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/* Copyright 2020 Jaakko Keränen <jaakko.keranen@iki.fi>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
#pragma once
#include "mobile.h"
#include <the_Foundation/string.h>
#include <the_Foundation/rect.h>
#include <the_Foundation/vec2.h>
#include <SDL_events.h>
#include <ctype.h>
iDeclareType(Click)
iDeclareType(Widget)
iDeclareType(LabelWidget)
iDeclareType(InputWidget)
iBool isCommand_SDLEvent (const SDL_Event *d);
iBool isCommand_UserEvent (const SDL_Event *, const char *cmd);
const char * command_UserEvent (const SDL_Event *);
iLocalDef iBool isResize_UserEvent(const SDL_Event *d) {
return isCommand_UserEvent(d, "window.resized");
}
iLocalDef iBool isMetricsChange_UserEvent(const SDL_Event *d) {
return isCommand_UserEvent(d, "metrics.changed");
}
enum iMouseWheelFlag {
perPixel_MouseWheelFlag = iBit(9), /* e.g., trackpad or finger scroll; applied to `direction` */
};
/* Note: A future version of SDL may support per-pixel scrolling, but 2.0.x doesn't. */
iLocalDef void setPerPixel_MouseWheelEvent(SDL_MouseWheelEvent *ev, iBool set) {
iChangeFlags(ev->direction, perPixel_MouseWheelFlag, set);
}
iLocalDef iBool isPerPixel_MouseWheelEvent(const SDL_MouseWheelEvent *ev) {
return (ev->direction & perPixel_MouseWheelFlag) != 0;
}
iInt2 coord_MouseWheelEvent (const SDL_MouseWheelEvent *);
#if defined (iPlatformApple)
# define KMOD_PRIMARY KMOD_GUI
# define KMOD_SECONDARY KMOD_CTRL
#else
# define KMOD_PRIMARY KMOD_CTRL
# define KMOD_SECONDARY KMOD_GUI
#endif
enum iOpenTabFlag {
new_OpenTabFlag = iBit(1),
newBackground_OpenTabFlag = iBit(2),
otherRoot_OpenTabFlag = iBit(3),
};
iBool isMod_Sym (int key);
int normalizedMod_Sym (int key);
int keyMods_Sym (int kmods); /* shift, alt, control, or gui */
void toString_Sym (int key, int kmods, iString *str);
int openTabMode_Sym (int kmods); /* returns OpenTabFlags */
iRangei intersect_Rangei (iRangei a, iRangei b);
iRangei union_Rangei (iRangei a, iRangei b);
iLocalDef iBool equal_Rangei(iRangei a, iRangei b) {
return a.start == b.start && a.end == b.end;
}
iLocalDef iBool isEmpty_Rangei(iRangei d) {
return size_Range(&d) == 0;
}
iLocalDef iBool isOverlapping_Rangei(iRangei a, iRangei b) {
return !isEmpty_Rangei(intersect_Rangei(a, b));
}
enum iRangeExtension {
word_RangeExtension = iBit(1),
line_RangeExtension = iBit(2),
moveStart_RangeExtension = iBit(3),
moveEnd_RangeExtension = iBit(4),
bothStartAndEnd_RangeExtension = moveStart_RangeExtension | moveEnd_RangeExtension,
};
void extendRange_Rangecc (iRangecc *, iRangecc bounds, int mode);
iBool isSelectionBreaking_Char(iChar);
/*-----------------------------------------------------------------------------------------------*/
iDeclareType(Anim)
enum iAnimFlag {
indefinite_AnimFlag = iBit(1), /* does not end; must be linear */
easeIn_AnimFlag = iBit(2),
easeOut_AnimFlag = iBit(3),
easeBoth_AnimFlag = easeIn_AnimFlag | easeOut_AnimFlag,
softer_AnimFlag = iBit(4),
muchSofter_AnimFlag = iBit(5),
bounce_AnimFlag = iBit(6),
};
struct Impl_Anim {
float from, to, bounce;
uint32_t when, due;
int flags;
};
void init_Anim (iAnim *, float value);
void setValue_Anim (iAnim *, float to, uint32_t span);
void setValueSpeed_Anim (iAnim *, float to, float unitsPerSecond);
void setValueEased_Anim (iAnim *, float to, uint32_t span);
void setFlags_Anim (iAnim *, int flags, iBool set);
void stop_Anim (iAnim *);
iBool isFinished_Anim (const iAnim *);
float pos_Anim (const iAnim *);
float value_Anim (const iAnim *);
iLocalDef float targetValue_Anim(const iAnim *d) {
return d->to;
}
iLocalDef iBool isLinear_Anim(const iAnim *d) {
return (d->flags & (easeIn_AnimFlag | easeOut_AnimFlag)) == 0;
}
/*-----------------------------------------------------------------------------------------------*/
enum iClickResult {
none_ClickResult,
started_ClickResult,
drag_ClickResult,
finished_ClickResult,
aborted_ClickResult,
};
struct Impl_Click {
iBool isActive;
int button;
int count;
iWidget *bounds;
int minHeight;
iInt2 startPos;
iInt2 pos;
};
void init_Click (iClick *, iAnyObject *widget, int button);
enum iClickResult processEvent_Click (iClick *, const SDL_Event *event);
void cancel_Click (iClick *);
iBool isMoved_Click (const iClick *);
iInt2 pos_Click (const iClick *);
iRect rect_Click (const iClick *);
iInt2 delta_Click (const iClick *);
iBool contains_Click (const iClick *, iInt2 coord);
/*-----------------------------------------------------------------------------------------------*/
iDeclareType(SmoothScroll)
typedef void (*iSmoothScrollNotifyFunc)(iAnyObject *, int offset, uint32_t span);
struct Impl_SmoothScroll {
iAnim pos;
int max;
int overscroll;
iWidget *widget;
iSmoothScrollNotifyFunc notify;
};
void init_SmoothScroll (iSmoothScroll *, iWidget *owner, iSmoothScrollNotifyFunc notify);
void reset_SmoothScroll (iSmoothScroll *);
void setMax_SmoothScroll (iSmoothScroll *, int max);
void move_SmoothScroll (iSmoothScroll *, int offset);
void moveSpan_SmoothScroll (iSmoothScroll *, int offset, uint32_t span);
iBool processEvent_SmoothScroll (iSmoothScroll *, const SDL_Event *ev);
float pos_SmoothScroll (const iSmoothScroll *);
iBool isFinished_SmoothScroll (const iSmoothScroll *);
/*-----------------------------------------------------------------------------------------------*/
iWidget * makePadding_Widget (int size);
iLabelWidget * makeHeading_Widget (const char *text);
iWidget * makeHDiv_Widget (void);
iWidget * makeVDiv_Widget (void);
iWidget * addAction_Widget (iWidget *parent, int key, int kmods, const char *command);
iBool isAction_Widget (const iWidget *);
/*-----------------------------------------------------------------------------------------------*/
iWidget * makeToggle_Widget (const char *id);
void setToggle_Widget (iWidget *toggle, iBool active);
/*-----------------------------------------------------------------------------------------------*/
iDeclareType(MenuItem)
struct Impl_MenuItem {
const char *label;
int key;
int kmods;
union {
const char *command;
const void *data;
};
};
iWidget * makeMenu_Widget (iWidget *parent, const iMenuItem *items, size_t n); /* returns no ref */
void openMenu_Widget (iWidget *, iInt2 windowCoord);
void openMenuFlags_Widget(iWidget *, iInt2 windowCoord, iBool postCommands);
void closeMenu_Widget (iWidget *);
iLabelWidget * findMenuItem_Widget (iWidget *menu, const char *command);
void setMenuItemDisabled_Widget (iWidget *menu, const char *command, iBool disable);
int checkContextMenu_Widget (iWidget *, const SDL_Event *ev); /* see macro below */
#define processContextMenuEvent_Widget(menu, sdlEvent, stmtEaten) \
for (const int result = checkContextMenu_Widget((menu), (sdlEvent));;) { \
if (result) { {stmtEaten;} return result >> 1; } \
break; \
}
iLabelWidget * makeMenuButton_LabelWidget (const char *label, const iMenuItem *items, size_t n);
void updateDropdownSelection_LabelWidget (iLabelWidget *dropButton, const char *selectedCommand);
/*-----------------------------------------------------------------------------------------------*/
iWidget * makeTabs_Widget (iWidget *parent);
void appendTabPage_Widget (iWidget *tabs, iWidget *page, const char *label, int key, int kmods);
void appendFramelessTabPage_Widget(iWidget *tabs, iWidget *page, const char *title, int shortcut, int kmods);
iWidget * appendTwoColumnTabPage_Widget(iWidget *tabs, const char *title, int shortcut, iWidget **headings,
iWidget **values);
void prependTabPage_Widget (iWidget *tabs, iWidget *page, const char *label, int key, int kmods);
iWidget * removeTabPage_Widget (iWidget *tabs, size_t index); /* returns the page */
void resizeToLargestPage_Widget (iWidget *tabs);
void showTabPage_Widget (iWidget *tabs, const iWidget *page);
void setTabPageLabel_Widget (iWidget *tabs, const iAnyObject *page, const iString *label);
iWidget * tabPage_Widget (iWidget *tabs, size_t index);
iLabelWidget * tabPageButton_Widget (iWidget *tabs, const iAnyObject *page);
iBool isTabButton_Widget (const iWidget *);
void moveTabButtonToEnd_Widget(iWidget *tabButton);
size_t tabPageIndex_Widget (const iWidget *tabs, const iAnyObject *page);
const iWidget * currentTabPage_Widget (const iWidget *tabs);
size_t tabCount_Widget (const iWidget *tabs);
/*-----------------------------------------------------------------------------------------------*/
iWidget * makeSheet_Widget (const char *id);
void useSheetStyle_Widget (iWidget *);
iWidget * makeDialogButtons_Widget (const iMenuItem *actions, size_t numActions);
iWidget * makeTwoColumns_Widget (iWidget **headings, iWidget **values);
iLabelWidget *dialogAcceptButton_Widget (const iWidget *);
iInputWidget *addTwoColumnDialogInputField_Widget(iWidget *headings, iWidget *values,
const char *labelText, const char *inputId,
iInputWidget *input);
void makeFilePath_Widget (iWidget *parent, const iString *initialPath, const char *title,
const char *acceptLabel, const char *command);
iWidget * makeValueInput_Widget (iWidget *parent, const iString *initialValue, const char *title,
const char *prompt, const char *acceptLabel, const char *command);
void updateValueInput_Widget (iWidget *, const char *title, const char *prompt);
iWidget * makeSimpleMessage_Widget(const char *title, const char *msg);
iWidget * makeMessage_Widget (const char *title, const char *msg,
const iMenuItem *items, size_t numItems);
iWidget * makeQuestion_Widget (const char *title, const char *msg,
const iMenuItem *items, size_t numItems);
iWidget * makePreferences_Widget (void);
void updatePreferencesLayout_Widget (iWidget *prefs);
iWidget * makeBookmarkEditor_Widget (void);
iWidget * makeBookmarkCreation_Widget (const iString *url, const iString *title, iChar icon);
iWidget * makeIdentityCreation_Widget (void);
iWidget * makeFeedSettings_Widget (uint32_t bookmarkId);
iWidget * makeTranslation_Widget (iWidget *parent);
const char * languageId_String (const iString *menuItemLabel);
int languageIndex_CStr (const char *langId);
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