client/gui-qt/mapview.h

   1 /**********************************************************************
   2  Freeciv - Copyright (C) 1996 - A Kjeldberg, L Gregersen, P Unold
   3    This program is free software; you can redistribute it and/or modify
   4    it under the terms of the GNU General Public License as published by
   5    the Free Software Foundation; either version 2, or (at your option)
   6    any later version.
   7
   8    This program is distributed in the hope that it will be useful,
   9    but WITHOUT ANY WARRANTY; without even the implied warranty of
  10    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11    GNU General Public License for more details.
  12 ***********************************************************************/
  13
  14 #ifndef FC__MAPVIEW_H
  15 #define FC__MAPVIEW_H
  16
  17 // In this case we have to include fc_config.h from header file.
  18 // Some other headers we include demand that fc_config.h must be
  19 // included also. Usually all source files include fc_config.h, but
  20 // there's moc generated meta_mapview.cpp file which does not.
  21 #ifdef HAVE_CONFIG_H
  22 #include <fc_config.h>
  23 #endif
  24
  25 extern "C" {
  26 #include "mapview_g.h"
  27 }
  28
  29 // gui-qt
  30 #include "fonts.h"
  31
  32 // Qt
  33 #include <QHBoxLayout>
  34 #include <QLabel>
  35 #include <QObject>
  36 #include <QPushButton>
  37 #include <QQueue>
  38 #include <QTimer>
  39 #include <QVariant>
  40 #include <QWidget>
  41
  42 // Forward declarations
  43 class QPixmap;
  44
  45 class minimap_view;
  46
  47 bool is_point_in_area(int x, int y, int px, int py, int pxe, int pye);
  48 void draw_calculated_trade_routes(QPainter *painter);
  49
  50 /**************************************************************************
  51   Struct used for idle callback to execute some callbacks later
  52 **************************************************************************/
  53 struct call_me_back {
  54   void (*callback) (void *data);
  55   void *data;
  56 };
  57
  58 /**************************************************************************
  59   Class to handle idle callbacks
  60 **************************************************************************/
  61 class mr_idle : public QObject
  62 {
  63   Q_OBJECT
  64 public:
  65   mr_idle();
  66   void add_callback(call_me_back* cb);
  67   QQueue<call_me_back*> callback_list;
  68 private slots:
  69   void idling();
  70 private:
  71   QTimer timer;
  72 };
  73
  74 /**************************************************************************
  75   QWidget used for displaying map
  76 **************************************************************************/
  77 class map_view : public QWidget
  78 {
  79   Q_OBJECT
  80   void shortcut_pressed(int key);
  81   void shortcut_released(Qt::MouseButton mb);
  82 public:
  83   map_view();
  84   void paint(QPainter *painter, QPaintEvent *event);
  85   void find_place(int pos_x, int pos_y, int &w, int &h, int wdth, int hght,
  86                   int recursive_nr);
  87   void resume_searching(int pos_x,int pos_y,int &w, int &h,
  88                         int wdtht, int hght, int recursive_nr);
  89   void update_cursor(enum cursor_type);
  90
  91 protected:
  92   void paintEvent(QPaintEvent *event);
  93   void keyPressEvent(QKeyEvent *event);
  94   void mousePressEvent(QMouseEvent *event);
  95   void mouseReleaseEvent(QMouseEvent *event);
  96   void mouseMoveEvent(QMouseEvent *event);
  97   void focusOutEvent(QFocusEvent *event);
  98   void leaveEvent(QEvent *event);
  99 private slots:
 100   void timer_event();
 101 private:
 102   void update_font(const QString &name, const QFont &font);
 103
 104   int cursor_frame;
 105   int cursor;
 106
 107 };
 108
 109 /**************************************************************************
 110   Information label about clicked tile
 111 **************************************************************************/
 112 class info_tile: public QLabel
 113 {
 114   Q_OBJECT
 115   QFont info_font;
 116 public:
 117   info_tile(struct tile *ptile, QWidget *parent = 0);
 118   struct tile *itile;
 119 protected:
 120   void paintEvent(QPaintEvent *event);
 121   void paint(QPainter *painter, QPaintEvent *event);
 122 private:
 123   QStringList str_list;
 124   void calc_size();
 125   void update_font(const QString &name, const QFont &font);
 126 };
 127
 128 /**************************************************************************
 129   Widget allowing resizing other widgets
 130 **************************************************************************/
 131 class resize_widget : public QLabel
 132 {
 133   Q_OBJECT
 134 public:
 135   resize_widget(QWidget* parent);
 136   void put_to_corner();
 137
 138 protected:
 139   void mouseMoveEvent(QMouseEvent *event);
 140   void mousePressEvent(QMouseEvent *event);
 141 private:
 142   QPoint point;
 143 };
 144
 145
 146 /**************************************************************************
 147   Widget allowing moving other widgets
 148 **************************************************************************/
 149 class move_widget : public QLabel
 150 {
 151   Q_OBJECT
 152 public:
 153   move_widget(QWidget* parent);
 154   void put_to_corner();
 155
 156 protected:
 157   void mouseMoveEvent(QMouseEvent *event);
 158   void mousePressEvent(QMouseEvent *event);
 159 private:
 160   QPoint point;
 161 };
 162
 163 /**************************************************************************
 164   Abstract class for widgets wanting to do custom action
 165   when closing widgets is called (eg. update menu)
 166 **************************************************************************/
 167 class fcwidget : public QFrame
 168 {
 169   Q_OBJECT
 170 public:
 171   virtual void update_menu() = 0;
 172   bool was_destroyed;
 173 };
 174
 175 /**************************************************************************
 176   Widget allowing closing other widgets
 177 **************************************************************************/
 178 class close_widget : public QLabel
 179 {
 180   Q_OBJECT
 181 public:
 182   close_widget(QWidget *parent);
 183   void put_to_corner();
 184 protected:
 185   void mousePressEvent(QMouseEvent *event);
 186   void notify_parent();
 187 };
 188
 189 /**************************************************************************
 190   QLabel used for displaying overview (minimap)
 191 **************************************************************************/
 192 class minimap_view: public fcwidget
 193 {
 194   Q_OBJECT
 195 public:
 196   minimap_view(QWidget *parent);
 197   ~minimap_view();
 198   void paint(QPainter *painter, QPaintEvent *event);
 199   virtual void update_menu();
 200   void update_image();
 201   void reset();
 202
 203 protected:
 204   void paintEvent(QPaintEvent *event);
 205   void resizeEvent(QResizeEvent *event);
 206   void mousePressEvent(QMouseEvent *event);
 207   void mouseMoveEvent(QMouseEvent *event);
 208   void mouseReleaseEvent(QMouseEvent *event);
 209   void wheelEvent(QWheelEvent *event);
 210   void moveEvent(QMoveEvent *event);
 211   void showEvent(QShowEvent *event);
 212
 213 private slots:
 214   void zoom_in();
 215   void zoom_out();
 216
 217 private:
 218   void draw_viewport(QPainter *painter);
 219   void scale(double factor);
 220   void scale_point(int &x, int &y);
 221   void unscale_point(int &x, int &y);
 222   double scale_factor;
 223   float w_ratio, h_ratio;
 224   QBrush background;
 225   QPixmap *pix;
 226   QPoint cursor;
 227   QPoint position;
 228   resize_widget *rw;
 229 };
 230
 231
 232 void mapview_freeze(void);
 233 void mapview_thaw(void);
 234 bool mapview_is_frozen(void);
 235 void pixmap_put_overlay_tile(int canvas_x, int  canvas_y,
 236                              struct sprite *ssprite);
 237
 238 #endif /* FC__MAPVIEW_H */