diff options
Diffstat (limited to 'src/gwin/gwm.c')
| -rw-r--r-- | src/gwin/gwm.c | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/src/gwin/gwm.c b/src/gwin/gwm.c new file mode 100644 index 00000000..f9f56838 --- /dev/null +++ b/src/gwin/gwm.c @@ -0,0 +1,201 @@ +/* + * This file is subject to the terms of the GFX License. If a copy of + * the license was not distributed with this file, you can obtain one at: + * + * http://chibios-gfx.com/license.html + */ + +#include "gfx.h" + +// Used by the NULL window manager +#define MIN_WIN_WIDTH 3 +#define MIN_WIN_HEIGHT 3 + +/*----------------------------------------------- + * The default window manager (GNullWindowManager) + *-----------------------------------------------*/ + +#if GFX_USE_GWIN && GWIN_NEED_WINDOWMANAGER + +#include "gwin/class_gwin.h" + +/*----------------------------------------------- + * Data + *-----------------------------------------------*/ + +static void WM_Init(void); +static void WM_DeInit(void); +static bool_t WM_Add(GHandle gh, const GWindowInit *pInit); +static void WM_Delete(GHandle gh); +static void WM_Visible(GHandle gh); +static void WM_Redim(GHandle gh, coord_t x, coord_t y, coord_t w, coord_t h); +static void WM_Raise(GHandle gh); +static void WM_MinMax(GHandle gh, GWindowMinMax minmax); + +static const gwmVMT GNullWindowManagerVMT = { + WM_Init, + WM_DeInit, + WM_Add, + WM_Delete, + WM_Visible, + WM_Redim, + WM_Raise, + WM_MinMax, +}; + +static const GWindowManager GNullWindowManager = { + &GNullWindowManagerVMT, +}; + +gfxQueueASync _GWINList; +GWindowManager * _GWINwm; + +/*----------------------------------------------- + * Window Routines + *-----------------------------------------------*/ + +void _gwmInit(void) { + gfxQueueASyncInit(&_GWINList); + _GWINwm = (GWindowManager *)&GNullWindowManager; + _GWINwm->vmt->Init(); +} + +void gwinSetWindowManager(struct GWindowManager *gwm) { + if (!gwm) + gwm = (GWindowManager *)&GNullWindowManager; + if (_GWINwm != gwm) { + _GWINwm->vmt->DeInit(); + _GWINwm = gwm; + _GWINwm->vmt->Init(); + } +} + +void gwinSetMinMax(GHandle gh, GWindowMinMax minmax) { + _GWINwm->vmt->MinMax(gh, minmax); +} + +void gwinRaise(GHandle gh) { + _GWINwm->vmt->Raise(gh); +} + +GWindowMinMax gwinGetMinMax(GHandle gh) { + if (gh->flags & GWIN_FLG_MINIMIZED) + return GWIN_MINIMIZE; + if (gh->flags & GWIN_FLG_MAXIMIZED) + return GWIN_MAXIMIZE; + return GWIN_NORMAL; +} + +/*----------------------------------------------- + * Window Manager Routines + *-----------------------------------------------*/ + +static void WM_Init(void) { + // We don't need to do anything here. + // A full window manager would move the windows around, add borders etc + + // clear the screen + // cycle through the windows already defined displaying them + // or cut all the window areas out of the screen and clear the remainder +} + +static void WM_DeInit(void) { + // We don't need to do anything here. + // A full window manager would remove any borders etc +} + +static bool_t WM_Add(GHandle gh, const GWindowInit *pInit) { + // Note the window will not be marked as visible yet + + // Put it on the queue + gfxQueueASyncPut(&_GWINList, &gh->wmq); + + // Make sure the size is valid + WM_Redim(gh, pInit->x, pInit->y, pInit->width, pInit->height); + return TRUE; +} + +static void WM_Delete(GHandle gh) { + // Make the window invisible and clear the area underneath + if ((gh->flags & GWIN_FLG_VISIBLE)) { + gh->flags &= ~GWIN_FLG_VISIBLE; + gdispFillArea(gh->x, gh->y, gh->width, gh->height, gwinGetDefaultBgColor()); + } + + // Remove it from the queue + gfxQueueASyncRemove(&_GWINList, &gh->wmq); +} + +static void WM_Visible(GHandle gh) { + #if GDISP_NEED_CLIP + gdispSetClip(gh->x, gh->y, gh->width, gh->height); + #endif + if ((gh->flags & GWIN_FLG_VISIBLE)) { + if (gh->vmt->Redraw) + gh->vmt->Redraw(gh); + else + gdispFillArea(gh->x, gh->y, gh->width, gh->height, gh->bgcolor); + // A real window manager would also redraw the borders here + } else + gdispFillArea(gh->x, gh->y, gh->width, gh->height, gwinGetDefaultBgColor()); +} + +static void WM_Redim(GHandle gh, coord_t x, coord_t y, coord_t w, coord_t h) { + // This is the simplest way of doing it - just clip the the screen + // If it won't fit on the screen move it around until it does. + if (x < 0) { w += x; x = 0; } + if (y < 0) { h += y; y = 0; } + if (x > gdispGetWidth()-MIN_WIN_WIDTH) x = gdispGetWidth()-MIN_WIN_WIDTH; + if (y > gdispGetHeight()-MIN_WIN_HEIGHT) y = gdispGetHeight()-MIN_WIN_HEIGHT; + if (w < MIN_WIN_WIDTH) { w = MIN_WIN_WIDTH; } + if (h < MIN_WIN_HEIGHT) { h = MIN_WIN_HEIGHT; } + if (x+w > gdispGetWidth()) w = gdispGetWidth() - x; + if (y+h > gdispGetHeight()) h = gdispGetHeight() - y; + + // If there has been no resize just exit + if (gh->x == x && gh->y == y && gh->width == w && gh->height == h) + return; + + // Clear the old area + if ((gh->flags & GWIN_FLG_VISIBLE)) + gdispFillArea(gh->x, gh->y, gh->width, gh->height, gwinGetDefaultBgColor()); + + // Set the new size + gh->x = x; gh->y = y; + gh->width = w; gh->height = h; + + // Redraw the window (if possible) + if ((gh->flags & GWIN_FLG_VISIBLE)) { + if (gh->vmt->Redraw) { + #if GDISP_NEED_CLIP + gdispSetClip(gh->x, gh->y, gh->width, gh->height); + #endif + gh->vmt->Redraw(gh); + } + } +} + +static void WM_MinMax(GHandle gh, GWindowMinMax minmax) { + (void)gh; (void) minmax; + // We don't support minimising, maximising or restoring +} + +static void WM_Raise(GHandle gh) { + // Take it off the list and then put it back on top + // The order of the list then reflects the z-order. + gfxQueueASyncRemove(&_GWINList, &gh->wmq); + gfxQueueASyncPut(&_GWINList, &gh->wmq); + + // Redraw the window + if ((gh->flags & GWIN_FLG_VISIBLE)) { + if (gh->vmt->Redraw) { + #if GDISP_NEED_CLIP + gdispSetClip(gh->x, gh->y, gh->width, gh->height); + #endif + gh->vmt->Redraw(gh); + } + } +} + +#endif /* GFX_USE_GWIN && GWIN_NEED_WINDOWMANAGER */ +/** @} */ |