

   233

		ResetObjectToPlace();

   234

	}

   235

   236

	wc = w->window_class;

   237

	wn = w->window_number;

   238

   239

	CallWindowEventNP(w, WE_DESTROY);

   240

   241

	w = FindWindowById(wc, wn);

   242

   243

	vp = w->viewport;

   244

	w->viewport = NULL;

   245

	if (vp != NULL) {

   246

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

   247

		vp->width = 0;

   248

	}

   249

   250

	SetWindowDirty(w);

   251

   252

	free(w->widget);

   253

   254

	v = --_last_window;

   255

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

   256

	memmove(w, w + 1, count);

   257

}

   258

   259

Window *FindWindowById(WindowClass cls, WindowNumber number)

   260

{

   261

	Window *w;

   262

   263

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

   264

		if (w->window_class == cls &&

   265

			  w->window_number == number) {

   266

			return w;

   267

		}

   268

	}

   269

   270

	return NULL;

   271

}

   272

   273

void DeleteWindowById(WindowClass cls, WindowNumber number)

   274

{

   275

	DeleteWindow(FindWindowById(cls, number));

   276

}

   277

   278

void DeleteWindowByClass(WindowClass cls)

   279

{

   280

	Window *w;

   281

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

   282

		if (w->window_class == cls) {

   283

			DeleteWindow(w);

   284

			w = _windows;

   285

		} else

   286

			w++;

   287

	}

   288

}

   289

   290

Window *BringWindowToFrontById(WindowClass cls, WindowNumber number)

   291

{

   292

	Window *w = FindWindowById(cls, number);

   293

   294

	if (w != NULL) {

   295

		w->flags4 |= WF_WHITE_BORDER_MASK;

   296

		SetWindowDirty(w);

   297

		w = BringWindowToFront(w);

   298

	}

   299

   300

	return w;

   301

}

   302

   303

static inline bool IsVitalWindow(const Window *w)

   304

{

   305

	WindowClass wc = w->window_class;

   306

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

   307

}

   308

   309

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

   310

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

   311

 * - Toolbar, Statusbar (always on)

   312

 * - New window, Chatbar (only if open)

   313

 * @param w window that is put into the foreground

   314

 */

   315

Window *BringWindowToFront(Window *w)

   316

{

   317

	Window *v;

   318

	Window temp;

   319

   320

	v = _last_window;

   321

	do {

   322

		if (--v < _windows)

   323

			return w;

   324

	} while (IsVitalWindow(v));

   325

   326

	if (w == v)

   327

		return w;

   328

   329

	assert(w < v);

   330

   331

	temp = *w;

   332

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

   333

	*v = temp;

   334

   335

	SetWindowDirty(v);

   336

   337

	return v;

   338

}

   339

   340

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

   341

 * Keep all important windows intact. These are

   342

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

   343

 * - News window, Chatbar (when on)

   344

 * - Any sticked windows since we wanted to keep these

   345

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

   346

 */

   347

static Window *FindDeletableWindow(void)

   348

{

   349

	Window *w;

   350

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

   351

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

   352

				return w;

   353

	}

   354

	return NULL;

   355

}

   356

   357

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

   358

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

   359

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

   360

 * @see FindDeletableWindow()

   361

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

   362

 */

   363

static Window *ForceFindDeletableWindow(void)

   364

{

   365

	Window *w;

   366

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

   367

		assert(w < _last_window);

   368

   369

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

   370

				return w;

   371

	}

   372

}

   373

   374

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

   375

{

   376

	return (w->original_widget == widget);

   377

}

   378

   379

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

   380

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

   381

{

   382

	w->original_widget = widget;

   383

   384

	if (widget != NULL) {

   385

		const Widget *wi = widget;

   386

		uint index = 1;

   387

		while (wi->type != WWT_LAST) {

   388

			wi++;

   389

			index++;

   390

		}

   391

   392

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

   393

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

   394

	} else

   395

		w->widget = NULL;

   396

}

   397

   398

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

   399

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

   400

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

   401

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

   402

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

   403

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

   404

 * @param width width in pixels of the window

   405

 * @param height height in pixels of the window

   406

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

   407

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

   408

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

   409

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

   410

 */

   411

Window *AllocateWindow(

   412

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

   413

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

   414

{

   415

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

   416

   417

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

   418

	if (w >= endof(_windows)) {

   419

		w = FindDeletableWindow();

   420

   421

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

   422

			w = ForceFindDeletableWindow();

   423

   424

		DeleteWindow(w);

   425

		w = _last_window;

   426

	}

   427

   428

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

   429

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

   430

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

   431

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

   432

	 * to de-braindeadize */

   433

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

   434

		Window *v;

   435

   436

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

   437

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

   438

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

   439

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

   440

		v = FindWindowById(WC_MAIN_TOOLBAR, 0);

   441

		if (v != NULL) {

   442

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

   443

			w = v;

   444

		}

   445

   446

		v = FindWindowById(WC_STATUS_BAR, 0);

   447

		if (v != NULL) {

   448

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

   449

			w = v;

   450

		}

   451

   452

		v = FindWindowById(WC_NEWS_WINDOW, 0);

   453

		if (v != NULL) {

   454

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

   455

			w = v;

   456

		}

   457

	}

   458

   459

	// Set up window properties

   460

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

   461

	w->window_class = cls;

   462

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

   463

	w->caption_color = 0xFF;

   464

	w->left = x;

   465

	w->top = y;

   466

	w->width = width;

   467

	w->height = height;

   468

	w->wndproc = proc;

   469

	AssignWidgetToWindow(w, widget);

   470

	w->resize.width = width;

   471

	w->resize.height = height;

   472

	w->resize.step_width = 1;

   473

	w->resize.step_height = 1;

   474

   475

	_last_window++;

   476

   477

	SetWindowDirty(w);

   478

   479

	CallWindowEventNP(w, WE_CREATE);

   480

   481

	return w;

   482

}

   483

   484

Window *AllocateWindowAutoPlace2(

   485

	WindowClass exist_class,

   486

	WindowNumber exist_num,

   487

	int width,

   488

	int height,

   489

	WindowProc *proc,

   490

	WindowClass cls,

   491

	const Widget *widget)

   492

{

   493

	Window *w;

   494

	int x;

   495

   496

	w = FindWindowById(exist_class, exist_num);

   497

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

   498

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

   499

	}

   500

   501

	x = w->left;

   502

	if (x > _screen.width - width)

   503

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

   504