Buttons explanations » History » Version 9
iri, 02/23/2011 11:25 AM
| 1 | 1 | iri | h1. Buttons explanations |
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| 2 | |||
| 3 | To create any button, you should use [[Create|_gtkButtonNew]] |
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| 4 | |||
| 5 | How to create them ? |
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| 6 | |||
| 7 | * A simple button with a label : |
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| 8 | |||
| 9 | 2 | iri | <pre><code class="php"> |
| 10 | 1 | iri | typeof win = ObjGtkWidget;; |
| 11 | typeof button = ObjGtkWidget;; |
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| 12 | |||
| 13 | fun CBbutton (obj, uparam)= |
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| 14 | _fooS "The button has been clicked"; |
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| 15 | _fooS strcat "user param is : " uparam; |
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| 16 | 0;; |
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| 17 | |||
| 18 | fun main ()= |
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| 19 | _showconsole; |
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| 20 | |||
| 21 | /* Create a window ...*/ |
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| 22 | set win = ... |
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| 23 | /* Create the button : |
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| 24 | use _gtkButtonNew function with : |
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| 25 | - the channel |
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| 26 | - the parent (here a window) |
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| 27 | - the label |
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| 28 | - the flag. For a simple button, use SCOL_GTK_BUTTON_LABEL |
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| 29 | - no supplemental parameter needed, so, nil it's ok */ |
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| 30 | set button = _gtkButtonNew _channel win "My button" SCOL_GTK_BUTTON_LABEL nil; |
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| 31 | /* Define the callback |
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| 32 | use _gtkButtonCB with : |
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| 33 | - the Scol object |
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| 34 | - the reflex |
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| 35 | - any parameter at your convenience |
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| 36 | - the flag. To get the "clicked" signal, use SCOL_GTK_BUTTON_CB_CLICKED |
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| 37 | It's all*/ |
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| 38 | _gtkButtonCB button @CBbutton "yes !" SCOL_GTK_BUTTON_CB_CLICKED; |
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| 39 | ... |
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| 40 | ;; |
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| 41 | </code></pre> |
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| 42 | 3 | iri | |
| 43 | * A button with a mnemonic : |
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| 44 | A mnemonic is, by example, a keyboard shortcut |
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| 45 | |||
| 46 | <pre><code class="php"> |
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| 47 | fun CBbutton (obj, uparam)= |
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| 48 | _fooS "The button has been clicked"; |
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| 49 | _fooS strcat "user param is : " uparam; |
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| 50 | 0;; |
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| 51 | |||
| 52 | fun main ()= |
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| 53 | _showconsole; |
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| 54 | |||
| 55 | /* Create a window ...*/ |
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| 56 | set win = ... |
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| 57 | /* Create the button : |
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| 58 | 9 | iri | - the flag. For a mnemonic button, use SCOL_GTK_BUTTON_MNEMONIC. Here, with "My _button" the button will be accessible with ALT + b. |
| 59 | 3 | iri | - no supplemental parameter needed, so, nil it's ok */ |
| 60 | 9 | iri | set button = _gtkButtonNew _channel win "My _button" SCOL_GTK_BUTTON_MNEMONIC nil; |
| 61 | 3 | iri | /* Define the callback |
| 62 | - the flag. To get the "clicked" signal, use SCOL_GTK_BUTTON_CB_CLICKED */ |
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| 63 | _gtkButtonCB button @CBbutton "yes !" SCOL_GTK_BUTTON_CB_CLICKED; |
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| 64 | ... |
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| 65 | ;; |
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| 66 | </code></pre> |
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| 67 | 4 | iri | |
| 68 | * A button with a stock item : |
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| 69 | It is a same code than alabel. The name is the item. That's all. |
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| 70 | To create the button, use the flag SCOL_GTK_BUTTON_STOCKITEM. |
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| 71 | |||
| 72 | * A button with a link (uri) |
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| 73 | |||
| 74 | <pre><code class="php"> |
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| 75 | typeof win = ObjGtkWidget;; |
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| 76 | typeof button = ObjGtkWidget;; |
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| 77 | |||
| 78 | fun CBbutton (obj, uparam, url)= |
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| 79 | _fooS url; |
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| 80 | _fooS strcat "user param is : " uparam; |
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| 81 | 0;; |
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| 82 | |||
| 83 | fun main ()= |
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| 84 | _showconsole; |
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| 85 | |||
| 86 | /* Create a window ...*/ |
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| 87 | set win = ... |
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| 88 | /* Create the button : |
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| 89 | 5 | iri | - the flag. For a link button, use SCOL_GTK_BUTTON_LINK |
| 90 | - set the url to the 4e argument : type S */ |
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| 91 | set button = _gtkButtonNew _channel win "Scolring" SCOL_GTK_BUTTON_LINK "http://www.scolring.org/"; |
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| 92 | 4 | iri | /* Define the callback |
| 93 | - the flag. To get the activate signal, use SCOL_GTK_BUTTON_CB_LINKED |
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| 94 | 5 | iri | - the callback take one supplemental parameter : the url (type S) |
| 95 | Note : this callback works only with GTK+ 3.x. With GTK+ 2.x, you should use SCOL_GTK_BUTTON_CB_CLICKED */ |
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| 96 | 1 | iri | _gtkButtonCB button @CBbutton "yes !" SCOL_GTK_BUTTON_CB_LINKED; |
| 97 | ... |
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| 98 | ;; |
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| 99 | </code></pre> |
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| 100 | 5 | iri | |
| 101 | * A button with a check box |
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| 102 | |||
| 103 | <pre><code class="php"> |
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| 104 | typeof win = ObjGtkWidget;; |
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| 105 | typeof button = ObjGtkWidget;; |
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| 106 | |||
| 107 | fun CBbutton (obj, uparam, state)= |
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| 108 | _fooS strcat "The state of the check box is " itoa state; |
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| 109 | _fooS strcat "user param is : " uparam; |
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| 110 | 0;; |
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| 111 | |||
| 112 | fun main ()= |
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| 113 | _showconsole; |
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| 114 | |||
| 115 | /* Create a window ...*/ |
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| 116 | set win = ... |
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| 117 | /* Create the button : |
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| 118 | - the flag. For a check box button, use SCOL_GTK_BUTTON_CHECK |
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| 119 | - the 4e arg is the initial state of the check box : 1 (checked) or 0 (unchecked) type I */ |
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| 120 | set button = _gtkButtonNew _channel win "Check it !" SCOL_GTK_BUTTON_CHECK 0; |
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| 121 | /* Define the callback |
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| 122 | - the flag. To get the toggled signal, use SCOL_GTK_BUTTON_CB_TOGGLED |
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| 123 | - the callback take one supplemental parameter : the new state (type I) */ |
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| 124 | _gtkButtonCB button @CBbutton "yes !" SCOL_GTK_BUTTON_CB_TOGGLED; |
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| 125 | ... |
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| 126 | ;; |
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| 127 | </code></pre> |
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| 128 | |||
| 129 | * A switch button |
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| 130 | |||
| 131 | <pre><code class="php"> |
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| 132 | typeof win = ObjGtkWidget;; |
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| 133 | typeof button = ObjGtkWidget;; |
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| 134 | |||
| 135 | fun CBbutton (obj, uparam, state)= |
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| 136 | _fooS strcat "The state of the switch is " itoa state; |
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| 137 | _fooS strcat "user param is : " uparam; |
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| 138 | 0;; |
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| 139 | |||
| 140 | fun main ()= |
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| 141 | _showconsole; |
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| 142 | |||
| 143 | /* Create a window ...*/ |
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| 144 | set win = ... |
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| 145 | /* Create the button : |
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| 146 | - the flag. For a switch button, use SCOL_GTK_BUTTON_SWITCH |
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| 147 | - the 4e arg is the initial state of the switch : 1 (activate) or 0 (deactivate) (type I) */ |
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| 148 | set button = _gtkButtonNew _channel win "Check it !" SCOL_GTK_BUTTON_SWITCH 0; |
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| 149 | /* Define the callback |
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| 150 | - the flag. To get the toggled signal, use SCOL_GTK_BUTTON_CB_TOGGLED |
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| 151 | - the callback take one supplemental parameter : the new state (type I) */ |
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| 152 | _gtkButtonCB button @CBbutton "yes !" SCOL_GTK_BUTTON_CB_TOGGLED; |
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| 153 | ... |
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| 154 | ;; |
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| 155 | </code></pre> |
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| 156 | |||
| 157 | * Three radios buttons |
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| 158 | |||
| 159 | <pre><code class="php"> |
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| 160 | 6 | iri | typeof win = ObjGtkWidget;; |
| 161 | typeof button = ObjGtkWidget;; |
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| 162 | typeof button2 = ObjGtkWidget;; |
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| 163 | typeof button3 = ObjGtkWidget;; |
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| 164 | |||
| 165 | fun CBbutton (obj, uparam, state)= |
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| 166 | _fooS strcat "The state of the switch is " itoa state; |
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| 167 | _fooS strcat "user param is : " uparam; |
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| 168 | 0;; |
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| 169 | |||
| 170 | fun main ()= |
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| 171 | _showconsole; |
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| 172 | |||
| 173 | /* Create a window ...*/ |
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| 174 | set win = ... |
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| 175 | /* Create the button : |
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| 176 | 7 | iri | - the flag. For a radio button, use SCOL_GTK_BUTTON_RADIO |
| 177 | 6 | iri | - the 4e arg is a tuple (type [ObjGtkWidget I]) : |
| 178 | - this Scol object is the group object. At first radio button, it's nil. Next, |
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| 179 | others radio buttons belong to the same group have this first object. |
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| 180 | - the initial state (1 : checked, 0, unchecked)*/ |
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| 181 | set button1 = _gtkButtonNew _channel "One" SCOL_GTK_BUTTON_RADIO [nil 1]; |
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| 182 | set button2 = _gtkButtonNew _channel "Two" SCOL_GTK_BUTTON_RADIO [button1 0]; |
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| 183 | set button3 = _gtkButtonNew _channel "Three" SCOL_GTK_BUTTON_RADIO [button1 0]; |
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| 184 | /* Define the callback |
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| 185 | - the flag. To get the toggled signal, use SCOL_GTK_BUTTON_CB_TOGGLED |
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| 186 | - the callback take one supplemental parameter : the new state (type I) |
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| 187 | Note : you can set the flag to SCOL_GTK_BUTTON_CB_RADIO_CHANGED : in this case, |
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| 188 | the callback will be called when the radio button will change group */ |
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| 189 | 1 | iri | _gtkButtonCB button1 @CBbutton "yes !" SCOL_GTK_BUTTON_CB_TOGGLED; |
| 190 | 7 | iri | ... |
| 191 | ;; |
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| 192 | </code></pre> |
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| 193 | |||
| 194 | * A toggled button : two states : normal, pressed. |
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| 195 | |||
| 196 | <pre><code class="php"> |
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| 197 | typeof win = ObjGtkWidget;; |
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| 198 | typeof button = ObjGtkWidget;; |
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| 199 | |||
| 200 | fun CBbutton (obj, uparam, state)= |
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| 201 | _fooS strcat "The state of the state is " itoa state; |
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| 202 | _fooS strcat "user param is : " uparam; |
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| 203 | 0;; |
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| 204 | |||
| 205 | fun main ()= |
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| 206 | _showconsole; |
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| 207 | |||
| 208 | /* Create a window ...*/ |
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| 209 | set win = ... |
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| 210 | /* Create the button : |
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| 211 | - the flag. For a toggled button, use SCOL_GTK_BUTTON_TOGGLE |
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| 212 | - the 4e arg is the initial state of the button : 1 (activate) or 0 (deactivate) (type I) */ |
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| 213 | set button = _gtkButtonNew _channel win "Click !" SCOL_GTK_BUTTON_TOGGLE 0; |
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| 214 | /* Define the callback |
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| 215 | - the flag. To get the toggled signal, use SCOL_GTK_BUTTON_CB_TOGGLED |
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| 216 | - the callback take one supplemental parameter : the new state (type I) */ |
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| 217 | _gtkButtonCB button @CBbutton "yes !" SCOL_GTK_BUTTON_CB_TOGGLED; |
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| 218 | 6 | iri | ... |
| 219 | ;; |
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| 220 | </code></pre> |
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| 221 | 8 | iri | |
| 222 | Return [[Examples]] |