implement the viewport window

data/language/english_uk.txt

@@ -2782,8 +2782,8 @@ STR_2775    :Fullscreen (desktop)
 STR_2776    :Language
 STR_2777    :{MOVE_X}{SMALLFONT}{STRING}
 STR_2778    :{RIGHTGUILLEMET}{MOVE_X}{SMALLFONT}{STRING}
+STR_2779    :Viewport #{COMMA16}
 # End of new strings
-STR_2779    :???
 STR_2780    :???
 STR_2781    :{STRINGID}:{MOVE_X}{195}{STRINGID}{STRINGID}
 STR_2782    :SHIFT + 

projects/openrct2.vcxproj

@@ -135,6 +135,7 @@
     <ClCompile Include="..\src\windows\track_list.c" />
     <ClCompile Include="..\src\windows\track_manage.c" />
     <ClCompile Include="..\src\windows\track_place.c" />
+    <ClCompile Include="..\src\windows\viewport.c" />
     <ClCompile Include="..\src\windows\water.c" />
     <ClCompile Include="..\src\world\banner.c" />
     <ClCompile Include="..\src\world\climate.c" />

projects/openrct2.vcxproj.filters

@@ -381,16 +381,12 @@
     <ClCompile Include="..\lib\lodepng\lodepng.c" />
     <ClCompile Include="..\lib\lodepng\lodepng.c" />
     <ClCompile Include="..\lib\lodepng\lodepng.c" />
-    <ClCompile Include="..\lib\lodepng\lodepng.c" />
     <ClCompile Include="..\src\drawing\rain.c">
       <Filter>Source\Drawing</Filter>
     </ClCompile>
     <ClCompile Include="..\lib\lodepng\lodepng.c" />
     <ClCompile Include="..\lib\lodepng\lodepng.c" />
     <ClCompile Include="..\lib\lodepng\lodepng.c" />
-    <ClCompile Include="..\lib\libspeex\resample.c">
-      <Filter>Libraries\libspeex</Filter>
-    </ClCompile>
     <ClCompile Include="..\lib\lodepng\lodepng.c" />
     <ClCompile Include="..\lib\lodepng\lodepng.c" />
     <ClCompile Include="..\lib\lodepng\lodepng.c" />
@@ -422,6 +418,10 @@
     <ClCompile Include="..\src\world\banner.c">
       <Filter>Source\World</Filter>
     </ClCompile>
+    <ClCompile Include="..\lib\libspeex\resample.c;..\lib\lodepng\lodepng.c" />
+    <ClCompile Include="..\src\windows\viewport.c">
+      <Filter>Source\Windows</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\src\management\award.h">

src/interface/window.h

@@ -390,7 +390,8 @@ enum {
 	WC_CLEAR_SCENERY = 50,
 	WC_MANAGE_TRACK_DESIGN = 89,
 	WC_CHEATS = 110,
-	WC_RESEARCH = 111
+	WC_RESEARCH = 111,
+	WC_VIEWPORT = 112
 } WINDOW_CLASS;
 
 enum PROMPT_MODE {
@@ -499,6 +500,7 @@ void window_scenery_open();
 void window_music_credits_open();
 void window_publisher_credits_open();
 void window_track_manage_open();
+void window_viewport_open();
 
 void window_guest_list_init_vars_a();
 void window_guest_list_init_vars_b();

src/windows/game_top_toolbar.c

@@ -205,7 +205,9 @@ static void window_game_top_toolbar_mouseup()
 		// button in the game. Use "git update-index --skip-worktree
 		// src/window_game_top_toolbar" to avoid committing these changes to
 		// version control.
-		window_cheats_open();
+		// window_cheats_open();
+
+		window_viewport_open();
 		break;
 
 	case WIDX_ZOOM_OUT:

src/windows/viewport.c

@@ -0,0 +1,254 @@
+/*****************************************************************************
+ * Copyright (c) 2014 Ted John
+ * OpenRCT2, an open source clone of Roller Coaster Tycoon 2.
+ *
+ * This file is part of OpenRCT2.
+ *
+ * OpenRCT2 is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ 
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *****************************************************************************/
+
+#include <string.h>
+#include "../addresses.h"
+#include "../audio/audio.h"
+#include "../game.h"
+#include "../world/map.h"
+#include "../localisation/localisation.h"
+#include "../sprites.h"
+#include "../interface/viewport.h"
+#include "../interface/widget.h"
+#include "../interface/window.h"
+#include "dropdown.h"
+
+#define INITIAL_WIDTH 500
+#define INITIAL_HEIGHT 350
+
+enum {
+	WIDX_BACKGROUND,
+	WIDX_TITLE,
+	WIDX_CLOSE,
+	WIDX_PAGE_BACKGROUND,
+	WIDX_VIEWPORT,
+	WIDX_ZOOM_IN,
+	WIDX_ZOOM_OUT
+};
+
+static rct_widget window_viewport_widgets[] = {
+	{ WWT_FRAME,			0,	0,	0,	0,	0,	0xFFFFFFFF,		STR_NONE				},	// panel / background
+	{ WWT_CAPTION,			0,	1,	0,	1,	14,	2779,			STR_WINDOW_TITLE_TIP	},	// title bar
+	{ WWT_CLOSEBOX,			0,	0,	0,	2,	13,	0x338,			STR_CLOSE_WINDOW_TIP	},	// close x button
+	{ WWT_RESIZE,			1,	0,	0,	14,	0,	0xFFFFFFFF,		STR_NONE				},	// resize
+	{ WWT_VIEWPORT,			0,	3,	0,	17,	0,	0xFFFFFFFF,		STR_NONE				},	// viewport
+
+	{ WWT_FLATBTN,			0,	0,	0,	17,	40,	0xFFFFFFFF,		STR_ZOOM_IN_TIP			},	// zoom in
+	{ WWT_FLATBTN,			0,	0,	0,	41,	64,	0xFFFFFFFF,		STR_ZOOM_OUT_TIP		},	// zoom out
+	{ WIDGETS_END },
+};
+
+static void window_viewport_empty(){}
+static void window_viewport_mouseup();
+static void window_viewport_resize();
+static void window_viewport_update(rct_window *w);
+static void window_viewport_invalidate();
+static void window_viewport_paint();
+
+void* window_viewport_events[] = {
+	window_viewport_empty,
+	window_viewport_mouseup,
+	window_viewport_resize,
+	window_viewport_empty,
+	window_viewport_empty,
+	window_viewport_empty,
+	window_viewport_update,
+	window_viewport_empty,
+	window_viewport_empty,
+	window_viewport_empty,
+	window_viewport_empty,
+	window_viewport_empty,
+	window_viewport_empty,
+	window_viewport_empty,
+	window_viewport_empty,
+	window_viewport_empty,
+	window_viewport_empty,
+	window_viewport_empty,
+	window_viewport_empty,
+	window_viewport_empty,
+	window_viewport_empty,
+	window_viewport_empty,
+	window_viewport_empty,
+	window_viewport_empty,
+	window_viewport_empty,
+	window_viewport_invalidate,
+	window_viewport_paint,
+	window_viewport_empty
+};
+
+static int _viewportNumber = 1;
+
+/**
+ * Creates a custom viewport window.
+ */
+void window_viewport_open()
+{
+	rct_window *w, *mainWindow;
+	rct_viewport *mainViewport;
+	int x, y, rotation;
+
+	w = window_create_auto_pos(
+		INITIAL_WIDTH, INITIAL_HEIGHT,
+		(uint32*)window_viewport_events,
+		WC_VIEWPORT,
+		WF_RESIZABLE
+	);
+	w->widgets = window_viewport_widgets;
+	w->enabled_widgets =
+		(1 << WIDX_CLOSE) |
+		(1 << WIDX_ZOOM_IN) |
+		(1 << WIDX_ZOOM_OUT);
+	w->number = _viewportNumber++;
+	w->colours[0] = 24;
+	w->colours[1] = 24;
+	w->colours[2] = 24;
+
+	rotation = RCT2_GLOBAL(RCT2_ADDRESS_CURRENT_ROTATION, sint32);
+
+	// Create viewport
+	viewport_create(w, w->x, w->y, w->width, w->height, 0, 128 * 32, 128 * 32, 0, 1, -1);
+	mainWindow = window_get_main();
+	if (mainWindow != NULL) {
+		mainViewport = mainWindow->viewport;
+		x = mainViewport->view_x + (mainViewport->view_width / 2);
+		y = mainViewport->view_y + (mainViewport->view_height / 2);
+		w->saved_view_x = x - (w->viewport->view_width / 2);
+		w->saved_view_y = y - (w->viewport->view_height / 2);
+	}
+
+	w->viewport->flags |= VIEWPORT_FLAG_SOUND_ON;
+}
+
+static void window_viewport_anchor_border_widgets(rct_window *w)
+{
+	w->widgets[WIDX_BACKGROUND].right = w->width - 1;
+	w->widgets[WIDX_BACKGROUND].bottom = w->height - 1;
+	w->widgets[WIDX_PAGE_BACKGROUND].right = w->width - 1;
+	w->widgets[WIDX_PAGE_BACKGROUND].bottom = w->height - 1;
+	w->widgets[WIDX_TITLE].right = w->width - 2;
+	w->widgets[WIDX_CLOSE].left = w->width - 13;
+	w->widgets[WIDX_CLOSE].right = w->width - 3;
+}
+
+static void window_viewport_mouseup()
+{
+	short widgetIndex;
+	rct_window *w;
+
+	window_widget_get_registers(w, widgetIndex);
+
+	switch (widgetIndex) {
+	case WIDX_CLOSE:
+		window_close(w);
+		break;
+	case WIDX_ZOOM_IN:
+		if (w->viewport != NULL && w->viewport->zoom > 0) {
+			w->viewport->zoom--;
+			window_invalidate(w);
+		}
+		break;
+	case WIDX_ZOOM_OUT:
+		if (w->viewport != NULL && w->viewport->zoom < 3) {
+			w->viewport->zoom++;
+			window_invalidate(w);
+		}
+		break;
+	}
+}
+
+static void window_viewport_resize()
+{
+	rct_window *w;
+
+	window_get_register(w);
+
+	w->flags |= WF_RESIZABLE;
+	window_set_resize(w, 200, 200, 2000, 2000);
+}
+
+static void window_viewport_update(rct_window *w)
+{
+	rct_window *mainWindow;
+
+	mainWindow = window_get_main();
+	if (mainWindow == NULL)
+		return;
+
+	if (w->viewport->flags != mainWindow->viewport->flags) {
+		w->viewport->flags = mainWindow->viewport->flags;
+		window_invalidate(w);
+	}
+
+	// Not sure how to invalidate part of the viewport that has changed, this will have to do for now
+	widget_invalidate(WC_VIEWPORT, w->number, WIDX_VIEWPORT);
+}
+
+static void window_viewport_invalidate()
+{
+	rct_window *w;
+	rct_widget *viewportWidget;
+	rct_viewport *viewport;
+	int i;
+
+	window_get_register(w);
+
+	viewportWidget = &window_viewport_widgets[WIDX_VIEWPORT];
+	viewport = w->viewport;
+
+	// Anchor widgets
+	window_viewport_anchor_border_widgets(w);
+	viewportWidget->right = w->width - 26;
+	viewportWidget->bottom = w->height - 3;
+	for (i = WIDX_ZOOM_IN; i <= WIDX_ZOOM_OUT; i++) {
+		window_viewport_widgets[i].left = w->width - 25;
+		window_viewport_widgets[i].right = w->width - 2;
+	}
+
+	// Set title
+	RCT2_GLOBAL(0x013CE952 + 0, uint32) = w->number;
+
+	// Set disabled widgets
+	w->disabled_widgets = 0;
+	if (viewport->zoom == 0)
+		w->disabled_widgets |= 1 << WIDX_ZOOM_IN;
+	if (viewport->zoom >= 3)
+		w->disabled_widgets |= 1 << WIDX_ZOOM_OUT;
+	
+	viewport->x = w->x + viewportWidget->left;
+	viewport->y = w->y + viewportWidget->top;
+	viewport->width = viewportWidget->right - viewportWidget->left;
+	viewport->height = viewportWidget->bottom - viewportWidget->top;
+	viewport->view_width = viewport->width << viewport->zoom;
+	viewport->view_height = viewport->height << viewport->zoom;
+}
+
+static void window_viewport_paint()
+{
+	rct_window *w;
+	rct_drawpixelinfo *dpi;
+
+	window_paint_get_registers(w, dpi);
+
+	window_draw_widgets(w, dpi);
+
+	// Draw viewport
+	if (w->viewport != NULL)
+		window_draw_viewport(dpi, w);
+}