From 8275c8820f230342939a2410dd0b24c0f26a14e5 Mon Sep 17 00:00:00 2001 From: Andrew Hannam Date: Mon, 26 Nov 2012 18:45:26 +1000 Subject: Ginput and structure changes GINPUT Touch including drivers GTIMER fixes GEVENT fixes GWIN button completion Structure changes to better seperate sections of a sub-system --- src/gwin/button.c | 331 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 331 insertions(+) create mode 100644 src/gwin/button.c (limited to 'src/gwin/button.c') diff --git a/src/gwin/button.c b/src/gwin/button.c new file mode 100644 index 00000000..f62a86a4 --- /dev/null +++ b/src/gwin/button.c @@ -0,0 +1,331 @@ +/* + ChibiOS/GFX - Copyright (C) 2012 + Joel Bodenmann aka Tectu + + This file is part of ChibiOS/GFX. + + ChibiOS/GFX 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. + + ChibiOS/GFX 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 . +*/ + +/** + * @file src/gwin/button.c + * @brief GWIN Driver code. + * + * @addtogroup GWIN_BUTTON + * @{ + */ +#include "ch.h" +#include "hal.h" +#include "gwin.h" +#include "ginput.h" + +#if !defined(GFX_USE_GINPUT) || !GFX_USE_GINPUT + #error "GWIN Buttons require GFX_USE_GINPUT" +#endif + +#if (GFX_USE_GWIN && GWIN_NEED_BUTTON) || defined(__DOXYGEN__) + +#include +#include "gwin_internal.h" + +static const GButtonStyle GButtonDefaultStyle = { + GBTN_3D, + HTML2COLOR(0x404040), // color_up_edge; + HTML2COLOR(0xE0E0E0), // color_up_fill; + HTML2COLOR(0x000000), // color_up_txt; + HTML2COLOR(0x404040), // color_dn_edge; + HTML2COLOR(0x808080), // color_dn_fill; + HTML2COLOR(0x404040), // color_dn_txt; + }; + +// Process an event callback +static void gwinButtonCallback(void *param, GEvent *pe) { + GSourceListener *psl; + #define gh ((GHandle)param) + #define gbw ((GButtonObject *)param) + #define gsh ((GSourceHandle)param) + #define pme ((GEventMouse *)pe) + #define pte ((GEventTouch *)pe) + #define pxe ((GEventToggle *)pe) + #define pbe ((GEventGWinButton *)pe) + + switch (pe->type) { + #if defined(GINPUT_NEED_MOUSE) && GINPUT_NEED_MOUSE + case GEVENT_MOUSE: + case GEVENT_TOUCH: + // Ignore anything other than the primary mouse button going up or down + if (!((pme->current_buttons ^ pme->last_buttons) & GINPUT_MOUSE_BTN_LEFT)) + return; + + if (gbw->state == GBTN_UP) { + // Our button is UP: Test for button down over the button + if ((pme->current_buttons & GINPUT_MOUSE_BTN_LEFT) + && pme->x >= gbw->gwin.x && pme->x < gbw->gwin.x + gbw->gwin.width + && pme->y >= gbw->gwin.y && pme->y < gbw->gwin.y + gbw->gwin.height) { + gbw->state = GBTN_DOWN; + gwinButtonDraw((GHandle)param); + } + return; + } + + // Our button is DOWN + + // Skip more mouse downs + if ((pme->current_buttons & GINPUT_MOUSE_BTN_LEFT)) + return; + + // This must be a mouse up - set the button as UP + gbw->state = GBTN_UP; + gwinButtonDraw((GHandle)param); + + // If the mouse up was over the button then create the event + if (pme->x >= gbw->gwin.x && pme->x < gbw->gwin.x + gbw->gwin.width + && pme->y >= gbw->gwin.y && pme->y < gbw->gwin.y + gbw->gwin.height) + break; + + return; + #endif + + #if defined(GINPUT_NEED_TOGGLE) && GINPUT_NEED_TOGGLE + case GEVENT_TOGGLE: + // State has changed - update the button + gbw->state = pxe->on ? GBTN_DOWN : GBTN_UP; + gwinButtonDraw((GHandle)param); + + // Trigger the event on button down (different than for mouse/touch) + if (gbw->state == GBTN_DOWN) + break; + + return; + #endif + + default: + return; + } + + // Trigger a GWIN Button Event + psl = 0; + while ((psl = geventGetSourceListener(gsh, psl))) { + if (!(pe = geventGetEventBuffer(psl))) + continue; + pbe->type = GEVENT_GWIN_BUTTON; + pbe->button = gh; + geventSendEvent(psl); + } + + #undef pbe + #undef pme + #undef pte + #undef pxe + #undef gsh + #undef gbw + #undef gh +} + +/** + * @brief Create a button window. + * @return NULL if there is no resultant drawing area, otherwise a window handle. + * + * @param[in] gb The GConsoleWindow structure to initialise. If this is NULL the structure is dynamically allocated. + * @param[in] x,y The screen co-ordinates for the bottom left corner of the window + * @param[in] width The width of the window + * @param[in] height The height of the window + * @param[in] font The font to use + * @param[in] type The type of button + * @note The drawing color gets set to White and the background drawing color to Black. + * @note The dimensions and position may be changed to fit on the real screen. + * @note The button is not automatically drawn. Call gwinButtonDraw() after changing the button style or setting the text. + * + * @api + */ +GHandle gwinCreateButton(GButtonObject *gb, coord_t x, coord_t y, coord_t width, coord_t height, font_t font, GButtonType type) { + if (!(gb = (GButtonObject *)_gwinInit((GWindowObject *)gb, x, y, width, height, sizeof(GButtonObject)))) + return 0; + gb->gwin.type = GW_BUTTON; + gwinSetFont(&gb->gwin, font); + gwinSetButtonStyle(&gb->gwin, &GButtonDefaultStyle); + gb->type = type; + gb->state = GBTN_UP; + gb->txt = ""; + geventListenerInit(&gb->listener); + geventRegisterCallback(&gb->listener, gwinButtonCallback, gb); + return (GHandle)gb; +} + +/** + * @brief Set the style of a button. + * @details The button style is defined by its shape and colours. + * + * @param[in] gh The window handle (must be a button window) + * @param[in] style The button style to set. + * @note The button is not automatically redrawn. Call gwinButtonDraw() after changing the button style + * + * @api + */ +void gwinSetButtonStyle(GHandle gh, const GButtonStyle *style) { + #define gbw ((GButtonObject *)gh) + if (gh->type != GW_BUTTON) + return; + + gbw->style.shape = style->shape; + gbw->style.color_up_edge = style->color_up_edge; + gbw->style.color_up_fill = style->color_up_fill; + gbw->style.color_dn_edge = style->color_dn_edge; + gbw->style.color_dn_fill = style->color_dn_fill; + gbw->style.color_up_txt = style->color_up_txt; + gbw->style.color_dn_txt = style->color_dn_txt; + #undef gbw +} + +/** + * @brief Set the text of a button. + * + * @param[in] gh The window handle (must be a button window) + * @param[in] txt The button text to set. This must be a constant string unless useAlloc is set. + * @param[in] useAlloc If TRUE the string specified will be copied into dynamically allocated memory. + * @note The button is not automatically redrawn. Call gwinButtonDraw() after changing the button text. + * + * @api + */ +void gwinSetButtonText(GHandle gh, const char *txt, bool_t useAlloc) { + #define gbw ((GButtonObject *)gh) + if (gh->type != GW_BUTTON) + return; + + // Dispose of the old string + if ((gh->flags & GBTN_FLG_ALLOCTXT)) { + gh->flags &= ~GBTN_FLG_ALLOCTXT; + if (gbw->txt) { + chHeapFree((void *)gbw->txt); + gbw->txt = ""; + } + } + // Alloc the new text if required + if (txt && useAlloc) { + char *str; + + if ((str = (char *)chHeapAlloc(NULL, strlen(txt)+1))) { + gh->flags |= GBTN_FLG_ALLOCTXT; + strcpy(str, txt); + } + txt = (const char *)str; + } + + gbw->txt = txt ? txt : ""; + #undef gbw +} + +/** + * @brief Redraw the button. + * + * @param[in] gh The window handle (must be a button window) + * + * @api + */ +void gwinButtonDraw(GHandle gh) { + color_t cedge; + color_t cfill; + color_t ctxt; + const char * txt; + #define gbw ((GButtonObject *)gh) + #define RND_CNR_SIZE 5 + + if (gh->type != GW_BUTTON) + return; + + #if GDISP_NEED_CLIP + gdispSetClip(gh->x, gh->y, gh->width, gh->height); + #endif + + // Get the text (safely) + txt = gh->font && gbw->txt ? gbw->txt : ""; + + // Determine the colors to use + switch(gbw->state) { + case GBTN_DOWN: + cedge = gbw->style.color_dn_edge; + cfill = gbw->style.color_dn_fill; + ctxt = gbw->style.color_dn_txt; + break; + case GBTN_UP: default: + cedge = gbw->style.color_up_edge; + cfill = gbw->style.color_up_fill; + ctxt = gbw->style.color_up_txt; + break; + } + + // Draw according to the shape specified. + switch(gbw->style.shape) { +#if GDISP_NEED_ARC + case GBTN_ROUNDED: + if (gh->width >= 2*RND_CNR_SIZE+10) { + gdispFillRoundedBox(gh->x+1, gh->y+1, gh->width-2, gh->height-2, RND_CNR_SIZE-1, cfill); + gdispDrawStringBox(gh->x+1, gh->y+RND_CNR_SIZE, gh->width-2, gh->height-(2*RND_CNR_SIZE), txt, gh->font, ctxt, justifyCenter); + gdispDrawRoundedBox(gh->x, gh->y, gh->width, gh->height, RND_CNR_SIZE, cedge); + break; + } + /* Fall Through */ +#endif + case GBTN_SQUARE: + gdispFillStringBox(gh->x+1, gh->y+1, gh->width-2, gh->height-2, txt, gh->font, ctxt, cfill, justifyCenter); + gdispDrawBox(gh->x, gh->y, gh->width, gh->height, cedge); + break; +#if GDISP_NEED_ELLIPSE + case GBTN_ELLIPSE: + gdispFillEllipse(gh->x+1, gh->y+1, gh->width/2-1, gh->height/2-1, cfill); + gdispDrawStringBox(gh->x+1, gh->y+1, gh->width-2, gh->height-2, txt, gh->font, ctxt, justifyCenter); + gdispDrawEllipse(gh->x, gh->y, gh->width/2, gh->height/2, cedge); + break; +#endif + case GBTN_3D: default: + gdispFillStringBox(gh->x, gh->y, gh->width-1, gh->height-1, txt, gh->font, ctxt, cfill, justifyCenter); + gdispDrawLine(gh->x+gh->width-1, gh->y, gh->x+gh->width-1, gh->y+gh->height-1, cedge); + gdispDrawLine(gh->x, gh->y+gh->height-1, gh->x+gh->width-2, gh->y+gh->height-1, cedge); + break; + } + #undef gbw +} + +// Attach a source to this button. Sources recognised: Mouse, Touch and Toggle - others are ignored (returns false). +bool_t gwinAttachButtonSource(GHandle gh, GSourceHandle gsh, GEventType type) { + #define gbw ((GButtonObject *)gh) + unsigned flags; + + switch (type) { + #if defined(GINPUT_NEED_MOUSE) && GINPUT_NEED_MOUSE + case GEVENT_MOUSE: + flags = 0; + break; + #endif + #if defined(GINPUT_NEED_TOUCH) && GINPUT_NEED_TOUCH + case GEVENT_TOUCH: + flags = 0; + break; + #endif + #if defined(GINPUT_NEED_TOGGLE) && GINPUT_NEED_TOGGLE + case GEVENT_TOGGLE: + flags = GLISTEN_TOGGLE_OFF|GLISTEN_TOGGLE_ON; + break; + #endif + default: + return FALSE; + } + return geventAttachSource(&gbw->listener, gsh, flags); + + #undef gbw +} + +#endif /* GFX_USE_GWIN && GWIN_NEED_BUTTON */ +/** @} */ + -- cgit v1.2.3