1 | #ifndef __GTK_PAPER_TAPE_ZOOM__ |
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2 | #define __GTK_PAPER_TAPE_ZOOM__ |
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3 | |
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4 | #include <gtkmm/dialog.h> |
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5 | #include <gtkmm/actiongroup.h> |
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6 | #include <gtkmm/action.h> |
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7 | #include <gtkmm/spinbutton.h> |
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8 | |
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9 | #include <map> |
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10 | |
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11 | #include <gtk/gtk.h> |
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12 | |
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13 | |
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14 | namespace Gtk |
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15 | { class PaperTapeZoom; } |
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16 | #include "gtkpapertapeview.h" |
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17 | |
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18 | namespace Gtk { |
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19 | |
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20 | |
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21 | |
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22 | /*enum PaperTapeRotation { |
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23 | ROTATE_90_CW, |
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24 | ROTATE_90_CCW, |
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25 | NO_ROTATION |
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26 | }*/ |
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27 | |
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28 | enum PaperTapeFlip { |
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29 | FLIP_HOR, |
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30 | FLIP_VER, |
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31 | NO_FLIP |
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32 | }; |
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33 | |
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34 | enum PaperTapeAutoZoomType { |
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35 | ZOOM_LOCHSTREIFEN_WIDTH, |
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36 | ZOOM_LOCHSTREIFEN_LENGTH |
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37 | }; |
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38 | |
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39 | class PaperTapeZoom : public Cairo::Matrix { |
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40 | /** |
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41 | * The default matrix. This is the return point whenever |
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42 | * you think your matrix is bad, and you want to reset() it. |
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43 | * Change it with set_default() or via the constructor arguments. |
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44 | * Normally this should be something like 1:1 "original" view |
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45 | * |
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46 | **/ |
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47 | Cairo::Matrix default_matrix; |
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48 | |
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49 | /** |
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50 | * For automatical settings |
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51 | * |
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52 | **/ |
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53 | double rotation; |
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54 | PaperTapeFlip flip; |
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55 | double zoom_factor; |
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56 | |
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57 | /** |
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58 | * Switch: Manual settings (raw matrix editing) or |
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59 | * automatical matrix generation. |
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60 | **/ |
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61 | bool manually; |
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62 | |
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63 | void update_dialog_on_zoom_changes(); |
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64 | void on_toggle_manually(CheckButton* manually_toggle); |
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65 | void on_change_field(double* field); |
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66 | void calc_matrix(); |
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67 | |
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68 | Dialog* matrix_dialog; |
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69 | std::map<double*, SpinButton*> matrix_entries; |
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70 | |
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71 | // auto zoom: |
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72 | bool auto_zoom_enabled; |
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73 | sigc::connection auto_zoom_resize_con; |
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74 | bool on_auto_zoom_resize(GdkEventConfigure* event); |
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75 | |
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76 | static GtkActionEntry ui_action_entries[]; |
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77 | |
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78 | /// When the zoom has changed somehow, this is emitted (and recieved ;-)) |
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79 | sigc::signal<void> zoom_changed; |
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80 | public: |
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81 | PaperTapeZoom(double default_rotation = 0.0, double default_zoom_factor = 1.0, PaperTapeFlip default_flip = NO_FLIP); |
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82 | |
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83 | void set_default(double rotation = 0.0, double zoom_factor = 1.0, PaperTapeFlip flip = NO_FLIP); |
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84 | |
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85 | /** |
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86 | * Resets the matrix to the default. This keeps the manual control, |
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87 | * doen't set it back to automatic control. |
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88 | **/ |
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89 | void reset(); |
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90 | |
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91 | void set_rotate(double radians, bool relative); |
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92 | void set_zoom(double zoom_factor, bool relative); |
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93 | void set_flip(PaperTapeFlip flip, bool relative); |
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94 | |
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95 | void set_auto_zoom(PaperTapeView& view, PaperTapeAutoZoomType type); |
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96 | void disable_auto_zoom(); |
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97 | |
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98 | bool is_controlled_manually() { return manually; } |
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99 | void show_dialog(); |
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100 | |
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101 | Glib::RefPtr<ActionGroup> get_action_group(); |
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102 | void transform_action(const Glib::RefPtr<Action>& action); |
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103 | |
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104 | sigc::signal<void> signal_changed() { |
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105 | return zoom_changed; |
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106 | } |
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107 | |
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108 | PaperTapeZoom& operator=(const Cairo::Matrix& right) { |
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109 | // self-assignment makes not much sense ;-) |
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110 | if(this == &right) return *this; |
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111 | this->xx = right.xx; this->xy = right.xy; this->x0 = right.x0; |
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112 | this->yx = right.yx; this->yy = right.yy; this->y0 = right.y0; |
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113 | return *this; |
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114 | } |
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115 | |
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116 | }; // class |
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117 | |
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118 | inline std::ostream& operator<<(std::ostream& out, const Cairo::Matrix& s) { |
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119 | out << "Cairo Matrix:\n"; |
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120 | out << "[ xx,xy,x0 = " << s.xx << ", " << s.xy << " , " << s.x0 << "\n"; |
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121 | out << " yx,yy,y0 = " << s.yx << ", " << s.yy << " , " << s.y0 << " ]\n"; |
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122 | return out; |
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123 | } |
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124 | |
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125 | }; // namespace Gtk |
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126 | |
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127 | #endif // __GTK_PAPER_TAPE_ZOOM__ |
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