diff options
Diffstat (limited to 'include/pugl/pugl.h')
| -rw-r--r-- | include/pugl/pugl.h | 296 |
1 files changed, 170 insertions, 126 deletions
diff --git a/include/pugl/pugl.h b/include/pugl/pugl.h index 981d76d..637460e 100644 --- a/include/pugl/pugl.h +++ b/include/pugl/pugl.h @@ -22,6 +22,11 @@ PUGL_BEGIN_DECLS */ /** + @defgroup geometry_types Geometry Types + @{ +*/ + +/** A pixel coordinate within/of a view. This is relative to the top left corner of the view's parent, or to the top @@ -59,89 +64,16 @@ typedef struct { } PuglRect; /** + @} @defgroup events Events All updates to the view happen via events, which are dispatched to the - view's event function. Most events map directly to one from the underlying - window system, but some are constructed by Pugl itself so there is not - necessarily a direct correspondence. + view's event function. An event is a tagged union with a type, and a set of + more specific fields depending on the type. @{ */ -/// Keyboard modifier flags -typedef enum { - PUGL_MOD_SHIFT = 1U << 0U, ///< Shift key - PUGL_MOD_CTRL = 1U << 1U, ///< Control key - PUGL_MOD_ALT = 1U << 2U, ///< Alt/Option key - PUGL_MOD_SUPER = 1U << 3U ///< Mod4/Command/Windows key -} PuglMod; - -/// Bitwise OR of #PuglMod values -typedef uint32_t PuglMods; - -/** - Keyboard key codepoints. - - All keys are identified by a Unicode code point in PuglKeyEvent::key. This - enumeration defines constants for special keys that do not have a standard - code point, and some convenience constants for control characters. Note - that all keys are handled in the same way, this enumeration is just for - convenience when writing hard-coded key bindings. - - Keys that do not have a standard code point use values in the Private Use - Area in the Basic Multilingual Plane (`U+E000` to `U+F8FF`). Applications - must take care to not interpret these values beyond key detection, the - mapping used here is arbitrary and specific to Pugl. -*/ -typedef enum { - // ASCII control codes - PUGL_KEY_BACKSPACE = 0x08, - PUGL_KEY_ESCAPE = 0x1B, - PUGL_KEY_DELETE = 0x7F, - - // Unicode Private Use Area - PUGL_KEY_F1 = 0xE000, - PUGL_KEY_F2, - PUGL_KEY_F3, - PUGL_KEY_F4, - PUGL_KEY_F5, - PUGL_KEY_F6, - PUGL_KEY_F7, - PUGL_KEY_F8, - PUGL_KEY_F9, - PUGL_KEY_F10, - PUGL_KEY_F11, - PUGL_KEY_F12, - PUGL_KEY_LEFT, - PUGL_KEY_UP, - PUGL_KEY_RIGHT, - PUGL_KEY_DOWN, - PUGL_KEY_PAGE_UP, - PUGL_KEY_PAGE_DOWN, - PUGL_KEY_HOME, - PUGL_KEY_END, - PUGL_KEY_INSERT, - PUGL_KEY_SHIFT, - PUGL_KEY_SHIFT_L = PUGL_KEY_SHIFT, - PUGL_KEY_SHIFT_R, - PUGL_KEY_CTRL, - PUGL_KEY_CTRL_L = PUGL_KEY_CTRL, - PUGL_KEY_CTRL_R, - PUGL_KEY_ALT, - PUGL_KEY_ALT_L = PUGL_KEY_ALT, - PUGL_KEY_ALT_R, - PUGL_KEY_SUPER, - PUGL_KEY_SUPER_L = PUGL_KEY_SUPER, - PUGL_KEY_SUPER_R, - PUGL_KEY_MENU, - PUGL_KEY_CAPS_LOCK, - PUGL_KEY_SCROLL_LOCK, - PUGL_KEY_NUM_LOCK, - PUGL_KEY_PRINT_SCREEN, - PUGL_KEY_PAUSE -} PuglKey; - /// The type of a PuglEvent typedef enum { PUGL_NOTHING, ///< No event @@ -188,22 +120,6 @@ typedef enum { PUGL_CROSSING_UNGRAB ///< Crossing due to a grab release } PuglCrossingMode; -/** - Scroll direction. - - Describes the direction of a #PuglScrollEvent along with whether the scroll - is a "smooth" scroll. The discrete directions are for devices like mouse - wheels with constrained axes, while a smooth scroll is for those with - arbitrary scroll direction freedom, like some touchpads. -*/ -typedef enum { - PUGL_SCROLL_UP, ///< Scroll up - PUGL_SCROLL_DOWN, ///< Scroll down - PUGL_SCROLL_LEFT, ///< Scroll left - PUGL_SCROLL_RIGHT, ///< Scroll right - PUGL_SCROLL_SMOOTH ///< Smooth scroll in any direction -} PuglScrollDirection; - /// Common header for all event structs typedef struct { PuglEventType type; ///< Event type @@ -211,6 +127,11 @@ typedef struct { } PuglAnyEvent; /** + @defgroup management_events Management Events + @{ +*/ + +/** View create event. This event is sent when a view is realized before it is first displayed, @@ -273,6 +194,54 @@ typedef PuglAnyEvent PuglMapEvent; typedef PuglAnyEvent PuglUnmapEvent; /** + Recursive loop enter event. + + This event is sent when the window system enters a recursive loop. The main + loop will be stalled and no expose events will be received while in the + recursive loop. To give the application full control, Pugl does not do any + special handling of this situation, but this event can be used to install a + timer to perform continuous actions (such as drawing) on platforms that do + this. + + - MacOS: A recursive loop is entered while the window is being live resized. + + - Windows: A recursive loop is entered while the window is being live + resized or the menu is shown. + + - X11: A recursive loop is never entered and the event loop runs as usual + while the view is being resized. + + This event type has no extra fields. +*/ +typedef PuglAnyEvent PuglLoopEnterEvent; + +/** + Recursive loop leave event. + + This event is sent after a loop enter event when the recursive loop is + finished and normal iteration will continue. + + This event type has no extra fields. +*/ +typedef PuglAnyEvent PuglLoopLeaveEvent; + +/** + View close event. + + This event is sent when the view is to be closed, for example when the user + clicks the close button. + + This event type has no extra fields. +*/ +typedef PuglAnyEvent PuglCloseEvent; + +/** + @} + @defgroup update_events Update Events + @{ +*/ + +/** View update event. This event is sent to every view near the end of a main loop iteration when @@ -300,14 +269,83 @@ typedef struct { } PuglExposeEvent; /** - View close event. + @} + @defgroup keyboard_events Keyboard Events + @{ +*/ - This event is sent when the view is to be closed, for example when the user - clicks the close button. +/** + Keyboard key codepoints. - This event type has no extra fields. + All keys are identified by a Unicode code point in PuglKeyEvent::key. This + enumeration defines constants for special keys that do not have a standard + code point, and some convenience constants for control characters. Note + that all keys are handled in the same way, this enumeration is just for + convenience when writing hard-coded key bindings. + + Keys that do not have a standard code point use values in the Private Use + Area in the Basic Multilingual Plane (`U+E000` to `U+F8FF`). Applications + must take care to not interpret these values beyond key detection, the + mapping used here is arbitrary and specific to Pugl. */ -typedef PuglAnyEvent PuglCloseEvent; +typedef enum { + // ASCII control codes + PUGL_KEY_BACKSPACE = 0x08, + PUGL_KEY_ESCAPE = 0x1B, + PUGL_KEY_DELETE = 0x7F, + + // Unicode Private Use Area + PUGL_KEY_F1 = 0xE000, + PUGL_KEY_F2, + PUGL_KEY_F3, + PUGL_KEY_F4, + PUGL_KEY_F5, + PUGL_KEY_F6, + PUGL_KEY_F7, + PUGL_KEY_F8, + PUGL_KEY_F9, + PUGL_KEY_F10, + PUGL_KEY_F11, + PUGL_KEY_F12, + PUGL_KEY_LEFT, + PUGL_KEY_UP, + PUGL_KEY_RIGHT, + PUGL_KEY_DOWN, + PUGL_KEY_PAGE_UP, + PUGL_KEY_PAGE_DOWN, + PUGL_KEY_HOME, + PUGL_KEY_END, + PUGL_KEY_INSERT, + PUGL_KEY_SHIFT, + PUGL_KEY_SHIFT_L = PUGL_KEY_SHIFT, + PUGL_KEY_SHIFT_R, + PUGL_KEY_CTRL, + PUGL_KEY_CTRL_L = PUGL_KEY_CTRL, + PUGL_KEY_CTRL_R, + PUGL_KEY_ALT, + PUGL_KEY_ALT_L = PUGL_KEY_ALT, + PUGL_KEY_ALT_R, + PUGL_KEY_SUPER, + PUGL_KEY_SUPER_L = PUGL_KEY_SUPER, + PUGL_KEY_SUPER_R, + PUGL_KEY_MENU, + PUGL_KEY_CAPS_LOCK, + PUGL_KEY_SCROLL_LOCK, + PUGL_KEY_NUM_LOCK, + PUGL_KEY_PRINT_SCREEN, + PUGL_KEY_PAUSE +} PuglKey; + +/// Keyboard modifier flags +typedef enum { + PUGL_MOD_SHIFT = 1U << 0U, ///< Shift key + PUGL_MOD_CTRL = 1U << 1U, ///< Control key + PUGL_MOD_ALT = 1U << 2U, ///< Alt/Option key + PUGL_MOD_SUPER = 1U << 3U ///< Mod4/Command/Windows key +} PuglMod; + +/// Bitwise OR of #PuglMod values +typedef uint32_t PuglMods; /** Keyboard focus event. @@ -377,6 +415,28 @@ typedef struct { } PuglTextEvent; /** + @} + @defgroup pointer_events Pointer Events + @{ +*/ + +/** + Scroll direction. + + Describes the direction of a #PuglScrollEvent along with whether the scroll + is a "smooth" scroll. The discrete directions are for devices like mouse + wheels with constrained axes, while a smooth scroll is for those with + arbitrary scroll direction freedom, like some touchpads. +*/ +typedef enum { + PUGL_SCROLL_UP, ///< Scroll up + PUGL_SCROLL_DOWN, ///< Scroll down + PUGL_SCROLL_LEFT, ///< Scroll left + PUGL_SCROLL_RIGHT, ///< Scroll right + PUGL_SCROLL_SMOOTH ///< Smooth scroll in any direction +} PuglScrollDirection; + +/** Pointer enter or leave event. This event is sent when the pointer enters or leaves the view. This can @@ -463,6 +523,12 @@ typedef struct { } PuglScrollEvent; /** + @} + @defgroup custom_events Custom Events + @{ +*/ + +/** Custom client message event. This can be used to send a custom message to a view, which is delivered via @@ -493,6 +559,12 @@ typedef struct { } PuglTimerEvent; /** + @} + @defgroup clipboard_events Clipboard Events + @{ +*/ + +/** Clipboard data offer event. This event is sent when a clipboard has data present, possibly with several @@ -521,36 +593,8 @@ typedef struct { } PuglDataEvent; /** - Recursive loop enter event. - - This event is sent when the window system enters a recursive loop. The main - loop will be stalled and no expose events will be received while in the - recursive loop. To give the application full control, Pugl does not do any - special handling of this situation, but this event can be used to install a - timer to perform continuous actions (such as drawing) on platforms that do - this. - - - MacOS: A recursive loop is entered while the window is being live resized. - - - Windows: A recursive loop is entered while the window is being live - resized or the menu is shown. - - - X11: A recursive loop is never entered and the event loop runs as usual - while the view is being resized. - - This event type has no extra fields. -*/ -typedef PuglAnyEvent PuglLoopEnterEvent; - -/** - Recursive loop leave event. - - This event is sent after a loop enter event when the recursive loop is - finished and normal iteration will continue. - - This event type has no extra fields. + @} */ -typedef PuglAnyEvent PuglLoopLeaveEvent; /** View event. |