121 lines
4.8 KiB
C
121 lines
4.8 KiB
C
#include "./applicationstate.h"
|
|
#include "glib.h"
|
|
#include "gtk/gtkrevealer.h"
|
|
#include "src/core/primitives.h"
|
|
#include "src/core/raster.h"
|
|
#include "src/ui/vektorcanvas.h"
|
|
|
|
typedef struct button_tool_set_data {
|
|
GtkRevealer* revealer;
|
|
VektorAppState* state;
|
|
VektorAppTool tool;
|
|
} button_tool_set_data;
|
|
|
|
static void appstate_set_tool(GtkButton* button, gpointer user_data) {
|
|
button_tool_set_data* data = (button_tool_set_data*)user_data;
|
|
data->state->selectedTool = data->tool;
|
|
|
|
// setting tool makes the sub-tools menu to close
|
|
gtk_revealer_set_reveal_child(data->revealer, FALSE);
|
|
|
|
// setting tool also resets selected primitive
|
|
data->state->selectedPrimitive = NULL;
|
|
}
|
|
|
|
static void appstate_reveal_subtools(GtkButton* button, gpointer user_data) {
|
|
GtkRevealer* revealer = (GtkRevealer*)user_data;
|
|
gboolean visible = gtk_revealer_get_reveal_child(revealer);
|
|
gtk_revealer_set_reveal_child(revealer, !visible);
|
|
}
|
|
|
|
static void canvas_onclick(GtkGestureClick* gesture, int n_press, double x,
|
|
double y, gpointer user_data) {
|
|
|
|
VektorAppState* state = user_data;
|
|
|
|
GtkWidget* widget =
|
|
gtk_event_controller_get_widget(GTK_EVENT_CONTROLLER(gesture));
|
|
|
|
int widget_w = gtk_widget_get_width(widget);
|
|
int widget_h = gtk_widget_get_height(widget);
|
|
|
|
int canvas_w = state->canvas->width;
|
|
int canvas_h = state->canvas->height;
|
|
|
|
V2 normalized_coords =
|
|
(V2){(2 * (x / widget_w)) - 1, 1 - (2 * (y / widget_h))};
|
|
|
|
g_debug("<%f , %f>", normalized_coords.x, normalized_coords.y);
|
|
vektor_appstate_canvas_click(state, normalized_coords.x,
|
|
normalized_coords.y);
|
|
gtk_gl_area_queue_render(GTK_GL_AREA(widget));
|
|
}
|
|
|
|
void vektor_appstate_canvas_click(VektorAppState* state, double x, double y) {
|
|
V2 pos = (V2){x, y};
|
|
|
|
begin_click_dispatch:
|
|
if (state->selectedTool == VektorLineTool) {
|
|
// create new polyline primitive if none is selected
|
|
if (state->selectedPrimitive == NULL) {
|
|
|
|
VektorPolyline* line = vektor_polyline_new();
|
|
VektorPrimitive linePrimitive =
|
|
(VektorPrimitive){.kind = VEKTOR_POLYLINE, .polyline = line};
|
|
vektor_primitivebuffer_add_primitive(state->primitiveBuffer,
|
|
linePrimitive);
|
|
|
|
state->selectedPrimitive =
|
|
&(state->primitiveBuffer
|
|
->primitives[state->primitiveBuffer->count - 1]);
|
|
|
|
} else if (state->selectedPrimitive->kind != VEKTOR_POLYLINE) {
|
|
// selecting a tool resets the selection, so this condition
|
|
// should not happen
|
|
g_warning("Invalid selected primitive; polyline expected");
|
|
state->selectedPrimitive = NULL;
|
|
goto begin_click_dispatch; // retry
|
|
}
|
|
|
|
vektor_polyline_add_point(state->selectedPrimitive->polyline, pos);
|
|
}
|
|
|
|
vektor_framebuffer_rasterize(state->frameBuffer, state->primitiveBuffer);
|
|
vektor_canvas_drawfrom(state->frameBuffer, state->canvas);
|
|
vektor_canvas_update(state->canvas);
|
|
}
|
|
|
|
void vektor_appstate_new(VektorWidgetState* wstate, VektorAppState* stateOut) {
|
|
button_tool_set_data* data_linetool = malloc(sizeof(button_tool_set_data));
|
|
data_linetool->state = stateOut;
|
|
data_linetool->tool = VektorLineTool;
|
|
data_linetool->revealer = wstate->workspaceRevealerShapes;
|
|
|
|
// populate appstate
|
|
stateOut->primitiveBuffer = malloc(sizeof(VektorPrimitiveBuffer));
|
|
*stateOut->primitiveBuffer = (VektorPrimitiveBuffer){0};
|
|
stateOut->frameBuffer = malloc(sizeof(VektorFramebuffer));
|
|
*stateOut->frameBuffer = vektor_framebuffer_new(400, 400);
|
|
stateOut->canvas = malloc(sizeof(VektorCanvas));
|
|
vektor_canvas_init(wstate, stateOut->canvas, stateOut->primitiveBuffer);
|
|
|
|
// link all the buttons
|
|
g_signal_connect(G_OBJECT(wstate->workspaceButtonLinetool), "clicked",
|
|
G_CALLBACK(appstate_set_tool), data_linetool);
|
|
g_signal_connect(G_OBJECT(wstate->workspaceButtonRecttool), "clicked",
|
|
G_CALLBACK(appstate_set_tool), data_linetool);
|
|
g_signal_connect(G_OBJECT(wstate->workspaceButtonCircletool), "clicked",
|
|
G_CALLBACK(appstate_set_tool), data_linetool);
|
|
|
|
// hook subtool revealers to their master buttons
|
|
g_signal_connect(G_OBJECT(wstate->workspaceButtonMasterShapes), "clicked",
|
|
G_CALLBACK(appstate_reveal_subtools),
|
|
wstate->workspaceRevealerShapes);
|
|
|
|
// Add click gesture to canvas
|
|
GtkGesture* canvasClickGesture = gtk_gesture_click_new();
|
|
g_signal_connect(G_OBJECT(canvasClickGesture), "pressed",
|
|
G_CALLBACK(canvas_onclick), stateOut);
|
|
gtk_widget_add_controller(GTK_WIDGET(wstate->workspaceCanvas),
|
|
GTK_EVENT_CONTROLLER(canvasClickGesture));
|
|
} |